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

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

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Roadmaster 7 Blade to 6 Round Accessories and Parts - RM-146-7
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Easily and effectively connect your motor home to your towed vehicle with this water, oil, and chemical-resistant electrical cord. Flexo-Coil technology allows cord to extend more than 8' and then contract conveniently for storage. Call 800-298-8924 to order Roadmaster accessories and parts part number RM-146-7 or order online at etrailer.com. Free expert support on all Roadmaster products. Guaranteed Lowest Price and Fastest Shipping for Roadmaster 7-Wire to 6-Wire Flexo-Coil Kit. Accessories and Parts reviews from real customers.
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  • Reviews (109)
  • Q & A (69)
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Roadmaster Accessories and Parts

  • Tow Bar Wiring
  • Extension
  • Roadmaster
  • 7 Blade to 6 Round
  • Coiled Cord

Easily and effectively connect your motor home to your towed vehicle with this water, oil, and chemical-resistant electrical cord. Flexo-Coil technology allows cord to extend more than 8' and then contract conveniently for storage.


Features:

  • Adapter cord can be used for multiple towing applications
    • Perfect for running power from your RV with the 7-pole, round plug to your towed vehicle or trailer with a 6-pole, round plug
  • Flexo-Coil cord can expand more than 8' yet still contract to prevent dragging and tangling
  • Silicone-injected plugs prevent corrosion
  • Electrical cord is resistant to water, oil, and chemicals
  • Center pin on 6-Way plug wired to 12V power for RM-146-7, there are two industry standards
  • Assembled in the USA


Notes: Flexo-Coil cords are not intended for use with Roadmaster All Terrain tow bars or any other tow bar that includes cable channel guides. Only straight cords should be used with those models.



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

Item # RM-146-7






Customer Reviews

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

Average Customer Rating:  4.9 out of 5 stars   (109 Customer Reviews)

Easily and effectively connect your motor home to your towed vehicle with this water, oil, and chemical-resistant electrical cord. Flexo-Coil technology allows cord to extend more than 8' and then contract conveniently for storage.

- RM-146-7
by:

Vehicle; 2019 Chevy Equinox 2.0 liter Turbo AWD I purchased the following parts from etrailer and installed them myself as per the instructions provided with the parts. The Roadmaster parts provided by etrailer are the best quality and there service is second to none. Parts purchased; RM-156-25 & RM-156-75 Battery charge kit. RM-523193-3 EZ4 Base kit. RM-751489 Stop light switch kit. RM-98160 Brake master air brake kit. RM-146-7 Power cord Thank you etrailer for your great service & product support. 732221


Comments
Since I installed these parts we have towed the Equinox about 20000 miles and havent had any problems with any of the products. They work exceptionally well. Very Happy
Rob K - 12/16/2020

104009

- RM-146-7
by:

It's been working great. 928162



- RM-146-7
by: 12/19/2020

Great quality worked as advertised 925105



- RM-146-7
by:

Very helpful on the phone. Is the correct coiled cable. Fast delivery. 923421



- RM-146-7
by: 11/29/2020

plugged it in and it works. 917269



- RM-146-7
by:

Worked great! Very simple to install. 915788



- RM-146-7
by:

This is a very reliable product. I have not had any issues with hooking up my keep to travel. Thank-You for providing safe equipment for my family and business constituents 914314



- RM-146-7
by:

Great service... 906728



- RM-146-7
by: 10/29/2020

905474



- RM-146-7
by:

great service in choosing product. quick considerate shipping. works well 897348



- RM-146-7
by: 10/01/2020

895595



- RM-146-7
by:

895345



- RM-146-7
by: 09/30/2020

894921



- RM-146-7
by:

Delivery on time and accurate. 883039



- RM-146-7
by:

Cable is a quality product. Works well with existing receivers on motor home and tow vehicle. 882048



- RM-146-7
by: 09/05/2020

As described. 874837



- RM-146-7
by:

very nice 849363



- RM-146-7
by:

I was excited to get it it on time and so quick. 824208



- RM-146-7
by:

The electrical cable has been everything I wanted and needed. It’s better than the. New new one and I use it all the time. 818244



- RM-146-7
by:

This is a must have to connect your "toad" to your motorhome. It works very nicely with the Blue Ox Tow Bar Wiring Kit with 4 Diodes. Highly recommened. 814912



- RM-146-7
by:

Product met my expectations. Arrived earlier than promised To be used to tow truck behind motor home. 771070



- RM-146-7
by:

Easy to install works great 770820



- RM-146-7
by:

it looks like the replaced cable is the correct one and should work. Thanks for the fast service. 767879



- RM-146-7
by:

Great products 749955



- RM-146-7
by:

Quick delivery! Great advice & guidance about products needed ! Would use again !!! 745187


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Ask the Experts about this Roadmaster Accessories and Parts

  • Adding a 7-Way Trailer Connector or Tow Bar Wiring Harness to Charge Battery on a 1994 Ford Mustang
    If you are looking for a tow bar wiring harness for the front of your 1994 Ford Mustang that plugs into a 7-Way then I have a solution though there are no custom fit wiring harnesses available. You can use a magnetic kit such as # C-ATL20A. But instead of using the 4-Way flat at the front you would need to instead wire in a 6-Way using # RM-146-7. The 7-Way end will plug into the RV. The other end will plug into the 6-Way that you will mount at the front of the Mustang. The wires from...
    view full answer...
  • Comparison Of Roadmaster And Blue Ox 7-Wire to 6-Wire Coiled Electrical Cord
    The difference between the # RM-146-7 and # BX88206 coiled 7-wire to 6-wire cord is minor. The Roadmaster cord can be expanded to 8-ft and the Blue Ox expands to 7-ft.
    view full answer...
  • Does the Battery Have to be Disconnected to Flat Tow a 2015 Chevy Suburban Behind a Motor Home
    The battery should be disconnected because your 2015 Chevy Suburban has some feature that draws power when the vehicle key is in the towing position indicated in the owner's manual. If you leave the battery connected then what will happen is the battery will drain unless you stop frequently enough to let the Suburban motor run so the alternator can charge the battery back up. But there is a way to provide a maintenance charge to the vehicle battery when flat towing it with the battery...
    view full answer...
  • Is the Roadmaster 7-Way to 6-Way Connection Cable Waterproof?
    The Roadmaster 7-Wire to 6-Wire Flexo-Coil Kit # RM-146-7 is a water resistant cable, but it is not waterproof because of the electrical connections. The connections will stand up to extreme rain without issue, but are not designed to be completely submerged. Using dielectric grease like # 11755 will help keep moisture and debris out of the connections as well, but won't allow the connections to be submerged. Many people that use this kit will also use the Roadmaster Battery Charge...
    view full answer...
  • Connecting 12 Volt Power From RV to Battery on 2010 GMC Sierra through 7-Way to 6-Way Cable
    I can explain how to attach a wire from the 6-Way connector in Roadmaser kit # RM-146-7 to the battery on your 2010 GMC Acadia. The center pin on the 6-Way is the 12 volt circuit. Attach one end of a wire to the back of that 6-Way, center pin. Then route the wire in such a way that it does not make contact with any hot or moving parts under the hood. Route the wire over to the positive battery terminal and attach it to a free stud with a ring terminal. For wire you can use # 12-1-1,...
    view full answer...
  • Tow Bar Wiring Recommendation for Roadmaster All-Terrain Tow Bars
    For the all terrain tow bars the non-coiled wires are recommended since the arms telescope and the all-terrain bars come with guides. But if you really wanted to use the # RM-146-7 with an all-terrain bar you can technically still do it. A better recommendation would be the # RM-98146-7 as this is a straight cord. However, I attached a picture that shows the # RM-146-7 being used with the Falcon 2 Tow Bar part # RM-520 which is an all-terrain tow bar.
    view full answer...
  • Recommendation On Using A RoadMaster 7-Wire to 6-Wire Flexo-Coil Kit on a 2016 Ford Focus Hatchback
    Yes, it is possible to use a 7-way to 6-way coil cable to connect between your RV and your 2016 Ford Focus Hatchback. You will need the Roadmaster 7-Wire to 6-Wire Flexo-Coil Kit, # RM-146-7. Once you have the Roadmaster Universal Diode Wiring Kit, # RM-154, installed, the front 4-flat plug can be cut and removed. The 4 wires are then wired into the 6 pin connector. The connector is installed on the front of the focus. The Flex-Coil cable can be installed between the 6 pin connection...
    view full answer...
  • 7-Way Extension for Use with 36 Inch SuperTruss Extension
    To extend the 7-Way trailer connector out from the back of your truck to the mount on the SuperTruss extension I recommend # TLW6036 which is 36 inches long. Then you could use the Flexo-Coil kit # RM-146-7 like normal.
    view full answer...
  • Wire Gauges Used for RoadMaster 7-Wire to 6-Wire Flexo-Coil Kit
    You are correct. The wires for the light functions in Roadmaster Flexo-Coil Kit # RM-146-7 are 16 gauge and the 12 volt power and ground wires are the larger 14 gauge. I have linked a video review of this product for you.
    view full answer...
  • What Gauge Wires are Used in the Roadmaster 7-Wire to 6-Wire Adapter # RM-146-7
    I spoke to my contact at Roadmaster and he informed me that the gauge wires that are in the RoadMaster 7-Wire to 6-Wire Flexo-Coil Kit # RM-146-7 are 14 gauge and 16 gauge.
    view full answer...
  • Location for Installing Tow Lighting Socket on a 2016 GMC Canyon
    I attached a picture of a 2016 GMC Canyon front end that has a tow bar lighting socket installed in the front grille right above the license plate. That would be a great place to install the # RM-146-7.
    view full answer...
  • Can Roadmaster 7-Wire to 6-Wire Coiled Cord be Used on Vehicle with Blue Ox Base Plates/Tow Bar
    You can definitely use the Roadmaster # RM-146-7 over the Blue Ox # BX88206 even if you have a Blue Ox base plate kit/tow bar setup. The only time that you need to use specific wiring is when the wiring is built-in to the tow bar. If you don't already have the wiring on the vehicle then you ay be interested in the Roadmaster Kit # RM-15267 instead. This has the same connectors that you mentioned plus the diodes and wiring needed for a complete installation. This kit is pretty universal,...
    view full answer...
  • Can Battery on 2015 GMC Terrain be Charged While Flat Towing it Behind a Motor Home
    Check the owners manual for the vehicle you intend to flat tow because you may or may not have to disconnect the battery to flat tow it. If you do not then it is possible that there is some feature that could drain the battery while in tow. And of course if you do have to disconnect the battery it would not drain. To provide a maintenance charge to the vehicle while in tow you would attach a charge wire to the battery and connect it to the Terrain side connector. I recommend using a...
    view full answer...
  • Durability and Compatibility of Roadmaster 7-Wire to 6-Wire Flexo-Coil Kit
    Roadmaster over-builds their products and we have not heard of any issues with coiled extension kit # RM-146-7 so I believe that you will like it and that it will last a good long while. The 6-Way connector in the kit will fit Blue Ox base plates. If it is a snug fit or off just a little you can get a deep well socket to gently bend the posts on the base plate.
    view full answer...
  • Where is RoadMaster 7-Wire to 6-Wire Flexo-Coil Kit Assembled
    It is likely the RoadMaster 7-Wire to 6-Wire Flexo-Coil Kit # RM-146-7 was assembled in the USA with components coming in from elsewhere. This is something that is pretty common to save consumers money; parts are sourced elsewhere but assembled in the U.S.
    view full answer...
  • Charging Battery on 2005 Jeep While Being Towed Behind Motorhome
    In order to get power from your motorhome to your 2005 Jeep while you're flat towing you'll need a working 7 way with 12 volts. Since the front of your Jeep has a 4 way flat on it you will need to change out the plug because all 4 wires are being used. The tail light circuit won't have enough power to charge the battery and run the lights on your Jeep, however you won't be forced to rewire everything, just the plug on the front of the Jeep. If you don't have 12V at the back of the 7...
    view full answer...
  • How To Wire the Hopkins Flat-Tow Harness and Roadmaster InvisiBrake Toghter On a 2016 Jeep JKU
    For starters, there is no bridge between the toad and the tow vehicle for the Roadmaster Brake-Lite Relay Kit for Towed Vehicles part # RM-88400. This gets installed solely on the toad. In regards to the Hopkins Custom Tail Light Wiring Kit for Towed Vehicles part # HM56200, the Roadmaster InvisiBrake Supplemental Braking System part # RM-8700, and the RoadMaster 7-Wire to 6-Wire Flexo-Coil Kit part # RM-146-7 there are going to be components that gets bridged to the tow vehicle. The...
    view full answer...
  • Recommended Flat Towing Base Plate and Wiring for a 2013 or 2014 Honda CR-V
    For a 2013 Honda CR-V we have the Blue Ox Base Plate Kit - Removable Arms # BX2258 that will work well with your Blue Ox Tow Bar. I recommend using Loctite Threadlocker # LT37420 for this installation. For your vehicle wiring, I recommend the Hopkins Custom Tail Light Wiring Kit for Towed Vehicles # HM56304 which is the easiest kit to install with no splicing required and connects directly to the Honda wiring harness behind the tail lights. You will also need the 48" Long 4-Pole Loop...
    view full answer...
  • Parts Needed to Flat Tow 2018 Jeep Grand Cherokee
    You are on the right track and everything you have so far is a great choice for flat towing your 2018 Jeep Grand Cherokee. The Blue Ox base plate kit part # BX1128 is a confirmed fit. I attached an install video for the kit for your installer to check out as well. The tow bar you have part # BX7420 is also a really great option too as well as the DUO part # SM99251 which I attached an install video for as well. For lighting (only thing you are missing) you can use the diode kit, # RM-15267,...
    view full answer...
  • Base Plate for 2014 Jeep Wrangler With 1 D-Ring Bumper Mounts
    We have exactly what you need to flat tow your 2014 Jeep Wrangler with an off-road bumper that has 1" D-ring brackets, the Adapter for Jeep D-Ring Bumper Mounts to Roadmaster Motor Home Mount Tow Bars - 1" Thick # RM-035-1. As the name of the product states, however, they will require a Roadmaster tow bar as there are no adapters to use with a Blue Ox tow bar. For this I highly recommend checking out the Roadmaster Falcon All Terrain, Non-Binding Tow Bar # RM-522 because it has long arms...
    view full answer...
  • How to Change Out 4-Way at Rear of Motorhome to Work with 7-Way on Trailer
    Thank you for the pictures! What you may be able to do is install the Hopkins # HM47210 on your motorhome to replace your current 4-Way round connector. I'm guessing the 2 wires for your brake controller system are for 12V power and for the brake controller signal. If this is the case then you will need to connect the following functions on your motorhome wiring with the following wires from the Hopkins connector: White - Ground Yellow - Left Stop/Turn Green - Right Stop/Turn Brown...
    view full answer...
  • 7-Way to 6-Way Coiled Adapter that Has 14 Gauge Wire for Power and Ground Circuits
    We have the Roadmaster 7-way to 6-way coiled adapter part # RM-146-7 which has 14 gauge for the 12 volt power and ground circuits. The reason the Blue Ox has a ground wire with a heavier gauge is that if more than one circuit was active on the the heavier ground circuit would be beneficial as all of the circuits have to run back through the ground.
    view full answer...
  • Recommended Complete Flat Tow System for 2017 Jeep Wrangler Unlimited
    For your 2017 Jeep Wrangler Unlimited, I recommend starting with the Roadmaster Crossbar-Style Base Plate Kit - Removable Arms # RM-521448-4. This kit has removable arms to give you a very clean look when not flat towing your Jeep and also gives you a clean connection to your tow bar when towing behind your motorhome. I recommend installing this base plate using Loctite threadlocker # LT37420 to keep your hardware from vibrating loose over time. For your tow bar, I recommend the Roadmaster...
    view full answer...
  • Replacement Coiled Section for Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit
    In order to replace the umbilical cord on the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit part # RM-15267 you'll need the Roadmaster 7-Wire to 6-Wire Flexo-Coil Kit part # RM-146-7. It does however come with new mounting brackets as well.
    view full answer...
  • Recommended Parts/Accessories for Flat Towing 2020 Chevy Spark Behind Motorhome
    If your 2020 Spark is equipped with a manual transmission it can be flat towed, otherwise you'd need to use a tow dolly like # RM-2050-1. To flat tow the vehicle, you'll need a tow bar, base plates, safety cables, a wiring harness to join the motorhome taillight circuits to those of the car being towed, a supplemental braking system and possibly a high/low adapter depending on the height of the receiver on your motorhome. For a towbar, you cannot go wrong with the Falcon All Terrain,...
    view full answer...
  • Replacement 7-Wire to 6-Wire Adapter for Roadmaster Wiring Kit RM-15267
    It sounds like you just need the coiled 7-Wire to 6-Wire Flexo-Coil connector adapter from the # RM-15267, for which you can use the Hopkins Endurance Flex-Coil Trailer Connector Adapter w/ Nite-Glow - 7-Way to 6-Pole - 8' Long # HM47053. If you wanted an exact Roadmaster replacement you'll want to use the Roadmaster 7-Wire to 6-Wire Flexo-Coil Kit # RM-146-7. Either one of these would work for this application and would not require any soldering of connections.
    view full answer...
  • Recommendation for Flat Towing a 2010 Jeep Wrangler Sport
    Good news, I can help you get all the items you need to flat tow your 2010 Jeep behind your Motorhome. First I recommend the Demco Base Plate Kit # DM9519292 for your Jeep, assuming you don't have a modified bumper this will fit perfectly. If you do have a different bumper, I went ahead and linked our fitguide page for your vehicle where you can select the right fit for an aftermarket bumper. Next you will need to wire your Jeep by using the Roadmaster Univeral Diode Kit # RM-152....
    view full answer...

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