7-Way Trailer Connector Recommendation for a Boat Trailer with Electric Over Hydraulic Brakes

Question

Question:

I have surge disc brakes on my trailer and a Prodigy P2 controller in my truck. I have a adapter that goes from the 5 pin flat to the round connection in my bumper. Do you carry the round trailer wire that will replace my 5 pin flat that will connect to this EOH and also control the lights on my trailer?

asked by: Scott

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Expert Reply:

Yes, we have exactly what you need. To replace the 5-way you have on your boat trailer with a 7-way you will want the part # H20042.

I attached an install and review video for you to check out.

expert reply by: Jameson C

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Answer 1

I went out to the warehouse and grabbed a 7-Way Molded Trailer Wire Connector #H20046 to measure it for you. I used a set of digital calipers to get an accurate measurement. The diameter of the outer black sheath is 0.59 inches or 19/32 of an inch. A…

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Answer 2

I've linked a help article that will give you the common color coding but on your trailer I wouldn't go by it. Even if they are correct you just never know so I suggest testing it. To test it cut off the 5-way connector that's on there…

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Answer 3

I looked through our product offerings and was honestly surprised when I saw we didn't offer a cover for a trailer connector. Since the tape didn't work for you, have you considered using some of that Press'n Seal plastic wrap? You could…

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Answer 4

In regards to a wishbone trailer wiring harness, the two brown wires are for the running lights. The reason that there are two is because there is one for each side. The green wire (green/brown) is for the right stop/turn signal circuit and the…

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Answer 5

On a 7-Way trailer connector such as #H20046 the 12 volt wire would connect to any accessory that would need 12 volt power such as a trailer mounted battery or a jack in some cases. You usually do not see them on boat trailers. If you don't have…

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Answer 6

Yes, there is only one type of 7-way blade connector. I am attaching a help article about wiring that may be of interest to you.

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Answer 7

The great thing about trailer brake magnet wiring is that it's not polarity sensitive which means that either wire can be used as the power or the ground. So as long as one of the wires on your trailer is power for the brake output circuit and…

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Answer 8

Yes, the center pin on trailer side wiring harness #H20046 is for reverse lights on the trailer. For this particular harness it is the yellow wire. But it will only work if the center pin is functional on your 2012 Toyota Tacoma. If you have the…

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Answer 9

Your yellow/brown wire most likely ties into the brown running light wire. Typically, when a trailer has a green/brown wire and a yellow/brown wire, they are both used for the running light circuit. The green/brown wire is ran down the right side of…

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Answer 10

I am unable find any lights like these that have the 4 wires for attaching to the light. You should be able to test each of the wires for their function using a 12 volt battery and connecting the wires directly to the terminals. My only concern is…

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Answer 11

I attached a chart that details how the #H20046 would wire to your trailer's wiring. You will notice that the wire color column on the far right says "usual," this means the color codes are always specific. On your 5-way the jacketed…

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Answer 12

The diagram you attached shows a 7-way wired up in what is considered the "traditional way." If you check out the chart I attached you will see the three ways (really only 2), that a 7-way can be wired. The Featherlite is wired up like the…

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7-Way Trailer Connector Recommendation for a Boat Trailer with Electric Over Hydraulic Brakes

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