Dorman 901-064 4WD Switch

OE-Style 4WD Dash Switch

This Dorman 4WD switch is built for drivers replacing a worn or nonresponsive dash-mounted transfer case switch. It matches the original switch’s appearance and function for specified applications, including Chevrolet Trailblazer, GMC Envoy, and related GM SUVs.

Part number 901-064 is made with quality materials for dependable operation and a clean factory-style fit in the dash.

Key Features

• Dash-mounted 4WD switch for selected GM applications
• OE-style appearance and function
• Pin terminal type for direct electrical connection
• No attached lead wires
• No wiring harness included
• Includes 1 switch

Detailed Description

Dorman 901-064 is a replacement 4WD switch designed for vehicles that use a dash-mounted selector for four-wheel-drive operation. It is engineered to match the original switch layout and operating feel, helping restore normal transfer case control without changing the factory dash appearance. This part number 901-064 is a direct-fit solution for many Chevrolet Trailblazer and GMC Envoy applications, along with Buick Rainier, Trailblazer EXT, Envoy XL, Envoy XUV, and Oldsmobile Bravada models listed in the fitment data.

This part cross-references Standard Ignition TCA-41 for the same application.

Common Problems It Can Solve

• Inoperative or intermittent 4WD selector switch
• Broken, worn, or faded dash switch face
• Loss of normal transfer case mode selection
• Electrical contact issues at the switch terminal
• Restoring factory-style control in GM 4WD SUVs

Installation Notes and Tips

Fits 2002-2009 Chevrolet Trailblazer, N/A; 2002-2006 Chevrolet Trailblazer EXT, N/A; 2002-2009 GMC Envoy, N/A; 2002-2006 GMC Envoy XL, N/A; 2004-2005 GMC Envoy XUV, N/A; 2004-2007 Buick Rainier, N/A; 2002-2004 Oldsmobile Bravada, N/A. Verify the dash switch style and terminal configuration before installation. Because this switch uses pin terminals and does not include attached lead wires or a wiring harness, confirm the vehicle connector matches the original setup before removal and replacement.

Quality Assurance

Dorman replacement electrical components are built to match original equipment form and function for specified vehicles. This switch is manufactured from quality materials to support reliable performance and durability in regular use.