Wiring Diagram to Replace HD 7-Way with Standard Blade 7-Way

Question

Question:

Hello, I’m trying to convert my trailer plug from a Pollak HD 7 pin plug to a flat blade style for my oem Ford truck plug. I’m confused on the wiring as I have no blue wire on the existing pollak plug for the trailer brakes. There are six wires on the trailer plug.

asked by: Rick W

0

Expert Reply:

It would be nice if trailer wiring always used the same colors to make replacing connectors super easy but a good portion of the time the wire colors are just whatever was most convenient at the time. So what I would recommend you do is wire by function instead using the diagram I attached as a guide.

expert reply by: Jameson C

0

7-Way Wiring Diagrams
(click to enlarge)

Answer 1

It's a wire color difference but not a function difference on the pins of the 7-way. The difference comes from the fact that the two different styles are representative of two different areas that uses trailers. Traditional is usually seen on…

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Answer 2

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 3

The Trailer Hub and Drum Assembly part #AKHD-545-35-K is the correct replacement for an AL-KO 7230. In regards to the braking assemblies, I suggest getting a new pair, the Electric Trailer Brake Kit part #AKEBRK-35-SA. This option will save you some…

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Answer 4

The amount of bow that's put into trailer axles like the #7359765 is based on about how much a trailer is typically going to weigh that has a 3,500 lb capacity. So there's a bit of approximation and obviously it can't be totally perfect…

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Answer 5

Sounds like you need to redo the wiring of the new 4-way completely. Typically, the green wire runs to the right turn/stop circuit, the yellow runs to the left turn/stop circuit, the brown wire runs to the taillights and the white is the ground that…

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Answer 6

My contact at Redline told me that the outside diameter of the Chrome Trim #SA1012ET would be right at 5/16 of an inch and the inner diameter 1/8 of an inch. He said the trim isn't a perfect circle so the dimensions fluctuate a little bit.…

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Answer 7

Dexter Nev-R-Lube Bearings such as the 50MM #31-71-3 referenced in your question do not have a specific maintenance or replacement schedule. These are pre-lubricated at the factory, which will make it resistant to contamination, and sealed for life…

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Answer 8

A 16 inch tire will not fit on a 16.5 inch wheel. You would either need to get new 16 inch wheels with the proper bolt pattern to match what the hubs require or to get your existing wheels you would need to go with 16.5 inch tires. You mentioned you…

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Wiring Diagram to Replace HD 7-Way with Standard Blade 7-Way

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