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How to Read an Automotive OEM Part Number

Aug 28

1 min read

The basic number

The core number identifies a component family, but it is rarely enough by itself to guarantee compatibility.

Suffixes and revisions

Letters or additional digits can identify revisions, markets, software versions or vehicle-specific configurations.

Multiple numbers on one component

A module may show an OEM number alongside Bosch, ATE, Continental or supplier references. Record them all.

Supersession evidence

Only use a superseded number when an authoritative source confirms equivalence. Keep the original physical number visible in the listing.

Photographic verification

Use photographs of the actual part label and connectors to support the written identification.

Best practice

Match the complete number first, then confirm vehicle application and physical configuration before buying.

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