Allison Transmission Serial Number Lookup ((full)) Page

Click "Search" or "Submit" to generate your transmission profile.

This comprehensive guide explains exactly how to locate your serial number, decode the information it contains, and use it to keep your equipment running smoothly. Why You Need Your Allison Serial Number

The specific you are trying to find

The Vehicle Identification Number (VIN) on your dashboard identifies the chassis, not the transmission. While a dealership can sometimes cross-reference a VIN to find factory-installed components, an engine or transmission swap completely voids this link. Always read the number from the transmission case itself. Allison Transmission Serial Number Lookup

To help find the exact specifications or parts for your transmission, tell me: The from your tag (if you have it) The truck or vehicle model it is installed in

Once you have documented your 10-digit serial number, follow these steps to use the official Allison system:

Confirm the exact fluid capacity and type (like TES 295 or TES 668) required for your model. How to Locate Your Allison Serial Number Click "Search" or "Submit" to generate your transmission

: Older, "legacy" models (pre-1998) may have less comprehensive digital records compared to Generation 5/6 models. Expert Consensus Service Tools + Information - Allison Transmission

You cannot just "Google" an Allison serial number and get a build sheet. The data is proprietary, but there are tiers of access.

The serial number format typically looks like: While a dealership can sometimes cross-reference a VIN

The product family is identified by the first two digits of the transmission serial number. This simple decoding method allows you to quickly identify which series of transmission you are dealing with:

The serial number itself is not decoded (no hidden model info), but when looked up in Allison’s system, it returns: