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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   (1157 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:
2011 Jeep Wrangler

The video instructions made this harness very easy to install (other than routing the wire to the back of the Jeep). Everything functions as it should. I'm very happy I went with this harness versus magnetic lighting.



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:

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:

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:
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:

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 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:

Project went as expected. I did purchase additional split loom from Harbor Freight to protect the wires from the front to the rear of my truck. It easily ran inside the frame rails!



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:

Very good quality components but not for the average do-it-yourselfer. Instructions are very generic, my motorhome has the Vansco VMM , so you better be 100% correct with your wiring or it could become very expensive. I paid a rv dealer to do the install. Works great.



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:
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:

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



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:

Everything you need to successfully connect your tow vehicle 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:
Roadmaster

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



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:
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
1157
Show More Reviews

See what our Experts say about this Roadmaster Tow Bar Wiring

  • 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 Wiring Kit Recommendation for 2011 Ford Ranger
    I am not sure what you are using for tow bar wiring on your 2011 Ford Ranger, but we have kits that are designed for exactly what you are looking for. 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...
    view full answer...
  • What Colors to Use to Install Roadmaster Diode Tow Bar Wiring Kit in 2021 Ford Ranger
    We actually had the chance to install a similar diode style tow bar wiring kit on a 2021 Ford Ranger just like yours and I attached the install video for it that shows all of the wiring connections. Right at the 15:15 mark is all of the connections identified. The red wire of the bundle is the stop and turn circuit for each side, black with white stripe is taillight circuit. This is the same for both sides of the vehicle.
    view full answer...
  • Tow Bar Lighting Recommendation for 2020 Ram 1500
    The best tow bar lighting solution we have for your 2020 Ram 1500 is the Roadmaster Diode Kit part # RM-15267. This splices a set of diodes into your taillight wiring so that your tow vehicle can easily activate them as you are towing the Ram. This kit also comes with all the needed wiring and connectors needed so you'd be set with just the one part number. I also attached an install video for this kit on a similar 2019 Ram 1500 for you to check out and guide you through the entire install.
    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...
  • 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 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...
  • Tow Bar Wiring Recommendation for 2016 Toyota RAV4
    We have a great tow bar wiring setup for your 2016 Toyota RAV4 but it's a universal style since there are no custom fit kits. 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...
    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 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...
  • Tow Bar Wiring Recommendation for 2017 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. None of the bulb and socket kits are a fit for your 2017 Jeep Wrangler. There is not enough room to...
    view full answer...
  • Can the Input on the RoadMaster Diodes be Reversed
    The input sides on the diodes of the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit part # RM-15267 can be switched so that the left side is for the towed vehicle and the right side is for the motorhome or vice versa, it doesn't matter. If you can tell me more about the issue you are having with the kit I may be able to offer additional advice for you. Please note that any time there is a wiring issue the first thing you should check is your grounds and by this I really mean remove...
    view full answer...
    Image 1 for Image 2 for
  • 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...
  • Will LED Tail Lights on 2018 Jeep JL Wrangler Unlimited Affect Install of Roadmaster Diode Kit
    The Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 will work perfectly on your 2018 Jeep JL Wrangler Unlimited and the vehicle's LED tail lights won't affect the install or function of the kit in any way. You will just follow the attached install instructions like normal. I have attached the mentioned installation video as well.
    view full answer...
  • Is there a 7-Way to 7-Way Tow Bar Wiring Set Up to Tow a 2014 Honda CR-V Behind an RV
    We do have the parts needed to go from a 7-Way on the RV to a 7-Way on the 2014 Honda CR-V. But you really don't see a 7-Way at the front of the toad on a flat towing set up because the vehicle doesn't need all those circuits. What I recommend for a complete kit is # RM-15267. This is a 7-Way to a 6-Way that includes the 6-Way for the front of the vehicle as well as the coiled cable, 4 diodes, wiring, and accessories for installation. I have included a link to a video showing an example...
    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.
    view full answer...
    Image 1 for
  • Flat Tow Wiring Recommendation for 2000 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. This is the best solution for your 2000 Dodge Dakota.
    view full answer...
  • Connecting Roadmaster Tow Bar Diode Wiring # RM-15267 to 2019 Ford F-150 Right Stop/Turn Circuit
    You only need to make one connection to the right stop/turn circuit of a vehicle like your 2019 Ford F-150 to install diode tow bar wiring like the Roadmaster Diode kit part # RM-15267. So in your situation where you have found a duplicate for the circuit you can just leave it be and use the other and you'll be set. I attached a link to the install video you referenced that shows this kit installed on a 2019 Ford F-150 as well.
    view full answer...
  • Can Diodes of Roadmaster Tow Bar Lighting Kit Install Further Away from Assemblies
    Yes, you certainly could install the diodes of the Roadmaster diode kit part # RM-15267 in the area you described. It doesn't make a difference if the diodes are closer or further away from the taillight assemblies so it would still function just as well.
    view full answer...

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