: Look for a white placard with a "TR" code that identifies the transmission system.
The identification tag is typically located on the right (passenger side), just rear of the power take-off (PTO) cover. Three key pieces of information appear on the tag: the model number, the date of manufacture number, and the serial number.
Allison Transmission has utilized a few different serial number formats over its decades of manufacturing. Understanding the structure helps you verify that you have captured the sequence correctly. Modern 10-Digit Numeric Sequences
The most reliable way to find the serial number is by locating the physical . Allison Transmission Serial Number Lookup
If you have access to software (dealers/repair shops):
Indicates the ratio coverage (0–3 for close ratio, 4–6 for wide ratio).
The Ultimate Guide to Allison Transmission Serial Number Lookup : Look for a white placard with a
inside the operator's cab/cowl or in the vehicle's original order paperwork. Identifying the Number : An Allison serial number is typically a 10-digit number listed directly under the model number on the data plate. Serial Number Prefixes by Series
Here’s exactly how to perform an Allison Transmission serial number lookup and what you can learn from it.
Use the Allison Warranty Status Check tool to verify coverage and see if any extended coverage (EC) is registered for that specific serial number. Allison Transmission has utilized a few different serial
If you do not have a MyAllison account, any authorized Allison distributor or dealer can run the serial number through their internal system. They can instantly print a "Build Sheet" that lists every internal component group installed in your transmission on the day it left the factory. Summary Checklist for Fleet Maintenance
A 10-digit number usually starting with 24 , 63 , or 65 (e.g., 2410XXXXXX ). Older models may use a 9-digit format.
