Allison Transmission maintains a customer support line.
If you have access to software (dealers/repair shops):
The safest and most accurate tool is the official website. Navigate to the public Allison Transmission website. Access the Parts and Service or E-Learn tab. Locate the Serial Number Lookup tool. Step 2: Enter the Digit Sequence Allison Transmission Serial Number Lookup
To minimize downtime, keep a digital log of your fleet's transmission data. Fill out this quick template for every vehicle in your garage: _______________ Vehicle VIN: _______________ Allison Model: _______________ Transmission S/N (10 digits): _______________ Assembly Number (A/N): _______________
The model number identifies the transmission series and often indicates the type of service it was designed for. For instance, a model number for a motorhome might read "1000MH," with the "MH" signifying "Motorhome". You may find detailed breakdowns of model numbers to determine the series and sub-series of your transmission. Allison Transmission maintains a customer support line
A mechanic rebuilds a 4000 series and orders a new torque converter by visual inspection. Problem: The converter doesn't fit. Solution: Look up the Serial Number. The build sheet shows this specific unit was a special order for a fire truck with a different flex plate mounting depth. Without the lookup, they would have forced the incorrect converter, damaging the pump gear.
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Access the Parts and Service or E-Learn tab
The serial number is stamped on a metal data plate fixed to the transmission housing. The location of this plate changes depending on the transmission generation and series. On Highway Models (1000, 2000, 3000, 4000 Series)
Found on the passenger side near the rear accessory drive or PTO pad.
While the serial number identifies your specific individual unit, the or Spec Number tells parts specialists the exact blueprints used to construct it.
+--------------------------------------------------+ | ALLISON TRANSMISSION | | | | MODEL: MD 3060 S/N: 2410123456 | | PART NO: 29531234 WT: 530 LBS | | | +--------------------------------------------------+ 1. On the Transmission Tag (Most Reliable)