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Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit

Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit

Item # RM-15267
Retail:$174.10
Our Price: $146.89
You Save: $27.21
Tow Bar Wiring

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Diode kit allows you to use your vehicle's tail lights and wiring system while preventing feedback from your RV. Wires 2-wire and 3-wire systems to operate as a combined lighting systems. Includes 7-wire to 6-wire Flexo-Coil electrical cord. Great Prices for the best tow bar wiring from Roadmaster. Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit part number RM-15267 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Roadmaster Tow Bar Wiring - RM-15267

  • Diode Kit
  • Splices into Vehicle Wiring
  • Tail Light Mount
  • Universal
  • Roadmaster

Diode kit allows you to use your vehicle's tail lights and wiring system while preventing feedback from your RV. Wires 2-wire and 3-wire systems to operate as a combined lighting systems. Includes 7-wire to 6-wire Flexo-Coil electrical cord.


Features:

  • Lets you wire your vehicle to accept your RV's tail, brake, and turn signal lights for flat towing
  • Wires towed car as combined system so that brake and turn signals travel along same wire
  • Prevents electrical feedback and the damage it can cause to your vehicle's electrical components
  • Diodes powder coated aluminum case is corrosion resistant and provides protection from the elements
  • Brake light relay (RM-88400 - sold separately) may be required if used with supplemental braking system
  • Flexo-Coil cord is resitant to water, oil, chemicals, and has silicone-injected plugs to prevent corrosion
  • Center pin on 6-Way plug wired to 12V power, there are two industry standards
  • Includes:
    • 4 Hy-Power diodes
    • 4-Wire harness
      • 27" Long
    • Wire connectors
    • Cable ties
    • 1 Ring terminal
    • 3' Long plastic loom
    • 8' Coiled cord
    • Vehicle mounting bracket
    • Socket
  • Made in the USA
  • Limited Lifetime Warranty


Specs:

  • Diode Max amperage: 85 amps
  • Diode Max voltage: 24 volts
  • Coiled cord max length: 8'
  • Coiled cord retracted length: 15"


Note: For applications that have separate lighting, this kit will cause your brake lights to function as both brake and turn signal lights. A wiring converter (118158 - sold separately) and 2 additional diodes (RM-792) will be needed if you want to retain separate turn and brake signals.


Separate vs. Combined Lighting Systems

Some automobiles operate on a 3-wire system, wherein the brake signal and the turn signals travel along different wires to illuminate different lights. (Typically, these vehicles have amber turn signals.) This is referred to as a "separate lighting system". When you hook up for flat towing using this kit, your towed car's lighting system will operate in a combined fashion regardless of whether it typically has combined or separate lighting. This means that the brake and turn signals sent by your RV to your towed car will be carried on a single wire. As a result, your car's brake lights will do the flashing for the turn signals. Your vehicle will still function as designed when not hooked up to your RV.


Diode Wiring Diagram


Diode Wiring Diagram


Diode Wiring Diagram


Diode Wiring Diagram

Do You Need a Brake Light Relay?

Because this kit wires your vehicle as a combined system, a brake light relay (RM-88400 - sold separately) may be required if you use a supplemental braking system with your towing setup. A supplemental braking system depresses the brake pedal in your towed car every time you apply the brakes in your RV. So, if your towed car's brake lights illuminate when the brake pedal is pressed and the engine is off - as is the case when towing - then you need to install a relay to ensure that the lights on your towed car always act in accordance with the signals sent by your RV via the wiring harness. Without a relay, the brake signal from your towed car will override the turn signal sent by your RV when you slow down to make turns, creating a potential hazard.



15267 Road Master Towed Car 4 Diodes RV Plug to 6-Wire Socket Flexo Coil Wiring Kit

Installation Details RM-15267 Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:


Customer Reviews

Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit - RM-15267

Average Customer Rating:  4.8 out of 5 stars   (1148 Customer Reviews)

Diode kit allows you to use your vehicle's tail lights and wiring system while preventing feedback from your RV. Wires 2-wire and 3-wire systems to operate as a combined lighting systems. Includes 7-wire to 6-wire Flexo-Coil electrical cord.

by:

My Roadmaster Sterling tow bar has a channel for the wiring kit to run through. the coiled wire is not easy to work with on this bar if you want it to run through the channel. 10 months into using it the 6 wire end disintegrated and had to be replaced. luckily we were camped right beside a Camping World.



by:

I have to say : E trailer always delivers !
This is exactly what ya need if you are adding a second vehicle or swapping your old system to a new rig. I could have gotten by without the plug but for the price decided I should get a spare.
Delivery was prompt and product was exactly as described.



by:

Installed as per video...I had a local car/truck accessory shop install mind as way too many facial screws for me to content with. $400 to have it done right.
(A little worried that if I get too close to a vehicle or wall that some damage my occur as cable connector and braking wiring sticks out 3-4 inches from front of car.) My older system was cleaner design across the front of the car.



by:
2009 Ram 2500

A bit of a learning curve for first time dyi on this type of thing. Key is to make sure you figure out what type of brake light systems you have. There are 2 types and 2 different wiring diagrams. Read directions thoroughly. Works well. 2009 dodge 2500 install



by:
2014 Chevrolet Spark

Very complete kit. My only problem mounting it in a 2014 Chevy Spark is the limited space for the diodes. After much trial and fitting I found a suitable location. See photo.



by:

Just wanted everyone to know, that after one year of owning and using the Roadmaster towing baseplate, and the wiring harness for my 2022 Ford Maverick, I have accumulated over 10,000 miles of trouble free towing behind my Motorhome. The folks at etrailer did a great job making sure I had the right parts and at a good price. Delivery of the parts was exactly the day it was promised. I highly recommend them when need these kind of parts. I really appreciated the great and friendly service!! Safe travels



by:
2014 GMC Sierra

great complete wiring kit for my 2014 gmc sierra 1500

Michael

2/2/2024

flawless



by:
Roadmaster

The roadmaster connection kit for our brake system on our toad has worked perfectly.



by:

Works as advertised. Installation takes some time but instructions were very good. No complaints.

Rob

12/14/2023

Still working fine.



by:
Ford Ranger

I really appreciate your quality of products, & knowledgeable people to get correct answers to questions. We recently traded our Jeep for a 2020 Ford Ranger. I wanted to get a clean looking wiring hookup to tow behind our motorhome. You guys were the first place I thought of! Really appreciate your vast stock of products, & knowledge to back it up! We live full time in our coach, & Etrailer has a great supply of items that could me in handy for our life style! Thank you!



by:
2011 Ford Edge

My 2023 Ranger taillights are very different than those shown in video. Three bulbs instead of one. Quality seems fine. Installed same product on a 2011 Edge, no issues in 2.5 years. Video for the Edge was much better than the videos for the 2023 Ranger.



by:

If you have a tow vehicle definitely need to invest in this kit. It makes connection so much faster and easier using your vehicles existing light to perform like trailer lights.



by:
Roadmaster

Unfortunately first set was defective from Roadmaster. Etrailer sent another set and return label which installed correctly, eTrailer was great to work with.



by:

It would be helpful for etrailer installation videos to detail the tail-lamp wiring for the vehicles they install these kits in.



by:

Ordering was easy, shipping was fast, appreciate having eTrailer as a resource for vehicle my towing. We had our tow bar and wiring installed by a professional.



by:

Product performing well, great customer service and installation videos

Mark

10/7/2023

The lighting harness is working well ,no issues after the first year.

Etrailer Expert

Mike L.

10/24/2023

@Mark We're glad to hear that your Roadmaster # RM-15267 wiring kit is working well for you!


by:

Good quality. I especially like all the videos made by etrailer on installation. I use this site primarily because of the great videos



by:
Roadmaster

Everything working as expected. Roadmaster Nighthawk and Evenbreak system flawless. Very satisfied



by:

Everything you need to successfully connect your tow vehicle lights.



by:

Parts arrived in a timely manner, everything there as explained to me when ordering the parts. It all worked as planned the hook up to the Santa Cruz and dolly for towing works great



by:

Was very helpful in helping us with what we would need to set up our vechile for flat towing



by:

We bought the wiring kit for our CR-V which we were getting ready to tow. the kit arrived timely and was as advertised. It was easy to install and worked well. Very pleased with this purchase and highly recommend this product.



by:
2013 Chevrolet Spark

The request for a review of this kit arrived slightly ahead of the kit, but since I installed the kit immediately, I can offer this review. Meh. The directions printed on two sheets of paper are pretty much useless, spending most of the space explaining the difference between having double-duty tail lights and having dedicated (yellow) turn signal lights. Duh!
There's plenty of wire to connect the rear lights to the front socket. Including a ring connector and self-tapping screw for the grounding wire is a neat touch. Glad I already own a crimping tool for making all the connections. The coiled cable for connecting the toad to the RV is robust, pretty stiff, but does the job for which it is intended very well. There are no directions as to how or where to install the bracket on which to mount the socket on the Toad, but the bracket which came with my draw bar worked just fine. Fitting the large diode blocks behind the tail light clusters was not easy as the diode blocks are pretty large. Not sure why they need such high capacity that they require large cooling plates, but I'm not an electronics engineer. If you know what you're doing, this is a pretty easy job. If you don't have the tools, supplies, and experience, it might not be that much fun.
eTrailer sells good stuff and Roadmaster has been in the business for a long time, so I have no worries about longevity or reliability. Oh yeah, the length of wire loom was a nice touch in case you don't want the "multi-colored wiring cable to show through you toad's grill." (really?)



by:

Dealing with eTrailer to purchase and install my own base plate made me feel like I had a team of experts at my disposal. The installation is not easy and not for everyone, but with the help of chat sessions and videos, I believe that most people with some good working knowledge of tools can get it done.



by:
2012 Ford Edge

I ordered this kit to get me a heavy duty coiled cable with room to use one input as a dedicated power supply from the bus to then be sent to the towed battery to keep it charged going down the road.
the diodes i chose not to use, as i have a hopkins plug and play kit on the way, that will marry up the 6 pin fitting
I just needed the cable with the 7 to 6 adapters, it was the best price for the need :)

Robert S.

2/22/2020

zero issues so far.


25
1149
Show More Reviews

See what our Experts say about this Roadmaster Tow Bar Wiring

  • Compatibility of Roadmaster Diode Wiring Kit # RM-15267 with 2018 Jeep JL Wrangler LED Tail Lights
    The Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 is compatible with the LED lights on your 2018 Jeep JL Wrangler Unlimited Sahara package. The LEDs will not change the wiring function of the diodes and will work just fine.
    view full answer...
  • Why Can't Supplemental Braking System be Powered From Towed Vehicle
    While that is a clever solution the reason you don't want to do that is because in the event of a disconnect on the highway the breakaway system designed to activate the towed vehicles brakes would lose power and the vehicle wouldn't stop like it needs to. So the short answer is it technically could work but would be dangerous and could hurt someone. This is why it's best to run it to the towed vehicle battery.
    view full answer...
  • Tow Bar Wiring Recommendation for 2007 Dodge Dakota
    For lighting you can use the diode kit, # RM-15267, and not have to worry about cutting into the taillight housing. This will splice into your taillight wiring to allow your tow vehicle to control the taillight assemblies of the towed vehicle. This comes with a round 6-way connector that you will install on the front of your towed vehicle and enough coiled wire to go from there to the RV. I attached an install video on a similar Dodge truck as yours for you to check out as well.
    view full answer...
  • How To Attach Brown Wire On Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit
    In regards to the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit part # RM-15267 which is a fit for a 2018 Jeep JL Wrangler Unlimited, you only need to splice the brown running light wire from the harness into one of the running light circuits on the vehicle. It does not matter if this is on the passenger side or driver side. There will then need to be a jumper wire run from the diode to the other side but an additional splice into the vehicle's running light circuit is not needed.
    view full answer...
  • Does Roadmaster Diode Tow Bar Wiring Kit RM-15267 Fit 2017 Ram 1500
    Yes the Roadmaster tow bar lighting kit part # RM-15267 that you referenced is compatible with the LED taillights of your 2017 Ram 1500.
    view full answer...
  • Recommended Wiring Kit for Flat Towing 2020 Ram 1500 Behind RV
    For your 2020 Ram 1500 I really like the Roadmaster Diode Flexo-Coil Wiring Kit # RM-15267, which includes everything you need to wire up the truck so that its tail lights accept the signal lights from the RV during travel. You will use it to tap into the tail light circuits on your Ram and it includes a 6-Way connector that gets mounted to the front bumper, along with enough coiled wiring to go from there to the 7-Way on the motorhome. I have attached a full installation video on the...
    view full answer...
  • Tow Bar Lighting Kit Recommendation for 2021 Jeep Wrangler
    For lighting you can use the diode kit, # RM-15267, and not have to worry about cutting into the taillight housing. This will splice into your taillight wiring to allow your tow vehicle to control the taillight assemblies of the towed vehicle. This comes with a round 6-way connector that you will install on the front of your towed vehicle and enough coiled wire to go from there to the RV. I attached an install video for this kit on a similar Wrangler for you to check out as well.
    view full answer...
  • Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit on 2004 Toyota Corolla
    It is not necessary to have LED bulbs to use the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit, # RM-15267.
    view full answer...
  • Flat Tow Lighting Recommendation for a 2016 Chevy Colorado
    I have a flat towing lighting solution for your 2016 Chevy Colorado, but at this time there aren't any that will install by plugging inline with the factory taillight connectors. For lighting you can use the diode kit, # RM-15267, and not have to worry about cutting into the taillight housing. This will splice into your taillight wiring to allow your tow vehicle to control the taillight assemblies of the towed vehicle. This comes with a round 6-way connector that you will install on the...
    view full answer...
  • Troubleshooting Invisibrake Install Where After Cruise Control Stopped Working
    Try checking to make sure the breakaway plunger is fully inserted. We've seen this exact problem before and the issue was fixed by pushing the plunger all the way in.
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  • Troubleshooting Running Lights not Working With Roadmaster Diode Flexo-Coil Wiring Kit
    What we have found when there is an issue with running lights but not other lights when installing the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 is that the problem is almost always due to an issue with the diodes. So if the wires are not properly routed with the diodes, or there is an issue where a wire was somehow crimped or damaged then the running lights would not work. You need to create a jumper wire and attach the diodes that way, which may have been the...
    view full answer...
    Image 1 for
  • How is the Diode with the Yellow Connector from the Kit RM-15267 Installed on a 1997 Jeep Wrangler
    The diode that comes with the yellow connector in the Flexo-Coil Wiring Kit # RM-15267 needs to be connected to the brown wire from the wiring harness. I have attached a photo from the directions for you to reference as well as an installation video on a 2014 Jeep Wrangler for you to check out.
    view full answer...
    Image 1 for
  • Troubleshooting Tail Lights not Working With Roadmaster Diode Flexo-Coil Wiring Kit
    If your running lights are not working with the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 but your turn signals are, the issue is likely the diodes. If the wires are not properly routed with the diodes, or there is some issue where a wire was somehow crimped or damaged then the running lights would not work. You need to create a jumper wire and attach the diodes that way, which may have been the problem so you should check to make sure you have your diodes properly...
    view full answer...
    Image 1 for Image 2 for
  • Recommended Wiring Harness to Flat Tow a 2018 Jeep Wrangler JL LED Lights
    The LED lights on your 2018 Jeep Wrangler JL use the same wiring harnesses available for incanescent lights. I've linked our selection for you. I like to recommend the diode kit, part # RM-15267, because it installs a 6-way at the front of the Jeep which may be handle for other functions. Depending on what braking system you're using you may need the additional function to maintain the Jeep's battery.
    view full answer...
  • Flat Tow Wiring Recommendation for a 1995 Jeep Wrangler
    For lighting you can use the diode kit, # RM-15267, and not have to worry about cutting into the taillight housing. This will splice into your taillight wiring to allow your tow vehicle to control the taillight assemblies of the towed vehicle. This comes with a round 6-way connector that you will install on the front of your towed vehicle and enough coiled wire to go from there to the RV. I attached a couple help articles on tow bar lighting for you to check out as well.
    view full answer...
  • Flat Towing Lighting Recommendation for a 1992 Geo Tracker
    For lighting you can use the diode kit, # RM-15267, and not have to worry about cutting into the taillight housing. This will splice into your taillight wiring to allow your tow vehicle to control the taillight assemblies of the towed vehicle. This comes with a round 6-way connector that you will install on the front of your towed vehicle and enough coiled wire to go from there to the RV. I also attached a link to all of our help articles on flat towing lighting as well.
    view full answer...
  • Does Roadmaster Diode Tow Bar Lighting Kits Activate Third Brake Light
    You did every thing correctly. The diode kit part # RM-15267 only ties into the taillight signals on either side of the vehicle and does not activate the third brake light.
    view full answer...
  • Recommended Tow Bar Wiring For A 2023 Chevy Colorado
    Yes we have just the thing. I recommend the Roadmaster diode kit # RM-15267. This will come with everything you need to wire to the vehicles tail lights, and to connect to the motorhome. You will mount a 6 pin plug on the front of the truck, and use the included coiled cable to connect the truck to your coach. I really like these kits because once it is installed you do not have to mess with it. You just plug in and go. I have linked our install video below. If you plan to install yourself...
    view full answer...
  • Tow Bar Wiring Kit Recommendation for 1996 GEO Tracker with Separate Turn Signals from Stoplights
    For lighting you can use the diode kit, # RM-15267, and not have to worry about cutting into the taillight housing. This will splice into your taillight wiring to allow your tow vehicle to control the taillight assemblies of the towed vehicle. This comes with a round 6-way connector that you will install on the front of your towed vehicle and enough coiled wire to go from there to the RV. This kit can be installed on vehicles like yours that have the stoplights and turn signals on the...
    view full answer...
    Image 1 for
  • Tow Bar Wiring Recommendation for 2018 Jeep Grand Cherokee Trailhawk
    For lighting for your 2018 Grand Cherokee Trailhawk you can use the diode kit, # RM-15267 as the Hopkins kit you mentioned does not fit your vehicle. This will splice into your taillight wiring to allow your tow vehicle to control the taillight assemblies of the towed vehicle. This comes with a round 6-way connector that you will install on the front of your towed vehicle and enough coiled wire to go from there to the RV. I attached an install video for this kit on a similar Grand Cherokee...
    view full answer...
  • Accessing Brake Pedal Area for Install of Roadmaster Diode Kit on 2022 Ford Maverick
    I found the part of the install video you mentioned for the install of the Roadmaster Diode kit part # RM-15267 on a Ford Maverick like your 2022 model. It's at the 20:40 mark and that area is just directly under the dash above where the brake pedal is. You should be able to get under there and see same area.
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    Image 1 for
  • Flat Towing a 2020 Jeep Wrangler JL and the Rear Clearance Lights Work, but Not the Tail Lights
    From the information I have, it looks like the rear clearance light and the rear tail light signals run through 2 different wires, so my guess is you have the diode installed on the clearance light wire instead of the running light/park lamp wire. From what I can tell this should be a dark blue wire on the tail light connector, but before cutting I strongly recommend using a circuit tester to test the dark blue wire first. If you are looking at the tail light connector, it should be the...
    view full answer...
  • Flat Towing Lighting Recommendation for a 2015 Chevy Sonic to Connect to RV 7-Way
    For lighting you can use the diode kit, # RM-15267, and not have to worry about cutting into the taillight housing. This will splice into your taillight wiring to allow your tow vehicle to control the taillight assemblies of the towed vehicle. This comes with a round 6-way connector that you will install on the front of your towed vehicle and enough coiled wire to go from there to the RV 7-way connector.
    view full answer...
  • Tow Bar Lighting Recommendation for a 1999 Chevy Tracker
    For tow bar lighting for your 1999 Chevy Tracker we have a solution, but not one that is a custom install like the TowDaddy that will plug inline with the vehicle taillights. For lighting you can use the diode kit, # RM-15267, and not have to worry about cutting into the taillight housing. This will splice into your taillight wiring to allow your tow vehicle to control the taillight assemblies of the towed vehicle. This comes with a round 6-way connector that you will install on the front...
    view full answer...

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