7-Way Adapter Recommendation to Go From Semi Truck 7-Way to RV 7-Way

Question

Question:

Indeed an adapter that is a 7 way female round. Going to a 7 way. RV style female. . My rv. Has. Male. 7 way. Blade. And semi truck has. Male. 7 way. Pin. .. is there such an animal??..

asked by: Marc S

0

Expert Reply:

The part # HM47425 is designed to plug into a 7-way round connector like what your semi-truck has and provide you with a 7-way blade type connector for your RV 7-way.

expert reply by: Jameson C

0

Answer 1

If the trailer is one that is pulled by a motorcycle or a trailer designed to carry a motorcycle, you will need a converter in order to convert the wiring system used by the 6-Way to a 2 wire system used by trailer lights. The converter you can use…

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Answer 2

We do have converters that do separate out the combined brake light and turn signal but #TR118821 is not one of them. What you can use instead is tail light converter #118158 or #C56196. They both do the same thing. The white input wire is ground…

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Answer 3

This is a common question we get on lights like the LED Trailer Tail Light with License Bracket part #328-003-81LBM1. The original colors you have are the traditional trailer wiring code so brown=taillights, red=turn/brake and white is ground. On…

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Answer 4

The trailer connector used on most semi-tractors is a 7-pin round which is similar to a 7-way flat used on most RV's but the big difference between them is how the stop and turn signals are wired. The stop and turn signal circuits are separate on…

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Answer 5

The only pin that should be continuously showing 12V power on the 7-Way connector on your vehicle is the 12V power circuit which is normally the black wire but not always. In 7-way wiring the 12V auxiliary power feed is carried on the contact at the…

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Answer 6

I do have a potential option for you, but we do not have any kind of custom fit wiring harness that will connect to the plug in your picture. Since there isn't an adapter to go from a semi 7-Way to an RV 7-Way the best solution is going to be to…

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Answer 7

The part #HM47425 is designed to plug into a 7-way round connector like what your semi-truck has and provide you with a 7-way blade type connector for your RV 7-way.

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Answer 8

The 7-Way on a semi is not the same as a 7-Way round pin on other vehicles so that is why you are having a problem. If you do not need to tow a semi trailer then you can rewire the vehicle side 7-Way so that the proper circuits match up between it…

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Answer 9

Adapter #HM47425 is designed to work with a vehicle or RV style 7-Way round pin so it would not work with the semi style 7-Way for the exact reason you mentioned; the functions are different. You could install a separate 7-Way just for travel…

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Answer 10

If you are wanting to combine the brake light and turn signal circuits on the tow vehicle side trailer connector you can pretty much use any converter for that including #HM48925. On the input side the green wire will go to the right turn signal,…

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Answer 11

We do have exactly what you are needing to tow a trailer with the standard 7-Way blade with your commercial dump. To combine the turn/brake signals from your tow vehicle you simply need to use the Roadmaster Brite-Lite Wiring Converter #RM-732. After…

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Answer 12

Hello Juan, thanks for reaching out. There are a number of factors involved when converting a semi 7-way to an RV 7-way. Semis generally use a 7-pin round pin socket, similar to #PK11720. And RV style 7-way uses blades, like #PK12706. We do not offer…

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7-Way Adapter Recommendation to Go From Semi Truck 7-Way to RV 7-Way

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