Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
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2027 Alfa Romeo Tonale
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2027 Alfa Romeo Tonale
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Wiring a trailer usually means guessing which wire goes where, but this harness skips all that. The Curt T-Connector plugs straight into the vehicle’s existing tail light connectors to give you a 4-flat trailer plug. There’s no need to cut or splice any wires. It’s a direct fit that keeps the factory wiring intact and lets you get the job done quickly.
The harness includes a powered converter that draws power directly from the vehicle battery instead of the tail light circuits. That setup keeps the vehicle wiring safe from overloads or shorts coming from the trailer. It’s the right design when you want reliable lighting without risking damage to your vehicle’s electrical system.
Once installed, the 4-flat connector provides running light, brake light, and turn signal functions for most small trailers. You can route it out near the hitch for quick hookup or keep it inside to protect it from dirt and corrosion. Either way, you’ll have a clean, dependable connection ready for towing.
With its plug-in connectors and clear wire routing path, installation is pretty straightforward. Most people can complete it in about an hour to an hour and a half. Once done, the harness is securely hidden out of sight, leaving only the trailer plug ready to use whenever you tow.
Customer Satisfaction Score:
99% were satisfied with this product
1% of customers were not satisfied
Ratings & Reviews
David
6/13/2023
Still going strong! No issues recently powering a covered UHaul trailer during rain storms.
Mike L.
9/6/2023
Michael
4/25/2024
works like a charm
Sierra K.
12/30/2021
I would route the power wire to the battery instead of using a fuse. Unless there is something plugged into the 4-way to draw power it will not drain the vehicles battery.
John
12/1/2022
I used a fuse splitter nothing it plugs into will draw close to 20A. Running it to the battery is quite difficult and hardly documented. Still works fine. I didnt follow directions on cutting a hole in the plastic bottom panel, I cut a flap instead and made clips to hold it against the bottom of the hitch, this keeps it cleaner and more aerodynamic. I added this for fun and a trailer cover for those who have access to a 3d printer:
Jim
1/3/2023
I have only had the opportunity to use it a few times, but no issues
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Ray K.
11/18/2020
It has been working flawlessly.