Replacement Parts for Optronics Identification Light Bar on Trucks and Trailers

Question

Question:

I bought this light a few years ago from you I have 2 out so your sell individual parts for them ?

asked by: Joseph F

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Expert Reply:

For the Identification Light Bar for Trucks and Trailers - Weatherproof - Incandescent # MC93RB you referenced we have both the Light Bar Replacement Wiring Harness MC93 and MC94 Series # A93PB and the Optronics Trailer Clearance and Side Marker Light - Submersible - Incandescent - Red Lens # A91RB. If you want the LED lights then you will use the Thinline LED Clearance and Side Marker Light - Submersible - 3 Diodes - Rectangle - Red # AL91RB.

expert reply by: Jason S

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Answer 1

For that I recommend using either a 14 or 16 gauge wire. Either will able to safely handle the amp load for the lights on your box truck. We offer the #DW02412-1 for a 14 gauge or the #16-1-1 for a 16 gauge wire. Both are sold by the foot.

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Answer 2

The Optronics LED Trailer Clearance Lights #MCL44RB that you will be installing on your trailer features a power and ground wire. The black wire coming from the assembly is for power and the white wire is for ground, which will just need to be…

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Answer 3

For your 2020 GMC Sierra 2500 HD, the Optronics Load Resister #ALEDRST2B will solve the issue. However, it is important to note that the #ALEDRST2B comes with a plug-in on the end. If you need the harness that allows you to hardwire it with your…

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Answer 4

Those are the wires for the brake magnets. You will need to connect the black wire to the brake controller output wire on your trailer connector and you are correct the white wire will need to be grounded to a clean metal surface on the trailer. I…

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Answer 5

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 6

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 7

Hey Richard, thanks for reaching out! The Dexter DX7.5 Drop-N-Go Brake Actuator #099-175-00 is a great option for a replacement actuator because it's a direct replacement for the common Model 60 actuators that were popular in the '90s.…

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Answer 8

To determine the size of the brake assemblies you need you have to measure the depth and width of the hub drum on the axle like what you see in the picture I attached. The most common size is 2-1/4 inch wide like the #T4071600-500 that you…

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Answer 9

Traditionally, trailer manufacturers did not use electric brakes on boat trailers because the brake magnet wiring and trailer wiring did not always have the best insulation or water protection. These days, more and more manufacturers are using…

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Answer 10

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 11

To find the load capacity for your axle you should look on the trailer VIN plate or sticker that lists the VIN number. The weight rating of the axle should be listed on that same plate or sticker. Also, the axle could have a tag or plate on it that…

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Answer 12

If your trailer has 7 wires running all the way back to the brakes, then yes, you can tap into the existing wiring. Each of your new brakes will have two wires for the brake magnet. One wire is for 12 volt power to the brake magnets and the other…

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