Third brake light 7-Way Interface plug-in T Harness - 300100
Fits most trucks with 7 way trailer plugs #300100
Will not fit 2020+ Chevy with the Smart Tow and Advanced trailering system
Except 2015 -2022 Ford F150, 2016-2022 F-250 and 2016-2022 Toyota Trucks (Tacoma and Tundra)
Save time and hassle with the 7-Way Interface Harness. Installation takes as little as 7 minutes and gives you the ability to maintain your 7-way connector functionality and OE vehicle wiring. The 7-Way connects quickly and easily, with no need for cutting or splicing of wires.
Frequently Asked Questions
Q: I understand how the seven way connects into the wiring behind the bumper, but my brake light on the camper has only two wires. How will those connect to the four way plug?
A: There are 2 different style connectors in the package a 6 pin for the Leer fuse box and a 4 pin for the rest of the brands. You will insert the wires into whichever connector you need to match your top
A: Yes, it does if it is newer than 2015
Q: Do you have wiring to hook up the topper power lock to factory tailgate power lock?
Easy to install and works well.
Perfect and easy
The harness adapter works, but was not long enough to reach the power distribution box inside the Leer 180 cap. I had to also use the included wiring in the plastic bag attached to the cap. Took considerable amount of time combining the 2 harnesses using heat shrink butt connectors and the correct size split loom, and routing the harness up behind the left side tail lamp assy. Its done now and working is what counts. In this case def not plug n play.
I recently installed a cap and needed power for third brake light and lights within the bed of the truck. This Harness was super easy to install and allowed constant 12 volts for the lighting to be operated by a switch. Highly recommend!!