Engine
Complete power assembly that converts fuel or electrical energy into the force used to move a vehicle.
Parts by vehicle system
Engine & Drivetrain Parts
Power-producing assemblies, internal engine components, transmissions, axles, and driveline hardware.
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Parts in this category
Common engine & drivetrain requests.
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Transmission
Gearbox that manages engine power and gear ratios before sending torque into the driveline.
Transfer Case
Driveline unit that distributes transmission power to front and rear axles in many four-wheel-drive vehicles.
Differential
Geared assembly that lets driven wheels rotate at different speeds while continuing to receive power.
Axle Assembly
Complete front or rear axle unit that may include the housing, differential, shafts, hubs, and mounts.
Driveshaft
Rotating shaft that transfers torque between the transmission or transfer case and an axle differential.
Axle Shaft
Shaft that carries torque from the differential to a driven wheel.
CV Axle
Drive axle with constant-velocity joints that allows power transfer while steering and suspension move.
Torque Converter
Fluid coupling used with many automatic transmissions to transfer and multiply engine torque.
Flywheel
Heavy rotating disc that smooths engine operation and connects many manual transmissions.
Flexplate
Thin engine-to-torque-converter plate used with many automatic transmissions.
Engine Block
Main engine casting that houses the cylinders, crankshaft, and internal oil and coolant passages.
Cylinder Head
Upper engine casting containing combustion chambers, valves, and valvetrain passages.
Camshaft
Rotating valvetrain shaft that controls when engine valves open and close.
Crankshaft
Engine shaft that converts piston movement into rotating output power.
Connecting Rod
Internal engine link connecting a piston to the crankshaft.
Oil Pan
Lower engine reservoir that holds lubricating oil beneath the crankcase.
Valve Cover
Top engine cover that seals the cylinder head and valvetrain area.
Timing Cover
Front engine cover that protects the timing chain, belt, or gears.
Harmonic Balancer
Crankshaft-mounted damper that reduces engine torsional vibration.
Engine Mount
Insulated bracket that secures the engine while limiting vibration transfer to the body.
Turbocharger
Exhaust-driven compressor that forces additional air into the engine.
Supercharger
Engine-driven compressor that increases the air supplied to the engine.
Belt Tensioner
Spring-loaded pulley assembly that maintains accessory-belt tension.
Idler Pulley
Free-spinning pulley that guides and supports an engine accessory belt.
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