The OPT7 7-Pin to 4-Pin 4 Ft. Extension Adapter was purpose-built to allow for a seamless and virtually hidden install for all OPT7 Redline LED tailgates while still allowing any round 7-pin trailer accessory to b...

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Product Review

The OPT7 7-Pin to 4-Pin 4 Ft. Extension Adapter was purpose-built to allow for a seamless and virtually hidden install for all OPT7 Redline LED tailgates while still allowing any round 7-pin trailer accessory to be connected via the split 7-pin output connection.  

Connection Types:

1 x 4-Pin female trailer harness output connection (perfect for the full line of 4-Pin male input equipped OPT7 tailgates)

1 x 7-Pin male input to vehicle round 7-pin female output connection outlet

1 x 7-Pin male output harness (adds a 7-Pin output harness for all your future 7-pin trailer accessory connection needs)


POWER UP ANY TRAILER LIGHT: OPT7's Heavy-Duty 4AWG 7-Pin to 4-Pin connection allows for the clean transfer of the power you need when & how you need it!

OEM SPEC 7 & 4-PIN HARNESSES: OEM spec connections allow for the tightest and most secure fitment possible

READY FOR ALL WEATHER: Heavy-Duty PVC, dual-mechanism 7-pin wire security system & rust-resistant terminal construction enables stable electrical conductivity; combining the construction with a weatherproof cap, makes it READY for all road conditions

IDEAL FOR MOST TRUCK & TRAILERS: This dual way 4 way trailer adapter plug works fine with any factory OEM 7-way plug, suitable for Boat, RV, ATV, Chevrolet, Ford, Dodge, RAM, Toyota or GMC.

HASSLE-FREE SETUP: Easy to install; no wiring or splicing required, secure Plug-N-Play install for all round 7-pin equipped trailer accessories & equipment

SERVICE PROMISE: 1-Year Limited Warranty & life-time support team access



  • [DO NOT PURCHASE IF YOUR VEHICLE IS EQUIPPED WITH A TOW PACKAGE] This product will not work on newer pickup trucks that have a factory-installed trailer tow package or sensors. The only exceptions are the 2015–2025 Tacoma and Tundra, as well as the 2015–2021 Chevy Colorado and GMC Canyon.
  • [7-PIN CONNECTOR REQUIRED] Your truck must be equipped with a 7-way trailer connector. This product will not work with vehicles that have a 4-pin connector only.
  • [4-PIN CONNECTOR USE] The 4-pin flat trailer wiring can be used to connect trailer tail lights, brake lights, and turn signals. The 4-pin trailer wiring is popular on various trailers, adding versatile towing options for your vehicle. The reverse wire is not included with this harness. If you need a complete solution for your tailgate light bar, please search for "OPT7 REVERSE" to find a compatible harness.
  • [HASSEL-FREE SETUP] Easy to install. No cutting! No splicing! Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this vehicle socket. It features a tab on top for a better grip when plugging into your trailer or unplugging.
  • [WELL PROTECTED] The 16-gauge heavy-duty 43 inches wires come with pure copper trailering wires provide reliable power and a stable electrical connection. Heavy-Duty PVC, dual-mechanism 7-pin wire security system, and rust-resistant terminal construction enable stable electrical conductivity; combining the construction with a weatherproof cap makes it READY for all road conditions.

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