Why is There a Wire Color Differnce Between 7 Way Traditional vs RV Standard

Question

Question:

Why is there a difference? I wired my truck for the Camper but now it doesnt work with my horse trailer or car hauler? Why isnt there an industry Standard? Thanks

asked by: Fred C

0

Expert Reply:

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 equipment, utility and cargo trailers. Whereas RV standard is for campers and travel trailers. They both basically started doing their own thing and are too stubborn to adopt the other side. HA!

A lot of it has to do with the fact that there are so many trailers already out there wired each way that if either changed it would still cause confusion.

expert reply by: Jameson C

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Answer 1

The only difference between 7-Way Utility and 7-Way RV is the color of the wires. The pin outs are the exact same so either would work just fine with the other. If you check out the picture I attached you'll see that the functions are all the…

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Answer 2

Yes, you can use the Chevy brake controller wiring harness with the P3 #90195 on your 2011 Chevy Silverado. On the brake controller the white wire is ground, black is 12 volt power into the controller, blue is output to the trailer brakes, and red is…

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Answer 3

If you still have the plunger end that goes in the break away switch, then you can simply insert the plunger back into the switch and that should cut off the power to the brakes on your trailer. If you no longer have the plunger, then you can either…

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Answer 4

Thanks for the picture of the trailer wiring connector you have. Based on that you are in need of a 7-way blade extension like the part #C56080 for a 7 foot long extension or part #HM20049 for an 8 foot long extension. Or if you are looking for…

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Answer 5

There is indeed a standard for the vehicle and trailer side 7-Way connectors in terms of pin/function location on the connector. The actual wire colors may differ between your 2013 Tundra and 2016 Suburban but the pin locations on the connector will…

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Answer 6

The torque requirements for leaf spring u-bolts depend on the diameter of the u-bolts that are being used. If the gross weight of your tandem axle trailer is 7,000 lbs, then you likely have two 3,500 lb axles. Typically 1/2 inch diameter u-bolts are…

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Answer 7

I've attached a wiring diagram for the 7-Way Molded Trailer Wire Connector #H20044, however there is no guide available to tell us the wire color functions on the trailer so you'll have to test each wire in order to determine its function. If…

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Answer 8

Hello Ben, thanks for reaching out. I went out to our warehouse and measured the Optronics LED Trailer Marker Light #OPT37KB. The mounting holes are 2" apart on center. The same is true for the red version part #OPT77KB. Reply below with any…

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Answer 9

While our typical 7-way extensions like the Curt Universal 5th Wheel/Gooseneck 7-Way Extension #C56080 are a straight cable you can make an extension with a coiled cable. We have the Bargman 7-Way, RV-Style Connector w/ 6' Long Coiled Cable…

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Answer 10

The difference between the Bargman 7-Way, RV-Style Connector w/ 6' Heavy Duty Insulated Cable - Trailer End #54006-057 and the 7-Way Molded Trailer End with 6' Cable - HD Blue Insulated #54006-009 is how the wires are color coded. The…

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Answer 11

It sounds like you need an extension with two 7-blades on it, but in order to do this you will need to get a plug and lead as well as a plug. So you will need the 7-Way Molded Trailer Wire Connector #H20043 (4 feet long) or the coiled Bargman…

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Answer 12

The Engager Trailer BreakAway Kit with Charger and Tester part #20099 is weather resistant but not waterproof. Which means that you would not be able to submerge the battery and box in water but it would withstand inclement weather. Ideally your best…

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Why is There a Wire Color Differnce Between 7 Way Traditional vs RV Standard

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