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Do 4-Way Connectors Have a Power Wire

Question:

Which is the hot wire on a 4 prong plug for a trailer?

1

Helpful Expert Reply:

Trailer and vehicle 4-way connectors like you'll find with the 4-Way Flat Trailer Wiring Kit - Vehicle and Trailer Ends # HM48205 do not actually have a hot - or power - wire.

As you can see by the cut out I added of the linked help article on trailer wiring (which I highly recommend checking out), a 4-way will activate running lights, brake lights and turn signals.

I have added a link to our entire selection of trailer end 4-way connectors for you to take a look at.

click to enlarge
helpful expert reply by:
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Kyle S

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