Allison Transmission Serial Number Lookup ((exclusive)) -

Ensure you didn't accidentally type the model family (like 3000MH or 4500RDS ) instead of the 10-digit serial string.

The or the general shape of the transmission shift selector

If you cannot find your data tag, or if the online system requires a login you do not have, an authorized dealer can assist you. Provide them with your vehicle's VIN; in many cases, commercial truck dealers can cross-reference the VIN to pull the factory-installed transmission serial number. Allison Transmission Serial Number Lookup

For vehicles on a Freightliner chassis, you can sign up as an owner operator for access to DTNA Connect. By entering the last six digits of your VIN, you can retrieve the serial numbers for both your engine and transmission. Alternatively, calling Freightliner directly at and providing the last six digits of your VIN can get you the serial number of your Allison transmission.

: The data plate is typically a silver or metal tag attached to the side of the transmission housing. Specific Placement : It is most commonly found on the passenger (right) side . Ensure you didn't accidentally type the model family

On many Allison identification tags, a date of manufacture number is also present. This number typically follows a format such as "05J12," which decodes to November 12, 2005. The letter corresponds to the month (A = January, B = February, C = March, D = April, E = May, F = June, G = July, H = August, I = September, J = October, K = November, L = December), and the numbers represent the day and year.

When replacing a unit, matching the serial number ensures that connectors, mounting points, and software calibrations will align correctly with the vehicle's engine. For vehicles on a Freightliner chassis, you can

: Common for 3000 and 4000 product families. Legacy 10-Digit Format