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This Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector plugs directly into the vehicle’s existing tail light wiring. There’s no need to cut or splice factory wires, which keeps the install quick and clean. The harness connects right behind the tail lights, so you spend less time running wires and more time towing.
The harness routes through existing grommet holes behind the tail lights. You can pull out each grommet, make a small slit, and pass the 4-way connector and green wire through without drilling new holes. Once re-seated, the grommets help seal out dirt and moisture and keep the wiring tucked neatly out of sight for a factory-style finish.
Built with a powered converter, this harness supplies the correct current to your trailer lights while protecting your vehicle wiring. It delivers the four standard lighting functions—green wire for right turn and brake, yellow for left turn and brake, brown for taillights or running lights, and white for ground—ensuring steady light operation during towing.
The 4-flat connector gives you everything needed for most small trailers—running lights, brake lights, and turn signals. Once installed, you can hook up the plug and hit the road knowing your trailer lighting is working properly with your vehicle’s system.
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
Ratings & Reviews
great product, easy to install!
great stuff, well planned
was the correct part I needed
Wiring harness was easy to install, and worked as advertised.
Great product , easy to install.
This was super easy to install. If I didnt have to run a hot from the Batt. it would have only taken 30 minutes.
Very simple instructions
as described fast shipping,
This was the 2nd hitch and wiring harness that I purchased from
Etrailer. I have already completed the instalation. Again every thing
fit perfect. Thanks again for a quality product
Leonard
I received the T Connector kit within just a couple of days from my order. I was very pleased with the speed of the shipment. I haven't installed the kit yet, but it looks fine and I anticipate it will mork great.
received the wiring harness quickly and it was in good condition waiting on a little warmer weather to install it
Good price and fast shipping. Product fixed what our local U-haul trailer shop couldn't figure out.
Instead of running the power line up to your battery, consider using the rear 12volt power source if you have one. My Transit was a Wagon version and did have one.
What a great product. Easy installation, watch a few vids on how to do it. Took me 1 hour to do it by myself with help of some Jack stands and Jack.
Perfect solution for our service van! Excellent product and easy to do!
This was an easy installation. I say that as someone who has experience with electrical wiring and hiding wires. I would say difficulty is about a 3 in the real world. The included instructions are good enough and photos are accurate.
The trailer wire harness assembly fit perfectly. Not confusing to install, either. It wouldn't work without connecting the converter to the battery so I had to connect that and string the wire along the frame all the way to the back to make it work right. No problems at all.
I was disappointed with this item, and expect more from Curt. Unlike the more expensive brand, there are no plug connections on the wires on the flat 4 so it won't fit through the driver side opening to pass to the passenger side. I had to cut the four wires and then butt connect on the underside of the vehicle. Had to make a trip to the auto parts store for heat shrink but connectors, and put in the extra time. Instructions were also lacking on where to feed the wires out of the taillight bucket. Decide if you have more time than money when thinking about purchasing this item.
Received my wiring harness along with my hidden hitch from Etrailer. Very happy with the yow assembly but the wiring harness was a little more difficult to install then I thought. On the 2010 Ford Trandit connect XLT right rear tail light assembly has no access point to run the harness thru so you have to remove the rear passenger side tire and fender well Caling to be able to drill a 1" hole thru the wall that access the tail light assembly. This is time consuming let along if you don't have a drill or large enough but to drill with them your screwed. Luckily I had the tools for the job. Another customer might not be so fortunate. I think some Ford Transits are different when it comes to the passenger side rear tail light assembly (rubber Grommet) access, others might have the access point so you don't have to spend 2 + hrs to install. All in all I'm very pleased how it turned out.
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