Allison Transmission Serial Number Lookup !!top!!

Once you locate and write down the 10-digit serial number, you can retrieve the build data sheet using official or authorized channels. Step 1: Use the Official Allison HUB

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: Access to official technical specs and build records in one spot. Allison Transmission Serial Number Lookup

You can often determine the general transmission family just by the first few digits of the serial number: 1000/2000 Series : Typically starts with 3000 Series : Often begins with 4000 Series : Generally starts with Older Legacy Models (AT/MT/HT) : Often start with (AT545) or Dartco Transmission Why the Lookup Matters

Allison transmission serial numbers are stamped onto a metal identification tag riveted to the transmission housing. The location of this tag depends on the generation and family of your transmission. Once you locate and write down the 10-digit

Do not confuse the Serial Number with the Model Number. The Model Number tells you the family of the transmission; the Serial Number identifies the individual unit .

Gently clean the plate with a mild degreaser and a nylon brush. Avoid wire brushes, which scratch the stamped text. If the plate is gone, look for a secondary laser-etched matrix code or serial stamp directly on the metal housing surface near the original tag location. If you share with third parties, their policies apply

The plate is usually a metal tag (often blue or silver). The serial number is clearly labeled, often appearing just above or next to the model number. How to Use the Serial Number

The most reliable way to find the serial number is by looking directly at the transmission unit.

: Owners can verify if their unit is still under its original or extended coverage by using the serial number in the Warranty Status tool Parts Catalog