To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
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This harness is built for trucks that already have a factory tow package connection. It plugs right into the existing ports on the frame rail, so there’s no need to cut or splice wires. The 7-way trailer connector is ready to go once it’s snapped in, making it a clean and simple upgrade for towing setups.
The kit comes with the necessary fuses and relays to power key trailer functions like electric brakes, battery charge, and reverse lights. Once installed, it provides a full 7-way connection with all the standard circuits active—running lights, turn signals, brake lights, ground, 12-volt power, brake output, and backup signal.
If your truck already has a working 4-way flat, this harness doesn’t take that away—you can keep using it for simpler trailers. The setup supports both connectors so you can tow a variety of trailers without switching wiring each time.
Whether you’re adding a proportional or time-delay brake controller, this harness gives you the necessary 7-way to tie everything together. It pairs easily with plug-in controller harnesses that connect under the dash, so adding brake control is quick and tidy.
The 7-blade connector gives you a tight, weather-resistant connection that stands up to repeated plugging and unplugging. It’s designed for factory-level durability, protecting your trailer wiring from corrosion and keeping power delivery consistent trip after trip.
Customer Satisfaction Score:
91% were satisfied with this product
9% of customers were not satisfied
Ratings & Reviews

Jgm
10/2/2018
Product still working as expected. No issues.

Ken
6/12/2014
Still working great. Thanks.

Daveb
3/25/2015
Great product one year old still works like a charm

Scott O.
10/27/2020
Still works great ??

Bryan
11/10/2018
No problems
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Nicholas
11/15/2020
Awesome no issues after a year