Allison Transmission Serial Number Lookup -

Identifying your Allison Transmission via its serial number is the most reliable way to access accurate parts lists, service manuals, and warranty information. The serial number is a unique 10-digit identifier assigned to every unit during manufacturing. Locating the Serial Number

• Location: Look at the lower rear of the transmission housing, usually on the driver’s side.
• Visual: It is typically a silver metal tag riveted to the case, located near the shift selector linkage or the PTO (Power Take-Off) opening.

Once you have the S/N, you can access detailed information through these official platforms: Allison HUB™: Allison Transmission Serial Number Lookup

• Large companies like FedEx or UPS order thousands of transmissions at once.
• They assign a custom Fleet Code to the serial number range.
• When a mechanic looks this up, it instantly tells them, "This is a FedEx standard unit; it uses this specific filter and this specific oil."
• This simplifies maintenance for fleet managers so they don't have to look up individual specs for 500 identical trucks.

Location:

Look on the passenger side of the transmission housing. It is often positioned on the lower rear face of the rear housing. Identifying your Allison Transmission via its serial number