To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
Getting trailer lights wired up doesn’t have to mean splicing wires or chasing color codes. This Curt T-Connector plugs right into the factory taillight connectors, giving you a 4-pole flat trailer connector without cutting into the vehicle wiring. It’s a direct fit that keeps the install neat and easy.
Trailer wiring can overload a vehicle’s light circuits if it’s not managed correctly. This harness includes a powered converter that draws power directly from the battery instead of the taillight circuits. That protects the vehicle electronics and gives the trailer lights a clean, consistent signal every time.
The 4-flat connector is the standard plug for most small and midsize trailers. It runs the running lights, turn signals, and brake lights so you’re fully visible and legal on the road. The connector is molded and weather-resistant for long-term durability.
Even if the vehicle didn’t come with a factory tow package, this harness makes it ready to pull a trailer with proper lighting. Everything needed to power the trailer lights is built into the harness, so you can add towing function without extra factory wiring or dealer parts.

Customer Satisfaction Score:
46% were satisfied with this product
54% of customers were not satisfied
Ratings & Reviews
Fast delivery and all required parts were included. Also no problem with my returning this item. (I ordered the wrong harness!)
Great product. And even better customer service. I had a delivery issue and Josh handled it quickly and followed up after delivery to make sure I was happy. Would definitely recommend etrailer to everyone. Just for the record I ordered 3 other harnesses from other company's before ordering from here and none worked properly.
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