Standard Ignition TCM108 Transfer Case Motor

Transfer Case Motor for GM 4x4 Applications

Standard Ignition TCM108 is a transfer case motor built for select Chevrolet 4x4 trucks and SUVs with NP4 or NP8 transfer case codes. It uses a black and gray housing with round and square connector shapes, a female 2-connector interface, and male blade terminals for direct electrical connection.

Key Features

• Transfer case motor / actuator for electronic 4WD engagement
• Black and gray finish with all-standard surface treatment
• Female connector design with 2 connectors
• Round and square connector shapes for OE-style fitment
• Male blade terminals with 6 + 4 terminal layout
• Contents: actuator only
• Standard Ignition TCM108 replacement part

Fitment Details

• Fits 2000-2005 Chevrolet Blazer, N/A, Transfer Case Code NP4, NP8
• Fits 1998-1999 Chevrolet Blazer, N/A
• Fits 1998-1999 Chevrolet K1500, N/A
• Fits 1998-1999 Chevrolet K1500 Suburban, N/A
• Fits 1998-1999 Chevrolet K2500, N/A
• Fits 1998-1999 Chevrolet K2500 Suburban, N/A

What It Helps Resolve

• Inoperative 4WD shift motor operation
• Transfer case not switching between drive modes
• Intermittent engagement of NP4 or NP8 transfer case functions
• Electrical actuator failure at the transfer case
• Drive mode selection issues in Chevrolet Blazer and K-series trucks

Installation Notes

Verify the transfer case code and connector style before ordering. Compare the existing actuator’s connector shape, terminal layout, and mounting points to the original unit. This part cross-references Dorman - OE Solutions 600-901 for the same application.

Quality Assurance

Standard Ignition supplies replacement electrical components for service applications, and this transfer case motor is built to match the listed OE-style fitment and connector configuration for the specified Chevrolet models.