Trailer Hitch Plug Receptacle. I have not been able to find and have not. From doing some research on the internet.
The friendly trailer-hitch counterman points to the display of electrical connectors and suggests that if you can't get them working on your own, he can have a mechanic do it for you, first thing Monday morning. And the trailer plug on the back of your truck doesn't remotely match the one on the trailer. Get the most out of your trailer and towing setup with our curated assortment of trailer balls, covers, and ball mounts.
It is designed to reduce the possible injury caused by electric shock.
Connections can fail due to corrosion or metal fatigue.
Watertight plugs, connectors, and receptacles at AutomationDirect. I have not been able to find and have not. Rubber Trailer Hitch Receiver Cover /Universal Receiver Plug Tube Cap/Protective Cover.