There are 74 car parts that start with the letter M. From Magnetic Clutch to Multifunction Switch. 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 M

Car parts function maintenance interval (months) replacement cost (USD)
Magnetic Clutch Engages and disengages the air conditioning compressor 12 150
Magnetic Oil Drain Plug Collects metal particles in the engine oil 12 10
Magneto Provides ignition power to the spark plugs in the engine 12 300
Main Bearing Supports the crankshaft in the engine block 48 150
Manifold Absolute Pressure (MAP) Sensor Measures the pressure in the intake manifold to determine engine load 12 100
Manifold Gasket Seals the connection between the intake manifold and cylinder head 24 20
Manual Transmission Fluid Lubricates the gears and bearings in a manual transmission 24 30
Manual Transmission Synchronizer Matches the speed of the input shaft to the output shaft for smooth gear changes 48 100
Mass Air Flow (MAF) Sensor Measures the amount of air flowing into the engine to determine fuel delivery 12 150
Mass Air Flow Sensor Measures the amount of air entering the engine 12 50-200
Master Cylinder Converts brake pedal motion into hydraulic pressure to actuate the brake calipers 24 100
Master Relay Provides power to various electrical systems in the vehicle 12 50
Mating Flange Connects two components or assemblies 12 30
Memory Module Stores settings for features like seat position, mirror positions, and radio presets 60 100-300
Memory Seat Stores and recalls preferred seat position settings 12 200
Metallic Brake Pads Brake pads made of metal alloys for increased durability 12 50
Microprocessor The ‘brain’ of the vehicle’s electronic control systems N/A N/A
Mirror, Exterior Provides rearward visibility for the driver 36 50-200
Mirror, Interior Provides rearward visibility for the driver and passengers 36 20-100
Moisture Separator Removes water from the fuel system to prevent engine damage 12 75
Molding Decorative trim that covers gaps and edges on the vehicle’s exterior 36 50
Momentum Valve Controls the air/fuel mixture during engine braking 24 50
Monocoque The structural frame of a vehicle, integrating the body and chassis N/A N/A
Moonroof A sliding glass panel in the vehicle’s roof 36 500
Motion Sensor Detects movement to activate security or convenience features 12 75
Motor Mount Securely holds the engine in place within the vehicle 48 100
Motorcycle Boots Protective footwear for motorcycle riders N/A 100
Motorcycle Brake Light Activates when the rider applies the brakes N/A 20
Motorcycle Brakes Slow and stop the vehicle N/A 200
Motorcycle Clutch Engages and disengages the transmission N/A 100
Motorcycle Driveshaft Transfers power from the transmission to the rear wheel N/A 500
Motorcycle Engine Provides the motive power for the vehicle N/A 2000
Motorcycle Fairings Improve aerodynamics and protect the rider N/A 500
Motorcycle Fenders Protect the rider from mud and debris N/A 100
Motorcycle Frame Provides the structural foundation of the vehicle N/A N/A
Motorcycle Fuel Gauge Indicates the amount of fuel remaining in the tank N/A 50
Motorcycle Gloves Protective handwear for motorcycle riders N/A 50
Motorcycle Goggles Eye protection for motorcycle riders N/A 30
Motorcycle Handlebar Provides steering and control of the motorcycle N/A 100
Motorcycle Headlight Illuminates the road ahead for the rider N/A 75
Motorcycle Helmet Protective headgear for motorcycle riders N/A 100
Motorcycle Horn Provides an audible warning to other drivers N/A 20
Motorcycle Intercom Allows communication between riders N/A 150
Motorcycle Jacket Protective outerwear for motorcycle riders N/A 150
Motorcycle Kickstand Supports the motorcycle when parked N/A 15
Motorcycle Mirrors Provide rearward visibility for the rider N/A 50
Motorcycle Odometer Tracks the total distance traveled by the vehicle N/A N/A
Motorcycle Saddlebag Provides storage space for personal items on a motorcycle N/A 50
Motorcycle Saddlebag Mounts Provide a mounting point for saddlebags N/A 100
Motorcycle Sidestand Supports the motorcycle when parked N/A 20
Motorcycle Speedometer Displays the vehicle’s speed N/A 75
Motorcycle Suspension Absorbs bumps and impacts N/A 500
Motorcycle Swingarm Supports the rear wheel and suspension N/A 300
Motorcycle Tachometer Displays the engine’s revolutions per minute N/A 50
Motorcycle Tail Light Indicates the motorcycle’s presence to following vehicles N/A 30
Motorcycle Tank Bag Provides storage space on the fuel tank N/A 75
Motorcycle Throttle Controls the engine’s power output N/A N/A
Motorcycle Transmission Transfers power from the engine to the wheels N/A 1000
Motorcycle Turn Signals Indicate the rider’s intended direction of travel N/A 30
Motorcycle Wheels Support the weight of the vehicle and rider N/A 500
Motorcycle Windshield Deflects wind and weather away from the rider N/A 150
Motorized Throttle Body Electronically controls the airflow into the engine 24 300
Mounting Bolt Secures a component to the vehicle’s structure 12 5
Mounting Bracket Secures a component to the vehicle’s structure 12 25
Mud Flap Prevents mud, debris, and water from being thrown up by the tires 12 20
Mud Flap Hanger Mounts the mudflaps to the vehicle’s body or fenders 12 20
Mud Flap Hinge Allows the mudflaps to flex and move with the wheels 12 15
Mudflap Bracket Mounts the mudflaps to the vehicle’s body or fenders 12 20
Mudflaps Prevent mud, debris, and water from being thrown up by the tires 12 20
Mudguard Protects the underside of a vehicle from mud and debris 24 30
Muffler Reduces the noise level of the engine exhaust 36 150
Muffler Clamp Secures the muffler to the exhaust system 12 5-20
Muffler Delete Removes the muffler for a louder exhaust sound N/A 100
Multifunction Switch Controls various vehicle functions such as turn signals, headlights, and windshield wipers 12 75

Descriptions

Magnetic Clutch
An electromagnetic clutch that connects and disconnects the air conditioning compressor from the engine, allowing the compressor to operate only when the air conditioning system is in use to improve fuel efficiency.
Magnetic Oil Drain Plug
A drain plug with a built-in magnet that attracts and traps small metal shavings and particles in the engine oil, preventing them from circulating and causing wear on critical engine components.
Magneto
A complex electro-mechanical device that generates a timed, high-voltage electrical current to fire the spark plugs in an internal combustion engine.
Main Bearing
A metal bearing that allows the crankshaft to rotate smoothly and with minimal friction within the engine block, transferring power from the pistons to the transmission.
Manifold Absolute Pressure (MAP) Sensor
An electronic sensor that measures the pressure in the intake manifold of an engine, providing data to the engine control unit to optimize fuel delivery and ignition timing.
Manifold Gasket
A thin, specialized gasket that creates a tight seal between the intake manifold and the cylinder head, preventing air and coolant leaks that could disrupt engine performance.
Manual Transmission Fluid
A specialized oil formulated to reduce friction and wear within the gears, bearings, and synchronizers of a manual transmission, ensuring smooth and efficient power transfer from the engine to the wheels.
Manual Transmission Synchronizer
A set of cone-shaped friction clutches within a manual transmission that temporarily lock the input and output shafts together, allowing the driver to smoothly engage the next gear without grinding the gears.
Mass Air Flow (MAF) Sensor
An electronic sensor that measures the mass of air flowing into the engine, providing data to the engine control unit to precisely regulate the air/fuel mixture for optimal performance and efficiency.
Mass Air Flow Sensor
Crucial for engine management system to properly adjust fuel delivery for optimal performance and efficiency
Master Cylinder
The primary component of the brake system, it uses brake fluid to transmit force from the brake pedal to the wheel brake calipers, slowing or stopping the vehicle.
Master Relay
An electromechanical switch that controls the flow of electrical current to various circuits and components, ensuring proper operation of essential vehicle systems.
Mating Flange
A flat surface on the end of a vehicle component, such as a driveshaft or axle, that mates with a corresponding surface on another part, allowing the two to be securely joined together.
Memory Module
The memory module is an electronic control unit that saves the user’s preferred settings for various vehicle features, allowing those settings to be easily recalled and applied when the user enters the vehicle.
Memory Seat
An electrically-operated seat system that can memorize and automatically return the driver’s seat to pre-set positions for comfort and convenience, especially useful for vehicles with multiple drivers.
Metallic Brake Pads
Brake pads composed of metal alloys, such as copper, steel, or ceramic, that offer improved heat resistance, wear resistance, and braking performance compared to traditional organic brake pads.
Microprocessor
A miniaturized electronic circuit that serves as the central processing unit for a vehicle’s various computerized control modules, managing engine, transmission, safety, and comfort systems.
Mirror, Exterior
Commonly power-adjustable and often heated for improved visibility in inclement weather
Mirror, Interior
Typically an auto-dimming feature to reduce glare from headlights behind the vehicle
Moisture Separator
A device in the fuel system that separates and traps any water that may have accumulated in the fuel, protecting the fuel pump, injectors, and other components from corrosion and malfunction.
Molding
Strips of plastic, rubber, or metal that are installed along the edges and joints of the vehicle’s body panels, providing a finished appearance and protecting against the elements.
Momentum Valve
A specialized valve in the intake system that regulates airflow to the engine during deceleration, preventing the engine from drawing excessive air and causing an overly lean air/fuel mixture that could damage the catalytic converter.
Monocoque
A type of vehicle construction where the body shell is an integral part of the chassis, providing both structure and styling, resulting in a lighter and more rigid design.
Moonroof
An opening in the roof of a vehicle covered by a glass or panel that can tilt or slide to allow natural light and ventilation into the cabin, providing an open-air driving experience.
Motion Sensor
An electronic sensor that recognizes motion around the vehicle, triggering security alarms, lighting, or other functions to deter theft or provide added convenience for the owner.
Motor Mount
A rubber or metal component that attaches the vehicle’s engine to the chassis, absorbing vibrations and preventing the engine from shifting or moving during operation.
Motorcycle Boots
Rugged boots designed for motorcycle riders to shield the ankles and feet from road debris, weather, and impact forces in the event of a crash or fall.
Motorcycle Brake Light
The illuminated light on the rear of a motorcycle that turns on when the rider applies the brakes, alerting following vehicles that the motorcycle is slowing down or stopping.
Motorcycle Brakes
The system of brake calipers, discs, and pads on a motorcycle that the rider actuates to decelerate and stop the vehicle, using both the front and rear wheels for effective braking.
Motorcycle Clutch
The lever on the left handlebar of a motorcycle that the rider operates to temporarily disengage the engine from the transmission, allowing for smooth gear changes and starts from a stop.
Motorcycle Driveshaft
The rotating shaft that connects the motorcycle’s transmission to the rear wheel, transmitting the engine’s power to the pavement for propulsion.
Motorcycle Engine
The internal combustion or electric motor that converts the energy stored in fuel or batteries into mechanical power, which is then transmitted through the drivetrain to propel the motorcycle forward.
Motorcycle Fairings
Streamlined plastic or composite body panels on a motorcycle that reduce wind resistance, improving fuel efficiency and top speed, while also shielding the rider from the elements.
Motorcycle Fenders
The curved, protective panels installed over the wheels of a motorcycle that shield the rider and bike from road contaminants, such as mud, water, and stones, thrown up by the tires.
Motorcycle Frame
The main backbone of a motorcycle, consisting of a network of metal tubes and components that support the engine, suspension, and rider, giving the motorcycle its overall shape and rigidity.
Motorcycle Fuel Gauge
A gauge on a motorcycle that displays the current level of fuel in the fuel tank, allowing the rider to monitor fuel consumption and plan refueling stops accordingly.
Motorcycle Gloves
Specialized gloves worn by motorcycle riders to shield the hands from wind, weather, and potential impacts, providing dexterity and grip while riding.
Motorcycle Goggles
Shatter-resistant eyewear worn by motorcycle riders to shield the eyes from wind, bugs, and other airborne hazards encountered during riding.
Motorcycle Handlebar
The pivoting handlebars on a motorcycle that the rider uses to steer the vehicle, as well as to actuate the throttle, brakes, and other controls.
Motorcycle Headlight
The primary forward-facing light on a motorcycle that provides illumination for the rider to see the road and be seen by other vehicles during nighttime or low-visibility conditions.
Motorcycle Helmet
A rigid, impact-resistant helmet designed to shield a motorcycle rider’s head in the event of a crash, reducing the risk of serious injury.
Motorcycle Horn
A loud, electric horn installed on a motorcycle that the rider can activate to alert other motorists to their presence, especially in situations where visibility or attention may be limited.
Motorcycle Intercom
A wireless communication system installed on a motorcycle that enables riders to talk to each other, as well as listen to music or navigation instructions, while riding.
Motorcycle Jacket
A sturdy, reinforced jacket worn by motorcycle riders to safeguard the torso and limbs from abrasions and impacts in the event of a collision or fall.
Motorcycle Kickstand
A metal leg that folds out from the motorcycle’s frame, enabling the bike to be stood upright when not in use.
Motorcycle Mirrors
Side-mounted mirrors on a motorcycle that allow the rider to see the area behind the vehicle, enabling safer lane changes and maneuvers.
Motorcycle Odometer
An instrument on a motorcycle that records the total accumulated mileage the vehicle has traveled, providing information about maintenance intervals and overall usage.
Motorcycle Saddlebag
A pair of rigid or soft-sided containers mounted on the sides of a motorcycle, allowing the rider to carry additional gear, supplies, or personal belongings while riding.
Motorcycle Saddlebag Mounts
Specialized brackets or racks installed on the rear of a motorcycle that allow the rider to securely attach saddlebags or other storage containers to the vehicle.
Motorcycle Sidestand
A metal leg that extends from the motorcycle’s frame, allowing the bike to be parked upright when not in use.
Motorcycle Speedometer
A gauge on a motorcycle that measures and displays the vehicle’s speed, typically in miles per hour or kilometers per hour, to inform the rider of their current velocity.
Motorcycle Suspension
The system of springs, dampers, and linkages that cushions the rider and motorcycle from the forces of the road, providing a smooth and stable ride while maintaining control and traction.
Motorcycle Swingarm
The pivoting, forked component that attaches the rear wheel to the motorcycle’s frame, allowing the suspension to compress and rebound while maintaining stability and traction.
Motorcycle Tachometer
An instrument on a motorcycle that indicates the rotational speed of the engine, allowing the rider to monitor and control engine performance.
Motorcycle Tail Light
The rear-facing light on a motorcycle that informs other drivers of the motorcycle’s position and braking status, enhancing visibility and safety.
Motorcycle Tank Bag
A soft-sided or rigid container that attaches to the fuel tank of a motorcycle, offering convenient, easily accessible storage space for small items, maps, or other necessities.
Motorcycle Throttle
The twistable grip on the right handlebar of a motorcycle that the rider uses to control the engine’s throttle, regulating the amount of fuel and air delivered to the engine to adjust the vehicle’s speed.
Motorcycle Transmission
The gearbox on a motorcycle that changes the gear ratio between the engine and the rear wheel, allowing the rider to control the vehicle’s speed and power delivery.
Motorcycle Turn Signals
Flashing lights on the front and rear of a motorcycle that inform other drivers of the rider’s intention to turn or change lanes.
Motorcycle Wheels
The circular rims and tires on a motorcycle that allow the vehicle to roll and provide grip on the road surface, transferring power from the engine to the pavement.
Motorcycle Windshield
A transparent, curved shield installed on the front of a motorcycle that redirects airflow around the rider, providing protection from the wind, rain, and debris encountered during riding.
Motorized Throttle Body
An electronically-actuated device that regulates the amount of air entering the engine, allowing the engine control unit to precisely manage the air/fuel mixture for optimal performance and efficiency.
Mounting Bolt
A threaded fastener used to attach various parts and accessories to the vehicle’s chassis, body, or engine, ensuring they remain firmly in place during operation.
Mounting Bracket
A metal or plastic part that fastens a specific vehicle component, such as a sensor or engine accessory, to the chassis, body, or other structural element of the car or truck.
Mud Flap
A flexible, protective flap made of rubber or plastic that is installed behind the wheels of a vehicle to deflect mud, rocks, and other road contaminants away from the vehicle and surrounding traffic.
Mud Flap Hanger
A metal or plastic bracket that attaches the mudflaps to the vehicle, securely holding them in place to provide effective protection against road debris and mud.
Mud Flap Hinge
A hinged mechanism that connects the mudflaps to the vehicle, enabling the flaps to articulate and move in unison with the turning and suspension movement of the wheels, maintaining effective protection against road debris.
Mudflap Bracket
A metal or plastic component that securely attaches the mudflaps to the vehicle’s frame, wheel wells, or other structural elements, ensuring the mudflaps remain properly positioned.
Mudflaps
Rubber or plastic flaps installed behind the wheels of a vehicle to minimize the amount of dirt, water, and other road debris that is kicked up and thrown at the vehicle behind.
Mudguard
A protective panel or cover installed over the wheels of a vehicle to shield the undercarriage and lower body from being coated in mud, rocks, and other road contaminants.
Muffler
A metal canister in the exhaust system that dampens the sound of the engine’s exhaust gases, making the vehicle quieter and more comfortable for occupants.
Muffler Clamp
Ensures the muffler remains tightly connected to prevent leaks and rattling
Muffler Delete
The process of removing the muffler from a vehicle’s exhaust system, resulting in a more pronounced, high-performance engine sound but potentially higher noise levels.
Multifunction Switch
A complex switch that integrates control of multiple electrical systems, including turn signals, headlights, and windshield wipers, for improved driver convenience and safety.

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