Glossary of Auto Terms

DriverSide's Car Dictionary has the most comprehensive definitions of automotive terms. This auto glossary can help you decipher what your mechanic is fixing and what the purpose or function of the particular auto part or accessory is for. We have taken the mystery out of automotive service jargon, so that you don't have to.

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Piston

About the size of a coffee mug, the piston moves up and down in a cylinder like a fist compressing the air/fuel mixture over and over again to be ignited for power.



See Also:
Axle
Bearings
Rocker Arms
Gearbox
Clutch Disc
Boots
Rings
Lubrication System

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