Solution to Go from 7-Way Blade to 4-Way Round Trailer Wiring

Question

Question:

I am looking for an adapter from my 7 way trailer plug to a 4 way round trailer plug. thanks

asked by: Paul

1

Helpful Expert Reply:

Since there isn't an adapter available to convert the 4-way to a 7-way your best option would be to cut off the 4-way and wire it to a 7-way connector like part # A7WCB. This way your trailer will not require an adapter and everything would work.

expert reply by: Jameson C

1

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Answer 1

Yes, 7-Way Round RV Style Trailer Connector #A7WCB will fit into the 7-Way on your 2015 Chevy Silverado. I have included a video showing an example installation for you and a link to our help article on trailer wiring.

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Answer 2

The problem that you are going to run into no matter what 7-Way you want to put on your trailer is that the color of the wires used is not standardized. Trailer manufacturers or people who rewire their trailers at any point can use any color they…

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Answer 3

The best solution for your situation would be to use a circuit tester, like part #PTW2993, to wire your trailer wires to a seven-way trailer connector, like part #A7WCB. Wiring by function is the best way to make sure you have the trailer connector…

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Answer 4

The 40-amp circuit on your 7-way is really intended for delivering only a modest current to maintain an already-charged trailer battery while you're driving. It is not really intended for operating a power-hungry item such as a winch. A safer…

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Answer 5

Sounds like you are looking for the #A7WCB which matches the part number and description you mentioned. This is a replacement trailer side 7-way plug.

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Answer 6

Lithium batteries require a higher voltage to charge than standard batteries which means you can't charge one directly from the 7-way 12 volt accessory circuit you mentioned. You could if you used the Redarc In-Vehicle BCDC Battery Charger…

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Answer 7

Yes, we have a few options for a 7 way to 4 way flat trailer connection. One option if you don't need an extension is the Hopkins Adapter 7 Pole to 4 Pole with Tester and Cover, #47345. This adapter has an LED tester internally to allow you to…

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Answer 8

I would love to help you upgrade the suspension on your Twilight 2800 travel trailer. The MORryde Rubber Equalizers for Tandem Axle Trailers #MR87ZR that you referenced are a great solution but we do need to double check a few things. First is that…

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Answer 9

I've never heard of an actual third brake light connector on a camper shell to plug in on a truck and we don't carry any parts to do that. The light generally needs to be hardwired into the truck's brake light circuit. The issue with this…

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Answer 10

I did some checking and the hub/drum we offer that will work for you is the part #8-430-5UC3. This uses the same bearings as the 8-415 and will be an exact fit aside from the fact this is a non-ABS setup and the 8-415 came in an ABS setup and non-ABS…

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Answer 11

The only way you could power interior dome lights on a trailer without it being connected to a tow vehicle would be to power the lights with a battery like a breakaway battery. How you choose to wire up the batteries will in the end be up to you, but…

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Answer 12

Since Demco uses 3,500 drum brake assemblies part #DMSB24429M and #DMSB24428M what you'd need is similar 3,500 electric brake assemblies like the etrailer part #AKEBRK-35L-SA for the left hand side and #AKEBRK-35R-SA for the right hand side. To…

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Solution to Go from 7-Way Blade to 4-Way Round Trailer Wiring

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