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Convert your vehicle's 4-way flat connection to a 7-way RV socket with this adapter harness. It supports lighting, trailer brakes, reverse lights, and auxiliary power, all in a compact 12" harness.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi everyone. Steven here with etrailer. Today we're taking a look at the RV Designer RV Socket Adapter Harness. It's gonna give you a four-way flat to a seven-way RV style adapter. So again, folks, you've got the four-way that will plug in and then you'll wire up these other four wires. And then at that point, you will have your seven-way RV socket that's gonna support tail lights, brake lights, reverse lights, turn signals, trailer brakes, and also auxiliary power as well.
It's a convenient 12 inch length, and as you saw, the dust cover here is included. It's spring loaded. The only thing you don't get is the hardware here to install this in place, whether it's on your bumper. We sell brackets separately that you can then attach to your bumper and keep it in a nice, secure location. Some vehicles already have this pre-cut out on the bumper and they may even have some hardware pre-installed.
So check what you have first before you make your purchase and get all those other accessories that you may need before you finish up that purchase to get it all shipped together for you. That's gonna wrap up our quick look together. I'm Steven, thanks for watching.
Customer Satisfaction Score:
96% were satisfied with this product
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Ratings & Reviews
Ground not connected, doesn't work.
Info for this part was:
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Kate F.
7/13/2026
I am very sorry to hear that Chirs. We will be reaching out. In future when you have an issue with an order please feel free to give our customer service a call so we can correct it faster, we have real live people here in Wentzville, MO ready to take your call =)