How to Wire Trailer Brake Magnets

Question

Question:

The trailer magnet has two white wires and backside of hub also two white wires. Does it matter which white wires are connected to in back of the hub? That is, can either wire from the magnet go to either wire in back of the hub? Thanks

asked by: Tom E

0

Expert Reply:

As long as one of the wires coming from the back of the hub is a ground and the other is a power, it does not matter which wire on the magnet goes to which wire from the back of the hub.

I have included a link to a video of a magnetic brake replacement video that may be helpful. It is for a different size brake, but you it shows the whole process.

expert reply by: Patrick B

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Answer 1

Hi Trip; it looks like you ended up replacing the pair with #K23-478-479 which was the right choice. Unfortunately, brands don't cross over with these 4,400 lb axles so Lippert isn't an option. The price is comparable for the pair of Lippert…

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Answer 2

Hey Greg, what you have is the Dexter 4,400 lb trailer axle hub like the part #8-407-5UC3-EZ. This comes with the needed replacement bearings and seals but it is not pre-installed and greased like some options. Due to how rare this hub is there…

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Answer 3

Hey Dan, as long as the outer bearing number you have now has an inner diameter of 1.25 inches like what comes with the #8-407-5UC3-EZ this will work for you. Do you have a 02475, 14125A, 15123, or a 387A? If so then it is same inner diameter and…

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Answer 4

You're correct. A 6 on 5-1/2 inch bolt pattern will have 6 lugs with a 5-1/2 inch bolt circle. That means that if you measure from the center of one bolt across the hub to center of the opposite bolt, that distance will be 5-1/2 inches. I'll…

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Answer 5

Keith, it appears so - but to be sure I'd recommend just confirming that your current brakes are 10" x 2 1/4", has a 4 bolt mounting flange, and all of the specs listed on the product page matches. If all that checks out, then yes the…

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Answer 6

By the time you add up the cost to replace the magnets and shoes on your trailer you are at the cost (or more) for all new assemblies plus you end up saving yourself the trouble of messing with trying to install all the components. For an exact…

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Answer 7

The left side is the driver side, right side is passenger side. On a trailer brake assembly like #23-105 the arm that the magnet is on points to the front of the trailer and the magnet always will be on the bottom. I have included a picture that…

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Answer 8

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 9

If you have a 7-Way on both your trailer and tow vehicle you will first want to make sure that you have a brake controller, like the Tekonsha Prodigy P3 #90195. A brake controller is what is used to send power from the tow vehicle and tells the…

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Answer 10

You can indeed test a trailer's electric drum brakes by directly applying +12V power from a fully-charged battery. You can apply this power to the hot contact on the trailer's plug (see photo please) or to an individual brake assembly's…

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Answer 11

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 12

The valve core can sometimes get stuck inside the valve stem due to corrosion build-up or being inserted incorrectly. This would then mean you could not put air in or take air out of the system. The good news is that this is pretty easy to fix and…

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How to Wire Trailer Brake Magnets

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