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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
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Retail:$226.64
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Tow Bar Wiring

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RM-15267 - Diode Kit Roadmaster 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. Lowest 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 800-298-1624 for expert service.
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Roadmaster Tow Bar Wiring - RM-15267

  • Diode Kit
  • Splices into Vehicle Wiring
  • Universal
  • Tail Light Mount
  • 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 - 27' long
    • 4-Wire harness
    • 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 Reviews

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

Average Customer Rating:  4.8 out of 5 stars   (557 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.

- RM-15267
by:

The wiring kit was perfect and everything you need is there. I would have rated it a five, except that the multi-colored length of wire that comes with the kit was just barely--and I mean just barely--long enough for my application. If I had cut the ends even a quarter-of-an-inch shorter I would not have had enough wire to complete the job without splicing additional wire in. My only complaint is that the length of wire that comes in the kit is for small or short cars only. This is the second wiring kit that I bought. The first one was a coupe of years ago and was for a Ford F-150 pickup. In that application the wire was not long enough to run from the front of the pickup to the rear and I had to splice extra wire in to make it work. As long as you know that up front, then the rest of the wiring kit works great and the directions are very good.


Comments
No problems after one year. The contact points are not corroded and everything works great.
Alton & - 01/11/2022


- RM-15267
by:
2016 Entegra Coach Aspire Motorhome

The wiring kit was mostly OK. They claimed the wiring supplied was 27' long, however, what I received wasn't even 20' long. I had to made a splice on all wiring leads near the front of the bumper. The diodes and rest of the kit worked as described. Upon testing, there were no issues when hooked up to my rig. I also added the brake light relay and wired it through the supplied harness as well.


Comments
I reached out to Roadmaster and they confirmed the wiring with the kit is 27 inches.
-- Etrailer Expert Thomas M - 12/20/2021


- RM-15267
by:

The wiring kit was installed on a 2020 Jeep JL Sport S. I really appreciate the ordering process and quick shipping of etrailer. The Roadmaster 7-6 wire cable is heavy duty and the coiled design keeps it from dragging on the ground. On the etrailer website there is there is a Q&A segment that has a flowchart to see if you need a brake light relay kit. It states that if you get a brake light with the ignition off you need the kit. I finally learned that the Jeep JL goes to sleep about 5 minutes after the ignition is turned off- so you do not have to use a brake light kit on the Jeep JL.


Comments
We pulled the Jeep several times this year. Installing and removing the cabling was quick and easy. The wiring kit worked well with the brake lights and turn signals working like they should. Installation was made easier after watching the videos
Bryce - 10/23/2021


- RM-15267
by:
Jeep

We have towed our Jeep almost 2,000 miles since installing the recommended parts from etrailer and it has worked perfectly on every connect and disconnect along the way. Tows beautifully, even at 70 mph. Excellent customer service and helpful videos from these folks. Would recommend to anyone needing help with parts and guidance in towing their toad to give them a call.


Comments
Our system is still working perfectly a year later. Our Jeep is a 2018 Cherokee Trailhawk and while we’ve seen some RV forums talk about “death wobble”, we have never experienced this using these Roadmaster products towbar & baseplate. We tow the Jeep with our 39’ Class A gasser and hardly know its back there. Even on sharp corners the Jeep follows perfectly and no binding. Connecting or disconnecting takes maybe 5 – 7 minutes. Then check all of our lights, make sure the Jeep is in neutral wbrakes off and we’re on our way. The braking system that we installed purchased from etrailer is the “Stay-n-Play Duo”. I would recommend that to anyone looking for easy operation. The installation time was a bit lengthy and involved but once completed makes all of your towing trips much easier. Just the flip of a switch and the braking system is ready for towing. No portable unit to lug around and adjust each time you tow your vehicle. The etrailer folks made the perfect recommendations for our needs and everything has worked GREAT!
Brent T - 04/05/2020



- RM-15267
by:

My project on 2021 Ford Ranger includes the tow bar, base plates, wiring harness, supplemental brake system with break- away switch and rv brake warning and brake relay. Every component is the highest quality, fit perfectly and works exactly as it should. The written instructions were very good for this complex assembly but the saving grace was all the excellent instructional videos detailing the work. One of the box’s damaged in shipping was missing parts that were quickly replaced in just a few days. Great products and great support.



- RM-15267
by:

Installing this kit, after watching the [online] video etrailer/Roadmaster tow bar wiring kit installation was so well explained that anyone should be able to do it....



- RM-15267
by:

We visited 10 states this year towing our Colorado. The harness and wiring has worked perfectly.



- RM-15267
by:
2021 Jeep Wrangler

As a product development engineer, i know the challenges in designing aftermarket products that perform to expectations and are competitively priced. The five Roadmaster products that I’ve purchased and installed have been very well thought out, manufactured without defects, fit with OEM chassis has been excellent, packed and shipped without damage to the items and priced reasonably. Specifically, these items are a Falcon 2 tow bar, base plates for a 2017 Fiat 500 and a 2021 Jeep Rubicon, and their associated brake & stop light wiring kits.



- RM-15267
by:
Ford F-250 Super Duty

This was easy to install and it works very well. I installed it on a Ford 2021 F250 pick up. The pick up does have the separate brake and turn signals, so you need to wire it as such. I would recommend this kit.



- RM-15267
by:

Not only are the products and pricing great, the customer service is top notch. etrailer follows up on orders, and has knowledgeable staff to help with technical issues.



- RM-15267
by:

Easy kit to follow and install



- RM-15267
by:
Jeep

etrailer provided very good service. They were responsive to my issue, sent out a return for the parts, inspected everything and replaced what needed to be changed. I'm very pleased with the service we've received and their system has worked well for us in flat towing our jeep...



- RM-15267
by:
2018 Jeep JL Wrangler Unlimited

Received my kit and everything I needed was in the box. I did all things according to the excellent video that I watched numerous times. It paid off, because installation was a breeze. It took me about 21/2 hours from start to finish, 1/12 hours to run the wire through various places in order to keep it away from any moving parts beneath the under carriage and partially through the frame. Hooked up the passenger rear taillight first. Brown wire running from passenger side was a little short so I took an old piece of spare wire and spliced it into the brown wire. I used a shrink wrap making sure I had a good solid connection.it was very easy and something I thought I could never accomplish, but it turned out very well. The man in the video and how he walked you through the whole process, I felt it was doable. Thanks to good instructors and step by step videos, this install was very easy. Thanks etrailer for another good lesson and product. Thanks-John


Comments
Still working like it did when it was first installed. One of the best investment I ever made for towing my jeep behind my motor home, and knowing my lights on my jeep are working and making other drivers aware of my stopping and turning. Thanks etrailer for a good product.
John - 06/19/2021


- RM-15267
by:

Packaged well, complete and delivered on time. Thank you etrailer, it’s always a pleasure ordering from you.


Comments
Still working just as expected. Holding up very well.
DLM - 12/03/2021


- RM-15267
by:
2014 Honda CR-V

Good wiring kit EXCEPT THE FOUR WIRES RUNNING THE LENGTH OF THE VEHICLE ARE TOO SHORT! This is even mentioned in your video for a Honda CR V!!! The CR V is one of most common toads out there. Why hasn’t this been remedied? I had to spend an additional $xx. Plus the time to get more wire. Would have gotten 5stars except for this issue. I’ve installed several of these kits on other shorter vehicles without issue.



- RM-15267
by:

Kit had all the necessary parts to do the job and was easy to install. It is somewhat difficult to plug the cable into the tow vehicle end. Frequently it fails to stay in when testing for a solid connection.



- RM-15267
by:

The video had some good tips. I opt to run the wiring inside the passenger compartment. Which was a lot easier than I thought it would be. I also ran the wiring in some plastic loom to protect it.



- RM-15267
by:

First time using etrailer and I couldn't be happier. Competively priced, shipped immediately after ordering and arrived in tact and as promised. etrailer has a new customer with me. Also, the videos and written instructions have been invaluable.


Comments
Still working fine
Toby D - 08/22/2021


- RM-15267
by:
2016 Jeep Wrangler

Towbar wiring system arrived within 4 days of placing my order. This 7 to 6 wire system is an upgrade to the simpler 4 wire plugs I've used in the past and will allow me to add on a battery charge line or brake system later on. The demonstration video was indispensable in hooking up the wiring and diodes. Though running and connecting the wiring does take longer than a 10 minute video. Now I can tow my 2016 Jeep Wrangler behind my RV.



- RM-15267
by:

The body shop installed this base plate and a hitch to carry a bicycle rack on my 2019 Fiesta for less than $[XXX]. Hookup to the Falcon tow bars is easy, as well as unhooking. No issues so far. The base plate is nearly invisible while not towing



- RM-15267
by:

I had to upgrade as I traded 2011 Jeep for a 2020 Jeep All is working well


Comments
Working well had Jeep dealer install
Richard - 12/07/2021


- RM-15267
by:
2021 Ford Bronco

INCREDIBLE. What is wrong with this company? One item in my order was on back order with the manufacturer so they called me and asked if I wanted the other items of my shipment to be shipped and the manufacturer would ship directly to me when it was available. I called them back with a concern after a couple of days and Craig communicated with me via email and actually took time to call me to inform the manufacturer actually had my item in stock and it was already shipped. If more companies would learn from etrailer on how to provide customer service, this world be a much better place. THANK YOU



- RM-15267
by:

Kit was installed by hitching post on Ocala Florida. The installation has been a success. I really like the diodes for compatable wiring. Towed about 4 thousand miles in my Ram and feel confident that it will go many more.



- RM-15267
by:

Works good. My only issue is that the coiled cord from the tow vehicle to the rv gets weak in certain spots and sags.



- RM-15267
by:

As advertised. Complete and good quality. Nice to have multiple etrailer install videos for reference. Good product. Good company.


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Show More Reviews

Ask the Experts about this Roadmaster Tow Bar Wiring

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    To wire up your 2020 Jeep Wrangler so that it accepts the signal lights from your RV I highly recommend the Roadmaster Diode Flexo-Coil Wiring Kit # RM-15267. This will tap into the tail light circuits of the Jeep and provide you with a 6-Way to mount at the front, along with enough coiled wiring to go from there to the 7-Way on the motorhome. The included diodes prevent any potentially harmful feedback. I have attached an installation video on an earlier model Wrangler that you can...
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  • Flat Tow Wiring Needed For 2020 Jeep Wrangler
    The best option for flat tow wiring on the 2020 Jeep Wrangler is Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit part # RM-15267. This will provide a 6-Way round harness on the front of the Jeep Wrangler that you can to your RV with the included flexible coiled cable. If you are planning on using a supplemental braking system, you will need a stop light switch kit part # RM-751490 which will alert you when the Wranger's brakes are being applied while flat towing. To complete...
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  • Can I Purchase Roadmaster Diode Kit Without The Coiled Adapter
    Yes, if you do not need the 7-way to 6-way coiled adapter cord you can purchase Diode Kit and wiring part # RM-152 and vehicle side 6-way plug part # RM-910030-7. This 6-way plug is the same plug that comes with the kit # RM-15267. The Diode kit part # RM-152 comes with 4 diodes and 30 feet of 4-wire. It also comes with the connectors, zip ties, 1 ring terminal and plastic loom to wire the vehicle for lights while flat towing. I have attached an installation video of the diode kit in...
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    Since you have the # DM9511008 tow bar, # DM9519336 base plates and # SM99242 Delta Force braking system covered, you'll only need a couple of other items to complete your flat towing setup. You'll need a wiring harness so the Jeep's taillights operate in conjunction with those of the motorhome, a stop lamp switch and possibly a high/low adapter if the installed height of the base plates has a height difference of greater than 3 inches compared to the motorhome's receiver height. For...
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    The RoadMaster Falcon 2 and Falcon All-Terrain Combo Towing Kit # RM-9243-1 was designed as a combo kit to be purchased along with Roadmaster Falcon Towbars like # RM-520. The Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 is a more 'universal' kit that focuses on giving you a 7-wire to 6-wire harness no matter what tow bar you have. The main difference is the Falcon Kit # RM-9243-1 has 8,000 lb capacity safety cables and extra tow bar accessories, while the Diode Kit...
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    Your situation is a very common one and the solution you proposed is the easiest and most popular solution. Like you mentioned you'd be wiring up the separate taillights to function like combined ones. You'd need a total of 4 diodes which we have that as a 4 pack with part # RM-794. I attached the correct diagram you'd need to use for your application.
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  • Tow Bar Wiring For A 2021 Sahara Unlimited
    The tow bar wiring for your 2021 Jeep Wrangler Unlimited will require Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit Item # RM-15267. If the brake lights were to override the turn signals you would use a relay however, I have found in most cases on the new Jeeps, they will fall asleep after about 15 minutes, Since you cannot tap into the factory brake wires on the Jeep, depending on the braking system you are using, it will require the Roadmaster Stop Light Switch Kit Item #...
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    That's a good question but a wiring converter is not needed to install the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 on your 2015 Mini Cooper. Since it has separate lighting and your motorhome has combined lighting you can add Tail Light Converter # 118158 if you want to retain your Mini's separate turn and brake signals but it isn't a requirement. In regards to the airline you will run the vacuum line of the SMI Stay-IN-Play DUO Supplemental Braking System...
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  • Brake Light Relay to Allow Turn Signals of Flat Towed 2019 Wrangler to Work with Brakes Applied
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  • Is Brake Lite Relay Needed When Installing Tow Bar Lighting in 2018 Jeep JK Wrangler
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  • Difference in Tow Bar Wiring Kits for 2017 Ford Explorer
    I'm glad to hear that you are doing your research when it comes to flat towing your 2017 Ford Explorer, there are several components needed and it can be a lot to figure out. The main difference between Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 and the Tow Ready Tail Light Isolating Diode System with 4-Pole Connector # TR118821 is how they install, and what is included. The # RM-15267 kit comes with 4 separate diodes, 27' of wire, connectors, a 6 way plug to...
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  • Recommended Tow Bar Wiring For Flat Towing 2021 Jeep Wrangler Unlimited
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  • Correct brake/tail light kit for an 2020 Equinox Premier with LED lights and using a Nighthawk towba
    The # RM-15267 is what Roadmaster recommends for a 2020 Chevy Equinox Premier. Unfortunately, Roadmaster doesn't offer a diode kit for your Equinox that doesn't include the cord. However, since the cords can get damaged by road debris, having a spare isn't the worst idea in the world.
    view full answer...

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