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Dorman 901-154 4WD Switch
| Brand | Dorman 901-154 |
|---|---|
| Attached Lead Wires | No |
| Mounting Location | Dash |
| Package Contents | 1 Switch |
| Terminal Type | Blade |
| Wiring Harness Included | No |
| Fits | Chevrolet and GMC · 42 vehicles |
OE-style replacement. Matches the original switch's appearance and function on specified applications.
Quality materials. Engineered for reliable performance and durability.
Blade terminals. Uses a blade terminal design for straightforward electrical connection.
Cross-references Standard Ignition TCA-43, 1S8328 and 15969707 for the same application. See all 5.
Dorman 901-154 4WD Switch for GM Trucks and SUVs
This Dorman 4WD switch is built for vehicles with an electronic shift transfer case and dash-mounted control. It matches the original switch’s appearance and function for specified Chevrolet and GMC applications, making it a direct replacement for worn or nonresponsive 4WD controls.
- Dash-mounted 4WD switch for electronic shift transfer case systems
- Blade terminal type for factory-style electrical connection
- No attached lead wires and no wiring harness included
- Engineered from quality materials for reliable operation and durability
- OE-style fit and function for selected Chevrolet and GMC trucks and SUVs
Detailed Product Overview
The Dorman 901-154 is a replacement 4WD switch designed for GM vehicles equipped with RPO code NP1, the 2-speed electronic shift transfer case. It is a practical solution for drivers of Chevrolet K1500, K2500, Tahoe, Suburban, and GMC K1500, K2500, Yukon models that use a dash-mounted selector. This part number 901-154 is also cross-referenced to Standard Ignition TCA-43 for the same application.
Built to mirror the original switch layout and operating feel, this 4WD switch helps restore normal transfer case control without changing the factory dash configuration. It is a direct-fit replacement for the specified Chevrolet and GMC platforms, including Chevrolet K2500 and GMC K2500 models from 1996-2000 with NP1 transfer case equipment.
Common Problems This Switch Can Address
- 4WD selector switch no longer responds when pressed
- Intermittent transfer case mode selection
- Worn or damaged dash switch contacts
- Broken or faded original 4WD control switch
- Loss of factory-style operation on NP1 electronic shift systems
Installation Notes and Tips
Verify the vehicle’s RPO code NP1 before ordering. This switch uses blade terminals, mounts in the dash, and does not include attached lead wires or a wiring harness. Compare the original switch connector and dash opening to confirm proper replacement before installation. The part number 901-154 is intended for the listed Chevrolet and GMC fitments only.
Quality Assurance
Dorman designs this 4WD switch to match original appearance and function on the specified applications. It is manufactured from quality materials to support dependable performance and long service life in daily use.
| Year | Make | Model | Drive Type | Position | Notes |
|---|---|---|---|---|---|
| 2000 | Chevrolet | K2500 | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 2000 | GMC | K2500 | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1999 | Chevrolet | K1500 | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1999 | Chevrolet | K1500 Suburban | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1999 | Chevrolet | K2500 | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1999 | Chevrolet | K2500 Suburban | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1999 | Chevrolet | Tahoe | 4WD | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1999 | GMC | K1500 | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1999 | GMC | K1500 Suburban | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1999 | GMC | K2500 | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1999 | GMC | K2500 Suburban | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1999 | GMC | Yukon | 4WD | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1998 | Chevrolet | K1500 | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1998 | Chevrolet | K1500 Suburban | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1998 | Chevrolet | K2500 | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1998 | Chevrolet | K2500 Suburban | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1998 | Chevrolet | Tahoe | 4WD | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1998 | GMC | K1500 | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1998 | GMC | K1500 Suburban | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1998 | GMC | K2500 | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1998 | GMC | K2500 Suburban | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1998 | GMC | Yukon | 4WD | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1997 | Chevrolet | K1500 | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1997 | Chevrolet | K1500 Suburban | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1997 | Chevrolet | K2500 | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1997 | Chevrolet | K2500 Suburban | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1997 | Chevrolet | Tahoe | 4WD | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1997 | GMC | K1500 | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1997 | GMC | K1500 Suburban | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1997 | GMC | K2500 | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1997 | GMC | K2500 Suburban | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1997 | GMC | Yukon | 4WD | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1996 | Chevrolet | K1500 | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1996 | Chevrolet | K1500 Suburban | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1996 | Chevrolet | K2500 | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1996 | Chevrolet | K2500 Suburban | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1996 | Chevrolet | Tahoe | 4WD | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1996 | GMC | K1500 | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1996 | GMC | K1500 Suburban | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1996 | GMC | K2500 | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1996 | GMC | K2500 Suburban | — | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
| 1996 | GMC | Yukon | 4WD | N/A | w/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case) |
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