Dorman 901-063 4WD Switch
OE Quality 60-Day Returns
Dorman

Dorman 901-063 4WD Switch

Brand Dorman 901-063
Attached Lead Wires No Lead Wires Required
Mounting Location Dash
Package Contents 1 Switch
Terminal Type Blade
Wiring Harness Included No
Fits Chevrolet and GMC · 18 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 blade terminals and requires no lead wires.

Cross-references 1S4251, 15063844 and FWA115 for the same application. See all 5.

$55.63Free shipping
In stock · usually ships same day before 1pm CST
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Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all 4WD Switch options

Dorman 901-063 4WD Switch

This Dorman 4WD switch restores dash-mounted transfer case control for select Chevrolet and GMC trucks and SUVs. It matches the original switch’s appearance and function for a clean OE-style replacement on NP1 electronic shift applications.

Key Features

  • Direct replacement 4WD switch for dash mounting
  • Blade terminal type for factory-style electrical connection
  • No lead wires required
  • No wiring harness included
  • Built from quality materials for dependable operation and durability

Detailed Description

Dorman 901-063 is a replacement 4WD switch engineered for vehicles equipped with the 2-speed electronic shift transfer case and RPO code NP1. It is designed to match the original switch’s look and function, making it a practical choice for Chevrolet Avalanche 2500, Silverado 2500, Silverado 2500 HD, Silverado 3500, Suburban 2500, and GMC Sierra and Yukon XL applications. This part number, 901-063, is built for straightforward dash installation and factory-style operation.

This part cross-references 15063844 and SW4522 for the same application.

What It Helps Fix

  • Inoperative or intermittent 4WD mode selection
  • Worn, cracked, or faded dash switch controls
  • Transfer case shift command issues at the switch
  • Loss of factory-style 4WD interface on NP1-equipped vehicles
  • Electrical contact problems caused by aging switch components

Installation Notes and Tips

Mounts in the dash and uses blade terminals. No lead wires are required, and no wiring harness is included. Verify the vehicle has RPO code NP1 and confirm the original switch style before installation. This 4WD switch is a direct-fit replacement for the listed Chevrolet and GMC applications, including 2001-2002 Silverado 2500 HD and 2001-2002 Sierra 2500 HD models.

Quality Assurance

Dorman designs this replacement switch to match original appearance and function while using quality materials for reliable performance and durability. It is intended as an OE-style service part for select Chevrolet and GMC 4WD systems.

Related reading

This part fits 18 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2002ChevroletAvalanche 2500N/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
2002ChevroletSilverado 2500N/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
2002ChevroletSilverado 2500 HDN/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
2002ChevroletSilverado 3500N/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
2002ChevroletSuburban 2500N/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
2002GMCSierra 2500N/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
2002GMCSierra 2500 HDN/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
2002GMCSierra 3500N/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
2002GMCYukon XL 2500N/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
2001ChevroletSilverado 2500N/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
2001ChevroletSilverado 2500 HDN/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
2001ChevroletSilverado 3500N/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
2001ChevroletSuburban 2500N/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
2001GMCSierra 1500N/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
2001GMCSierra 2500N/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
2001GMCSierra 2500 HDN/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
2001GMCSierra 3500N/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
2001GMCYukon XL 2500N/Aw/RPO Code NP1 (2 Speed, Electronic Shift, Transfer Case)
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
1S425115063844FWA115SW4522TCA30