How to Tell if Trailer Has 6-Way or 7-Way Installed

Question

Question:

Hi guys, how can i tell what my trailer config is? I have a boat trailer with electric brakes, using a 6 pin round connector. I want to ensure that i order the correct adapter.

asked by: Jim

0

Expert Reply:

It sounds like you have a 7-way blade connector on your boat trailer as that is a very common connector on boat styles. This connector has 6 pins around the outside of the connector and a center pin for a total of 7.

Part # A7WCB would be what a 7-way would look like. If you had a 6-way it would look like part # PK11604.

expert reply by: Jameson C

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Answer 1

It sounds like you either have a blown fuse or a short on the right side turn light and brake light circuit. First, I recommend checking the trailer wire connector on the vehicle. You can use a circuit tester, like #PTW2993, to test that power is…

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Answer 2

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Answer 3

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Answer 4

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Answer 5

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Answer 6

Typically, the wire colors are brown for running lights, green for right turn and brake lights, and yellow for left turn and brake lights. White is ground. To confirm this on a trailer you can trace the wires back to see where they terminate or…

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Answer 7

I'd recommend using 10 gauge wire like part #10-2-1 (sold by the foot) for the brake power and ground wires as this will be more than adequate and will ensure you get plenty of amperage to activate the brakes.

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Answer 8

I think you are going in the right direction. I would definitely replace the 14 gauge wire going to the trailer brake magnets with 10 gauge wire or larger. Usually larger than 10 gauge is hard to get into the trailer connector though. I would also…

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Answer 9

For a wheel that is 5 inches in width and 15 inches in diameter you would want tires that are size ST205/75-15. For the tire size ST225/75R15 you listed you would want a rim that is from 6-7 inches in width. I attached a department page that has…

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Answer 10

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 11

The closest metric trailer tire size to a 4.80x12 is going to be a 145/80-12. The typical diameter of a 4.80x12 tire is 20.5 inches. On a 145/80-12, it is 21.3 inches. So the metric size will be a little over 1/4 inch taller. Make sure to measure…

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Answer 12

Since wire color codes are NOT universal, we always recommend wiring by function, rather than wire color. If you look at the Trailer Wiring FAQ article I have linked you to, you can see some diagrams showing the proper way to wire a vehicle and…

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How to Tell if Trailer Has 6-Way or 7-Way Installed

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