There are 128 car parts that start with the letter A. From A-Arm to Axle Vent. Car parts refer to the various components that make up a vehicle, each playing a crucial role in its overall operation and performance. These parts can range from essential functional components like engines and transmissions, to auxiliary parts such as belts and hoses. The proper maintenance and timely replacement of car parts are vital for ensuring vehicle safety, efficiency, and longevity. With advancements in technology, many car parts now include electronic components, enhancing their functionality and enabling features such as automated driving systems and improved infotainment options.

An interesting fact about car parts is that many vehicles contain around 30,000 different parts, and the automotive industry is continuously evolving with new materials and technologies. For instance, lightweight composites are increasingly being used to improve fuel efficiency, while high-strength steel remains a staple for structural components due to its durability.

Here’s what each of the columns in the table means:

Function: A brief description of what the car part does within the vehicle system.

Maintenance Interval (months): The recommended time period after which the part should be inspected or replaced, measured in months.

Replacement Cost (USD): An estimate of the average monetary cost incurred when replacing the part, expressed in U.S. dollars.

Description: A detailed explanation of the car part, including its significance, materials, and placement in the car’s architecture.

Car parts That Start With A

Car parts function maintenance interval (months) replacement cost (USD)
A-Arm Connects the wheel hub to the vehicle’s frame, allowing for vertical suspension movement and steering 12-24 150-800
Abs Wheel Speed Sensor Monitors the rotational speed of a vehicle’s wheels to detect potential wheel lock-up during braking, providing data to the anti-lock braking system (ABS) 12 $50-$150
Absolute Pressure Sensor Measures the absolute pressure inside the engine’s intake manifold 12 50-150
Ac Compressor Compresses refrigerant gas to cool the cabin air conditioning system 24 350
Ac Condenser Condenses the refrigerant gas from the AC compressor into liquid form 24 150
Ac Evaporator Absorbs heat from the cabin air, causing it to cool and be distributed throughout the vehicle 24 250
Ac Hose Transports the refrigerant between the various air conditioning components 24 75
Ac Pressure Switch Monitors the pressure of the refrigerant in the AC system and signals the compressor to turn on or off 12 45
Ac Receiver Dryer Filters and dries the refrigerant, removing any moisture or contaminants 24 100
Ac Refrigerant The liquid coolant that circulates through the air conditioning system to provide cooling 12 50
Ac Thermistor Monitors the temperature of the air entering the evaporator and adjusts the compressor accordingly 12 35
Ac Throttle Body Controls the flow of refrigerant gas to the evaporator based on temperature and demand 12 150
Ac Vacuum Hose Transfers vacuum pressure to operate various AC system components 12 20
Ac Wiring Harness Provides electrical connections and signals to the various AC system components 12 75
Acceleration Sensor Detects the vehicle’s acceleration and deceleration, providing data to the engine control unit for improved performance and efficiency 36 100-300
Accelerator Cable Connects the accelerator pedal to the throttle body, allowing the driver to control the engine’s throttle 24 50-150
Accelerator Linkage Connects the accelerator pedal to the throttle body, translating the driver’s input into throttle opening and engine power 24 $20-$100
Accelerator Pedal Controls the throttle and engine speed to accelerate the vehicle 6 45
Accelerator Position Sensor Monitors the position of the accelerator pedal to optimize engine performance and fuel efficiency 24 50-150
Accelerometer Measures the vehicle’s acceleration and deceleration in multiple axes 12 150
Accessory Belt Transmits power from the engine to various accessories, such as the alternator, water pump, and air conditioning compressor 24 50-150
Accessory Belt Tensioner Maintains the proper tension on the accessory belt to prevent slipping and ensure efficient power transmission 36 50-150
Accessory Drive Belt Transfers power from the engine’s crankshaft to various engine accessories, such as the alternator, water pump, and air conditioning compressor 36 $20-$100
Accessory Drive Pulley Provides a mounting point and rotational force for the various accessories connected to the engine via the accessory belt 36 50-150
Accessory Drive Tensioner Applies the correct tension to the accessory drive belt, ensuring optimal power transmission and preventing belt slippage 48 $50-$200
Accumulator Stores pressurized refrigerant in the air conditioning system, helping maintain consistent pressure and flow. 36 $80 – $200
Activated Carbon Canister Stores fuel vapors from the fuel system and releases them back into the engine for combustion, reducing emissions 24 100-300
Actuator Converts an electrical signal into mechanical motion, controlling various systems and components. 24 $50 – $300
Actuators Mechanical devices that convert electrical or hydraulic signals into physical motion to operate various systems 12 75
Adaptive Cruise Control Module Controls the vehicle’s speed and distance from the car in front, adjusting the throttle and brakes automatically 48 500-1000
Adaptive Cruise Control Radar Uses radar technology to detect the distance and relative speed of the vehicle in front, allowing the cruise control system to automatically adjust the vehicle’s speed to maintain a safe following distance 36 $500-$1,500
Adaptive Cruise Control Sensor Uses radar or lidar to detect the distance and speed of vehicles ahead, adjusting the vehicle’s speed accordingly 12 500
Adaptive Front Lighting System Adjusts the headlight beam pattern to improve visibility and safety in different driving conditions 48 500-1500
Adaptive Headlight Actuator Adjusts the angle of the headlights to improve illumination and visibility based on driving conditions 36 200-500
Adaptive Headlights Automatically adjust the direction and intensity of the headlights to improve visibility and reduce glare, adapting to changes in road conditions and driving situations. 60 $500 – $1,500
Adaptive Suspension Control Module Manages the vehicle’s adaptive suspension system, adjusting the damping and ride height for optimal performance and comfort 36 500-1000
Additives Pump Injects additives, such as fuel injector cleaners or lubricants, into the fuel system to improve engine performance and efficiency 12 50-150
Adhesive Tape Secures wiring harnesses, hoses, and other components in the vehicle 12 5-20
Air Baffle Directs or redirects airflow within the engine compartment, improving cooling efficiency and air intake flow 24 $20-$100
Air Bag Clock Spring Allows the air bag to deploy while maintaining the electrical connection to the steering wheel 48 100-300
Air Bag Control Module Monitors sensors and deploys the airbags in the event of a collision 60 450
Air Bag Control Unit Monitors sensors and deploys the air bags in the event of a collision, protecting the occupants. 120 $300 – $800
Air Bag Sensor Detects the force of an impact and signals the airbag control module to deploy the airbags 60 100
Air Cleaner Assembly Filters the air entering the engine to remove dust and debris 12 50
Air Cleaner Element Filters incoming air to the engine, removing dust, dirt, and other contaminants to protect the engine from premature wear 12 $10-$50
Air Compressor Generates compressed air for pneumatic systems, such as the brakes and suspension 24 250
Air Conditioner Condenser Cools and condenses the refrigerant in the air conditioning system, transferring heat from the refrigerant to the outside air 36 $200-$500
Air Conditioner Evaporator Absorbs heat from the cabin air, causing the refrigerant to evaporate and cool the air that is then circulated into the vehicle’s interior 36 $200-$500
Air Conditioner Expansion Valve Controls the flow of refrigerant into the evaporator, regulating the pressure and temperature to optimize the cooling process 36 $50-$200
Air Conditioner Pressure Switch Monitors the pressure of the refrigerant in the air conditioning system, triggering the compressor to turn on or off as needed to maintain the optimal operating pressure 36 $20-$100
Air Conditioner Receiver Dryer Filters and dries the refrigerant in the air conditioning system, removing moisture and contaminants to prevent system damage 36 $50-$200
Air Conditioner Refrigerant Hose Transports the refrigerant between the various components of the air conditioning system 36 $50-$200
Air Conditioning Clutch Engages and disengages the AC compressor to control the flow of refrigerant 12 100
Air Conditioning Expansion Valve Regulates the flow of refrigerant into the evaporator coil, controlling the cooling capacity of the air conditioning system. 36 $50 – $150
Air Conditioning High Pressure Switch Monitors the high-pressure side of the air conditioning system, shutting off the compressor to prevent damage if the pressure gets too high. 36 $30 – $80
Air Conditioning Low Pressure Switch Monitors the low-pressure side of the air conditioning system, shutting off the compressor to prevent damage if the pressure gets too low. 36 $30 – $80
Air Conditioning Pressure Sensor Measures the pressure of the refrigerant in the air conditioning system, providing data to the control module for efficient operation. 36 $50 – $150
Air Conditioning Relay Provides electrical power to the AC compressor and other system components 12 25
Air Control Valve Regulates the airflow to the engine’s intake system, helping to control the air-fuel ratio and engine speed 24 $50-$200
Air Dam Reduces aerodynamic drag and improves fuel efficiency by directing airflow under the vehicle 24 75
Air Filter Removes dust, dirt, and other contaminants from the air entering the engine 12 20
Air Filter Housing Enclosure that holds the air filter element, providing a secure and protected location for the filter within the engine’s air intake system 36 $50-$200
Air Flow Meter Measures the volume of air entering the engine to optimize fuel delivery 12 150
Air Fuel Ratio Sensor (Oxygen Sensor) Monitors the air-fuel ratio in the exhaust, allowing the engine control unit to adjust the fuel injection to maintain optimal combustion 24 $50-$200
Air Idle Control Valve Regulates the airflow to the engine during idle to maintain a stable engine speed and prevent stalling 24 $50-$200
Air Injection Pump Provides additional air to the exhaust system to reduce emissions 24 150
Air Intake Hose Transports air from the air filter to the throttle body or turbocharger 12 35
Air Intake Manifold Distributes the air from the throttle body to the individual cylinders 24 150
Air Lift Suspension Compressor Provides the pressurized air to inflate the air springs in a vehicle’s air suspension system, allowing for adjustable ride height and improved handling 36 $300-$800
Air Mass Sensor Measures the amount of air entering the engine, providing data to the engine control unit to optimize the fuel injection and ignition timing 24 $100-$300
Air Oil Separator Removes oil mist from the crankcase ventilation system, preventing it from entering the intake system and improving engine performance 36 $50-$200
Air Pressure Sensor Monitors the pressure of the air entering the engine to optimize fuel delivery 12 75
Air Pump Provides pressurized air to the vehicle’s emissions control system, aiding in the oxidation of unburnt hydrocarbons and carbon monoxide in the exhaust 36 $100-$300
Air Suspension Ball Joint Connects the air suspension components to the vehicle’s chassis, allowing for smooth articulation and ride height adjustment 36 $50-$200
Air Suspension Compressor Pumps air into the suspension components to raise and lower the vehicle 24 300
Air Suspension Compressor Relay Provides the electrical signal to activate the air suspension compressor, controlling the inflation and deflation of the air springs 36 $20-$100
Air Suspension Control Module Monitors and controls the air suspension system to maintain the desired ride height 24 350
Air Suspension Height Sensor Measures the distance between the vehicle’s chassis and the suspension components, providing feedback to the air suspension control module 36 $50-$200
Air Suspension Strut Combines the shock absorber and air spring into a single unit, providing both cushioning and adjustable ride height in an air suspension system 36 $300-$800
Air Suspension Valve Block Directs the flow of air to the individual suspension components 24 150
Air Temperature Sensor Measures the temperature of the air entering the engine to optimize fuel delivery 12 45
Alignment Sensors Measure the vehicle’s wheel alignment angles to ensure proper tire wear and optimal driving dynamics 12 50-200
Alternator Generates electrical power to charge the battery and power the vehicle’s electrical systems 24 250
Alternator Belt Connects the alternator to the engine, allowing it to generate electrical power 12 25
Alternator Bracket Mounts the alternator to the engine, providing a secure connection and proper alignment for the alternator belt 36 $20-$100
Alternator Brushes Conduct electricity from the alternator’s rotor to the stator, generating the alternating current that charges the battery 24-36 20-50
Alternator Pulley Connects the alternator to the alternator belt, transferring rotational force from the engine 12 50
Alternator Rectifier Converts the alternating current (AC) generated by the alternator into direct current (DC) for charging the battery and powering the vehicle’s electrical systems 36 $50-$200
Alternator Rotor Spins within the alternator’s stator windings, generating the alternating current (AC) that is then converted to direct current (DC) 36 $100-$300
Alternator Stator Stationary component of the alternator that contains the windings that generate the alternating current (AC) when the rotor spins 36 $100-$300
Alternator Voltage Regulator Controls the alternator’s output voltage to maintain the proper charge in the battery 12 100
Alternator Wiring Harness Provides the electrical connections between the alternator and the vehicle’s electrical system, transmitting the generated power and control signals 36 $20-$100
Anti-Lock Braking System (ABS) Module Monitors the wheel speed sensors and controls the ABS actuators to prevent wheel lock-up during braking 48 350
Anti-Lock Braking System (ABS) Sensor Measures the rotational speed of each wheel to detect potential lock-up 24 75
Anti-Roll Bar Also known as a stabilizer bar, connects the left and right suspension components to reduce body roll during cornering 36 $50-$200
Anti-Roll Bar Bushing Cushions the connection between the anti-roll bar and the suspension components, reducing noise and wear 24 $20-$100
Anti-Roll Bar Endlink Connects the anti-roll bar to the suspension arms, allowing the bar to pivot and transfer stabilizing forces between the left and right sides 24 $20-$100
Antifreeze Level Sensor Monitors the coolant level in the radiator, triggering a warning light if the level drops too low 24 30-80
Antifreeze Reservoir Holds a reserve of engine coolant, allowing the system to compensate for minor leaks or evaporation 48 30-100
Antifreeze Thermostat Regulates the flow of coolant through the engine, helping the engine reach and maintain the optimal operating temperature 36 20-100
Antifreeze Water Pump Circulates the engine coolant through the cooling system, preventing overheating 48 100-300
Armrest Provides a padded surface for the driver or passengers to rest their arms, improving comfort and reducing fatigue on long drives 36 $50-$200
Automatic Transmission Accumulator Helps smooth out pressure changes in the transmission fluid, improving shift quality and reducing wear 60 50-200
Automatic Transmission Control Module Electronically controls the operation of the automatic transmission, managing gear changes, torque converter lockup, and other functions 36 $300-$800
Automatic Transmission Cooler Helps cool the transmission fluid, preventing overheating and extending the life of the transmission 60 100-400
Automatic Transmission Filter Removes contaminants from the transmission fluid, helping to maintain smooth shifting and prevent wear 24 20-100
Automatic Transmission Fluid (ATF) Dipstick Allows the driver to check the level of transmission fluid 6 10
Automatic Transmission Fluid (ATF) Filter Removes contaminants from the transmission fluid to prevent wear and damage 12 25
Automatic Transmission Fluid (ATF) Pump Circulates the transmission fluid throughout the automatic transmission 24 150
Automatic Transmission Fluid (ATF) Sensor Monitors the level, temperature, and pressure of the transmission fluid 12 75
Automatic Transmission Fluid Cooler Helps to maintain the proper operating temperature of the automatic transmission fluid, preventing overheating and premature wear 36 $100-$300
Automatic Transmission Fluid Level Sensor Monitors the fluid level in the automatic transmission, providing feedback to the control module 36 $50-$200
Automatic Transmission Fluid Pump Circulates the automatic transmission fluid throughout the system, providing the necessary pressure and flow for proper lubrication and operation 36 $200-$500
Automatic Transmission Kickdown Cable Connects the accelerator pedal to the transmission, signaling the transmission to downshift when the driver presses the pedal fully 36 $20-$100
Automatic Transmission Mounts Secure the automatic transmission to the vehicle’s chassis, isolating vibrations and absorbing impacts 36 $50-$200
Automatic Transmission Oil Cooler Cools the transmission fluid to prevent overheating and premature wear 24 150
Automatic Transmission Oil Pump Circulates the automatic transmission fluid, providing the necessary pressure and flow for proper lubrication and operation 36 $200-$500
Automatic Transmission Pan Holds the transmission fluid and houses the ATF filter 24 75
Automatic Transmission Shift Cable Connects the transmission’s gear selector to the control mechanism, allowing the driver to choose the desired gear 36 $20-$100
Automatic Transmission Solenoid Controls the flow of transmission fluid to the various clutches and gear sets 24 75
Automatic Transmission Speed Sensor Monitors the rotational speed of the transmission output shaft, providing feedback to the control module for gear shifting and torque converter lockup 36 $50-$200
Automatic Transmission Torque Converter Transfers engine power to the transmission, allowing the engine to idle while the vehicle is stopped 36 $500-$1,500
Automatic Transmission Turbine Shaft Seal Prevents the leakage of automatic transmission fluid from the input shaft area 36 $50-$200
Automatic Transmission Valve Body Directs the flow of transmission fluid to the various components 24 250
Axle Seal Prevents leakage of lubricant from the differential or wheel bearing assembly 24 25
Axle Shaft Transmits power from the differential to the wheels, allowing the vehicle to move 36 150
Axle U-Joint Allows the axle shaft to articulate and transmit power through angles 24 75
Axle Vent Allows air to flow in and out of the differential housing, preventing pressurization 12 10

Descriptions

A-Arm
Critical suspension component that enables precise wheel control and a smooth ride by absorbing shocks and bumps. Requires regular inspection for wear or damage.
Abs Wheel Speed Sensor
Crucial component for the proper functioning of a vehicle’s anti-lock braking system, used to prevent wheel lock-up and maintain steering control during emergency braking
Absolute Pressure Sensor
Used to optimize engine performance and fuel efficiency by providing data to the engine control unit.
Ac Compressor
The AC compressor is a vital component of the vehicle’s air conditioning system. It circulates the refrigerant gas through the system, allowing the evaporator to cool the air that is then distributed throughout the cabin.
Ac Condenser
The AC condenser is responsible for converting the high-pressure, high-temperature refrigerant gas from the compressor into a high-pressure, high-temperature liquid. This process is essential for the proper operation of the air conditioning system.
Ac Evaporator
The AC evaporator is the part of the air conditioning system that absorbs heat from the cabin air, cooling it and providing the desired temperature and comfort for the occupants.
Ac Hose
The AC hoses are flexible lines that carry the refrigerant gas and liquid between the compressor, condenser, and evaporator in the vehicle’s air conditioning system. These hoses must be durable and leak-free to maintain proper system function.
Ac Pressure Switch
The AC pressure switch is a safety device that monitors the refrigerant pressure in the air conditioning system. It ensures the compressor operates within the proper pressure range to prevent damage to the system.
Ac Receiver Dryer
The AC receiver dryer is a critical component in the air conditioning system that filters and dries the refrigerant before it enters the compressor. This helps prevent issues like corrosion, wear, and reduced cooling performance.
Ac Refrigerant
The AC refrigerant is the chemical compound that absorbs and releases heat to provide cooling in the vehicle’s air conditioning system. It is essential for the proper functioning of the air conditioning system.
Ac Thermistor
The AC thermistor is a temperature sensor that monitors the temperature of the air entering the evaporator. It communicates this information to the vehicle’s climate control module, which then adjusts the compressor operation to maintain the desired cabin temperature.
Ac Throttle Body
The AC throttle body is a component in the air conditioning system that regulates the flow of refrigerant gas to the evaporator. It adjusts the flow based on factors like cabin temperature and air conditioning demand to optimize cooling performance.
Ac Vacuum Hose
The AC vacuum hoses are responsible for transmitting vacuum pressure to various components in the air conditioning system, such as the AC clutch and control valves. These hoses must be in good condition to ensure proper system operation.
Ac Wiring Harness
The AC wiring harness is the network of wires and connectors that transmit electrical power and control signals to the different components of the vehicle’s air conditioning system, allowing them to function as intended.
Acceleration Sensor
The acceleration sensor, also called a G-sensor, measures the vehicle’s longitudinal, lateral, and vertical acceleration. This information is used by the engine control unit to optimize fuel injection, ignition timing, and other engine parameters for better acceleration, fuel economy, and stability.
Accelerator Cable
The accelerator cable is a mechanical linkage that translates the driver’s input on the accelerator pedal into a corresponding opening of the throttle, enabling the engine to increase or decrease power as needed.
Accelerator Linkage
Mechanical linkage that transmits the driver’s acceleration request from the pedal to the engine’s throttle, ensuring a responsive and smooth acceleration
Accelerator Pedal
The accelerator pedal is a crucial component that regulates the vehicle’s speed by controlling the engine’s throttle. It is typically located near the driver’s right foot and is connected to the throttle body or fuel injection system.
Accelerator Position Sensor
Sends a signal to the engine control unit to adjust the engine’s fuel and air mixture based on the driver’s input.
Accelerometer
The accelerometer is an electronic sensor that detects and measures the acceleration forces acting on the vehicle. It is used for various functions, such as electronic stability control, traction control, and accident data recording.
Accessory Belt
The accessory belt, also known as the serpentine belt, is a long, flexible belt that runs around multiple pulleys, including the crankshaft, alternator, and other engine-driven components. It ensures the proper operation of these accessories by providing the necessary power transfer.
Accessory Belt Tensioner
Helps extend the lifespan of the accessory belt and the components it drives.
Accessory Drive Belt
Rubber or composite belt that runs over multiple pulleys to drive essential vehicle components, requiring periodic inspection and replacement to maintain proper engine performance
Accessory Drive Pulley
The accessory drive pulley is a component that is mounted on the engine and serves as the interface between the engine’s crankshaft and the accessory belt. It transfers the rotational force from the engine to the various accessories, such as the alternator, water pump, and air conditioning compressor.
Accessory Drive Tensioner
Mechanism that adjusts the tension on the accessory drive belt, compensating for belt wear and maintaining the optimal operating conditions for the engine’s ancillary components
Accumulator
The accumulator is a key component in the air conditioning system, collecting and storing refrigerant. It helps regulate pressure and prevent liquid refrigerant from entering the compressor, improving system performance and longevity.
Activated Carbon Canister
The activated carbon canister, also known as the evaporative emissions control (EVAP) canister, is a component in the vehicle’s fuel system that collects and stores fuel vapors. It helps to prevent these vapors from being released into the atmosphere, contributing to improved environmental compliance and fuel efficiency.
Actuator
Actuators are electromechanical devices that translate an electrical input signal into physical movement, allowing for remote or automated control of components like valves, doors, and other mechanisms in the vehicle.
Actuators
Actuators are electromechanical or electrohydraulic devices that convert control system inputs into physical movement to operate various automotive systems, such as doors, windows, and suspension components.
Adaptive Cruise Control Module
The adaptive cruise control module is an advanced driver assistance system that uses sensors, such as radar or cameras, to detect the distance and speed of the vehicle in front. It then automatically adjusts the throttle and brakes to maintain a safe following distance, providing a more comfortable and efficient driving experience.
Adaptive Cruise Control Radar
Advanced cruise control feature that uses radar or camera sensors to monitor the surrounding traffic, automatically adjusting the vehicle’s speed to maintain a safe following distance and prevent collisions
Adaptive Cruise Control Sensor
The adaptive cruise control sensor is a sophisticated device that uses advanced technology, such as radar or lidar, to monitor the vehicles ahead and adjust the host vehicle’s speed to maintain a safe following distance, even in stop-and-go traffic.
Adaptive Front Lighting System
Helps the driver see better around curves and in varying road and weather conditions, enhancing both safety and driving comfort.
Adaptive Headlight Actuator
The adaptive headlight actuator is a mechanism that dynamically adjusts the angle of the vehicle’s headlights. This feature helps to improve visibility and road illumination by directing the light beam towards the intended direction of travel, particularly when cornering or navigating winding roads.
Adaptive Headlights
Adaptive headlights use sensors and electronic controls to dynamically adjust the beam pattern and intensity of the headlights, providing better illumination around corners and in varying driving conditions, improving safety and visibility.
Adaptive Suspension Control Module
The adaptive suspension control module is a sophisticated electronic unit that monitors and adjusts the vehicle’s suspension system in real-time. It uses sensors to detect driving conditions, vehicle speed, and other parameters, and then automatically adjusts the suspension settings to provide a smooth, comfortable, and responsive ride.
Additives Pump
The additives pump is a component that is responsible for introducing various chemical additives into the vehicle’s fuel system. These additives can help clean fuel injectors, improve combustion, and enhance engine performance and fuel economy.
Adhesive Tape
Provides a durable and flexible attachment solution for various vehicle components, ensuring they remain in place.
Air Baffle
Component that guides the airflow around the engine, either to channel cooling air to critical components or to direct the incoming air into the engine’s air intake system for optimal combustion
Air Bag Clock Spring
Ensures the air bag system can function properly by maintaining a continuous electrical circuit between the steering wheel and the rest of the vehicle.
Air Bag Control Module
The airbag control module is the central electronic unit that processes data from various sensors throughout the vehicle to detect a collision and determine the appropriate timing and deployment of the airbags to protect the occupants.
Air Bag Control Unit
The air bag control unit is the central brain of the air bag system, continuously monitoring various sensors to detect a collision and promptly deploy the appropriate air bags to cushion the occupants and mitigate injury.
Air Bag Sensor
Airbag sensors are strategically placed throughout the vehicle to monitor for sudden deceleration or impact forces that indicate a collision. These sensors communicate with the airbag control module to trigger the deployment of the airbags at the correct time to provide maximum protection for the occupants.
Air Cleaner Assembly
The air cleaner assembly is a crucial component that filters the air entering the engine, removing contaminants that could potentially cause damage to the engine’s internal components. It is essential for maintaining engine performance and longevity.
Air Cleaner Element
Replaceable air filter cartridge or element that traps particulates and impurities from the air entering the engine, ensuring a clean air supply for efficient combustion and engine protection
Air Compressor
The air compressor is responsible for producing and supplying the compressed air that is used to operate various pneumatic systems in the vehicle, such as the brakes and air suspension components.
Air Conditioner Condenser
Heat exchanger that removes heat from the refrigerant in the air conditioning system, converting the refrigerant from a gas to a liquid by dissipating the heat to the surrounding air
Air Conditioner Evaporator
Heat exchanger located inside the vehicle’s cabin that absorbs heat from the air, causing the refrigerant to evaporate and provide cooling to the passenger compartment
Air Conditioner Expansion Valve
Metering device that precisely meters the amount of refrigerant entering the evaporator, ensuring efficient heat transfer and maintaining the proper operating conditions in the air conditioning system
Air Conditioner Pressure Switch
Safety switch that prevents damage to the air conditioning system by monitoring the refrigerant pressure and signaling the compressor to turn on or off as required to maintain the proper operating conditions
Air Conditioner Receiver Dryer
Component that captures and removes any moisture or contaminants from the refrigerant, ensuring the air conditioning system operates efficiently and preventing corrosion or other issues
Air Conditioner Refrigerant Hose
Flexible high-pressure hose that carries the refrigerant from the compressor to the condenser, evaporator, and other air conditioning system components
Air Conditioning Clutch
The air conditioning clutch is an electromagnetic clutch that engages and disengages the AC compressor, allowing the compressor to cycle on and off as needed to maintain the desired cabin temperature and efficiently use the vehicle’s engine power.
Air Conditioning Expansion Valve
The expansion valve is a critical component of the air conditioning system, responsible for metering the flow of refrigerant into the evaporator coil. This precise control helps maintain optimal cooling performance and efficiency.
Air Conditioning High Pressure Switch
This switch is part of the safety mechanisms in the air conditioning system, continuously monitoring the high-pressure side. If the pressure rises beyond a safe level, the switch will cut power to the compressor to prevent damage and potential refrigerant leaks.
Air Conditioning Low Pressure Switch
Similar to the high-pressure switch, the low-pressure switch is a safety device that monitors the low-pressure side of the air conditioning system. If the pressure drops below a safe level, the switch will disable the compressor to prevent damage to the system.
Air Conditioning Pressure Sensor
This sensor monitors the pressure of the refrigerant in the air conditioning system, relaying this information to the control module. This real-time pressure data is used to optimize the system’s performance, ensuring efficient cooling and preventing potential issues.
Air Conditioning Relay
The air conditioning relay is an electrical switch that controls the power supply to the AC compressor and other related components in the vehicle’s air conditioning system. It is responsible for turning the compressor on and off as directed by the climate control system.
Air Control Valve
Electronically controlled valve that adjusts the amount of air entering the engine, allowing the engine management system to optimize the air-fuel mixture for efficient combustion and performance
Air Dam
The air dam is a plastic or metal panel installed at the front of the vehicle, just below the bumper. It helps to improve aerodynamics and fuel efficiency by directing airflow under the vehicle, reducing drag and turbulence.
Air Filter
The air filter is a critical component that traps and removes particulates from the air before it enters the engine, protecting the engine’s internal components from premature wear and damage caused by abrasive contaminants.
Air Filter Housing
Sturdy housing that contains the replaceable air filter element, shielding it from physical damage and ensuring the proper airflow into the engine’s intake system
Air Flow Meter
The air flow meter, also known as a mass air flow (MAF) sensor, is responsible for measuring the amount of air flowing into the engine. This information is used by the engine control module to precisely adjust the fuel injection to maintain the optimal air-fuel ratio for efficient combustion.
Air Fuel Ratio Sensor (Oxygen Sensor)
Sensor that measures the oxygen content in the exhaust gases, providing feedback to the engine management system to ensure the air-fuel mixture is at the ideal stoichiometric ratio for efficient and clean combustion
Air Idle Control Valve
Electronically controlled valve that adjusts the amount of air bypassing the throttle body during engine idling, ensuring the engine runs smoothly and at the desired speed without the driver pressing the accelerator pedal
Air Injection Pump
The air injection pump is a component in the vehicle’s emission control system that supplies additional air to the exhaust stream, which helps to further oxidize unburnt fuel and reduce the amount of pollutants released into the atmosphere.
Air Intake Hose
The air intake hose is responsible for channeling the filtered air from the air cleaner assembly to the throttle body or turbocharger, ensuring a smooth and unobstructed flow of air into the engine for efficient combustion.
Air Intake Manifold
The air intake manifold is a vital component that receives the air from the throttle body and evenly distributes it to the individual engine cylinders. This ensures a balanced air-fuel mixture for optimum engine performance and efficiency.
Air Lift Suspension Compressor
Electric or engine-driven air compressor that supplies the pressurized air needed to inflate the air bladders or air springs in an air suspension system, enabling the vehicle to raise or lower its ride height as needed
Air Mass Sensor
Electronic sensor that determines the mass flow rate of the air entering the engine, allowing the engine management system to precisely control the fuel injection and ignition timing for optimal performance and efficiency
Air Oil Separator
Component that separates oil droplets from the blow-by gases in the engine’s crankcase ventilation system, reducing oil consumption and preventing contamination of the intake system
Air Pressure Sensor
The air pressure sensor, also known as a manifold absolute pressure (MAP) sensor, measures the pressure of the air entering the engine. This information is used by the engine control module to determine the appropriate fuel delivery for efficient combustion.
Air Pump
Electric or engine-driven air pump that supplies additional air to the exhaust system, enhancing the catalytic converter’s ability to further reduce harmful emissions by providing more oxygen for the chemical reactions
Air Suspension Ball Joint
Specialized ball joint that links the air springs, shock absorbers, or other air suspension components to the vehicle’s frame or suspension, enabling the wheels to move independently while maintaining the desired ride height
Air Suspension Compressor
The air suspension compressor is a critical component in vehicles equipped with an air suspension system. It is responsible for pumping air into the air springs and shock absorbers to adjust the vehicle’s ride height and handling characteristics.
Air Suspension Compressor Relay
Relay that switches the power supply to the air suspension compressor, allowing the vehicle’s control system to raise or lower the ride height by inflating or deflating the air springs as needed
Air Suspension Control Module
The air suspension control module is the electronic brain that manages the air suspension system, monitoring various sensors and adjusting the air pressure in the suspension components to maintain the vehicle’s optimal ride height and handling characteristics.
Air Suspension Height Sensor
Sensor that detects the relative position between the vehicle’s body and the suspension, allowing the air suspension control module to maintain the optimal ride height by adjusting the air pressure in the suspension
Air Suspension Strut
Integrated suspension component that incorporates a shock absorber and an air bladder or air spring, enabling the vehicle’s ride height to be electronically adjusted while also absorbing road shocks and vibrations
Air Suspension Valve Block
The air suspension valve block is a critical component that directs the flow of air from the air suspension compressor to the individual air springs and shock absorbers, allowing the suspension system to raise, lower, and maintain the desired ride height.
Air Temperature Sensor
The air temperature sensor, also known as the intake air temperature (IAT) sensor, monitors the temperature of the air entering the engine. This information is used by the engine control module to adjust the fuel delivery for optimal combustion and performance.
Alignment Sensors
Electronic sensors that monitor camber, caster, and toe alignment of the wheels. Crucial for maintaining safe and efficient vehicle handling.
Alternator
The alternator is a generator that converts mechanical energy from the engine into electrical energy to charge the vehicle’s battery and power the various electrical components and systems. It is essential for maintaining the proper operation of the vehicle’s electrical system.
Alternator Belt
The alternator belt, also known as the drive belt, is a crucial component that physically links the alternator to the engine. As the engine runs, the belt transfers the mechanical power to the alternator, enabling it to generate the electrical energy needed to charge the battery and power the vehicle’s electrical systems.
Alternator Bracket
Sturdy metal bracket that holds the alternator in place on the engine, ensuring the alternator pulley is properly aligned with the drive belt to maintain efficient power generation
Alternator Brushes
Small carbon or copper components that can wear down over time, reducing the alternator’s efficiency. Regular replacement helps maintain a reliable electrical system.
Alternator Pulley
The alternator pulley is the component that the alternator belt wraps around, allowing the mechanical power from the engine to be transferred to the alternator. This pulley is essential for ensuring the efficient conversion of engine power into electrical energy.
Alternator Rectifier
Electronic component within the alternator that converts the alternating current (AC) produced by the alternator’s rotor into direct current (DC), which is then used to charge the vehicle’s battery and power the electrical systems
Alternator Rotor
Rotating component of the alternator that houses the field windings, which create a magnetic field that induces an electric current in the stator windings as the rotor spins, producing the alternating current (AC) that is converted to direct current (DC)
Alternator Stator
Set of windings within the alternator housing that surround the rotating rotor, generating the alternating current (AC) as the rotor’s magnetic field passes through the stator coils
Alternator Voltage Regulator
The alternator voltage regulator is an electronic component that monitors the battery voltage and adjusts the alternator’s output to maintain the appropriate charging voltage. This ensures the battery is kept in a fully charged state to support the vehicle’s electrical systems.
Alternator Wiring Harness
Wiring bundle that connects the alternator to the battery, voltage regulator, and other electrical components, allowing the alternator to charge the battery and power the vehicle’s electrical systems
Anti-Lock Braking System (ABS) Module
The ABS module is the electronic control unit that manages the anti-lock braking system. It continuously monitors the wheel speed sensors and adjusts the brake pressure at each wheel to prevent the wheels from locking up during hard braking, maintaining vehicle stability and control.
Anti-Lock Braking System (ABS) Sensor
The ABS sensors are mounted on each wheel and measure the rotational speed of the wheels. This information is sent to the ABS module, which can then detect if a wheel is about to lock up and adjust the brake pressure accordingly to prevent the loss of traction and maintain steering control.
Anti-Roll Bar
Torsion bar that links the left and right suspension arms, creating a stabilizing force that counteracts the vehicle’s tendency to lean or roll during turns and sudden maneuvers, improving handling and ride quality
Anti-Roll Bar Bushing
Flexible rubber or polyurethane bushing that isolates the anti-roll bar from the suspension arms or other mounting points, absorbing vibrations and allowing the bar to pivot smoothly as the suspension moves
Anti-Roll Bar Endlink
Linkage that attaches the anti-roll bar to the vehicle’s suspension components, enabling the torsion bar to articulate and transmit the cornering forces between the left and right wheels
Antifreeze Level Sensor
Electronic sensor that alerts the driver to potential cooling system issues, preventing overheating and engine damage.
Antifreeze Reservoir
Plastic or metal container that stores extra antifreeze, ensuring the cooling system maintains the proper fluid level and preventing overheating.
Antifreeze Thermostat
Thermostatic valve that opens and closes to control the circulation of antifreeze, ensuring efficient and consistent engine cooling.
Antifreeze Water Pump
Centrifugal pump driven by the engine’s serpentine belt, responsible for continuously moving the antifreeze solution through the engine block, radiator, and hoses.
Armrest
Padded, hinged component typically located on the door panel or center console that allows the driver or passengers to comfortably rest their arms during operation of the vehicle
Automatic Transmission Accumulator
Hydraulic component that absorbs and releases fluid pressure to dampen pressure fluctuations, ensuring seamless gear changes and prolonging the life of the transmission.
Automatic Transmission Control Module
Electronic control unit that processes input from various sensors and controls the actuators and solenoids within the automatic transmission, ensuring smooth, efficient gear shifts and optimal power delivery
Automatic Transmission Cooler
Heat exchanger that uses engine coolant or outside air to lower the temperature of the transmission fluid, which can reach very high temperatures during normal operation.
Automatic Transmission Filter
Replaceable filter element that traps dirt, debris, and metal particles, ensuring the transmission fluid remains clean and preserving the transmission’s components.
Automatic Transmission Fluid (ATF) Dipstick
The ATF dipstick is a simple but essential component that enables the driver to manually check the level of transmission fluid in the vehicle’s automatic transmission. This allows the fluid level to be topped up as needed to ensure proper lubrication and operation of the transmission.
Automatic Transmission Fluid (ATF) Filter
The automatic transmission fluid (ATF) filter is responsible for trapping and removing debris, metal particles, and other contaminants from the transmission fluid as it circulates through the system. This helps to maintain the fluid’s integrity and ensure the proper operation of the transmission.
Automatic Transmission Fluid (ATF) Pump
The ATF pump is a critical component in the automatic transmission that is responsible for continuously circulating the transmission fluid throughout the various components of the transmission. This ensures adequate lubrication and cooling to prevent wear and maintain proper operation.
Automatic Transmission Fluid (ATF) Sensor
The ATF sensors in an automatic transmission monitor various parameters of the transmission fluid, such as level, temperature, and pressure. This information is sent to the transmission control module to ensure the fluid is maintained within the optimal operating range and to detect any potential issues.
Automatic Transmission Fluid Cooler
Heat exchanger that cools the automatic transmission fluid, typically located in the engine’s cooling system or airflow, ensuring the transmission operates within the manufacturer’s recommended temperature range
Automatic Transmission Fluid Level Sensor
Sensor that detects the fluid level in the automatic transmission, allowing the control module to identify any issues with low fluid levels and trigger a warning light or message for the driver
Automatic Transmission Fluid Pump
Electric or hydraulically-driven pump that maintains the flow of automatic transmission fluid to the various components within the transmission, ensuring adequate lubrication and cooling
Automatic Transmission Kickdown Cable
Mechanical cable that transmits the driver’s request for maximum acceleration to the automatic transmission, triggering a downshift to a lower gear to provide increased power and responsiveness
Automatic Transmission Mounts
Rubber or hydraulic mounts that hold the automatic transmission in place, dampening the transmission’s movements and reducing the transfer of noise, vibration, and harshness to the vehicle’s structure
Automatic Transmission Oil Cooler
The automatic transmission oil cooler is a heat exchanger that helps to dissipate the heat generated by the transmission during operation. By keeping the transmission fluid at the optimal temperature, the cooler helps to prevent overheating and extends the life of the transmission components.
Automatic Transmission Oil Pump
Internal pump within the automatic transmission that draws fluid from the sump and circulates it through the various components, ensuring adequate lubrication and cooling for the gears, clutches, and other moving parts
Automatic Transmission Pan
The automatic transmission pan is the removable bottom cover of the transmission that holds the transmission fluid and houses the ATF filter. It allows access to the filter for regular maintenance and inspection of the fluid level and condition.
Automatic Transmission Shift Cable
Mechanical cable that transmits the driver’s gear selection from the shifter to the automatic transmission, enabling the control module to engage the appropriate gear based on the driver’s input
Automatic Transmission Solenoid
The automatic transmission solenoids are electronically controlled valves that regulate the flow of transmission fluid to the different clutches and gear sets within the transmission. This allows the transmission control module to precisely control the gear shifting and torque transfer for smooth, efficient operation.
Automatic Transmission Speed Sensor
Sensor that detects the speed of the automatic transmission’s output shaft, transmitting this information to the control module so it can determine the optimal gear ratio and torque converter lockup points
Automatic Transmission Torque Converter
Fluid coupling device that connects the engine’s crankshaft to the transmission, enabling the engine to spin independently of the transmission’s input shaft, allowing the vehicle to idle or creep forward without the need to fully engage the clutch
Automatic Transmission Turbine Shaft Seal
Specialized seal that sits around the input shaft of the automatic transmission, creating a tight barrier to prevent the loss of transmission fluid and maintain proper lubrication and operation of the internal components
Automatic Transmission Valve Body
The automatic transmission valve body is a complex assembly of valves, passages, and channels that controls the flow of transmission fluid to the different clutches, gears, and other components within the transmission. It is essential for the proper operation and shifting of the automatic transmission.
Axle Seal
The axle seal is a critical component that forms a tight, durable seal around the axle shaft, preventing the loss of lubricant from the differential or wheel bearing assembly. Maintaining the integrity of the axle seal is essential to avoid contamination and premature wear of these critical components.
Axle Shaft
The axle shafts are responsible for transferring the rotational power from the differential to the vehicle’s wheels, enabling the wheels to turn and propel the vehicle forward or backward. They are a vital component in the vehicle’s drivetrain.
Axle U-Joint
The axle U-joints, also known as universal joints, are flexible couplings that connect the axle shaft to the differential and the wheel hub. They allow the axle shaft to articulate and transmit power through various angles, enabling the wheels to move independently and the vehicle to navigate curves and turns.
Axle Vent
The axle vent is a small opening or valve that allows air to flow in and out of the differential housing as the temperature and pressure inside the housing change. This helps to prevent excessive pressurization, which could lead to fluid leaks or differential component failure.

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