Can 5-Way Trailer Wiring Connector be Used with Trailer Brakes

Question

Question:

Can a 5 pin flat plug be used in a trailer with regular brakes

asked by: Ray M

0

Expert Reply:

Yes, a 5-way trailer connector can be used with trailer brakes. You'd have to make the 5th circuit of the 5-way the brake output circuit and you'd be set. Normally this is used for a reverse light circuit for a reverse lockout circuit but if you wired it up to be a brake output circuit it would work perfectly fine.

expert reply by: Jameson C

0

Chad

2/29/2024

Hi. My boat gas surge brakes that utilize the 5th pin, reverse override. I’m looking to buy a box trailer with electric brakes, with a 7 pin, round. Can I use a 5flat to 7 round adapter to engage the electrical brakes on my trailer? Or, do I have to change something on my vehicle side to engage this? If so, what? And If I do this, would I then lose my surge override for my boat? Thank you.

Reply

Jameson C.

2/29/2024

@Chad If your 7-way has all of it's circuits active the reverse light circuit is there and would allow you to simply plug in a 7-way to 5-way like the part # A57WB and the reverse lockout of your surge actuator would engage like it needs to. If the circuit is not active you'd just need to run the center pin of the 7-way to your reverse light circuit.

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Donald

8/4/2025

So if I wire the brakes to the reverse lights I would loss my reverse lights correct?

Reply

Jameson C.

8/4/2025

@Donald Yes if you were to use the reverse light circuit instead for the brake output circuit you would lose reverse lights. Also I should have mentioned this in first answer on this page that normally the reverse light circuit doesn't have a thick enough gauge wire for what trailer brakes require as they normally need 10 gauge.

Reply

Answer 1

In order to actuate the trailer brakes, you'd need a brake controller installed in the vehicle and a 6 or 7-way trailer connector. A 4 pole flat wiring harness like the #18002 you'd looked at carries 4 circuits- right turn/brake lamp, left…

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Answer 2

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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Answer 3

You most likely have a blown/missing fuse or relay. The owner's manual copy I found online doesn't include a fuse diagram, but I found a diagram elsewhere showing that the fuses in location 32 and 38 and relays G, H, M, R13 and R14 all…

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Answer 4

A lot of trailer lights have 3 wires. One wire for running lights, one wire for turn signal and brake lights, and one wire for ground. Check the back of the light assemblies because it might indicate the functions of the wires. Other lights may only…

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Answer 5

Finding information on the Tie Down 46250 was not an easy task as it was discontinued awhile back. From what I could find, it looks like the calipers marked 46250 often times have to change the mounting bracket and rotor/hub in addition to the…

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Answer 6

A standard 5-way like the part #HM47910 would work great to replace what you have. You'd just run all of the white wires that you have (all three) to the single white wire of this connector, both the brown wires to the single brown of the…

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Answer 7

The pipe diameter the ##PLR558-105 is designed to fit is 1-5/16 inch.

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Answer 8

Coupler #CA5100B measures 9-1/4 inches wide at the widest part. I have included a picture showing some dimensions for you. For coupler #CA5400 is measures 11 inches wide at the widest point. I have included links to the video reviews of these…

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Answer 9

Hey John, since you have a UFP A-60 surge coupler we have just the inner member with the part #DX39FR or if you want the entire replacement coupler/actuator you'd instead want the part #DX63FR. Both of these are designed for 2 inch hitch balls as…

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Answer 10

According to Lippert that is a 6,000 lb hub and drum assembly with a 6 on 5-1/2 bolt pattern using #25580 inner and #15123 outer bearings. You do not need to use a replacement part from the same manufacturer so for a replacement you can use the…

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Answer 11

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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Answer 12

The Curt Spectrum Trailer Brake Controller #C51170 can be absolutely be used with your Harley pulling a small trailer for your pups (and in the process making your wife happy). Normally with a motorcycle you want to use a time-delayed controller but…

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Can 5-Way Trailer Wiring Connector be Used with Trailer Brakes

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