Allison Transmission Serial Number Lookup «EASY»

The serial number is stamped on a metal data plate (ID tag) affixed to the transmission housing. Depending on the generation and model of your transmission, the tag color and location will vary. Common Tag Colors

To minimize downtime, keep a digital log of your fleet's transmission data. Fill out this quick template for every vehicle in your garage: _______________ Vehicle VIN: _______________ Allison Model: _______________ Transmission S/N (10 digits): _______________ Assembly Number (A/N): _______________

The specific family and configuration (e.g., 3000 RDS, 4500 SP, 1000 MH). Allison Transmission Serial Number Lookup

Use the Allison Warranty Status Check tool to verify coverage and see if any extended coverage (EC) is registered for that specific serial number.

The most reliable way to find the serial number is by locating the transmission data plate (nameplate) attached to the unit's housing. The serial number is stamped on a metal

: It is typically found on the side of the transmission, often on the lower rear face or the passenger side. Alternative Locations

Once you have documented your 10-digit serial number, follow these steps to use the official Allison system: Fill out this quick template for every vehicle

Historically, Allison Transmission serial numbers followed a strict format that allowed manual decoding of the manufacturing date and plant. Modern 10-Digit Serial Numbers

On older models, check the driver's side or the top rear flange near the output shaft.