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Wiring up a trailer doesn’t have to mean cutting into factory wires. The Curt T-Connector Vehicle Wiring Harness with a 4-Pole Flat Trailer Connector plugs straight into existing vehicle connectors, giving you trailer lighting without tapping or slicing into the wiring. It’s a clean, straightforward install that keeps the factory setup intact.
The 4-flat connector gives you the standard lighting functions needed for towing—running lights, brake lights, and turn signals. It’s the most common style for small and midsize trailers and provides a reliable, weather-tight hook-up every time you hitch up.
Because this harness is designed with a direct plug-in layout and no converter, it delivers a simple electrical path between your vehicle and trailer. That means fewer components, fewer points of failure, and an easier install that still gets the job done right.
The plug-and-lead setup makes this harness friendly for weekend installers. Just connect the T-plugs on each side and route the 4-flat lead where you need it. It’s quick, hassle-free wiring that helps you get your trailer lights working in no time.
Customer Satisfaction Score:
99% were satisfied with this product
1% of customers were not satisfied
Ratings & Reviews
Easy to install
Perfect service
always great service, great price
Easy install, the directions were clear and concise.
Information about the product is great, and video tutorials better.
Awesome!
Awesome
Snapped right into my Infinity QX60.
Exceptional price, Nissan wanted over two hundred dollars. Watch the film, install time 20minutes, it’s that easy. Iam making etrailer my go to vendor.
This was as easy as it gets straight plug and play.
Received the hitch and wiring harness for my 2024 Pathfinder. Package arrived via UPS in good shape (no damage what so ever). I installed the hitch and wiring harness myself in one hour and 15 minutes. Everything fit perfectly. Not a hard install at all but I'm a gearhead with a lot of tools so it made the install easier. Would have definitely been easier with another set of hands but one person can do it.
Easy to install vehicle manfacture could to a better Job for placement of connections. Especially the relay connections. This was a install on a 2024 Nissan Pathfinder.
Great harness, think wire, very happy!
Easy to install
The installation went well Instructions were great Thank You
Easy to follow video made this easy to install
High quality hitch, with all you need to install and really does install in 30 minutes! Shipped quickly, arrived in perfect condition and customer service checked in make sure all was good. Great product, price and company!
When off with out a hitch,ha ha
This harness was plug and play no splicing nothing.
Easy installation. Found a video specifically for my suv online. Suggest you also purchase the mounting bracket.
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Paul
7/30/2025
Hitch has remained in great shape and continues to work flawlessly.