What's Needed to Rewire Trailer with 7-Way Wiring
Updated 09/08/2025 | Published 06/10/2025
Products Featured in This Question
Question:
Question per my 2008 Ramblin trailer. I am going to rewire the trailer with a round 7 point connector to my truck. Is there by chance, a complete wiring kit that is full length of the trailer with color coded wire?
asked by: Gary A
Expert Reply:
Hey Gary, so we don't have exactly what you are looking for but if most of the trailer wiring is in good shape you could use the etrailer junction box part # e99011 to add the 7-way to the trailer. Basically you'd match all of the wiring of your trailer to the correct posts of the junction box, mount the box on the trailer, and then run the 7-way to your tow vehicle.
Otherwise you could use the junction box as the starting point and then run the wires for each circuit from there as a way to make it nice and clean.
We also sell 7-way jacketed wire with the part # DK74FR which would make the rest of the wiring easy. It's sold by the foot so the quantity you'd need to order is the number of feet you'd need.
Product Page this Question was Asked From
etrailer Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- 7 Blade
- Plug and Lead
- etrailer
more information >
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on Trailer Wiring
Jameson C.
9/8/2025
Hey Gary, did you decide to use the junction box and 7-way jacketed wire for your trailer wiring project? I'd love to hear how it worked out for you, as it could give others confidence when upgrading their trailer wiring.