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  1. Flat Tow Wiring Harness
  2. Roadmaster
  3. Diode Kit
  4. Splices into Vehicle Wiring
  5. Universal
THIS ITEM IS NOT A FIT FOR
2002 Dodge Dakota

Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit for Variable Voltage LED Tail Lights

Item # RM63MR
Our Price: $204.94
Flat Tow Wiring Harness
Not Confirmed to Fit

2002 Dodge Dakota

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This complete kit includes everything you need to connect your RV's tail, brake, and turn signal lights to your vehicle with variable voltage lights while flat towing. 7-Wire to 6-wire cord and 6-way car-side socket included for easy hookup. 1-800-940-8924 to order Roadmaster flat tow wiring harness part number RM63MR or order online at etrailer.com. Free expert support on all Roadmaster products. Great prices and Fastest Shipping for Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit for Variable Voltage LED Tail Lights. Flat Tow Wiring Harness reviews from real customers.
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  • Reviews (15)
  • Q & A (0)
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Roadmaster Flat Tow Wiring Harness - RM63MR

  • Diode Kit
  • Splices into Vehicle Wiring
  • Roadmaster
  • Universal

This complete kit includes everything you need to connect your RV's tail, brake, and turn signal lights to your vehicle with variable voltage lights while flat towing. 7-Wire to 6-wire cord and 6-way car-side socket included for easy hookup.


Features:

  • Complete wiring kit lets you connect your RV's tail, brake, and turn signal lights to your towed car's lighting system
  • Smart diodes ensure that your variable voltage, LED tail lights function as they should while your car's being towed
    • Converts the 12V signal from your RV's wiring to a 9V signal so your tail lights work as intended
    • Prevents electrical feedback that can damage your vehicle's electrical components
  • 7-Wire to 6-wire Flexo-Coil adapter cord lets you easily run power from your motorhome to your towed vehicle
    • Expands out to 8' to prevent dragging and tangling
    • Resistant to water, oil, and chemicals and has silicone-injected plugs to prevent corrosion
  • 6-Way socket wires to harness and mounts on towed car with included bracket
  • Powder coated aluminum casing on diodes is corrosion resistant and provides protection from the elements
  • Kit includes 2 smart diodes, wiring harness, split loom, ring terminals, zip ties, 7-wire to 6-wire adapter cord, 6-way socket with mounting bracket, and 10' of 14-gauge wire
  • Brake light relay (RM-88400 - sold separately) may be required if used with supplemental braking system
  • Assembled in the USA


Specs:

  • Maximum amperage: 5 amps
  • Maximum voltage: 16 volts
  • Wiring harness length: 27'
  • 14-Gauge wire length: 10'
    • Maximum power rating: 60 volts
    • Operating temperature: 40 F to 176 F
  • Coiled cord max length: 8'
  • Coiled cord retracted length: 15"
  • Limited lifetime warranty


This complete smart diode wiring kit lets you connect your RV's tail, brake, and turn signal lights to your towed car's lighting system so that you'll have the signal lights necessary for flat towing your vehicle.


Because your vehicle has variable voltage tail lights, you cannot use a standard diode wiring kit to get these signal lights. If regular diodes are used on a vehicle that has variable voltage tail lights, the bulbs will light up as though the towed car is braking whenever the tail lights are on. In other words, there will be no difference between your vehicle's brake lights and running lights. This is because variable voltage tail lights use the same wire to power both the brake lights and tail lights. They do this by using a 12-volt signal for brake lights and a 9-volt signal for tail lights.


Smart diodes correctly modulate the 12-volt signal coming from your RV to activate only the intended circuit. The result is that your vehicle's tail lights will look and function as intended.


This wiring kit includes everything you need to hook up your motorhome's electrical to your towed car. It is designed to work with LED lights only. If your vehicle has incandescent lights, you'll need to use the smart diode kit designed for incandescent tail lights (RO94FR - sold separately) instead.


If your RV has separate tail light wiring, wherein the brake and turn signals run on separate wires, you'll need a wiring converter (RM-732 - sold separately) to complete this installation.


Smart Diode Wiring Diagram


152789 Roadmaster Wiring Kit with Smart Diodes for Variable Voltage LED Tail Lights

02427 14 Gauge Brown Primary Wire

146-7 Roadmaster 7-Wire to 6-Wire Flexo-Coil Kit

Installation Details RM63MR Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:


Customer Reviews

Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit for Variable Voltage LED Tail Lights - RM63MR

Average Customer Rating:  4.7 out of 5 stars   (15 Customer Reviews)

This complete kit includes everything you need to connect your RV's tail, brake, and turn signal lights to your vehicle with variable voltage lights while flat towing. 7-Wire to 6-wire cord and 6-way car-side socket included for easy hookup.

by:

This product was exactly as described, and worked well to hook up the taillights in our towed vehicle. Thanks



by:

You guys are excellent. What great service and follow up. I also know you'll be there to answer questions as I do the install



by:

Product works but is a bit flimsy. Also, the connectors are an unusual size, 3/8 vs 1/4 inch, making it harder to purchase replacements if needed.



by:
2022 Jeep Cherokee

4 conductor wire was to short. I did not waste any wire and it was 6’ to short.

Etrailer Expert

Jenny N.

7/3/2023

It is unusual that the wiring would come up short. Would you be able to send a picture? How long was the wiring that you received?



by:

Customer Service was excellent - 5 STARS. The smart diodes are another matter. They are very poorly made. Connections had to be taped together in for them to stay together. They are inferior, cheaply made and will not crimp. Your instructional video was very good.



by:

Great company with excellent service.



by:

Awesome company & awesome customer serv ice



by:
2022 Jeep Cherokee



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2024 Jeep Wrangler 4xe



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2024 Jeep Wrangler Unlimited



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2021 Chevrolet Silverado 3500


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See what our Experts say about this Roadmaster Flat Tow Wiring Harness

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    Hey Joe, I have the following component recommendations for your 2023 Jeep Grand Cherokee L Overland: Baseplate: Blue Ox Base Plate Kit # BLU68CR Tow Bar: Blue Ox Avail Non-Binding Tow Bar # BX7420, This will also include safety cables so you won't have to purchase them separately. Tow Bar Wiring Kit: Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267. This will splice into your factory wiring to display your motorhome's traffic signals through the tail lights of the...
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  • Availability of Roadmaster Tow Bar Lighting Kit for 2022 Jeep Cherokee Trailhawk
    Roadmaster has diode style tow bar lighting kits that fit your 2022 Jeep Cherokee Trailhawk like with the part # RM63MR but they do not list any of their bulb and socket kits as a fit due to space constraints in the housing of the light assemblies.
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  • Recommended Tow Bar Wiring Kit For A 2024 Jeep Wrangler
    We have exactly what you need. For flat tow wiring for a 2024 Jeep Wrangler I recommend the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267. This kit includes the coiled cable to connect to the RV 7-way, as well as a 6-pin round plug for the front of the jeep, and all of the wiring components you will need for the vehicle. It is important to note that the aforementioned Diode kit is not recommended for vehicles with the ParkSense proximity sensors; those models should...
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  • Parts Needed to Flat Tow 2024 Jeep Wrangler 4xe Behind 2023 F-350 With Truck Bed Camper
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  • Comparing Smart Diode Wiring Kits RM47ZR And RM63MR
    The Roadmaster Smart Diode Kits # RM47ZR and # RM63MR are quite similar in that they both contain the same smart diodes, and wiring components. The difference is that the # RM63MR also comes with a 6-pin round plug for the front of the vehicle, as well as a coiled cable to connect the towed vehicle to the Rv 7-way plug. So unless you already have a 7 to 6 coiled cable and a 6-pin socket laying around, we recommend getting the # RM63MR, as it will come with everything you will need to wire...
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  • Correct Tow Bar Wiring For 2022 Jeep Gladiator With LED Lights & ParkSense
    So a couple things here, as by blind spot indicators I believe you are referring to the ParkSense feature on your 2022 Jeep Gladiator. If so, you would not be able to use the Demco # DM9523010-54. The issue is that the brake and running lights will all be the same brightness with standard diodes. To avoid this, you'll need a Smart Diode kit from Roadmaster: - Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit for Variable Voltage LED Tail Lights # RM63MR The diodes in this kit convert...
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  • Recommended Flat Towing Components For A 2022 Jeep Gladiator
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  • Parts Needed to Flat Tow 2024 Jeep Wrangler 4xe
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    view full answer...
  • Recommended Flat Towing Components For A 2021 Jeep Wrangler Unlimited
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  • Best Flat Tow Wiring Kit for a 2023 Jeep Gladiator
    The (discontinued) Tekonsha Tail Light Isolating Diode System TR118821 is a reliable kit but it isn't what I would recommend for your 2023 Jeep Gladiator because there are similar kits that are easy to install or are built much better than this one. For something that's easier to install we have the Curt Custom Tail Light Wiring Kit # C96JR which tees in behind the tai lights, but if you wanted something you splice in then I recommend one of the following from Roadmaster, depending on...
    view full answer...


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