Installing Trailer Light Bar that Has Black and White Wires

Question

Question:

I bought a new bar of lights for the back of my trailer the three in the middle it has a white and black wire but I only have one wire coming from the trailer how many am I supposed to have to hook up that light bar

asked by: Bill H

0

Expert Reply:

On your new light bar that features two wires like the Optronics # MCL922RB, the black wire should be for power, which will connect to the running light wire on the trailer. The white wire from the light bar will be for ground, which you will just need to attach to a clean, bare metal surface on the trailer frame.

expert reply by: Chris R

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Answer 1

Yes, because it is a 3-wire light, you can wire the Red Identification Light Bar with White LED Utility Light #OPT88FR to function as rear marker and reverse lights.

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Answer 2

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 3

The biggest difference between the servo styles that you'll notice is between free backing plates and the others. The free-backing plates will allow your trailer to back up without having the brakes lock up. With surge brakes typically when you…

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Answer 4

If it is a 1000 psi then it would be the Hydrastar for drum brakes. The newest one is #HBA-10 and it has different wire colors, see picture. So you know that black is 12 volt power in and white is the ground. Blue/white goes to the break away switch.…

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Answer 5

I attached a chart that has the automotive cross reference for the Kodiak disc brake pads part #K2250CP that you referenced under the yellow heading. Probably the easiest to look up would be 1982 to 1992 Chevy Cavalier.

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Answer 6

The Demco Hydraulic Brake Actuator part #DM72VR is a great option to replace an Atwood 82543. That said, it does not come with any sort of reverse lockout feature therefore in order to reverse without the brakes locking up you will either need to add…

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Answer 7

I did some checking and the hub/drum we offer that will work for you is the part #8-430-5UC3. This uses the same bearings as the 8-415 and will be an exact fit aside from the fact this is a non-ABS setup and the 8-415 came in an ABS setup and non-ABS…

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Answer 8

The TDE 46245 you have is a Hub and Rotor for a 3500lb axle and uses inner bearing #L68149 and outer bearing #L44649 and uses the 5 on 4-1/2" bolt pattern For a replacement idler hub you can use the Trailer Idler Hub Assembly for 3,500-lb E-Z…

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Installing Trailer Light Bar that Has Black and White Wires

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