This adapter plugs into your 7-way round socket on one end and connects to a 4-way flat harness on the other.
California residents: click here
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hello, everybody. This is Jeff at etrailer. Today we're gonna take a look at this Roadmaster 7-way round to a 4-way flat adapter. Now, switching between trailers that have different connectors doesn't have to mean swapping cords or modifying your wiring. This adapter here will convert your 7-way round blade vehicle socket to this 4-way flat plug so that you can tow small utility boat or cargo trailers that use a basic 4-pin setup. This adapter's gonna maintain the basic lighting functions like the running lights, turn signals, and brake lights, so your trailer will stay visible and road legal.
Again, there's no splicing, soldering, or extra wiring needed. All you have to do is just plug this adapter into your existing 7-way socket and you're ready to connect your trailer's 4-way flat to this end right here. It is built for a nice quick use. Perfect for times when you need to hook up and go without any hassle. And it's a nice handy piece to keep in your glove box for whenever you need a quick connection to a different type of style of trailer.
Now, everything connects through the solid contacts that give reliable power transfer every time you plug it in. Now, if you do have any other additional questions regarding this part or any other item that we carry, please feel free to reach out to us so we can help you get all of your questions answered for you. But that should do it for a look at this Roadmaster 7-way round to 4-way flat adapter.
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.






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.