Product Information

Curt Manufacturing's # 55515 GMC Sierra 3500HD Trailer Wiring Kit T-Connector Harnesses are designed to make connecting your trailers wiring a snap. No need to cut or modify your vehicles existing wiring harness, Curt's custom fit T-connector trailer wiring kits will plug right into your existings factory wiring. On most vehicles this simple design only requires you to unplug your stock harness at its connection point (usually located near your taillights) and then plug in the new Curt GMC Sierra 3500HD wiring kit. This requires no cutting or no soldering of any of the wires. Built-in converters are pre-wired into applications that require taillight conversion. Once installed this Curt 55515 kit will provide a standard 4 wire flat connection you connect you GMC Sierra 3500HD to your trailer.

Features & Benefits

  • Simple Plug and Go design
  • Curt 55515 is designed specifically for the GMC Sierra 3500HD
  • Provides a stand 4-wire flate connection for a vehicle to trailer connection
  • No cutting or splicing of the factory wiring system

Tech Specs

Install Time: 5 minutes minutes
Download Instructions: 55515 Instructions
Weight:
3 lbs.
SKU #55515 Fits:
  • 2014 GMC Sierra 3500 Cab & Chassis
  • 2013 GMC Sierra 3500 Cab & Chassis
  • 2012 GMC Sierra 3500 Cab & Chassis
  • 2011 GMC Sierra 3500 Cab & Chassis
  • 2010 GMC Sierra 3500 Cab & Chassis
  • 2009 GMC Sierra 3500 Cab & Chassis
  • 2008 GMC Sierra 3500 Cab & Chassis
  • 2007 GMC Sierra 3500 Cab & Chassis
  • 2006 GMC Sierra 3500 Cab & Chassis
  • 2005 GMC Sierra 3500 Cab & Chassis
  • 2004 GMC Sierra 3500 Cab & Chassis
  • 2003 GMC Sierra 3500 Cab & Chassis
  • 2002 GMC Sierra 3500 Cab & Chassis
  • 2001 GMC Sierra 3500 Cab & Chassis
  • Installation Notes

    OE Replacement 4-Flat
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