Part identification · 5 min read
How to Identify Automotive Parts Using OE Numbers
What OE numbers are, where to find them, and how to send them in an inquiry so the right part is quoted the first time.
An OE (original equipment) number is the part number the vehicle manufacturer assigned to a component. It is the most reliable way to communicate exactly which part you need, because many parts that look identical differ in mounting points, connector pins or internal calibration.
Where to find the OE number
- On the old part. Stamped, cast or printed on a label. Clean the part before reading it — numbers on control arms and housings are often covered in grime.
- In the manufacturer's parts catalog (EPC). A VIN search returns the correct number for that exact vehicle build.
- On invoices or packaging from a previous purchase of the same part.
Left, right, and paired numbers
Many chassis and lighting parts come in pairs, for example a left and a right control arm with consecutive numbers. List both if you need both sides, and state which side each one fits.
Superseded numbers
Manufacturers sometimes replace a number with a newer one. If your catalog shows a supersession, include both the old and new numbers so the supplier can match either.
What to send in your inquiry
- OE number(s), copied exactly including dashes and letters.
- Vehicle make, model, year and engine or transmission code.
- VIN if available.
- Clear photos of the old part and any labels.
- Quantity per item.
With this information our team can check the matching product and confirm before quoting.