This adapter plugged right in to my square plug at the end of the wiring harness on the tongue. I worried about it being the correct plug initially because the picture on the website does not show exactly what the end is like. I put this on a 1999 Coleman pop up and it fit perfectly. It seems like it is a little short and could be 12’ longer. It does reach my plug just under the bumper but I worry about it coming unplugged when you corner because there is no slack. So far, it has not.
Store owner replied:
Thanks Tim for the good information! We have added more images of the plug ends on this product. Thanks for your purchases and feedback.