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Automotive glossary

Part Number

A part number uniquely identifies a specific part.

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What is Part Number?

Manufacturers use their own numbering. Supersessions replace old numbers. Catalogues cross-reference numbers. Engine and gearbox codes, paint codes and production dates can all affect which part number is correct. Old numbers are often replaced by updated versions, so a different number does not always mean a wrong part. Online catalogues and dealers can search by VIN to find the correct number.

How it works

The number links to exact specifications.

Why it matters for your car

Use the VIN for correct identification. Similar-looking parts can differ.

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