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CURT Custom Wiring Harness #55301

Class: Wiring UPC: 612314553013

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MSRP $19.61

  • Plugs into existing OEM vehicle socket 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
  • Dust cover included to keep connector clean when not in use
  • Backed by a limited one-year warranty
  • Made in USA


  • Fits standard 2-wire system
Instruction Sheet Download pdf
Mount Type Description Blank
Side Application Type Description Blank
Shipping Weight 0.390
Finish Blank
Part Type Custom Wiring Harness
Warranty One Year Limited
T-Connector Location T3
Electrical System Type 2W
Output Type 4-Way Flat
UPC 612314553013

Additional Information

A CURT custom wiring connector (sometimes 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 connectors come into play. A custom wiring connector uses a single original equipment plug to plug into a special socket provided by your vehicle. Though this option is not available on every vehicle, some automotive manufacturers design their vehicles to be easily equipped for towing by supplying a socket, integrated into the vehicle's electrical system, to readily accept a custom wiring connector. With a CURT custom wiring connector, there is no need to tap into the taillight assembly because a special socket is already provided.

This custom wiring connector provides a 4-way flat connector socket and is designed to be a custom wiring option for certain years of the Ford F250 crew cab or Ford F-Series (except F250 crew cab) (to verify your vehicle compatibility, see the CURT application guide at CURT custom wiring connectors are designed to be long-lasting and simple 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.


Year Make Model Style Install Time Other Hitches
1977 Ford F-350 All
1979 Ford F-350 All
1973 Ford F-150 All
1976 Ford F-150 All
1978 Ford F-150 All
1974 Ford F-250 All
1975 Ford F-250 All
1974 Ford F-350 All
1975 Ford F-150 All
1977 Ford F-250 All
1979 Ford F-250 All
1976 Ford F-350 All
1977 Ford F-150 All
1979 Ford F-150 All
1973 Ford F-250 All
1978 Ford F-250 All
1978 Ford F-350 All
1976 Ford F-250 All
1973 Ford F-350 All
1975 Ford F-350 All
1974 Ford F-150 All
Page 1 of 3 21 Total Vehicles


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