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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Speaker 1: Today we're going to take a look at the Demco 7-foot long 7-way to 4-way trailer connector adapter. Now, this adapter will run power from your motor home to the towed vehicle using the 7-way here and the 4-way round connector. It is a coiled cord so it stretches up to seven feet in length, prevents the wires from dragging on the ground and the cord will contract for storage. It is designed to withstand the elements. It is a vinyl-coated wire. They use silicone-injected plugs.
This part will include everything here on the table; the coiled cable, the two female connectors, the 7-way and the 4-way round and the one 4-way male connector plug and a nice set of detailed instructions. Extended length on this again is seven feet. But that should do it for the review on the Demco 7-foot long 7-way to 4-way trailer connector adapter.
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
Ratings & Reviews
Works exactly as intended
Have had issues with this cable not saying clamped on the end and chafing on the wires doing down the road. Don't really see a way to fix that as the connections are sealed. Best bet would be to undo the connection and put some shrink on it.
Great product
Works fine.
Got what I ordered, was very happy
Doesn't fit
Great service
As always, years of experience in dealing with etrailer another satisfaction notch thanks.
Working great!!!
No issue with the harness
worked perfect
Mark
8/12/2025
Nice product, quality assembly
Excellent service and very timely ship out. Received the correct cord as described.
This connector works as intended. The only improvement that I would suggest is that the blue wire sleeve to connectors be more secure. The coil in the line is so strong that over time the wire sleeve has pulled out of the smaller connector. I now have to figure out how to stretch it so that I can slide it back in place and more securely tighten it. I'm afraid that the wires themselves my eventually pull loose from the connector.
Bob
6/11/2025
Great
Info for this part was:
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Brooke M.
5/9/2025
Gosh, I'm sorry to hear that! Would you want to email me with a few photos of what you're seeing to be able to figure why it's not working for you?