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Wiring up a trailer can be a hassle, but this harness keeps it simple. The CURT T-Connector plugs right into your vehicle’s existing tail light wiring. There’s no cutting, no splicing, and no guesswork. It gives you a ready-to-use 4-pole flat trailer connector that powers your trailer’s running, turn, and brake lights.
No one wants loose wires hanging out the back of their vehicle. With its hidden plug-and-lead layout, this harness routes neatly out of sight until you need it. When you’re not towing, the connector can be tucked away for a clean look that keeps everything protected from dirt and weather.
Once installed, the harness provides a solid 4-flat output that matches most light-duty trailers. It delivers consistent power to your trailer’s tail lights every time you hook up, so you get dependable visibility and signaling on the road.
If your vehicle didn’t come with towing wiring from the factory, this harness fills that gap. It connects directly at the vehicle end and requires no extra converters or modifications. That means you can add trailer lighting capability quickly and get back on the road with confidence.
Customer Satisfaction Score:
94% were satisfied with this product
6% of customers were not satisfied
Ratings & Reviews
Good kit, simple to install on a 2018 F iesta.
perfect fit
everything needed inclu ded
Product arrived in good condition.
simple and easy to install.
Fits exactly and indtalled in minutes.
Great product, exact fit, easy install!
was easy to install and works great
very easy install
so far so good very happy with my purchase
Great product. Quick and easy install with detailed instructions.
Very good product. Fast and easy installation.
The wiring kit was perfect for my car and easy to install.
The wiring hook-up was terrific. No more cutting and taping. Things snapped together easy and no guess work as to what wire had to be cut and spliced. I will never go back to the old way.
The harness fit perfectly and it works great.
This harness was designed just for this application and fit right pin. PLUG n PLAY.
Gone are the days of cutting and splicing, this went on exactly as expected, using the factory connections. I could not be more satisfied.
The harness arrived quickly, the instructions were easy to follow and it took about ten minutes to install. Very happy with this harness.
The wiring harness went so easy, for me no tools were needed. For me your site had the least expensive on the internet. Worked flawlessly. Thank you so much.
Part was as described. Easy installation. Only problem I had was the delivery. A week shipping from MO to WI. Not worth the lower price.
The product was as advertised and fit my car exactly. The order arrived in good shape and shipping was quick.
I will buy from etrailer again.
Works great, easy to following instructions. Do plan out how you are going to route the wires first.
Fast shipping and the product fit as intended. Thanks for the fast service and shipping.
I would give it 10 stars.
I am extremely satisfied. It was easy to install, and everything was included with the shipment. It shipped extremely fast. This is a great company to work with.
I really like the lighting. As we do not plan to use this hitch with lighting very often, most likely real often with our bike carrier, this was a perfect fit for us.
Seems to be very well constructed. And made of high quality steel.
You can’t miss with this one.

Mike
3/17/2024
Still going very strong. I would still rate this product at a 10 stars level. I am extremely impressed with this company. You can’t go wrong.
Do you have a question about this Custom Fit Vehicle Wiring?
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Paul
11/23/2018
Everything is working out fine. No problems to write about.