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:
Cylinder
Oil Pan
Gearbox
Pitman Arm
Rear Axle Ratio
Clutch Pedal
Steering Knuckle
Boots

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