How to Find Your Engine Code

The engine code identifies the exact engine in your vehicle. It matters more than the engine size, because one displacement can be built in several versions with different internals, sensors and electronics. Here is where to find it.

1. Your VIN

The VIN is the 17 character code on the driver side of the dashboard, the driver door jamb sticker, and your registration and insurance documents. On many North American vehicles, the 8th character of the VIN identifies the engine, but this is not true for every manufacturer, and the character has to be decoded for that make and year. If in doubt, send us the full VIN and our team will work from it.

2. The engine itself

• A code stamped or cast into the engine block, often near where the engine meets the transmission or on a machined pad
• A label or tag on the timing cover, valve cover or intake
• The emissions label under the hood, which lists engine family information

3. Your paperwork

Service records, the original window sticker or build sheet, and some owner’s manuals list the engine. A dealer service department can also look it up from your VIN.

Engine code vs engine family vs serial number

On cars and light trucks, the engine code identifies the engine model. On heavy-duty diesel engines, suppliers usually also need the engine serial number from the data plate, because configurations vary within one engine family.

Send us what you have

A photo of the VIN plate and a photo of any engine label is often enough. If you are not sure which engine you have, do not guess; send the VIN and we will check it with the supplier before you order.

Need an engine? Send your VIN and engine code for engine sourcing.