Allison Transmission Serial Number Lookup Link Repack May 2026

: Most often found on the passenger side (right side) of the transmission.

: Depending on the series, it may be on the driver’s side, rear housing face, or top edge. allison transmission serial number lookup link

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 : Most often found on the passenger side

The serial number is typically a located on a metal data plate attached to the transmission housing. : A tool specifically designed to check coverage

: A tool specifically designed to check coverage for transmissions registered with Allison or those with added Extended Coverage.