Is Current EZ Connector Trailer Side 7-Way Compatible with Older Style Vehicle 7-Way

Updated 11/09/2026 | Published 11/07/2026

Question:

I purchased the ez connector and installed it on my trailer and camper van a couple of years ago. It came with a receptacleinch to mount to the trailer to hold the trailer end while stored. I keep it in a garage so I wasnt too concerned and didnt check it all winter. It got a little water in it somehow and as I didnt realize current could move from the battery to the plug, the water allowed current to flow from the + cord to the magnet and other parts of the plug and caused corrosion and the magnet rusted badly. I chatted with one of you guys and you educated me on the power back flowing from the trailer battery back to the plug. I realize now that I should have disconnected the battery. I was going to order a new trailer end, but a little sand paper and wire brush made it work just fine so I have been using it since as it was. Now I want to replace the trailer end and I noticed the newinch plug looks like it has been redesigned so that the center magnet is covered with something that looks plastic or whatever. My question is will the newly designed plug work with the old ez connector vehicle receiver on my camper van or will I have to replace both?. If it doesnt, do you have any of the old style trailer ends that I could order as the less wiring I have to do...the better. The photos show the plug and the trailer mounted storage thing. Thank you for your help.

asked by: Timothy J

EZ Connector Trailer Side
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EZ Connector
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Expert Reply:

Hey Timothy, welcome back! So I checked with EZ Connector and the newest design is backwards compatible with what you have now so you don't have to replace everything. You can just replace the part # 319-S7-07 and it will for sure work with your vehicle end connector. Aside from the corrosion issue how do you like the EZ Connector setup?

expert reply by: Jameson C