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PC: E20
UPC: 612314562596

Custom Wiring Harness, 4-Way Flat Output, Select Subaru WRX #56259

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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 tail light converter for vehicle-trailer compatibility
  • 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

Guides & Install Sheets

Product Videos

  • Product Videos CURT Custom Wiring & Taillight Converters Introduction


  • Electrical System Type3W
  • Battery-PoweredYes
  • HUB_USAD25
  • MaterialBlank
  • WarrantyOne-Year Limited Warranty
  • T-Connector LocationP3,P4
  • Installation DifficultyDifficult
  • Part TypeCustom Wiring Harness
  • Shipping Weight1.575
  • Turn and Brake Circuits3.0 Amps
  • Tail Light Circuits6.0 Amps
  • Output Type4-Way Flat
  • Converter TypeCircuit Protected and Powered

Making memories doesn't start when you reach your destination; it starts at the very first mile of your journey. Wherever your road begins and wherever it takes you, Bring It® with the power of CURT.

CURT custom wiring provides everything you need to connect your vehicle's electrical system to a trailer. With plug-and-play connectors, a custom wiring harness easily integrates with your vehicle taillights to provide a standard trailer wiring connector, typically in the form of a 4-way flat.

This custom wiring harness features a vehicle-specific design to perfectly fit certain years of the Subaru WRX (to verify vehicle compatibility, see the CURT application guide or use the Vehicle Lookup on the CURT website). It uses OEM-compatible connectors to "T" into the vehicle's taillight assembly and provides a standard 4-way flat output to power the taillights, brake lights and turn signals on your trailer.

To complete this custom wiring harness, it comes with a rubber dust cover. This cover keeps the connection points clean and well protected when the connector is not in use. Once installed, the connector can also be conveniently mounted on the vehicle's trailer hitch receiver tube, using a CURT Easy-Mount connector bracket. The bracket mounts onto the trailer hitch with no drilling required, and its powder-coated steel construction provides a solid attachment point for plugging in the trailer wiring.

2012 Subaru Impreza Sedan, excluding WRX
2013 Subaru Impreza Sedan, excluding WRX
2014 Subaru Impreza Sedan, excluding WRX
2015 Subaru Impreza Sedan, excluding WRX
2016 Subaru Impreza Sedan, excluding WRX
2015 Subaru WRX STI ALL
2016 Subaru WRX STI ALL
2017 Subaru WRX STI ALL
2018 Subaru WRX STI ALL
2019 Subaru WRX STI ALL
2015 Subaru WRX ALL
2016 Subaru WRX ALL
2017 Subaru WRX ALL
2018 Subaru WRX ALL
2019 Subaru WRX ALL
2020 Subaru WRX All
2020 Subaru WRX STI All
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