NV261HD Remanufactured 4WD Manual-Shift Chain-Drive Transfer Case — 1999–2007 Chevy/GMC Silverado Sierra 2500 HD / 3500, Non-Electric

When your heavy-duty GM truck's NV261HD transfer case fails, you need a replacement that's built to last — not just assembled to ship. The US Powertrain Remanufactured NV261HD Transfer Case is engineered for 4WD applications on 1999–2007 Chevrolet Silverado 2500 HD/3500 and GMC Sierra 2500/2500 HD/3500 trucks, delivering the durability and reliability that working trucks demand. US Powertrain goes beyond standard remanufacturing by identifying and addressing known OEM design weaknesses during the rebuild process. Every unit is assembled with a new BorgWarner chain — the same premium chain supplier trusted by original equipment manufacturers — ensuring smooth, dependable power transfer between axles. Worn or marginal bearings are replaced exclusively with OE-grade Timken and Koyo units, the same bearing brands used in original GM drivetrain applications. Where the original OEM housing design has known durability limitations, US Powertrain upgrades to a heavy-duty aluminum case, improving structural integrity and long-term reliability. Before leaving the facility, every transfer case undergoes 100% inspection of all internal components and a rigorous 3-step spin test to verify proper operation. Backed by a 3-year/36,000-mile warranty and manufactured in the United States, this is a transfer case built to work as hard as the truck it goes into. Replaces OEM part number 12576437.

Engineered for durability and peak performance, this part ensures reliability for your vehicle. Perfect for OEM replacement or upgrade needs

New BorgWarner chain installed in every unit — the same OE-supplier chain trusted by GM — ensures smooth, reliable 4WD power transfer and eliminates the stretch and wear that plagues high-mileage rebuilt units.

OE-grade Timken and Koyo bearings replace worn originals, matching the same bearing brands used in GM factory drivetrain assembly for precise fit and long-term durability.

Upgraded heavy-duty aluminum housing replaces weaker OEM magnesium cases where applicable, correcting a known design limitation and improving structural integrity for demanding work-truck applications.

100% inspection of all internal components ensures no worn, cracked, or out-of-spec parts make it into the finished unit — every transfer case leaves the facility fully validated.

3-step spin testing on every unit verifies proper engagement, shift function, and internal operation before shipment — so you install with confidence, not guesswork.

Manufactured in the United States and backed by a 3-year/36,000-mile warranty — delivering the coverage and accountability that heavy-duty drivetrain work demands.

WARNING: This product contains a chemical known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.p65warnings.ca.gov.

1999-2004 GMC Sierra 2500 4WD - NV261HD Manual Shift
2001-2006 Chevrolet Silverado 2500 HD 4WD - NV261HD Manual Shift
2001-2006 Chevrolet Silverado 3500 4WD - NV261HD Manual Shift
2001-2006 GMC Sierra 2500 HD 4WD - NV261HD Manual Shift
2001-2006 GMC Sierra 3500 4WD - NV261HD Manual Shift
2007 Chevrolet Silverado 2500 HD Classic 4WD - NV261HD Manual Shift
2007 Chevrolet Silverado 3500 Classic 4WD - NV261HD Manual Shift
2007 GMC Sierra 2500 HD Classic 4WD - NV261HD Manual Shift
2007 GMC Sierra 3500 Classic 4WD - NV261HD Manual Shift

Brand: US Powertrain
UPC: 00810190601013
Drive Type: Chain Driven
Gear Or Chain Type: Chain
Grade Type: Regular
Housing Material: Aluminum/ Magnesium
Mounting Hardware Included: NO
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
Non-Electric

Warranty Time: 3 YR/36,000Mi

Interchange:

• General Motors: 12576437
• Hollander: 412-00429

Applications:

• 1999-2004 GMC Sierra 2500 - PartType: Transfer Case
• 2001-2006 Chevrolet Silverado 2500 HD - PartType: Transfer Case
• 2001-2006 Chevrolet Silverado 3500 - PartType: Transfer Case
• 2001-2006 GMC Sierra 2500 HD - PartType: Transfer Case
• 2001-2006 GMC Sierra 3500 - PartType: Transfer Case
• 2007-2007 Chevrolet Silverado 2500 HD Classic - PartType: Transfer Case
• 2007-2007 Chevrolet Silverado 3500 Classic - PartType: Transfer Case
• 2007-2007 GMC Sierra 2500 HD Classic - PartType: Transfer Case
• 2007-2007 GMC Sierra 3500 Classic - PartType: Transfer Case