Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.
Running wiring down a full-length trailer can get messy fast. This 4-Way Wishbone Trailer Wiring Harness with 42" ground wire keeps things organized with a 40' lead that reaches both sides of the trailer without needing extra splices. Each function is already split between the left and right sides, so you can route the lines cleanly and avoid crossed or shorted signals.
When one side of your trailer light goes out, finding the problem can take time. The wishbone design gives each side its own running light wire, making it simple to isolate issues and test each circuit independently. It’s a straightforward setup that saves time when tracking down a bad connection or light.
Good grounding is key for consistent lighting signals. This harness includes a 42" ground wire that ties in close to the plug, keeping your ground solid where it matters most. That means fewer flickers, better contact, and dependable performance every trip.
Whether you’re replacing worn wiring or building a custom lighting setup, this splice-in harness works with standard 4-flat trailer connectors. The universal fit makes it easy to pair with existing plugs or new connectors, giving you flexibility for everything from small utility trailers to longer setups.
Customer Satisfaction Score:
99% were satisfied with this product
1% of customers were not satisfied
Ratings & Reviews
Richard
11/25/2022
Still perfect, glad I purchased it. Would do it again.
Do you have a question about this Trailer Wiring?
Info for this part was:
At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Terry
8/22/2022
Its been about a year and the harness is still working good.