: Offers advanced identification tools, parts groups, and subassembly information. Sales + Service Locator
Write down both the Serial Number (S/N) and the Assembly Number (A/N) . The assembly number is highly useful if the serial number lookup fails, as it identifies the exact mechanical configuration. Navigate to the Portal: Open the Allison HUB link.
Look on the passenger side (right side) or the driver's side (left side) toward the rear of the transmission main housing.
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If you are buying a (Remanufactured) transmission, use this specific link: Link: https://www.allisontransmission.com/parts-service/reman/warranty-registration
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Access to unit history, build/ship dates, and warranty information.
Typically designates 3000 and 4000 Series medium- and heavy-duty transmissions. Troubleshooting Lookup Issues
Displays the original warranty registration date and whether any extended factory coverage remains active. ⚠️ Troubleshooting Missing or Damaged Tags
While primarily designed to find service centers, these apps link directly into official support channels where serial validation is required for service history tracking. Understanding Your Serial Number: What the Digits Mean
"It's better," Renny said, logging off. "Doctors guess half the time. The link tells you the truth. Now go get the wiring kit. I want to hear this thing roar before lunch."
While the full number is needed for exact parts, the starting digits often identify the product family: Transmission Series Serial Number Starting Digits 631, 632, or 9308 3000 Series 651, 652, or 9307 4000 Series 661, 662, or 943 AT500 / AT 1500 321 or 9108 MT600 Series 241 or 242 HT 700 Series Why Serial Number Identification Matters Allison HUB™ | Allison Transmission
The system will generate a detailed build spec profile, revealing fluid capacities, original valve body calibrations, and exact gear ratios. Troubleshooting Common Lookup Issues
