Parts Needed to Fabricate Coiled 7-Way RV-Style Trailer Extension Cable

Question

Question:

I am looking for a 7 blade RV to 7 blade RV Trailer wiring flex cord. Do you have something like this. I could not find one.

asked by: Lloyd M

0

Expert Reply:

We do offer various lengths of 7-way RV-style trailer wiring extensions that are shown on the linked page. These all have a vehicle socket on one end and a trailer plug on the other, such as with part # TLW6048 from TorkLift. None of these extensions has a coiled-type cord as found on adapters like # HM47053.

However, I do have a solution for you, which is to use one of the available lengths of the WesBarg RV-style coiled cable to fabricate your cord. We offer their 6-foot # WG54006-043 and 12-foot coiled cord # WG54006-046. You'll just need to wire a 7-way vehicle socket on the other end using one of the items shown on the linked page, such as # HM48470. Be sure to match the wiring configuration by function, not by wire color.

For reference I have linked a photo of the usual function assignments for an RV-style 7-Way.

expert reply by: Adam R

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Answer 1

Stretching the 7-Way Trailer Connector #WG54006-043 to 6 feet isn&#39;t the best option for you. It&#39;ll reach 6 feet but the coils are fairly tight. I extended it easily to about 4 feet but beyond that it wanted to fight me.…

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Answer 2

Figuring out what color wire goes to what function is sometimes quite confusing. I have attached a diagram which covers both the most common wire colors designated for a seven pin trailer connector and a seven pin vehicle connector, referencing the…

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Answer 3

I attached two pictures for you to check out. One that shows the pin out functions for a standard 7-way and another that has a chart with all of the wire color functions of the 7-Way Molded Trailer End with 6&#39; Cable #54006-009 that you…

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Answer 4

On the Pollak 7-Circuit-Breaker Junction Box, #PK52249, the bar inside is just a mounting bracket for circuit breakers. You would connect power as needed to each circuit breaker. The bar was also designed to dissipate excess heat generated from the…

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Answer 5

The Bargman 7-Way, RV-Style Connector #WG54006-043 referenced in your question uses the standard RV-style pin locations for its 7-Way connector. I have attached a diagram of these locations and their functions for you to check out. Wire colors will…

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Answer 6

The battery on the trailer will not charge if it is attached to the 12V power wire from the towing vehicle. It will provide a small amount of current that helps maintain the current charge of the trailer battery. I recommend using a battery charger…

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Answer 7

You should not need any extra fuses. Trucks like the Dodge Ram 2500 are built for towing and should have enough power on those circuits. First I would wire the lights to the trailer and worry about the 6-Way last. I would wire the lights with the…

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Answer 8

7-Way connectors like the #A7WCB that you referenced should be wired by function and not color. Since trailer manufacturers can sometimes use non-standard color wires for the taillight functions of their trailer it is best just to determine the…

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Answer 9

The terminal posts in the Epicord 7-Way Molded Trailer Plug with Junction Box #277-000141 are indeed a 3/16-inch diameter. You can use ring terminal #44-5310A for connecting 10- and 12-gauge wires. For the lighter 14-gauge wiring use part…

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Answer 10

Thanks for the photo. Honestly 5 inches of clearance from the fender to the top of the tire is fine if that is what you desire. We normally recommend 4 inches to allow for the suspension travel whether with leaf springs or torsion axles to allow…

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Answer 11

Lance does have a proprietary plug, but many customers see a standard 6-way or 7-way round and notice it doesn't fit their factory 7-way as well. I've attached an article to help if you have one of the 7-way or 6-way round connectors…

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Answer 12

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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