Serial Number Lookup — Allison Transmission
Confirms whether your unit requires TES 295, TES 668, or other specialized fluids.
Located on the driver side (left side) of the oil pan or just above the oil pan rail on the main housing.
The serial number is typically a located on the data plate. Allison Transmission Serial Number Lookup
To perform an Allison Transmission serial number (S/N) lookup, you must first locate the physical data tag on the unit. This 10-digit number is the "key" to identifying the exact build configuration, parts, and warranty history through official Allison tools. 1. Where to Find the Serial Number
When looking to buy a replacement transmission, it is important to locate your transmission serial number so this information can be given to your sales representative. This information is needed before quoting a replacement transmission, as it determines which exact transmission will be a fit for the application. The transmission lead time varies depending on whether your transmission serial number is in stock or if it has to be built and finished to your specifications. Confirms whether your unit requires TES 295, TES
The serial number is usually listed on the bottom left of the plate, directly beneath the model number.
The Allison transmission serial number is a vital piece of information for anyone working with Allison-equipped vehicles. By understanding the importance of the serial number and knowing how to perform a lookup, you can ensure accurate maintenance and repair records, warranty and support compliance, and efficient upgrades and retrofits. Whether you're a seasoned mechanic or a fleet manager, staying on top of Allison transmission serial number lookup is essential for optimal performance, reliability, and longevity of your vehicle and transmission. To perform an Allison Transmission serial number (S/N)
: Users can verify if a unit is still under its original or extended coverage directly through the Warranty Status tool.
Your transmission's serial number is far more than just a random string of numbers. It acts as a unique identifier, granting you access to a wide range of vital data and services [12†L8-L9].