Specifications:

  • Dash Mounted 4WD (Four Wheel Drive) Switch
  • Four selection dash control (2HI, 4HI, 4LO, AUTO 4WD)
    • Fits models with AUTO 4WD Transfer Case - RPO Code "NP8"
  • Direct replacement
  • Built to strict quality control standards

NOTE: If you have any questions about this fitting your application, please call your local GM dealer with the above part numbers.

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

  1. step : Removing the 4WD Switch (1:18)
    • Pop out the dashboard trim by hand
    • Turn the ignition on
    • Shift the shifter to its lowest position
    • Lower the steering wheel to its lowest position
    • Remove the dash trim
    • Place the vehicle in park
    • Pry out the switch with a trim tool by pressing the tabs
    • Disconnect the wiring harnesses
  2. step : Installing the 4WD Switch (2:30)
    • Connect the connectors
    • Press the switch into the dash
    • Shift the shifter to its lowest position
    • Press on the dashboard trim
    • Place the vehicle in park
    • Raise the steering column

Tools needed for replacement:

    Specialty Tools

  • Trim Tool Set

4.9 / 5.0
13 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
12
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0
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4 x 4 switch
Switch was shipped out and received with in 3 days.switch works perfectly.Indicator lights all work just a little dimmer from oem. I would recommend this item to others!! Great service.
April 19, 2018
Purchased
2 months ago
Four wheel drive switch
This switch is just perfect for my truck. My old one worked but the lights were out. It was less hassel to get a replacement than to fix the old one. Installation was easy and only took me about 10 minutes total. I received it quickly when ordered. Was the first thing I have ordered but wont be the last. Thank you.
December 3, 2017
Purchased
7 months ago
Perfect Fit
He switch fit perfectly. Install took about 3 minutes. If I needed to I'd purchase this product again.
September 30, 2017
Purchased
9 months ago
As ordered
It works. Unfortunately it was not the answer to my problem. As far as the product goes, it was cheap, fast shipping and now my 4x4 numbers are no longer worn out. My dash looks nicer...now onto figuring out what's wrong with my 4x4 system.
September 24, 2017
Arrived quickly
The's seem to go bad every six months on my 05 Suburban. Cheap enough and easy enough to just replace. Wish someone would guarantee the part to last a year or more.
May 13, 2017
Purchased
1 year ago
Great product
First of several orders from 1a. They were polite and professional in helping me identify exactly which switch I needed. This particular item was a plug and play part that took less than 10 minutes to install. The price was right, the part refreshed a dated look and fixed my issue quickly.
April 4, 2017
Purchased
1 year ago
Fixed it
The switch arrived quickly and was a direct replacement for factory switch. Fixed my problem of the auto 4wd malfunction.
March 30, 2017
Purchased
1 year ago
FOUR WHEEL DRIVE SWITCH 2005 GMC
INSTALLED THIS SWITCH IN 15 MINUTES, VERY PLEASED WITH THIS PART WORKED LIKE A CHARM. EXCELLENT PRICE AND VIDEO. WILL USE YOU AGAIN. TOM OC.
March 20, 2017
Purchased
1 year ago
Great items at a great price
The switch was at a great price and shipping was fast
March 4, 2017
Purchased
1 year ago
excellent
product worked perfectly. love the instructional videos
February 25, 2017
Purchased
1 year ago
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Vehicle Fit

  • 2006-2007 Cadillac Escalade Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2006-2007 Cadillac Escalade ESV Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2006-2007 Cadillac Escalade EXT Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2003-2006 Chevy Avalanche 1500 Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2003-2006 Chevy Silverado 1500 Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2007 Chevy Silverado 1500 Classic Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2003 Chevy Silverado 1500 HD Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2005-2006 Chevy Silverado 1500 HD Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2007 Chevy Silverado 1500 HD Classic Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2003-2004 Chevy Silverado 2500 Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2003-2006 Chevy Silverado 2500 HD Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2007 Chevy Silverado 2500 HD Classic Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2003-2004 Chevy Silverado 3500 Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2003-2006 Chevy Suburban 1500 Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2003-2006 Chevy Suburban 2500 Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2003-2006 Chevy Tahoe Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2003-2006 GMC Sierra 1500 Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2007 GMC Sierra 1500 Classic Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2003 GMC Sierra 1500 HD Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2005-2006 GMC Sierra 1500 HD Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2007 GMC Sierra 1500 HD Classic Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2003-2004 GMC Sierra 2500 Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2003-2006 GMC Sierra 2500 HD Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2007 GMC Sierra 2500 HD Classic Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2003-2004 GMC Sierra 3500 Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2003-2006 GMC Yukon Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2003-2006 GMC Yukon XL 1500 Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)
  • 2003-2006 GMC Yukon XL 2500 Four Wheel Drive Switch for Models with Electric 4 Wheel Drive and RPO Code NP8 (Push Button, 2 Speed Transfer Case)

This part replaces:

  • OE # 15136039
  • OE # 19259313
  • Reference Number 1S11004
  • Standard Motor Products TCA47
  • Wells SW8268
  • Dorman 901-072
Part #: 1AFWM00042

How-to Video:

(03:57 min)