Allison Transmission Serial Number Lookup ⚡

There are several ways to perform an Allison transmission serial number lookup:

You can verify if your unit is still under factory or extended coverage by entering the S/N into the Warranty Status tool on the HUB. Allison Transmission Serial Number Lookup

On many modern Allison transmissions (like the 1000/2000 series found in Chevy/GMC Duramax trucks), you don't need to crawl under the truck. There are several ways to perform an Allison

Once you have located the digits, you have three options for a lookup: Allison plates on the 1000/2000 series (common in

Once the serial number is found, you can use official and third-party tools to find detailed specifications: Allison HUB™ | Allison Transmission

Indicates the ratio coverage (0–3 for close ratio, 4–6 for wide ratio).

Allison plates on the 1000/2000 series (common in GM/Chevy vans and pickups) are notorious for fading to white.