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Autotrayce

Parts Gallery

Browse automotive components by system — from engine internals to interior trim

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Transmission & Driveline

20 parts

View in glossary
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Automatic gearbox

Automatically selects appropriate gears based on speed and load, using hydraulic or electronic control systems.

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Axles

Shafts that connect differential to wheels, transmitting rotational power to drive the vehicle.

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CV boots

Rubber covers that protect CV joints from dirt and retain lubricating grease.

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CV joints

Constant velocity joints that allow driveshafts to flex and articulate while maintaining smooth power transfer.

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Clutch disc

Friction disc that connects engine to transmission in manual cars, allowing smooth engagement and disengagement of power.

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Clutch fork

Actuates the clutch release bearing when the clutch pedal is pressed, disengaging the clutch.

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Differential

Allows wheels on the same axle to rotate at different speeds while cornering, dividing engine torque between them.

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Differential mount

Secures differential to chassis while isolating vibration and managing drivetrain loads.

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Driveshaft / prop shaft

Transfers rotational power from transmission to differential in rear or all-wheel drive vehicles.

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Dual-clutch transmission (DCT)

Uses two separate clutches for odd and even gears, enabling extremely fast gear changes without interrupting power delivery.

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Flywheel / Flexplate

Provides rotational inertia to smooth engine operation and serves as the mounting surface for the clutch or torque converter.

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Gear selector/shift linkage

Mechanical or electronic connection between gear lever and transmission, translating driver input into gear changes.

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Half shafts

Drive axles in front-wheel or independent rear suspension vehicles, incorporating CV joints for articulation.

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Manual gearbox

Allows driver to manually select gears to match engine speed with road speed, providing direct control over power delivery.

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Pressure plate

Clamps the clutch disc against the flywheel, transmitting engine torque to the transmission.

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Release bearing/throw-out bearing

Pushes against pressure plate fingers to release clutch pressure when pedal is pressed.

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Shift solenoids

Electronically controlled valves in automatic transmissions that direct hydraulic fluid to actuate gear changes.

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Synchro rings

Match gear speeds in manual transmissions, enabling smooth gear engagement without grinding.

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Torque converter

Fluid coupling in automatic transmissions that transfers engine power to transmission while allowing slippage at low speeds.

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Transmission mount

Isolates transmission vibration from chassis while securely positioning the transmission.

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Suspension & Steering

20 parts

View in glossary
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Anti-roll/sway bars

Reduce body roll during cornering by connecting left and right suspension, improving handling stability.

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Ball joints

Flexible pivot points connecting control arms to steering knuckles, allowing steering and suspension movement.

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Bushings

Rubber or polyurethane mounts that cushion suspension component connections, isolating vibration and noise.

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Coil springs

Primary suspension springs that absorb impacts and support vehicle weight while allowing wheel movement.

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Control arms

Connect wheel hub to chassis, controlling wheel position and movement while allowing suspension travel.

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Idler arm

Supports steering linkage on passenger side in older steering systems, maintaining proper geometry.

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Leaf springs

Stacked steel plates that serve as springs, commonly used in trucks and older vehicles for durability and load capacity.

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Mounting brackets

Secure suspension components to chassis, providing attachment points for various suspension parts.

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Pitman arm

Converts rotary motion from steering box to linear motion in recirculating ball steering systems.

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Power steering pump

Provides hydraulic pressure to assist steering effort, making wheel turning easier for the driver.

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Shock absorbers/dampers

Control spring oscillations after impacts, preventing bouncing and maintaining tire contact with road.

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Steering column

Houses steering shaft connecting wheel to rack, often including collapse mechanism for safety.

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Steering damper

Shock absorber for steering system that reduces wheel shimmy and kick-back, particularly in off-road vehicles.

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Steering fluid reservoir

Stores hydraulic fluid for power steering system, often integrated with pump or mounted separately.

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Steering knuckles

Hubs that mount wheels and connect to suspension and steering components, pivoting for steering.

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Steering rack & pinion

Converts rotational steering wheel input into lateral wheel movement through a gear mechanism.

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Struts

Integrated suspension units combining shock absorber and spring mounting in a structural component.

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Subframe

Secondary frame that supports suspension and drivetrain components, isolating them from main chassis.

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Tension/compression straps

Limit suspension travel in compression or extension, preventing damage from over-travel.

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Tie rods

Connect steering rack to steering knuckles, transmitting steering input to wheels and allowing adjustment of wheel alignment.

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Brakes

13 parts

View in glossary
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ABS module

Electronic control unit that prevents wheel lockup during hard braking by modulating brake pressure.

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Brake booster

Uses engine vacuum to amplify brake pedal force, reducing effort needed for effective braking.

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Brake discs/rotors

Rotating metal discs attached to wheels that brake pads clamp onto, dissipating kinetic energy as heat.

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Brake drums

Cylindrical components in drum brake systems that shoes press against from the inside to create braking force.

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Brake fluid reservoir & cap

Stores brake fluid for hydraulic system, allowing level checking and fluid replenishment.

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Brake lines & hoses

Transport brake fluid under pressure from master cylinder to wheel brakes, using rigid lines and flexible hoses.

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Brake pads

Friction material that clamps against brake discs to slow the vehicle, designed for heat resistance and consistent performance.

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Brake pedal

Driver-operated lever that activates the braking system, converting foot pressure into hydraulic force.

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Brake shoes

Curved friction material in drum brakes that expands outward to contact drum and create stopping force.

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Calipers

House brake pistons that squeeze pads against rotors, converting hydraulic pressure into friction.

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Master cylinder

Converts mechanical pedal force into hydraulic pressure distributed to all brake calipers.

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Parking brake components

Mechanical system that holds vehicle stationary when parked, typically acting on rear wheels.

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Wheel speed sensors

Monitor individual wheel rotation speeds, providing data to ABS system to prevent lockup.

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Electrical & Electronics

25 parts

View in glossary
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ABS sensors

Monitor wheel speeds to enable antilock braking system operation.

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Airbag control module

Monitors crash sensors and deploys airbags in milliseconds during a collision.

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Alternator

Generates electricity while engine runs, charging battery and powering electrical systems.

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Battery

Stores electrical energy to start engine and power systems when engine is off, acting as voltage stabilizer.

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Battery terminals & cables

Heavy-duty connections that transmit high current between battery and vehicle electrical system.

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Body control module

Manages various body electrical functions including lighting, locks, and convenience features.

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Brake lights

Bright red lights that illuminate when brakes are applied, warning following drivers.

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Connectors & clips

Join wiring harness components, allowing serviceability while maintaining electrical connections.

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Crank/cam position sensors

Inform ECU of exact engine position for precise ignition and injection timing.

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Engine control unit (ECU)

Primary computer managing engine functions including fuel injection, ignition timing, and emissions systems.

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Fog lights

Low-mounted lights designed to improve visibility in fog, rain, or snow without causing glare.

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Fuse box

Central distribution point for electrical circuits with protective fuses for each circuit.

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Fuses & relays

Protective devices that prevent electrical overload and switches that control high-current circuits.

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Ground straps

Provide return path for electrical current to battery negative terminal.

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Headlights

Primary forward lighting using halogen, xenon, or LED technology for night driving visibility.

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Indicator/turn lights

Amber flashing lights that signal intended direction changes to other road users.

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Interior dome lights

Cabin lighting for passenger convenience, typically activating when doors open.

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License plate lights

Illuminate rear number plate for legal visibility requirements and law enforcement identification.

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MAP/MAF sensors

Measure air pressure or mass flow for ECU to calculate proper fuel delivery.

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Starter motor

Electric motor that cranks engine to begin combustion process, drawing high current from battery.

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Tail lights

Red rear lights that make vehicle visible from behind, particularly important in low visibility.

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Temperature sensors

Monitor coolant, intake air, and other temperatures for proper engine management.

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Transmission control unit (TCU)

Computer that manages automatic transmission gear changes based on various sensor inputs.

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Voltage regulator

Controls alternator output to maintain proper charging voltage, protecting electrical components.

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Wiring harnesses

Organized bundles of wires connecting all electrical components throughout the vehicle.

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Cooling & HVAC

18 parts

View in glossary
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AC compressor

Pressurizes refrigerant gas, enabling heat transfer that cools cabin air.

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Blower motor

Fan that circulates heated or cooled air through cabin ventilation system.

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Cabin air filter

Removes dust, pollen, and pollutants from air entering cabin ventilation system.

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Condenser

Radiator-like component that cools and condenses refrigerant gas into liquid.

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Coolant hoses

Transport coolant between engine, radiator, and heater core, designed to withstand high temperatures and pressure.

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Cooling fan(s)

Draw or push air through radiator when vehicle speed is insufficient for natural airflow cooling.

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Evaporator

Inside cabin component where refrigerant evaporates, absorbing heat and cooling air.

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Expansion tank

Reservoir that accommodates coolant expansion and contraction with temperature changes.

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Expansion valve

Regulates refrigerant flow into evaporator, controlling cooling capacity.

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Fan shroud

Directs fan airflow through radiator efficiently, preventing air recirculation.

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HVAC controls

Dashboard interface allowing temperature, fan speed, and air distribution adjustment.

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Heater core

Small radiator inside cabin that uses hot coolant to provide heating for passengers.

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Radiator

Heat exchanger that dissipates engine heat into atmosphere via airflow and coolant circulation.

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Radiator cap

Pressurizes cooling system to raise coolant boiling point while acting as pressure relief valve.

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Receiver-drier / accumulator

Filters and stores refrigerant while removing moisture from AC system.

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Temperature blend doors

Adjustable flaps that mix hot and cold air to achieve desired cabin temperature.

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Thermostat

Valve that regulates coolant flow to maintain optimal engine operating temperature.

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Water pump

Circulates coolant through engine block, cylinder head, and radiator to maintain proper temperature.

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Body & Exterior

19 parts

View in glossary
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Badges

Manufacturer and model identification emblems, contributing to vehicle branding.

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Bonnet/hood

Hinged panel providing access to engine compartment while forming front body shape.

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Door handles

External and internal mechanisms for opening doors, increasingly incorporating keyless entry.

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Door mirrors

External mirrors providing side and rear visibility, often with adjustment and heating features.

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Doors

Hinged panels providing cabin access, incorporating safety structures, windows, and trim.

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Front/rear bumper

Protective structures designed to absorb low-speed impacts and house sensors, lights, and grilles.

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Grilles

Front openings allowing airflow to radiator while defining vehicle's visual identity.

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Lock actuators

Electric motors that engage and release door locks, controlled by key fob or switches.

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Paint Protection Film (PPF)

Paint protection film being applied Paint protection film (PPF, also called clear bra, clear film or clear paint film) is a thermoplastic urethane and often self-healing film applied to painted surfaces of a new or used car in order to protect the paint from stone chips, bug splatters, and minor abrasions. This film is also used on airplanes, RVs, cell phones, electronics, screens, motorcycles, and many other areas. Paint protection film is OEM approved by virtually all car manufacturers.

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Rear window

Glass panel providing rearward visibility, often including defrost elements.

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Rearview mirror

Interior mirror providing central rear visibility, may include auto-dimming features.

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Roof

Upper body panel providing weather protection and contributing to structural rigidity.

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Seals

Various rubber components preventing water, dust, and air leakage throughout body.

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Side windows

Tempered glass panels in doors and body pillars for visibility and ventilation.

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Trunk/tailgate

Rear access panel to cargo area, often incorporating lighting and latch mechanisms.

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Weatherstrips

Rubber seals around doors and windows preventing water and air infiltration.

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Window regulators

Mechanisms that raise and lower door windows, either manual or electric.

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Windshield

Laminated glass front window providing visibility while contributing to structural strength.

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Wings/fenders

Body panels covering wheel arches, protecting from road debris and completing body shape.

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Interior

19 parts

View in glossary
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Airbag modules

Inflatable cushions throughout cabin that deploy in crashes to protect occupants.

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Carpets

Floor coverings providing sound insulation and finished appearance.

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Console

Central cabin structure housing storage, controls, and cup holders.

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Door panels

Trim covering door interiors, housing controls and speakers.

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Driver/passenger seats

Adjustable seating providing comfort and support, increasingly featuring multiple adjustment motors and heating.

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Gear shifter

Lever or electronic interface for selecting transmission gears.

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HVAC controls

Dashboard interfaces for adjusting cabin temperature and air distribution.

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Headrests

Adjustable head supports reducing whiplash injury risk in rear impacts.

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Instrument cluster

Dashboard display showing speed, engine RPM, fuel level, and warning indicators.

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Interior lights

Various cabin lighting including dome, map, and ambient lighting systems.

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Parking brake lever

Manual or electronic control engaging parking brake system.

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Pedals

Floor-mounted controls for accelerator, brake, and clutch (in manual transmissions).

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Roof lining

Fabric covering interior roof, providing finished appearance and sound insulation.

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Seat belts & buckles

Restraint system securing occupants during collisions, featuring pretensioners and load limiters.

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Seat tracks

Rails allowing fore-aft seat adjustment for different driver sizes.

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Speedometer/Tachometer

Gauges displaying vehicle speed and engine rotation speed for driver monitoring.

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Steering wheel

Driver's primary control interface, increasingly housing controls for various vehicle functions.

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Sun visors

Hinged panels blocking sun glare from windshield and side windows.

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Touchscreen infotainment

Central display controlling entertainment, navigation, and vehicle settings.

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Safety & Miscellaneous

14 parts

View in glossary
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ABS (antilock brakes)

System preventing wheel lockup during hard braking, maintaining steering control.

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Airbags (front/side/curtain)

Multiple inflatable restraints throughout cabin protecting occupants in various collision types.

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Bolts, nuts, screws, clips

Various fastening hardware holding vehicle components together with specific torque requirements.

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Brake fluid

Hydraulic fluid transmitting brake pedal force to calipers, requiring specific boiling point characteristics.

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Coolant/antifreeze

Liquid mixture circulating through cooling system, preventing freezing and corrosion while managing temperature.

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Crash sensors

Accelerometers detecting impacts to trigger airbag deployment and safety responses.

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Engine oil

Lubricating fluid reducing friction between moving engine parts, also providing cooling and cleaning.

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Fuel

Combustible liquid (petrol, diesel, or alternative) providing energy for engine operation.

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Gaskets & seals

Sealing components preventing fluid and gas leaks between mating surfaces throughout vehicle.

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Power steering fluid

Hydraulic fluid enabling power-assisted steering, reducing effort needed to turn wheels.

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Rubber mounts

Flexible mounting components isolating vibration and noise from various vehicle systems.

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Stability control

Computerized system preventing loss of control by selectively braking wheels and reducing power.

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Traction control

System preventing wheel spin during acceleration by reducing power or applying brakes.

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Transmission fluid

Specialized lubricant and hydraulic medium for transmission operation, cooling, and protection.

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