Yukon Gear & Axle ZTSM600-910 NP246C Transfer Case Shift Motor Splined Shaft

The Yukon Gear & Axle ZTSM600-910 is a replacement transfer case shift motor designed specifically for the NP246C (NVG246) Electronic Shift On-the-Fly (ESOF) transfer case. This unit features a splined output shaft and serves as the electromechanical actuator responsible for engaging and disabling 4WD modes via the dash-mounted selector switch.

The NP246C is a chain-driven, two-speed transfer case found on a wide range of GM trucks and SUVs equipped with RPO Code NP8 (push-button, 2-speed shift). When the original motor fails, symptoms typically include 4WD modes not engaging or disengaging, a binding drivetrain, or warning lights on the dash. This motor restores proper operation across all four selector positions: 2WD, Auto 4WD, 4 High, and 4 Low.

Key Features:

• Designed for NP246C / NVG246 transfer cases with RPO Code NP8
• Splined output shaft design for secure engagement with transfer case shift shaft
• 8-pin rectangular electrical connector (4 pins in row 1, 3 pins in row 2)
• 3-bolt mounting pattern for direct bolt-on installation
• Replaces OEM part numbers: 12384980, 19125571, 19125640, 88962314, 12584314, 5170543AA
• Cross-references: Dorman 600-910, 600-2292, 48-113, 142145
• Supersedes part number: UMM2237

USA Standard Gear, a brand under the Yukon Gear & Axle family, is an industry-leading supplier of transfer case components with one of the largest inventories of OEM and aftermarket drivetrain parts available.