How-To

How to Find Your Car OEM Part Number

The trick that saves $100-300 on every repair

Every part has an OEM number. Search it on RockAuto and you find the exact same part the dealer orders — for 40-70% less.

1
Call your dealer parts department
Easiest method

Say: I need the OEM part number for [part] on my [year/make/model]. They will tell you — it costs them nothing.

2
Look at the old part itself
Most reliable

The OEM number is stamped or printed on most parts. Check the housing, casing, or any sticker on the part.

3
Use a free VIN decoder
Works at home

RockAuto and eBay Motors have VIN decoders. Enter your VIN for parts specific to your exact vehicle.

4
Google it
Free and fast

Search [year] [make] [model] [engine] [part] OEM part number. Usually on forums or owner groups.

Search by part name or OEM number on PartSavr

Search now