Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
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2017 Ram ProMaster 2500
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2017 Ram ProMaster 2500
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Wiring up trailer lights can be tricky if you need to cut into factory wires. The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector solves that problem with a plug-in design. It connects directly to existing vehicle plugs, giving you a secure fit without any splicing or wire tracing.
This harness is made for easy, do-it-yourself installs. Every connector is designed to match the vehicle’s factory wiring, so it’s a clean plug-and-play job. You just route the included power wire how you prefer, connect it to the battery, and you’re ready to tow. No special tools or extra parts required.
Once installed, the 4-pole flat connector gives you the basic lighting functions your trailer needs—running lights, turn signals, and brake lights. It’s the standard connection used on small and mid-size trailers, so you can hook up and tow confidently knowing your lights will work as expected.
The built-in powered converter keeps the vehicle’s sensitive electrical system isolated from the trailer wiring. That means you get reliable lighting performance while protecting the vehicle's circuitry from overload or feedback issues that can happen with direct-tap systems.
If your vehicle didn’t come with a tow package, this harness makes it easy to add one. It provides all the wiring you need for trailer lighting through a simple plug-in setup. That makes it perfect for vehicles that weren’t originally wired for towing but need a safe, dependable connection for light-duty trailers.
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
Ratings & Reviews
Dustyd
1/16/2018
I dont use it often, but its been absolutely dependable
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Richard
1/16/2023
1 yr update. So far so good. No wiringlighting problems with my utility trailer. No problems with my cars lightswiring either. Everything seems A-OK.