Allison Transmission Serial Number Lookup !full! Jun 2026

On most models, the data tag is located on the passenger side of the transmission. It is often found on the lower rear face of the rear housing.

On older or specific vocational models, the tag may be on the lower rear face of the rear housing or near the bellhousing. 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 On most models, the data tag is located