There are 63 car parts that start with the letter G. From Gage Wheel to Gyroscope. 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 G

Car parts function maintenance interval (months) replacement cost (USD)
Gage Wheel A small, auxiliary wheel that is used to monitor the depth or height of a component, such as a suspension system. 12 20
Galvanized Steel Provides corrosion resistance and durability for various automotive components. 24 50-150
Garter Spring Helps hold the piston ring in place within the cylinder bore to maintain compression and seal 12 $5-$15
Gas Cap The removable cover that seals the fuel tank opening and prevents fuel from spilling or vapors from escaping. 12 10
Gas Charge Provides supplemental pressure in the fuel system to aid in fuel delivery 24 $50-$150
Gas Gauge Measures and displays the amount of fuel remaining in the fuel tank 12 $20-$75
Gas Guzzler Tax A federal excise tax applied to vehicles with low fuel efficiency N/A Varies
Gas Lift Charge Provides a small amount of lift to the rear of the vehicle to improve handling and stability 24 $75-$200
Gas Line Transports fuel from the fuel tank to the engine 12 $10-$50
Gas Mileage The distance a vehicle can travel on a given amount of fuel N/A N/A
Gas Pedal Also known as the accelerator pedal, the component that the driver presses to control the engine’s throttle and speed. 24 50
Gas Tank Stores the vehicle’s fuel supply 60 $200-$800
Gas Tank Cap Seals the gas tank opening to prevent fuel leakage and evaporation 12 $5-$20
Gasket A seal used to prevent leaks between two or more mating surfaces in a car engine or other automotive components. 6 10
Gasoline Direct Injection (GDI) Injects fuel directly into the engine’s cylinders for improved efficiency 36 $500-$1,500
Gauge Measures various vehicle parameters such as speed, engine RPM, fuel level, oil pressure, etc. 12 30-100
Gauge Cluster The collection of instruments and displays, typically located in the dashboard, that provide the driver with information about the vehicle’s performance and systems. 24 150
Gear A toothed wheel that meshes with another toothed mechanism to transmit rotational force and change speed or direction. 12 50
Gear Bearing Gear Housing Gear Indicator Gear Ratio
Gear Cable The cable that transmits the driver’s input from the gearshift lever to the transmission in a manual transmission vehicle. 24 75
Gear Lever Gaiter A flexible, protective cover that surrounds the gear lever in a manual transmission car. 12 20
Gear Oil A specialized lubricating oil used in the transmission, differential, and other gear-driven components of a vehicle. 12 30
Gear Position Sensor An electronic sensor that monitors the gear selection in an automatic transmission and provides feedback to the vehicle’s computer. 24 75
Gear Puller A tool used to safely remove gears, pulleys, or other components from a shaft or axle. N/A 50
Gear Ratio The ratio between the number of teeth on the driven gear and the number of teeth on the driving gear in a transmission or differential. N/A N/A
Gear Selector Shaft The shaft that connects the gearshift lever to the transmission, allowing the driver to select the desired gear. 24 75
Gear Shifter The mechanism, including the shift lever and associated linkages, that allows the driver to select the desired gear in a manual transmission vehicle. 24 100
Gear Shifting Fork A component in a manual transmission that physically moves the gears into position when the driver shifts gears. 24 50
Gear Synchronizer A mechanism in a manual transmission that helps to smoothly engage the gears by matching the speeds of the rotating components. 24 100
Gear Tooth The individual projections on the circumference of a gear that mesh with the teeth of another gear to transmit rotational motion. N/A N/A
Gear Train The series of gears within a transmission or differential that transfer power from the engine to the wheels. 24 300
Gear Wear Indicator A visual or electronic indicator that signals when the gears in a transmission or differential have experienced excessive wear and need to be replaced. 24 25
Gearbox A device that uses gears to change the speed and torque of a rotating shaft. 24 500
Gearshift Boot A protective cover that surrounds the gearshift lever, sealing the opening in the center console. 12 30
Gearshift Knob The removable knob that sits at the top of the gearshift lever, providing a comfortable grip for the driver. 12 20
Gearshift Lever The lever used to engage different gears in a manual transmission car. 12 75
Gearshift Linkage The system of rods, levers, and joints that connect the gearshift lever to the transmission. 24 150
Gearshift Selector The mechanism that allows the driver to choose the desired gear in an automatic transmission car. 24 100
Generator Converts mechanical energy into electrical energy 36 $200-$500
Gimbals Allow the steering wheel to rotate and tilt, providing a comfortable driving position. 72 50-150
Glove Box The enclosed storage compartment located on the dashboard of a car, typically used to store small items. 24 50
Glove Box Latch The mechanism that secures the glove box door in the closed position and allows the driver or passenger to open it. 12 15
Glow Plug A heating element used to assist in starting a diesel engine, especially in cold weather. 12 50
Glow Plug Controller Manages the operation of the glow plugs 36 $50-$150
Grab Handle A sturdy handle or strap installed in a car, typically near the doors or above the seats, to assist passengers in entering and exiting the vehicle. 24 25
Grease Fittings Small, threaded connectors that allow grease to be injected into automotive components, such as ball joints or wheel bearings. 6 5
Grille The front-facing opening in the body of a car, typically covered by a protective mesh or slats, that allows air to flow into the engine compartment. 24 100
Grommet Protects wires, cables, or hoses as they pass through holes or openings. N/A 1-10
Grommet Seal A rubber or plastic seal that fits around a wiring harness or hose to prevent leaks or the entry of contaminants. 12 5
Grommets Rubber or plastic rings used to protect wires, cables, or hoses as they pass through holes in metal or plastic automotive parts. 12 5
Ground Clearance The distance between the lowest point of the vehicle and the ground. N/A N/A
Ground Strap A electrical connection that provides a path for current to flow back to the vehicle’s ground or chassis. 12 10
Ground Strap Connection The electrical connection point where the ground strap is attached to the vehicle’s chassis or other grounding point. 12 10
Guarantee A written promise from the manufacturer or seller to repair or replace a car part or component if it fails within a specified period of time. N/A N/A
Guard A protective covering or shield for a car part or component, such as a skid plate or wheel well liner. 24 50
Guidance System An advanced driver assistance system (ADAS) that uses sensors and software to guide the vehicle and assist the driver. 24 500
Guide Bushings Cylindrical sleeves that help to align and guide the movement of automotive components, such as pistons or valves. 12 15
Guide Pins Metal pins that help to align and secure components during assembly or disassembly. 12 10
Guillotine Valve A type of throttle valve used in some older car engines to control the amount of air entering the engine. 24 75
Gunwhale The upper edge or lip of a car’s fender or wheel well, which helps to protect the body from damage. 24 25
Gurney Flap A small, adjustable spoiler on the rear of a vehicle that improves downforce and aerodynamics. N/A 100-500
Gusset A reinforcing plate or brace used to strengthen the connection between two or more automotive components. 24 20
Gyroscope Senses and measures the orientation and rotation of a vehicle. 60 100-500

Descriptions

Gage Wheel
A gage wheel, also known as a feeler wheel, is a small, auxiliary wheel that is used to measure the depth or height of a component, such as a suspension system or other automotive part. It helps technicians accurately assess the clearance or position of critical components during maintenance or repair procedures.
Galvanized Steel
Galvanized steel is a type of steel that has been coated with a thin layer of zinc to protect it from rust and corrosion. It is commonly used in the manufacture of car parts such as body panels, exhaust systems, and suspension components.
Garter Spring
A small, circular spring installed between the piston and the cylinder wall to keep the piston ring securely positioned.
Gas Cap
The gas cap is the removable cover that seals the fuel tank opening on a vehicle. It helps to prevent fuel from spilling and fuel vapors from escaping, ensuring the fuel system operates safely and efficiently. Proper gas cap installation is important for maintaining fuel system integrity.
Gas Charge
A pressurized gas (often nitrogen) used to maintain consistent fuel pressure and flow in the fuel system, especially in high-performance engines.
Gas Gauge
An instrument that visually indicates the fuel level, allowing the driver to monitor the fuel supply and avoid running out unexpectedly.
Gas Guzzler Tax
A tax imposed on the sale of vehicles that do not meet certain fuel economy standards, intended to discourage the purchase of vehicles with poor gas mileage.
Gas Lift Charge
A compressed gas (often nitrogen) used to pressurize a vehicle’s rear shock absorbers or air suspension system, slightly raising the rear of the vehicle for better weight distribution and traction.
Gas Line
The flexible or rigid pipe that carries gasoline or diesel fuel from the fuel tank to the engine, ensuring a continuous supply of fuel.
Gas Mileage
The fuel efficiency of a vehicle, typically measured in miles per gallon (MPG) or kilometers per liter, which is an important factor in a vehicle’s operating costs and environmental impact.
Gas Pedal
The gas pedal, or accelerator pedal, is the primary control used by the driver to regulate the engine’s throttle and, consequently, the vehicle’s speed. It is connected to the throttle body or fuel injection system, and pressing the pedal increases the engine’s power output and acceleration.
Gas Tank
The main storage container for the fuel used to power the engine, typically made of steel or plastic and located in a protected area of the vehicle.
Gas Tank Cap
Also called the ‘gas cap’, this threaded cover secures the opening of the fuel tank, keeping dirt, debris, and fuel vapors from escaping.
Gasket
A thin, pliable material that is placed between two components to create a tight seal and prevent leaks of fluids or gases. Gaskets are essential for maintaining the proper functioning of various automotive systems.
Gasoline Direct Injection (GDI)
A fuel system that uses high-pressure injectors to spray fuel directly into the combustion chambers, rather than into the intake manifold, resulting in increased power, better fuel economy, and lower emissions.
Gauge
A dashboard instrument that displays the status of different vehicle systems. Requires regular calibration and replacement if the display becomes inaccurate or unreadable.
Gauge Cluster
The gauge cluster is the group of instruments, indicators, and displays that are typically located in the dashboard of a vehicle. It provides the driver with essential information about the car’s performance, such as speed, engine RPM, fuel level, and other critical system status updates, allowing the driver to monitor the vehicle’s operation.
Gear
A mechanical component that is used to transmit power and change the speed or direction of rotation in a car’s drivetrain or other automotive systems. Gears come in various shapes and sizes to suit different applications.
Gear Bearing
Gear Reduction Unit
Gear Cable
The gear cable, also known as the shift cable, is a flexible, wire-like cable that connects the gearshift lever to the transmission in a manual transmission car. It allows the driver’s input at the gearshift lever to be translated into the appropriate gear selection within the transmission.
Gear Lever Gaiter
The gear lever gaiter is a flexible, often leather or rubber, cover that fits around the base of the gear lever in a manual transmission vehicle. It helps to seal the opening in the center console, preventing dirt, dust, and other contaminants from entering the vehicle’s interior.
Gear Oil
Gear oil is a specialized lubricant designed for use in the gears and other rotating components of a vehicle’s transmission, differential, and other gear-driven systems. It is formulated to provide the necessary lubrication, wear protection, and heat resistance to ensure proper operation and long life of these critical automotive parts.
Gear Position Sensor
The gear position sensor is an electronic component that detects the current gear selection in an automatic transmission and sends this information to the vehicle’s on-board computer. This allows the computer to adjust engine performance, transmission operation, and other systems based on the current driving conditions and gear selection.
Gear Puller
A gear puller is a specialized tool used to safely and effectively remove gears, pulleys, or other components that are tightly fitted onto a shaft or axle. It applies an even, controlled force to the component, allowing it to be separated without damage to the part or the surrounding components.
Gear Ratio
The gear ratio is the relationship between the number of teeth on the driven gear and the number of teeth on the driving gear in a transmission or differential. It determines the amount of torque multiplication or speed reduction that occurs, allowing the vehicle to achieve different performance characteristics at different speeds.
Gear Selector Shaft
The gear selector shaft is the mechanical link between the gearshift lever and the transmission in a manual transmission vehicle. It transmits the driver’s input from the gearshift lever to the transmission, enabling the selection of the appropriate gear for the current driving conditions.
Gear Shifter
The gear shifter, also known as the gearshift or shift lever, is the mechanism that enables the driver to select the desired gear in a manual transmission vehicle. It includes the physical shift lever, as well as the associated linkages, cables, and other components that translate the driver’s inputs into the appropriate gear selection in the transmission.
Gear Shifting Fork
The gear shifting fork is a mechanical component in a manual transmission that physically engages and moves the gears into the appropriate position when the driver operates the gearshift lever. It is responsible for actually shifting the gears within the transmission, allowing the driver to select the desired gear ratio.
Gear Synchronizer
The gear synchronizer is a mechanism in a manual transmission that helps to ensure a smooth gear change by temporarily matching the rotational speeds of the engaged gears. This helps to prevent grinding or clashing of the gear teeth, improving the overall shift quality and prolonging the life of the transmission components.
Gear Tooth
The gear teeth are the individual, projecting features on the outer circumference of a gear that mesh with the teeth of another gear. This meshing of gear teeth is what allows the transmission of rotational motion and power from one gear to another, enabling the operation of the transmission and other gear-driven automotive components.
Gear Train
The gear train is the collection of gears, shafts, and other components within a transmission or differential that work together to transfer the power from the engine to the vehicle’s wheels. It is responsible for providing the appropriate gear ratios to match the driving conditions and optimize the vehicle’s performance.
Gear Wear Indicator
A gear wear indicator is a device that monitors the condition of the gears in a transmission or differential and provides a warning when the gears have experienced significant wear and need to be replaced. This can be a visual check, such as a wear mark on the gear teeth, or an electronic sensor that feeds information to the vehicle’s computer.
Gearbox
Also known as a transmission, the gearbox is responsible for transferring power from the engine to the wheels, allowing the car to achieve different speeds and levels of acceleration. It contains a series of gears that can be shifted to adjust the gear ratio.
Gearshift Boot
The gearshift boot is a flexible, often leather or rubber, cover that fits around the base of the gearshift lever. It helps to prevent dirt, dust, and other debris from entering the vehicle’s interior through the opening in the center console.
Gearshift Knob
The gearshift knob is the part of the gearshift lever that the driver grabs to shift gears. It is often made of materials like leather, metal, or plastic, and can be customized or replaced for aesthetic or ergonomic reasons.
Gearshift Lever
The gearshift lever is the primary control for changing gears in a manual transmission vehicle. It is connected to the gearbox and allows the driver to select the appropriate gear based on the driving conditions and desired speed.
Gearshift Linkage
The gearshift linkage is the mechanical assembly that translates the movement of the gearshift lever into the appropriate gear selection in the transmission. It ensures that the driver’s input is accurately transmitted to the gearbox, allowing for smooth and precise gear changes.
Gearshift Selector
Also known as the gear selector or shift lever, the gearshift selector is the control used to choose the gear in an automatic transmission vehicle. It is typically located on the center console or the steering column and allows the driver to select park, reverse, neutral, and the various forward gears.
Generator
Also known as an ‘alternator’, this is the component that generates the electrical current to charge the battery and power the vehicle’s electrical systems while the engine is running.
Gimbals
Gimbals are the mechanisms that connect the steering wheel to the steering column, allowing the wheel to move in multiple directions for improved ergonomics and control.
Glove Box
The glove box is a lockable storage compartment located on the dashboard of a car, usually on the passenger side. It is used to store various small items, such as owner’s manuals, vehicle documents, or other personal belongings, keeping them organized and easily accessible to the driver or front passenger.
Glove Box Latch
The glove box latch is the mechanism that holds the glove box door closed and allows it to be opened when needed. This can include a simple latch, lock, or release button that is accessible from the front
Glow Plug
Glow plugs are essential components in diesel engines, as they help to heat the air in the cylinders before the engine is started. This makes it easier to start the engine, especially in cold temperatures, by improving the combustion of the fuel-air mixture.
Glow Plug Controller
The electronic control module that regulates the voltage and duration of the glow plug operation to ensure reliable cold-weather starting of a diesel engine.
Grab Handle
Grab handles, also known as assist handles or grab straps, are sturdy, often padded, handles or straps that are installed in various locations within a car, such as near the doors or above the seats. They provide additional support and stability for passengers, making it easier for them to enter and exit the vehicle.
Grease Fittings
Grease fittings, also called zerk fittings, are small, threaded connectors that are installed on various automotive components, such as ball joints, wheel bearings, or universal joints. They allow specialized grease to be injected into these components, helping to lubricate them and extend their service life.
Grille
The grille is the opening at the front of a vehicle that allows air to flow into the engine compartment, which is essential for cooling the engine and other components. It is often covered with a decorative mesh or slats and can be an important part of a car’s overall design.
Grommet
Automotive grommets are small, ring-shaped rubber or plastic pieces that are used to line the holes in a car’s body or frame, preventing damage to the wires, cables, or hoses that run through them.
Grommet Seal
A grommet seal is a rubber or plastic ring-shaped seal that is used to create a tight, protective barrier around wiring harnesses, hoses, or other components as they pass through holes or openings in automotive parts. The seal helps to prevent leaks, the ingress of dirt, moisture, or other contaminants, and can also provide some vibration damping.
Grommets
Grommets are small, ring-shaped parts that are used to line the edges of holes or openings in automotive components. They help to prevent abrasion, wear, and the ingress of dirt, water, or other contaminants, thereby protecting the wires, cables, or hoses that pass through the opening.
Ground Clearance
The minimum distance between the vehicle’s underside and the road surface. Proper ground clearance is essential for off-road driving and to avoid scraping on speed bumps or steep driveways.
Ground Strap
A ground strap, also known as a ground cable or ground wire, is an electrical connection that provides a low-resistance path for current to flow back to the vehicle’s ground or chassis. This ensures proper grounding and helps to prevent electrical issues, such as voltage fluctuations or static buildup, in the car’s electrical system.
Ground Strap Connection
The ground strap connection is the specific point where the ground strap, or ground cable, is physically attached to the vehicle’s chassis or other grounding location. This connection point ensures a secure and low-resistance path for electrical current to flow back to the ground, maintaining the proper functioning of the vehicle’s electrical system.
Guarantee
A guarantee, also known as a warranty, is a promise made by the manufacturer or seller of a car part or component to repair or replace it if it fails within a certain period of time or under specific conditions. Guarantees help to provide peace of mind and assurance to the customer.
Guard
Automotive guards are protective devices that are installed on a vehicle to shield certain parts from damage, wear, or contamination. Examples include skid plates, which protect the underside of the vehicle, and wheel well liners, which help to keep dirt and debris away from the wheel well area.
Guidance System
A guidance system in a car is a type of ADAS that uses various sensors, cameras, and software algorithms to help guide the vehicle and assist the driver. This can include features like lane-keeping assist, adaptive cruise control, and autonomous emergency braking, which can improve safety and driving performance.
Guide Bushings
Guide bushings are small, cylindrical sleeves that are used in automotive applications to help align and guide the movement of various components, such as pistons or valves. They ensure smooth, controlled motion and help to prevent wear or damage to the components.
Guide Pins
Guide pins are small, cylindrical metal parts that are used to help align and secure components during the assembly or disassembly of automotive parts. They ensure that the components are properly positioned and prevent misalignment, which can cause damage or improper functioning.
Guillotine Valve
The guillotine valve is an older type of throttle valve used in some car engines to regulate the flow of air into the engine. It works by a sliding plate that opens and closes to control the amount of air entering the engine, similar to the action of a guillotine. This design was commonly used in earlier automotive engine designs.
Gunwhale
The gunwhale is the uppermost edge or lip of a car’s fender or wheel well. It is designed to provide additional protection for the vehicle’s body, helping to prevent damage from debris, rocks, or other objects that could impact the vehicle’s sides or wheel areas.
Gurney Flap
An aerodynamic device used on high-performance vehicles to increase rear downforce, improving stability and handling at high speeds. Requires periodic inspection and adjustment.
Gusset
A gusset is a triangular-shaped reinforcing plate or brace that is used to strengthen the connection between two or more automotive components. Gussets help to distribute stress and prevent fatigue or failure at critical joints, improving the overall structural integrity of the vehicle.
Gyroscope
An electronic device that uses the principles of gyroscopic stabilization to detect and measure the angle and rotation of a vehicle, providing data for advanced driver assistance systems.

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