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Dorman 901-162 4WD Switch
Reliable 4WD Switch for Chevrolet and GMC Trucks
The Dorman 901-162 4WD switch is designed for precise control of four-wheel drive systems in select Chevrolet and GMC heavy-duty trucks. Engineered for dash mounting with blade terminals, this switch ensures a secure and straightforward connection without the need for attached lead wires or a wiring harness.
- Terminal Type: Blade terminals for reliable electrical connection
- Mounting Location: Dash-mounted for easy access and operation
- Package Contents: Includes one 4WD switch
- No attached lead wires or wiring harness included, allowing for flexible installation
Product Details and Compatibility
This 4WD switch (part number 901-162) is compatible with a range of Chevrolet and GMC heavy-duty models, including the Avalanche 2500, Sierra 2500, Sierra 2500 HD, Sierra 3500, Silverado 2500, Silverado 2500 HD, Silverado 3500, Suburban 2500, and Yukon XL 2500. The blade terminal design supports a secure electrical connection, while the dash mounting location provides convenient access for drivers managing four-wheel drive engagement.
Common Applications and Problem Resolution
- Replacement for faulty or worn 4WD switches in Chevrolet Avalanche 2500 and GMC Sierra 2500 HD
- Restores proper four-wheel drive system engagement in Silverado 3500 and Yukon XL 2500
- Addresses intermittent or non-responsive 4WD switch issues
- Eliminates electrical connection problems caused by damaged terminals
- Supports maintenance of dash-mounted control systems without additional wiring harnesses
Installation Notes and Tips
Installation of the Dorman 901-162 4WD switch requires removal of the existing dash-mounted switch. Since this part does not include attached lead wires or a wiring harness, ensure compatibility with your vehicle’s existing wiring setup before installation. Use appropriate tools to disconnect blade terminals carefully to avoid damage. Verify proper switch operation after installation by testing four-wheel drive engagement in your Chevrolet or GMC truck.
Quality Assurance and Warranty
Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 901-162 4WD switch undergoes quality checks to ensure reliable performance in demanding automotive environments. Please refer to Dorman’s warranty policy for specific coverage details related to this part.
| Brand | Dorman |
| Part Number | 901-162 |
| Attached Lead Wires | No |
| Mounting Location | Dash |
| Package Contents | 1 Switch |
| Terminal Type | Blade |
| Wiring Harness Included | No |
This part fits 17 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2002 | Chevrolet | Avalanche 2500 | N/A | Small Connector is 6 Way and Large Connector is 8 Way; w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 2002 | Chevrolet | Silverado 2500 | N/A | Small Connector is 6 Way and Large Connector is 8 Way; w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 2002 | Chevrolet | Silverado 2500 HD | N/A | Small Connector is 6 Way and Large Connector is 8 Way; w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 2002 | Chevrolet | Silverado 3500 | N/A | Small Connector is 6 Way and Large Connector is 8 Way; w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 2002 | Chevrolet | Suburban 2500 | N/A | Small Connector is 6 Way and Large Connector is 8 Way; w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 2002 | GMC | Sierra 2500 | N/A | Small Connector is 6 Way and Large Connector is 8 Way; w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 2002 | GMC | Sierra 2500 HD | N/A | Small Connector is 6 Way and Large Connector is 8 Way; w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 2002 | GMC | Sierra 3500 | N/A | Small Connector is 6 Way and Large Connector is 8 Way; w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 2002 | GMC | Yukon XL 2500 | N/A | Small Connector is 6 Way and Large Connector is 8 Way; w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 2001 | Chevrolet | Silverado 2500 | N/A | Small Connector is 6 Way and Large Connector is 8 Way; w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 2001 | Chevrolet | Silverado 2500 HD | N/A | Small Connector is 6 Way and Large Connector is 8 Way; w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 2001 | Chevrolet | Silverado 3500 | N/A | Small Connector is 6 Way and Large Connector is 8 Way; w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 2001 | Chevrolet | Suburban 2500 | N/A | Small Connector is 6 Way and Large Connector is 8 Way; w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 2001 | GMC | Sierra 2500 | N/A | Small Connector is 6 Way and Large Connector is 8 Way; w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 2001 | GMC | Sierra 2500 HD | N/A | Small Connector is 6 Way and Large Connector is 8 Way; w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 2001 | GMC | Sierra 3500 | N/A | Small Connector is 6 Way and Large Connector is 8 Way; w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 2001 | GMC | Yukon XL 2500 | N/A | Small Connector is 6 Way and Large Connector is 8 Way; w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.