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Substitute Product : Custom 4-Flat, Select Traverse, Acadia, Enclave, OEM Tow Package Required #56245
UPC: 612314562022

Custom Wiring Harness #56202

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  • Plugs into vehicle tail light assembly to provide a 4-way flat socket
  • Simple plug-and-play design eliminates the need for cutting or splicing
  • 4-way flat output connects tail lights, brake lights and turn signals
  • Equipped with a powered 3-wire to 2-wire tail light converter
  • Constructed with SMT circuitry for better performance and durability
  • Dust cover included to keep connector clean when not in use
  • Backed by a limited one-year warranty
  • Made in USA


  • Includes powered 2-wire electrical converter with wiring kit (connection to battery required)



Guides & Install Sheets

Product Videos


  • MaterialBlank
  • Part TypeCustom Wiring Harness
  • Shipping Weight1.688
  • Superceded by Item56245
  • Turn and Brake Circuits3.0 Amps
  • Tail Light Circuits6.0 Amps
  • Electrical System Type2W
  • Output Type4-Way Flat
  • Converter TypeCircuit Protected and Powered

A CURT custom wiring harness (also called a T-connector) is a simple, plug-and-play electrical device that eliminates the need for cutting, splicing and soldering when installing vehicle-to-trailer wiring.

Most vehicles do not come ready to tow. Unless your vehicle has a towing package, it is probably not equipped with a trailer wiring connector. This is where CURT's custom wiring harnesses come into play. Custom wiring harnesses plug into your vehicle's electrical system using original equipment (OEM) connectors. Our custom wiring harnesses use two or more OEM connectors to plug in at the taillight assembly and provide a standard trailer socket to allow a trailer to be plugged into your vehicle's power system.

This harness provides a 4-way flat connector socket and comes with a circuit-protected converter. It is designed to be a custom wiring harness for certain years of the GMC Acadia or Buick Enclave (to verify your vehicle compatibility, see the CURT application guide at CURT custom wiring harnesses are long-lasting and quick to install. They come with dust covers to keep your connector clean when not in use and feature a one-year limited warranty to give you peace of mind.

2013 Buick Enclave ALL
2014 Buick Enclave ALL
2015 Buick Enclave ALL
2016 Buick Enclave ALL
2013 GMC Acadia ALL
2014 GMC Acadia ALL
2015 GMC Acadia ALL
2016 GMC Acadia ALL
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