bing tracking image
  1. Tow Bar Wiring
  2. Roadmaster
  3. Diode Kit
  4. Splices into Vehicle Wiring
  5. Universal
Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit for Variable Voltage Incandescent Tail Lights

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

Item # RM26FR
lowest price pledge
Our Price: $243.80
Tow Bar Wiring

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

This item qualifies for Free Shipping
Shipping Weight: 5 lbs
Quantity: 
Roadmaster Tow Bar Wiring - RM26FR
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Need help with installation?
Locate installers near me
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. Lowest Prices for the best tow bar wiring from Roadmaster. Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit for Variable Voltage Incandescent Tail Lights part number RM26FR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (10)
  • Q & A (0)
  • Photos
  • Why etrailer?

Roadmaster Tow Bar Wiring - RM26FR

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

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, incandescent 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 incandescent lights only. If your vehicle has LEDs, you'll need to use the smart diode kit designed for LED tail lights (RM38FR - 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


153782 Roadmaster Wiring Kit w Smart Diodes for Incandescent Bulbs

02427 14-Gauge Brown Primary Wire

146-7 Roadmaster Adapter 7 to 6 Wire Flexo-Coil Cord

Installation Details RM26FR Installation instructions

This Product Fits The Following Vehicles





Customer Reviews

Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit for Variable Voltage Incandescent Tail Lights - RM26FR

Average Customer Rating:  4.7 out of 5 stars   (10 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:

Works like towing a trailer, The wiring was a challenge and the E-Trailer video on installatios was very helpful



by:

This is to rig my third vehicle for flat towing behind our motorhome. I am sure that the e-trailer people will be available to help me if I need advice.



by:

Work as advertised - no issues



by:
2018 Chevrolet Equinox

Installation went very well with the help of the video on your website. Thanks.



by:



by:



by:



by:



by:

Review from a similar Smart Diode in Tow Bar Wiring


I ordered an in stock item on Thursday but did not receive it until 9 days later. Maybe I didn't order it correctly to receive it sooner. I don't think a picture will show the products on my vehicle. That is a great thing!



by:

Review from a similar Smart Diode in Tow Bar Wiring



10
10

Ask the Experts about this Roadmaster Tow Bar Wiring



  • Correct Flat-Tow Diodes and Install for 2020 Chevy Equinox LT
    The 2020 Chevrolet Equinox LT has variable voltage taillights so in order to use diodes you must go with the Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit part # RM26FR. I have attached an install video which shows the correct model with two taillight connectors as you have.
    view full answer...
  • Tow Bar Lighting Kit Recommendation for 2013 Chevy Sonic
    For lighting you can use the diode kit, # RM26FR, 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.
    view full answer...
  • What Lights Will Be Powered When Installing Tow Bar Wiring On 2020 Chevrolet Sonic
    The Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit for Variable Voltage Incandescent Tail Lights # RM26FR you were looking at for your 2020 Chevrolet Sonic will power the tail lights when plugged in to your RV. You should have turn signals, brake lights, and tail lights that come on when you turn on the running lights of your RV. These functions will only happen on the tail lights, and will not light up the front turn signals. If you are missing any of these functions I recommend...
    view full answer...
  • Should Wiring Harness Be Installed When Bumper is Off for Base Plates on 2019 Chevy Equinox
    Yes, when installing the Roadmaster Crossbar-Style Base Plate Kit part # RM-523193-4 on a 2019 Chevrolet Equinox it will be a good idea to go ahead and run the wires for the flat-tow wiring harness while the bumper is off. If you don't already have a wiring harness, I recommend using the Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit part # RM26FR. I have done by fair share of flat-tow installations and this is how I have done them each time.
    view full answer...
  • Recommended Roadmaster EZ5 Direct-Connect Base Plate For A 2021 Chevy Equinox
    We definitely have options available for your new 2021 Chevrolet Equinox. Having the tow bars and braking system from a previous vehicle definitely makes life easier, and the Sterling tow bar ( # RM-522) will have no problem handling the weight. So to start, the Roadmaster Direct-Connect Base Plate Kit # RM-523193-5 will require a little trimming to get installed, but is specifically for your vehicle. The removable arms are Roadmaster's EZ5 Direct-Connect style connection, so it will have...
    view full answer...
  • Is Brake Light Switch Needed w/ Invisibrake Supplemental Braking System on 2021 Chevy TrailBlazer
    It looks like you've got a good handle on what you need to flat tow your TrailBlazer. You will indeed need a stop light switch, part # RM62FR. Also, per the owner's manual, you'll need to disconnect the negative battery terminal before towing. A quick disconnect, part # RM-766 is available. The kit includes a switch that mounts in the passenger cab of the vehicle that allows you to disconnect and connect the battery remotely without needing to go into the engine compartment and disconnect...
    view full answer...
  • Does Roadmaster Flat Towing RM-155 Bulb and Socket Kit Fit a 2020 Chevy Equinox
    It will depend on the trim level of your 2020 Equinox. If it's an L, LS or LT model, you will be able to use the # RM-155 Roadmaster bulb and socket kit. If it's a Premier model, you'll need to use a different option. The Premier model uses variable voltage taillights that would require a smart diode. If the taillights on the Premier model are incandescent, use # RM26FR. If they're LED, use # RM38FR. I've linked to some installation videos that you might find helpful.
    view full answer...
  • Does the Roadmaster Falcon 2 and Falcon All-Terrain Towing Kit Come With Diodes Included
    The diodes that are included in the Roadmaster # RM-9243-1 are not LED light diodes, but are diodes installed on the electrical system put in place to help protect the tow vehicle from any potential shorts or power surges that could damage it while towing. This Roadmaster # RM-9243-1 does utilize bulb and socket lighting, which are the bulbs you're seeing and will be installed into your tail light housing. With that said, you might actually be better off using the Roadmaster Smart Diode...
    view full answer...
  • How To Use Roadmaster Nighthawk Tow Bar On a 2020 Chevrolet Equinox
    In order to use the Roadmaster Nighthawk All Terrain, Non-Binding Tow Bar part # RM-676 on a 2020 Chevrolet Equinox you'd indeed need the Roadmaster Direct-Connect Base Plate Kit part # RM-523193-5 which is an exact fit. I am not sure what you mean by size but the Roadmaster Direct-Connect Base Plate Kit works with all Roadmaster tow bars that slide into a trailer hitch. In order to complete your setup you'll only need the Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit part # RM26FR...
    view full answer...
  • Compatibility of Curt C28FR Base Plate With Blue Ox Tow Bar on 2019 Chevy Equinox
    It sure will. The Curt # C28FR Base Plate Kit is compatible with Blue Ox or Curt base plates (also with Roadmaster and Demco if the correct adapter is used). You'll also need safety cables like # RM-643, a wiring solution like # RM26FR unless its a Premier model, in which case you'd need # RM-15267 and a supplemetal braking system like the Roadmaster # RM-8700 Invisibrake and a # RM-751489 stop light switch. If the installed height of the base plate is more than 3 inches higher or lower...
    view full answer...
  • How To Use Roadmaster Nighthawk Tow Bar On 2022 Chevy TrailBlazer
    In order to use the Roadmaster Nighthawk All Terrain, Non-Binding Tow Bar part # RM-676 on a 2022 Chevrolet TrailBlazer you'll need the Roadmaster Direct-Connect Base Plate Kit part # RM35FR. If you want to use the Roadmaster Nighthawk All Terrain, Non-Binding Tow Bar for Blue Ox Base Plates part # RM-677 you'll instead need the Blue Ox Base Plate Kit part # BLU49FR. The instructions are linked for you so you can determine if you are capable. A few other things you might want to consider...
    view full answer...
  • Compatible Blue Ox BasePlate For A 2022 Chevy Trailblazer And Other Towing Equipment Recommendations
    The Blue Ox Base Plate Kit - Removable Arms Item # BO74FR are not a confirmed fit for a 2022 Chevy Trailblazer but the Blue Ox Base Plate Kit - Removable Arms Item # BLU49FR are and will work with your Blue Ox tow bar without needing an adapter. You'll want to ensure that the tow bar you have is rated to handle the weight of your vehicle prior to towing it. You'll also need a tow bar wiring kit, braking system, and safety cables. I have the following recommendations for you below: Tow...
    view full answer...
  • Parts Needed to Flat Tow a 2018 Chevy Equinox
    We do have a base plate kit and everything else that you will need to flat tow your 2018 Chevrolet Equinox! I recommend using the Roadmaster EZ5 Base Plate Kit # RM-523193-5 for a base plate kit. It features removeable arms that will give your Equinox more of an OEM look when you are not towing it. You will also need a tow bar, safety cables, vehicle tow bar wiring, a supplemental braking system, and possibly a high-low adapter. For a tow bar that is compatible with your EZ5 base plates...
    view full answer...
  • Comparing Roadmaster and Blue Ox Base Plate Kits For 2021 Ford F-150 4WD
    If I was installing a base plate kit on my 2021 Ford F-150 4WD to flat tow it I personally would go with the Roadmaster Direct-Connect Base Plate Kit # RM38VR over the Blue Ox # BLU33FR. This is simply due to preferring the Roadmaster tow bars over the Blue ox options, though both brands are well known and very reliable so you really cannot go wrong with either option especially since both of these above base plate kits install in a very similar manner, and both have removeable arms so...
    view full answer...
  • Recommended Flat Towing Equipment For A 2020 Chevy Equinox LT
    To flat tow your 2020 Chevy Equinox LT with your Roadmaster Tow Bar you'll also need a base plate, tow bar wiring kit, braking system, and safety cables. I have the following recommendations for you below: Base Plate: Roadmaster Direct-Connect Base Plate Kit # RM-523193-5. These direct-connect attachment points allow for easy connection or removal from your tow bar. The removable arms provide a clean factory look when not in use. Tow Bar Wiring Kit: If you have LED tail lights then you'll...
    view full answer...
  • Roadmaster Direct-Connect Base Plate Kit with Removable Arms for 2022 RS Trim Chevrolet TrailBlazer
    The Roadmaster Direct-Connect Base Plate Kit, # RM35FR will not fit the RS model of the 2021 Chevrolet TrailBlazer. We do however have three options that are a confirmed fit for the RS model of the 2021 Chevrolet TrailBlazer. The Roadmaster Crossbar-Style Base with removable arms, # RM96VR. The Roadmaster Direct-Connect Base with removable arms, # RM46VR. And the Blue Ox Base Plate Kit, # BLU49FR. These are all confirmed fit for the 2021 models, not yet listed as such for the 2022....
    view full answer...
  • Parts Needed To Flat-Tow a 2020 Chevrolet Sonic
    The 2020 Chevrolet Sonic can be flat-towed behind a motorhome with all four wheels down. In order to do so you'll need a base plate kit, tow bar, flat-tow wiring harness, a supplemental braking system, safety cables, and a few other smaller items. I have attached a list of these for you below. Roadmaster Crossbar-Style Base Plate Kit part # RM23FR Roadmaster Falcon 2 Tow Bar part # RM-520 RoadMaster 68" Single Hook, Coiled Safety Cables part # RM-643 Roadmaster Smart Diode 7-Wire to 6-Wire...
    view full answer...
  • Wiring Kit To Flat Tow 2021 Chevrolet Trailblazer RS
    There is a wiring kit that will allow you to flat tow your 2021 Chevy Trailblazer RS, and what you will need is a kit from Roadmaster that is compatible with your vehicle's lights: - Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit for Variable Voltage Incandescent Tail Lights # RM26FR This is needed to ensure the taillights on your '21 TrailerBlazer don't look like the brakes are always on; since your taillights that use the same wire to power the brake lights and taillights, this...
    view full answer...
  • Recommended Components for Flat Towing a 2012 Chevy Sonic
    For your 2012 Chevy Sonic, there are many components you will need. Here are my recommendations for you: Blue Ox Base Plate Kit - Removable Arms # BX1703 for a custom connection to your Sonic frame. Roadmaster Falcon 2 Tow Bar for Blue Ox Base Plates - Motorhome Mount - 2" Hitch - 6,000 lbs # RM-525 to connect the RV to your Sonic baseplates. You will also need safety cables # RM-643. Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit for Variable Voltage Incandescent Tail Lights # RM26FR...
    view full answer...
  • Flat Towing Recommendations For A 2016 Chevy Spark LS
    You made some great choices for flat towing your 2016 Chevy Spark LS. I do want to confirm that you have a manual transmission as an automatic will require you to dolly tow instead of flat towing. If you do need to dolly tow I recommend the Demco Kar Kaddy SS Tow Dolly with Disc Brakes - Foldable - 4,800lbs Item # DM9713045. Tow Bar: Roadmaster Falcon All Terrain, Non-Binding Tow Bar - Motorhome Mount - 2" Hitch - 6,000lbs Item # RM-522. This tow bar is great and comes with a non-binding...
    view full answer...
  • How To Use Roadmaster Nighthawk Tow Bar On 2020 Chevy Spark LT Manual Transmission
    In order to use the Roadmaster Nighthawk All Terrain, Non-Binding Tow Bar part # RM-676 on a 2020 Chevrolet Spark LT with manual transmission you'll want to use the Roadmaster Direct-Connect Base Plate Kit part # RM-523202-5. For a flat-tow wiring harness, I recommend the Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit part # RM26FR. In order to use the Blue Ox Patriot 3 Radio Frequency, Portable Braking System part # BRK2019 you'll also need the 12 Volt Outlet Kit part # RM-9332 but...
    view full answer...
  • Parts Needed to Flat Tow a 2021 Chevrolet Equinox Behind a RV
    There are at least 5 different parts needed to flat tow your 2021 Chevrolet Equinox behind your RV. I will list them out, explain what each one does/is for and provide a recommendation for each part. Base Pate Kit: This is what installs onto your Equinox and where the tow bar coming from the RV will attach. I recommend the Blue Ox Base Plate Kit # BX1730. This base plate kit is made in the USA, has a hidden design that provides a clean, seamless look and the arms remove with a simple twist...
    view full answer...
  • Why Disconnect Battery to Flat Tow Vehicle Behind Motorhome
    GM states in the owner's manual that to recreationally tow the vehicle, the negative battery cable must be disconnected. The owner's manual doesn't list a specific reason, it only states that failure to do so could damage the vehicle. The fact that the key needs to be left in the Accessory position while towing so the steering wheel doesn't lock up gives me a pretty good idea that with the key in the ACC position, there must still be an electrical draw on the battery. Disconnecting the...
    view full answer...
  • How To Use Roadmaster Falcon 2 Tow Bar On a 2018 Chevy Equinox
    In order to use a Roadmaster Falcon 2 Tow Bar part # RM-520 on a 2018 Chevrolet Equinox you can use the Blue Ox Base Plate Kit part # BX1730 with the Blue Ox Base Plate Adapter Brackets for Roadmaster Tow Bars part # BX88151 or the Roadmaster Direct-Connect Base Plate Kit part # RM-523193-5. In regard to wiring, the Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit part # RM26FR is what I recommend.
    view full answer...


< Previous
12



Do you have a question about this Tow Bar Wiring?




  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality tow bar wiring for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate tow bar wiring information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Joshua S
Video by:
Joshua S
Employee Chris R
Video by:
Chris R
Employee Jonathan Y
Video by:
Jonathan Y
Employee Jacob T
Video Edited:
Jacob T
Employee Conner L
Test Fit:
Conner L
Employee Ryan G
Test Fit:
Ryan G
Employee Clayton O
Test Fit:
Clayton O
Employee Mike S
Written by:
Mike S

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.