SKP SK600903 Transfer Case Motor

Transfer Case Motor for NP8 4WD Systems

The SKP SK600903 transfer case motor restores electronic shifting between two-wheel drive and four-wheel drive on select GM and Isuzu SUVs. It is a direct replacement for vehicles equipped with the New Process 226 transfer case and a rectangular 7-pin connector.

• Replacement transfer case motor for electronic 2WD/4WD shifting
• Fits New Process 226 transfer case applications with RPO code NP8
• Rectangular plug with 7 pins
• Direct-fit service part for select Chevrolet, GMC, Buick, Oldsmobile, and Isuzu models
• Part number SK600903 for catalog lookup and ordering

Detailed Product Information

SKP SK600903 is a replacement transfer case motor that moves the transfer case between drive modes when the shift system is commanded from the cabin. On affected Chevrolet Trailblazer, GMC Envoy, and related platforms, a worn motor can interrupt the shift process and leave the vehicle stuck in one drive mode. This unit is built for NP8-equipped New Process 226 transfer cases and matches the 7-pin rectangular connector used on the listed applications. This part cross-references 600903 for the same application.

What This Part Helps Resolve

• Inability to switch between 2WD and 4WD
• Delayed or incomplete transfer case engagement
• Transfer case shift motor failure codes
• Intermittent four-wheel drive operation
• Drive mode selection issues on NP8-equipped SUVs

Installation Notes and Fitment Tips

Compatible With 2002-2009 Chevrolet Trailblazer, 2002-2006 Chevrolet Trailblazer EXT, 2002-2009 GMC Envoy, 2002-2006 GMC Envoy XL, 2004-2005 GMC Envoy XUV, 2004-2007 Buick Rainier, 2002-2004 Oldsmobile Bravada, and 2003-2008 Isuzu Ascender. Verify the transfer case is New Process 226 with RPO code NP8 and confirm the rectangular 7-pin connector before ordering. The SK600903 should be matched to the vehicle’s transfer case configuration and electrical connector style during diagnosis and replacement.

Quality Assurance

SKP replacement transfer case motors are built as service parts for restoring factory-style shift function on supported applications. Use the vehicle’s transfer case identification and connector details to confirm fitment before installation.