404 Parts

GM Upfitter Auxiliary Switch 20" Extension Harness

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  • Regular price $79.99
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This harness is an extension harness for a factory 3 or 5 button GM upfitter auxiliary switch.  It is 20 inches in lengh and can be used for custom relocation applications. Completely plug & play without cutting or splicing and is wrapped to match your existing factory wire harnessing for a seamless OEM look.  


  • High Quality OEM Grade Connectors
  • Matching Gauge Wire
  • 20" Wire Length
  • Professionally Wrapped for a Seamless OEM look 


  • GM Trucks with or adding GM Upfitter Auxiliary Switches.  This harness is only to relocate harness to a custom position. 
  • VIN Check Guarantee does not apply to custom wiring harnesses. 


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