Application Notes: MP1225/MP1226; Manual Shift, 29 Spline Input Shaft, Option Code NQG, With MYD 6L90E Or MW7 Allison Transmission, Tag Numbers: 12578114, 12578115, 19125659, 19125660, 19125672, 24243014, 24243015, 24243560, 24245993, 24247207, 24247214, 24252680, 24252687, 24253512, Hollander Numbers: 412-608, 412-670, 412-742, Other Numbers: UMT141-3, UMT141-4.
Remanufacturing Process
Every transfer case we sell is fully remanufactured to meet or exceed OEM specifications. Our remanufacturing process:
- Deep Clean – To start the remanufacturing process, each transfer case is fully disassembled and cleaned
- Inspection – Each transfer case is carefully inspected for cracks, excessive wear, shaft warp, and chain stretch
- New Components – All seals, bearings, joints and rings are replaced as well as electrical components (solenoids and control units)
- Validation – After reassembly, each individual transfer case is spin tested as part of a detailed checklist validation process
Every unit is fully remanufactured and covered against defects in materials and workmanship. Email us to confirm the current warranty term for this unit before purchase.

