Older highway and off-road models use a combination of letters and numbers. BK95A12 BK : Model series indicator. 95 : Year of manufacture (e.g., 1995). A12 : Sequential build code. 5. Troubleshooting Common Lookup Issues
Once you have the number, you can use several tools to access detailed information: Allison HUB™ | Allison Transmission Allison Transmission Serial Number Lookup
Internal components like filters, valve bodies, and electronic control modules (ECMs) change based on assembly numbers. Older highway and off-road models use a combination
Official digital platforms provide advanced lookup capabilities for owners and technicians: A12 : Sequential build code
: Look on the passenger side (right side) of the transmission main housing, near the rear.
Different pan designs (shallow vs. deep) change the required fluid capacity and filter length.
Visit the official website and navigate to the "Service" or "Parts" tab. Access the publicly available Serial Number Lookup Tool . Input your 10-digit number without spaces or dashes. What the official lookup provides: Exact model designation (e.g., 3000 EVS vs. 3000 RDS). Original ship date from the factory.