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Roadmaster Brite-Lite Wiring Converter

Roadmaster Brite-Lite Wiring Converter

Item # RM-732
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Tow Bar Wiring
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Lowest Prices for the best tow bar wiring from Roadmaster. Roadmaster Brite-Lite Wiring Converter part number RM-732 can be ordered online at or call 1-800-496-5010 for expert service.
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Roadmaster Tow Bar Wiring - RM-732

  • Tail Light Converter
  • Splices into Vehicle Wiring
  • Universal
  • Roadmaster

Roadmaster Brite-Lite Wiring Converter

The Brite-Lite converts a 3 wire electrical system on a towing vehicle to a 2-wire system on the towed vehicle. Three wire systems use a separate wire to carry the brake signal. Two wire systems have the brake and turn signals sent along the same wire. Lab tests have shown Brite-Lite makes turn signals 65% brighter and brake lights 25% brighter than other brands. Brite-Lite can help prevent rear-end collisions in heavy traffic or under adverse conditions. Heavy-duty aluminum heat sink design effectively dissipates heat and outlasts other brands.

Product Detail

732 Roadmaster Brite-Lite Wiring Converter

Installation Details RM-732 Installation instructions

Video of Roadmaster Brite-Lite Wiring Converter

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Roadmaster Brite-Lite Wiring Converter Review

Hi there, flat towers and heavy haulers. Today, we're going to be taking a look at Roadmaster's Brite-Lite, non-combination to combined relay box. Our Brite-Lite module is going to take non-combined lightings, like we have on our motorhome here. You can see that our turn signals are separate from our brake lights. There's an assistant inside holding down the brake pedal now to illuminate these lights, and we can see that these are lit up. The issue with having separate lights like this is that oftentimes, at your 7-way connector down at the back of your motorhome, the lighting's not going to work properly on whatever you're pulling behind it, because you'll have your left and right turn signals but when you hit the brakes, the brakes that signal that is sent back here is just illuminating these.And on your trailer, you get your brake lights through your turn signal wires; the left and the right turn signal wires also double as your left and right brake signal wires.

So, in order to get those outputs working properly on our 7-way, so that when we hit the brakes these lights will illuminate, but it's also going to send signals to both the left and right turn signals on our 7-way to illuminate the lights at the back of our trailer.We're now back here at our tail lights, and we've got a flat tow setup hooked up to it. And with the brake pedal being depressed in the motorhome, the light should come on here in the back using the diode wiring kit that we installed. Since we're not putting out brake signals on our turn signals, our independent left and right, we have no lights back here when the brakes are pressed. If I we're to turn on our turn signals, though, our turn signals do work properly. In order to get both turn signal and brake light functionality on your trailer, or your towed vehicle if you're flat towing, like we are fixing here, then you'll want to install a module like this that will break out your brake signal circuit from your motorhome and send it down your independent left and right turn signal wire, so we can have brake lights as well as turn signals.So we got our flat tow hooked up.

Our assistant is pressing the brakes on the inside and we can see the lights for the brakes on our motorhome are illuminated as well as the lights here at the back of our vehicle. They're working on both sides. So our box is working as it's supposed to. It's taken the single brake signal circuit and split it up into two, go into our lights on each side, down those respective turn signal wires for these.The Brite-Lite's not only great for your motorhomes that have non-combined lighting, but it'll work with any vehicle that has non combined lighting to where you need to combine those, so that way the lighting will work properly on whatever you're going to pull behind you, whether it be a trailer or your flat tow like here. And this is what our module looks like when it's installed.

It can really be placed just about anywhere on the vehicle, but I recommend putting it at the back, near your 7-pole connector, because it is wired in-line between both your left and right turn signals going back to your 7-way connector.You'll also need to have a brake signal circuit wired up to this module, so you will need either quick splices or butt connectors as well as some additional wiring to be able to tap into your existing brake signal circuit on your vehicle, and bring it over here to the module as well. You can get butt connectors, wiring, ring terminals, and everything else that you'll need to get this wired up and installed in your vehicle, here in And that completes our look at Roadmaster's Brite-Lite, non-combined to combined lighting relay box.

Customer Reviews

Roadmaster Brite-Lite Wiring Converter - RM-732

Average Customer Rating:  4.8 out of 5 stars   (73 Customer Reviews)


Product arrive reasonably fast. I installed it the same night it arrived and took me about 2 hours total (I like to work slow). So a bit of the back story:

I am customizing a 1992 Softail Custom. I basically chopped both fenders and deleted the center tail light. After some rewiring, I adapted the turn signals to run as tail lights as well. Nothing fancy, I simply ran an additional wire, socket and 140 size bulb to the turn signal assembly, seems crude but hey... it works, and the light housing is big enough to accommodate both bulbs. So now I had tail lights and turn signals but..... no brake lights.

The dilemma was that my brake light was wired to the center tail light which I deleted (It used a dual-filament bulb). Therefore, in order to make the turn signals work as brake lights as well I used the RM-732 to pull the brake light signal into the same bulb as the turn signals. The wiring is straight forward and the unit fits neatly on top of the battery under the seat. It's almost like they designed it for this bike. I'm very pleased with this purchase and I feel safer riding my bike now that my brake lights actually come on when I apply the brakes. Thank you e-trailer!


Works as expected, with no problems. I am happy with etrailer and their customer interactions. I installed a Roadmaster tow bar and brakes on my Honda CRV two years ago. I had a problem and they helped me solve it with a new brake light relay kit. All parts of the install on the toad and motorhome are functioning perfectly.

Not sure at the moment. Covid took a toll on our travels. Except for a brief trip of three days, we did not travel in 2020. However, I will note that all products worked as designed and lived up to all expectations on our three day mid summer trip.
Hyatt - 05/16/2021


Did the job perfectly!


Excellent product. Awesome help by e-trailer. Mounted the converted to frame under Freightliner bed and spliced into existing j-box. Works great. Perfect fit and should last a long time.




Using this on a dump truck. Second one I’ve had to put on this truck. Both have eventually failed. They appear to be sealed units. Brake lights have gone out on trailer side as well as one side blinker. Converting trailer to use the factory round pin.


For those of you that pull trailers with electric brakes behind both pick-ups and semi tractors this the converter that you will need to make the brake lights work when you are pulling with a semi. If the semi tractor needs to pull a mix of trailers you want to leave it with the 7 pin round and if the trailers with the 7 flat RV style plug needs to be used when a pick-up pulls it. With this converter and one each of the opposite plugs, you can build a adapter to use to get your brake lights working when pulling the lighter duty electric brake trailers with your semi tractor. Reasonably priced and high quality.


Excellent quality, great price and super easy to install


Works as advertised and easy to use! 2003 Winnebago journey/2014 Jeep Wrangler as the toad!


Wired up exactly as directions stated. Worked perfect on my single axle semi. Wire this converter inline to my gooseneck trailer plug on semi. Everything works perfect.


Installed the Brite-Lite RM-732 wiring converter on a 2006 Volvo semi truck in order to convert the trailer wiring circuit from three wire to two wire for towing smaller trailers for various construction equipment. The device works as described. Instead of only having one brake light wire and L/R turn I now have brake lights combined with the L/R turn signals. Very well constructed converter and helpful sales staff.


Works well everything is right


The C56196 Works flawlessly with LED lights on my trailer. I used the roadmaster 690 diode on each input wire. How ever I returned the RM-732 as it was a 3 to 2 wire and not a 2 to 3 wire.


Received the product in a timely manor and installed it. Every time I hooked the toad all the lights worked the proper way. I only towed with the Motorhome on several trips and I am looking forward to another traveling season.


Works great .Yes i would recommend .


I bought this product to connect my lights on my horse trailer to my 95 peterbilt. Wiring was a snap and within 20 minutes all my problems were solved! I highly recommend this product and HIGHLY HIGHLY RECOMMEND buying from!! I went to 3 local trailer dealers ( 2 of them are nationwide brand name manufacturers) and all of them had no clue to convert 3 wire light systems to a two wire. Within 5 minutes of looking on i ordered what I needed and it's history as they say!!!


This was just what I needed to go with the wiring package that came with my towing bracket. Your website made it very clear; what was needed and how to install it. Thanks!


My project was converting my 1972 Camaro rear two light system to a three light system from a 1978 Camaro donor wiring system. The original 1972 wiring was missing. Laura was the tech that helped me. She was very knowledgable and patient with me. The RM732 converter was very easy to install and did exactly what in needed for this project.

Kelley Bowin


Seems to work. Have not had trailer out yet. Had to run 2 extra wires from tow vehicle for separate turn system


Fast delivery and the product has worked flawlessly!


Excellant product, worked better than the Hoppi it replaced, now my lights work all the time rather than whenever.


We have a trailer repair shop in Troy Missouri and use etrailer for all of our parts


I wish the body of the connector was larger to help keep the outer cover inside so the wires are'nt exposed.

Thank you

Paul b.


Shipping was within a week. Buick Enclave Videos are a great help for installing the tow brackets and wiring.


The product was used on a sports car that was made with a separate turn light bulb then changed to a tail lights with one bulb for everything. This converter did the job so I now have tail, stop and turn lights on a duel filament bulb. Just installed it so do not know how long it will work. Delivery was on time. Tried one other brand prior to this which did not work. The packaging gives a phone number if there are any problems which good.


I ordered #rm 732 wiring converter for a job. Very easy process also talked to a sales person witch helped with other wiring questions. I recommend and will use again.

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