MP1626XHD Remanufactured GM Electric-Shift Gear-Drive Transfer Case — 4WD, Aluminum Housing, OE# 12578110 — 2007–2013 Chevy/GMC 2500 HD & 3500 HD

When a heavy-duty transfer case fails on a working truck, the downtime is costly and the stakes are high. US Powertrain's remanufactured GM MP1626XHD transfer case is engineered to restore the full 4WD capability of 2007-2013 Chevrolet Silverado 2500 HD, Silverado 3500 HD, GMC Sierra 2500 HD, and Sierra 3500 HD trucks with an OE-quality rebuild that addresses the failure points found in the original unit. This is not a simple clean-and-reseal operation. Every internal component is inspected to OE tolerance standards, worn or marginal parts are replaced, and the completed assembly undergoes a rigorous three-step spin-test protocol before it leaves the facility. The gear-drive architecture with offset output shaft is retained exactly as GM designed it, and each unit is built around OE-grade Timken and Koyo bearings — the same bearing brands specified in the original equipment. A new BorgWarner chain eliminates one of the most common failure modes in these units. The aluminum housing is reconditioned to specification, and the electric-shift system with its single electrical connector is fully tested for proper engagement across all drive modes. Manufactured in the USA and backed by a 3-year/36,000-mile warranty, this transfer case delivers the confidence working truck owners and professional technicians demand from a drivetrain rebuild.

2007-2013 Chevrolet Silverado 3500 HD, 2007-2013 Chevrolet Silverado 2500 HD, 2007-2007 GMC Sierra 3500 Classic, 2007-2013 GMC Sierra 2500 HD, 2007-2007 Chevrolet Silverado 3500 Classic, 2007-2013 GMC Sierra 3500 HD

Reman Transfer Case MP1626XHD Electric Shift Gear Drive Aluminum Housing

Reman Transfer Case - GM MP1626XHD Electric Shift - 4WD HD Truck

Remanufactured GM MP1626XHD electric-shift transfer case with gear drive, aluminum housing, offset output shaft, and 1 electrical connector. Built to OE spec 12578110. Fits 2007-2013 Chevy/GMC 2500 HD and 3500 HD 4WD trucks.

US Powertrain Remanufactured Transfer Case MP1626XHD Electric Shift Gear Drive for 2007-2013 Chevy Silverado 2500/3500 HD & GMC Sierra 2500/3500 HD 4WD

New BorgWarner drive chain replaces the most common wear component in the MP1626XHD, restoring smooth, quiet 4WD engagement and eliminating chain-slap noise at the source.

OE-grade Timken and Koyo bearings throughout — the same bearing brands GM specified — ensure long-term durability and eliminate premature noise or play after installation.

100% internal component inspection to OE tolerance standards means no marginal or worn parts are carried forward — every rebuilt unit meets or exceeds original equipment specifications.

Three-step spin-test quality control protocol validates every unit for proper operation across all shift modes before shipment — zero untested units leave the facility.

Direct replacement for OE part number 12578110 — gear-drive design with offset output shaft and aluminum housing retained exactly as GM engineered it for a true bolt-in fit.

Manufactured in the USA and backed by a 3-year/36,000-mile warranty — coverage that reflects confidence in the build quality and gives professional installers and truck owners peace of mind.

WARNING: This product contains chemicals known to the State of California to cause cancer or birth defects or other reproductive harm. See www.p65warnings.ca.gov for details.

Do not use generic automatic transmission fluid. Use only GM-specified Autotrak II fluid or an approved equivalent. Incorrect fluid will damage the electric-shift clutch components and voids the warranty.

Brand: US Powertrain
UPC: 00810190601181
Drive Type: Gear
Electrical Connector Quantity: 1
Gear Or Chain Type: Gear
Grade Type: Regular
Housing Material: Aluminum
Mounting Hardware Included: NO
Output Shaft Position: Offset
Prop 65 - Long Label: This product may contain a chemical known to the state of California to cause cancer or birth defects. www.p65warnings.ca.gov
Prop 65 - Short Label: WARNING: Cancer – www.p65warnings.ca.gov
Prop 65 Y/N: Y
Wiring Harness Included: N

Warranty Time: 3 YR/36,000Mi

Interchange:

• General Motors: 12578110
• Hollander: 412-668
• Hollander: 412-00669
• General Motors: 19125972
• General Motors: 19125656
• General Motors: 19125969

Applications:

• 2007-2013 Chevrolet Silverado 2500 HD - PartType: Transfer Case - Position: N/A
• 2007-2007 Chevrolet Silverado 3500 Classic - PartType: Transfer Case - Position: N/A
• 2007-2013 Chevrolet Silverado 3500 HD - PartType: Transfer Case - Position: N/A
• 2007-2013 GMC Sierra 2500 HD - PartType: Transfer Case - Position: N/A
• 2007-2007 GMC Sierra 3500 Classic - PartType: Transfer Case - Position: N/A
• 2007-2013 GMC Sierra 3500 HD - PartType: Transfer Case - Position: N/A