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Wiring up trailer lights doesn’t need to be complicated. The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector plugs directly into the factory tail light connectors, so you don’t have to trace or splice any wires. It’s a clean setup that keeps your vehicle’s wiring intact while giving you a reliable 4-flat connection for running, turn, and brake lights.

Some vehicles need extra help powering trailer lights, and that’s where the powered converter comes in. It pulls power straight from the battery instead of the tail light circuit, keeping the vehicle’s electrical system protected and preventing overloads. The included fuse holder connects to the positive terminal to complete the circuit safely.
Loose or corroded connections are common causes of trailer light issues. This harness uses factory-style connectors that click firmly into place for a solid connection. The terminals match the vehicle side exactly, reducing the chance of bent pins or incomplete contact that could cause signal loss.
Once installed, the wiring stays out of sight behind panels with only the 4-flat connector exposed when you need it. It’s a neat, low-profile setup that looks factory and keeps wires protected from dirt and corrosion. When not towing, just stow the flat plug inside or near the hitch for quick access next time you hook up the trailer.
This will not affect how the tail lights on your vehicle operate.
Customer Satisfaction Score:
92% were satisfied with this product
8% of customers were not satisfied
Ratings & Reviews

Kevin S.
2/20/2018
Love your products. It is the only hitch I will purchase and your wiring kit was fantastic. I work at different campgrounds around the country, mainly east coast but I tell everyone about your products. Thanks for making products that actually fit and do what what consumers pay for. Love your stuff.
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Flash
11/1/2017
The hitch and wiring are still going strong! Ive had no issues at all.