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.


Oil Pump

A pump located inside the engine that circulates oil from the oil pan to the moving parts of the engine. These rarely fail, and if they do, usually means your engine is toast. Clean, fresh oil makes for a happy oil pump.

See Also:
Oil Filter
Gear Grease

Diagnose Your Car's Problem

Engine won't start? Weird sound? Strange smoke? Got something going on with your car but not sure what it is? The easy to use DriverSide Diagnostic Tool is here to help you figure it out.

Enter Zip: