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Adding trailer lights doesn’t have to be complicated. The Curt T-Connector plugs right into the factory tow package port to give you a clean 4-flat connector for your trailer. There’s no need to cut or splice wires since the factory plug is already in place—just connect it and you’re set.
This harness gives you everything you need to power your trailer’s running lights, turn signals, and brake lights through a standard 4-pole flat connector. It’s the base wiring you’ll use whether you’re towing a small utility trailer or setting up for a future 7-way upgrade.
When you’re ready to add electric brakes or charge a trailer battery, this harness makes it easy to expand. Plug it into an adapter like the ETBC7 or 37185 to step up from a 4-pole to a full 7-way connection without starting over or re-wiring your vehicle.
If your old 4-way connector is damaged or intermittent, this T-Connector restores full lighting function fast. The weather-sealed plug connects directly to the existing tow package wiring to bring back solid signals at the trailer plug with no guesswork about wire colors or routing.
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
Ratings & Reviews
Efficient!
Great product. Great service.
Exactly what I ordered got it 2 days earlier than predicted
perfect fit and a great price
pluck and play. A+
This connection is easy to replace and secure in place on your vehicle. Takes no more than 5 minutes to complete.
Very slow order fulfillment but well worth it. I will use them again. I'm getting original parts no need to do any cutting wires.
Works great. Very easy installation.
Fit perfect. Worked as planned. Great price, fast easy shipping.
The connector was easy to install and works great on my Toyota Sequoia.
Fits perfectly. Quick shipping.
fits like a charm, no messing, no fussing
Video was helpful, but even without it, no brainer installation
Product is as described and was also able to look up the Etrailer youtube video to make sure there were no surprises with installation. Excellent experience.
Clear instructions and the quality wiring kit had all the accessories needed (i.e. zip ties, plastic over, etc.). Clear photo's w/instruction made me pause and think...what a nice, simple, helpful idea. Would definitely order again from etrailer.com.
Fast Delivery. Great Communication!
Product fit perfectly!
Worked perfect in my 2001 Sequoia, trailer lights are nice and bright thanks to this replacement harness. Don’t forget to swab some dialectric grease in the connection point
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