Look on the passenger side or driver side of the main transmission main housing.
By using an Allison transmission serial number lookup tool or contacting an authorized dealer or distributor, you can access valuable information about your transmission and ensure it receives the proper maintenance, repairs, and support it needs to operate efficiently and effectively.
This tool allows you to check the remaining warranty coverage on a transmission based on its serial number. Results shown are for serial numbers registered with Allison or for transmissions with added Extended Transmission Coverage (ETC). You can access it directly here:
The single link to access the platform is:
Before you can perform a lookup, you must locate the number on the transmission itself. Allison serial numbers are typically and consist only of numbers (no letters).
Finding your Allison transmission serial number is the single most important step for accurate parts ordering, fluid capacities, and warranty repairs. Using the official Allison Transmission serial number lookup link ensures you get real-time, accurate manufacturing data directly from the factory database.
: Access technical documentation, troubleshooting guides (ePubs), and fluid/filter interval info. Allison Transmission How to Find Your Serial Number
Free basic accounts are available to fleet owners and operators, while premium access is reserved for service technicians.
