Allison Transmission Serial Number Lookup Link ✨

| Serial Number Prefix (First 3 chars) | Typical Model Series | | :--- | :--- | | B66, B67, B68 | 1000/2000 Series (5-speed) | | C93, C94, C95 | 3000 Series (6-speed) | | X12, X13, X14 | 4000 Series (7-speed) | | 69xxxxx (Legacy) | HT700 or MT600 Series |

Whether you are performing routine maintenance, ordering parts, or checking a warranty, your Allison transmission serial number (S/N) is the most critical piece of information you can have. Using an incorrect identifier can lead to ordering the wrong parts and costly maintenance errors. allison transmission serial number lookup link

: The serial number is usually 10 digits long and is listed on the bottom left of the data plate, directly under the model number. Quick Identification by Serial Prefix Common Allison series often start with these digits: 1000/2000 Series : Starts with 3000 Series : Starts with 4000 Series : Starts with Dartco Transmission | Serial Number Prefix (First 3 chars) |