27780 Western Fisher 03-07 Chevy HB3, HB4 4 Port 3 Plug Wiring Kit Isolation Module Truck Side Light Harness

This kit was discontinued, you will need to update to the 3 port module system. You would need the 29047 Adapter, 29048 Headlight Harness, and 29070-1 Isolation Module.

If you need the complete wiring kit for the 3 plug truck side, you would need to get - 

Straight Blade.
V Plow.

Click here to use the Western Power Match to get the correct light harness.

Truck Side Light Wiring Kit for all 2003-2006 Chevy trucks and some 2007-2013 Chevy and GM with the HB3-HB4 vehicle lights only. The part # on this kit is 27780. We have all the others available too. You get the green label 4-port Module 27781, 26357 Truck Side 11-pin Light Harness, 26352 Short Harness and 26351 Long Harness. If you are just swapping trucks, you probably only need the light harness and not the complete kit. But if you need a module too, the kit is the best deal. This is the same for Fisher and Western. This is the 4-port isolation module and the 3-plug setup. We also recommend getting a tube of dielectric grease to protect these plugs.

Western went from relay wiring, to 4-port wiring, to 3-port wiring and now Multiplex wiring. We have all of these options available. We will also trade in your old wiring.

Here is a link to the Western Wiring Schematics Guide.

Here is the list of trucks this kit was used on:

2013, CHEVY/GMC, AVALANCHE 1500
2013, CHEVY/GMC, AVALANCHE 2500
2013, CHEVY/GMC, SUBURBAN/YUKON XL 1500
2013, CHEVY/GMC, SUBURBAN/YUKON XL 2500
2013, CHEVY/GMC, TAHOE/YUKON 1500

2012, CHEVY/GMC, AVALANCHE 1500
2012, CHEVY/GMC, AVALANCHE 2500
2012, CHEVY/GMC, SUBURBAN/YUKON XL 1500
2012, CHEVY/GMC, TAHOE/YUKON 1500

2011, CHEVY/GMC, AVALANCHE 1500
2011, CHEVY/GMC, AVALANCHE 2500
2011, CHEVY/GMC, TAHOE/YUKON 1500

2010, CHEVY/GMC, AVALANCHE 1500
2010, CHEVY/GMC, AVALANCHE 2500
2010, CHEVY/GMC, C3500 SILVERADO/SIERRA
2010, CHEVY/GMC, TAHOE/YUKON 1500

2009, CHEVY/GMC, AVALANCHE 1500
2009, CHEVY/GMC, AVALANCHE 2500
2009, CHEVY/GMC, C3500 SILV/SIERRA
2009, CHEVY/GMC, SUBURBAN/YUKON XL 1500
2009, CHEVY/GMC, SUBURBAN/YUKON XL 2500
2009, CHEVY/GMC, TAHOE/YUKON 1500

2008, CHEVY/GMC, AVALANCHE 1500
2008, CHEVY/GMC, C3500 SILVERADO/SIERRA
2008, CHEVY/GMC, SUBURBAN/YUKON XL 2500
2008, CHEVY/GMC, TAHOE/YUKON 1500

2007, CHEVY/GMC, AVALANCHE 1500
2007, CHEVY/GMC, C3500 CLASSIC
2007, CHEVY/GMC, C3500 SILVERADO/SIERRA
2007, CHEVY/GMC, K1500 SILVERADO/SIERRA Classic
2007, CHEVY/GMC, K1500HD SILVERADO/SIERRA
2007, CHEVY/GMC, K2500HD SILVERADO/SIERRA Classic
2007, CHEVY/GMC, K3500 SILVERADO/SIERRA Classic
2007, CHEVY/GMC, SUBURBAN/YUKON XL 1500
2007, CHEVY/GMC, SUBURBAN/YUKON XL 2500
2007, CHEVY/GMC, TAHOE/YUKON 1500

2006, CHEVY/GMC, AVALANCHE 1500
2006, CHEVY/GMC, AVALANCHE 2500
2006, CHEVY/GMC, C3500 SILVERADO/SIERRA
2006, CHEVY/GMC, K1500 SILVERADO/SIERRA
2006, CHEVY/GMC, K1500HD SILVERADO/SIERRA
2006, CHEVY/GMC, K2500HD SILVERADO/SIERRA
2006, CHEVY/GMC, K3500 SILVERADO/SIERRA
2006, CHEVY/GMC, K3600 SILVERADO/SIERRA
2006, CHEVY/GMC, SIERRA DENALI
2006, CHEVY/GMC, SUBURBAN/YUKON XL 1500
2006, CHEVY/GMC, SUBURBAN/YUKON XL 2500
2006, CHEVY/GMC, TAHOE/YUKON 1500
2006, CHEVY/GMC, YUKON DENALI
2006, CHEVY/GMC, YUKON XL DENALI

2005, CHEVY/GMC, AVALANCHE 1500
2005, CHEVY/GMC, AVALANCHE 2500
2005, CHEVY/GMC, C3500 SILVERADO/SIERRA
2005, CHEVY/GMC, K1500 SILVERADO/SIERRA
2005, CHEVY/GMC, K1500 SILVERADO/SIERRA w/4WS
2005, CHEVY/GMC, K1500HD SILVERADO/SIERRA
2005, CHEVY/GMC, K2500HD SILVERADO/SIERRA
2005, CHEVY/GMC, K3500 SILVERADO/SIERRA
2005, CHEVY/GMC, K3600 SILVERADO/SIERRA
2005, CHEVY/GMC, SIERRA DENALI
2005, CHEVY/GMC, SUBURBAN/YUKON XL 1500
2005, CHEVY/GMC, SUBURBAN/YUKON XL 2500
2005, CHEVY/GMC, SUBURBAN/YUKON XL 2500 w/4WS
2005, CHEVY/GMC, TAHOE/YUKON 1500
2005, CHEVY/GMC, YUKON DENALI
2005, CHEVY/GMC, YUKON DENALI +3RD Row Seat
2005, CHEVY/GMC, YUKON XL DENALI

2004, CHEVY/GMC, AVALANCHE 1500
2004, CHEVY/GMC, AVALANCHE 2500
2004, CHEVY/GMC, C3500 SILVERADO/SIERRA
2004, CHEVY/GMC, K1500 SILVERADO/SIERRA
2004, CHEVY/GMC, K1500 SILVERADO/SIERRA w/4WS
2004, CHEVY/GMC, K2500 SILVERADO/SIERRA
2004, CHEVY/GMC, K2500 SILVERADO/SIERRA w/4WS
2004, CHEVY/GMC, K2500HD SILVERADO/SIERRA
2004, CHEVY/GMC, K3500 SILVERADO/SIERRA
2004, CHEVY/GMC, K3600 SILVERADO/SIERRA
2004, CHEVY/GMC, SIERRA DENALI
2004, CHEVY/GMC, SIERRA DENALI w/4WS
2004, CHEVY/GMC, SUBURBAN/YUKON XL 1500
2004, CHEVY/GMC, SUBURBAN/YUKON XL 2500
2004, CHEVY/GMC, SUBURBAN/YUKON XL 2500 w/4WS
2004, CHEVY/GMC, TAHOE/YUKON 1500
2004, CHEVY/GMC, YUKON DENALI
2004, CHEVY/GMC, YUKON XL DENALI

2003, CHEVY/GMC, AVALANCHE 1500
2003, CHEVY/GMC, AVALANCHE 2500
2003, CHEVY/GMC, C3500 SILVERADO/SIERRA
2003, CHEVY/GMC, C3600 SILVERADO/SIERRA
2003, CHEVY/GMC, K1500 SILVERADO/SIERRA
2003, CHEVY/GMC, K1500 SILVERADO/SIERRA w/4WS
2003, CHEVY/GMC, K1500HD SILVERADO/SIERRA
2003, CHEVY/GMC, K1500HD SILVERADO/SIERRA w/4WS
2003, CHEVY/GMC, K2500 SILVERADO/SIERRA
2003, CHEVY/GMC, K2500HD SILVERADO/SIERRA
2003, CHEVY/GMC, K3500 SILVERADO/SIERRA
2003, CHEVY/GMC, K3600 SILVERADO/SIERRA
2003, CHEVY/GMC, SIERRA DENALI w/4WS
2003, CHEVY/GMC, SUBURBAN/YUKON XL 1500
2003, CHEVY/GMC, SUBURBAN/YUKON XL 2500
2003, CHEVY/GMC, TAHOE/YUKON 1500
2003, CHEVY/GMC, YUKON DENALI 1500 XL