How to Order 7-Way Wiring to Get to Rear of Trailer

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Question:

I have a 14’ x 77” trailer frame with one axel with brakes. I have this part 7-Way Blade Trailer Wiring Harness - Molded Plug and the break away. I need a wiring harness from there back to brake lights, clearance lights. Do you have any? Thanks, Larry

asked by: Larry S

1

Helpful Expert Reply:

Hey Larry, we actually sell jacketed 7-way wiring with the part # DW04914-1 by the foot. This would allow you to have all of the 7-way circuits to the back of the trailer like you are needed. You would just need to order a quantity of this that you need in overall feet. So for example, if you need 20 feet just order a quantity of 20.

expert reply by: Jameson C

1

Larry S.

12/3/2025

Do you have a video to assist me with this project? Thanks, Larry

Reply

Jameson C.

12/3/2025

@LarryS We have videos for replacing 7-ways at the front of a trailer but we don't have anything oddly enough for from there to the rear of the trailer. Since every trailer is different though a video probably wouldn't be super helpful anyway.

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Answer 1

The best option we have that will fit your wheel and work well is the Lionshead tire part #LHWL101. The quality and construction of this tire is unmatched but I really like about it is the fact it has a 75 mph speed rating which is higher than most…

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Answer 2

Hey Larry, yes the Dexstar trailer wheel part #AM20440 that you referenced was designed to be used with lug nuts that have a 60 degree angle conical seal like the #DE55KR which I really like because they are solid stainless steel. That means they…

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Answer 3

Hey Larry, since trailer wheel and tires aren't normally balanced the Loadstar ST205/75D14 Bias Trailer Tire with 14" Black Wheel #AM3S451 are not either. Generally there's not much of an upside to having them balanced so to keep costs…

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Answer 4

Hey Keith, sorry for confusion but the TecNiq Round Side Marker Light #TN54TR that you referenced does not come with a grommet and you'd need that separately with the part #TN43TR.

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Answer 5

You have it right so far, the 4-way connector is just as you have stated. Remember that Yellow has a L in it so that is the left side brake/turn signal and green has a R in it so that is the right side brake/turn signal. The colors for wiring a 7-way…

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Answer 6

I recommend going with our Electric Trailer Brake Kit #AKEBRK-7-SA. This kit includes both the Left and Right hand assemblies, which come with identifying stickers, and are rated for 5.2K - 7K axles. I have attached a picture to demonstrate that they…

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Answer 7

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 8

Hey Bert, the Bargman 7-way kit part #BA68HR that you referenced has 10 gauge wire for the power and ground circuits which means at 12 volt it can handle 40 amps. What's the amp rating of the heaters you are looking at?

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Answer 9

According to my contact in the Tech Services department at Curt Manufacturing, the drop, or distance between the top of the mounting flange of the #14053 Class IV hitch and the top of the receiver tube is exactly 2 inches. You can see this in the…

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Answer 10

Great question, William! The Karrier ST225/75R15 #KE63KV is a KR35 while the Karrier ST225/75R15 #AM10303 is a KR03 according to Kenda. There is a slight variation in the tread pattern and from what Kenda says about them it looks like the KR03 is…

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Answer 11

Hey John. We have three different black 15" x5" Dexstar rims. I have listed them below: Dexstar Steel Spoke Trailer Wheel - 15" x 5" Rim - 5 on 4-1/2 - Black Powder Coat item #DEX54FR Dexstar Steel Mini Mod Trailer Wheel -…

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Answer 12

The closest pre-mounted wheel and tire we have to the #AM3S451 but with a radial tire instead is the Kenda Karrier ST205/75R14 Radial Trailer Tire with 14" Black Mod Wheel #AM32131 which has a radial tire and similar black powdercoated wheel.…

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How to Order 7-Way Wiring to Get to Rear of Trailer

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