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Towing setups can overload a vehicle’s wiring if not properly managed. This Curt 4-Way Flat Trailer Connector with Circuit Protected Powered Tail Light Converter shields your vehicle from overcurrent and overvoltage situations. The built-in powered converter pulls power directly from the battery instead of the lighting circuits, keeping sensitive electronics safe while delivering a steady signal to the trailer.
Many newer trailers use LED lights that draw much less current than old incandescent bulbs. This harness is designed to work with both LED and standard trailer lights without triggering false errors or low-power faults. It provides a clean, consistent signal so your running lights, turn signals, and brake lights all operate like they should.
You don’t have to worry about this converter draining your battery while parked. It only pulls power when a trailer is connected and the lights are active. That means you can leave it installed year-round without having to pull fuses or disconnect wires between towing trips.
A standard 4-flat connector gives you the essential lighting functions—running lights, turn signals, and brake lights—so you can tow safely and stay visible. Once spliced into your vehicle’s tail light circuits, it provides the reliable link needed for hauling small trailers, utility haulers, or cargo carriers.

Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
Ratings & Reviews

Peter
3/13/2023
Still working great. Absolutely no problems. Had to tap into the fine wires on my 2006 Nissan X-Trail near the spare tire. Also brought a higher gauge wire from the battery via a fuse in the engine compartment routed under the car. Highly recommended.
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Kenneth
8/26/2023
I installed this on my 2004 bmw325 and it was an easy install and it has worked great.