1. Tow Bar Wiring
  2. Roadmaster
  3. Diode Kit
  4. Splices into Vehicle Wiring
  5. Universal
  6. Tail Light Mount
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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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 800-298-8924 for expert service.
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Roadmaster Tow Bar Wiring - RM-15267

  • Diode Kit
  • Splices into Vehicle Wiring
  • Roadmaster
  • Universal
  • Tail Light Mount

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




Video of Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Roadmaster Tow Bar Wiring - Splices into Vehicle Wiring - RM-15267 Review

Today we're going to take a look at the RoadMaster diode seven-wire to six-wire flexo coil wiring kit. Now, this will let your wire your vehicle to accept your RV's tail, brake and turn signal lights for flat towing. This will wire the tow car as a combined system so that your brake and turn signals will travel along the same wire. It will also prevent electrical feedback in the damage it can cause to your vehicle's electrical components. The diodes right here use a powder-coated aluminum case, which is corrosion resistant. They provide protection from the elements. Now, if this kit is used with supplemental braking system, it may require a brake light relay, part number RM-88400.

We do sell that separately on our website. The flexo coil cord right here is resistant to water, oil, chemicals, has silicone-injected plugs to help prevent corrosion. The center pin on the six-way plug, it can be wired two different ways. This one happens to be wired as a 12-volt power center pin. It includes everything shown here on the table. Includes the four high-power diodes, the 30-foot long, four-wire harness, all the wire connectors you'll need and cable ties, a nice three-foot long plastic loom to put around the wiring.

This cord right here is an eight-foot coiled cord, and it comes with a vehicle socket, the six-pin socket right here and the mounting bracket for that. All these parts are made in the USA and also covered with a nice set of detailed instructions on how to install everything. A few specs on this kit: The diode max. amperage is 85 amps. The diode max. voltage is 24 volts, and we mentioned the coil cord length is eight-foot, and when it's totally extended out, it's 15 foot.

One last note on this kit. For applications that'll have separate lighting, this kit will cause your brake lights to function as both brake and turn signal lights, so you would need to get a wiring converter, which is part number 118158, and two additional diodes, which are part number RM792. Those will be needed if you want to retain separate turn and brake signals. That should do it for the review on the RoadMaster diode seven-wire to six-wire flexo coil wiring kit.


Customer Reviews

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

Average Customer Rating:  4.8 out of 5 stars   (199 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:

Great customer service 683031



- RM-15267
by:

Everything as expected. Super Fast Ship ping 693656



- RM-15267
by:
Cadillac SRX

Overall this would be a five star review except for two issues. One being the wire provided was not 30 ft but was closer to 25 ft as I checked before using. I wired the same as the great etrailer video for my vehicle Cadillac SRX and ended up short. Fortunately I had additional wire and was able to complete the run. Secondly, the female spade connectors used on the diodes needed to be tightened as they were not very tight as provided by Roadmaster. These were all Roadmaster issues and of not fault of etrailer. Everything else looked of good quality. 428886



- RM-15267
by:
2016 Jeep Wrangler

Takes time to install, but easy with good instructions. Fast shipping from etrailer. Thanks! 661431



- 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. 444983



- RM-15267
by:
2018 Subaru Forester

I found the installation video to be more helpful than the written instructions. The toughest part of the installation was routing the wires to the front of the Forester. The video was helpful in figuring out the best path for the wires. 460332



- RM-15267
by:
2016 Jeep Cherokee

The product is a good quality I installed this before. This time I needed 4-5 feet extra wire to route it properly. That's why I give it a 4 start. On the end its worked fine. 252634



- RM-15267
by:

The quality is good, straightforward install. I’m happy with the kit 568004



- RM-15267
by:

Very good quality. Installation took 4 hours and that was due to locating tail light pins of which i had 2 on both left and right lights. Had to find 2018 jeep wrangler jl wiring schematics to find which one was the correct one to use. Where i could, I ran all wiring inside the frame members. That took more time than expected, but after that installation was a breeze. Refer to installation videos, very big help! After installation everything worked as expected between RV and Jeep! 693146



- RM-15267
by:

I like the coiled cable in RM-15267 At one time I owned an Airstream travel trailer that had a tow cable. The Airstream did not have a coiled cable and I had to tie it up with bungy cords to still allow flexibility while traveling. That lasted for one season and the bungy cords stretched out and the cable started touching the road, scraping off the insulation! The coiled cable in the RM-15267 prevents the cable from dragging on the road! 446459



- RM-15267
by:
Jeep

Everything installed without any issues. I'm very particular so it took 2 days to complete everything. I'm sure a pro could do it much faster. Have towed the 4" lifted (and loaded) Jeep accross the Rockies about 6 times and everything is working perfectly!! Very happy camper!! 301003



- RM-15267
by:
2015 Cadillac ATS

Great kit for auto to motor home connection. Watched the video while installing the kit. Very good video and spot on for making the connection and explaining how to route the harness. 502226



- RM-15267
by:

his product worked as advertised. Installed it on my 2010 Jeep Wrangler. shipped fast and the install wasn't all hard with the help of the great videos on line made it much easier. 670790



- RM-15267
by:

Friendly service, Great prices, fast shipping! What else could a person hope for! 690216



- RM-15267
by:

All was straight forward and the video was spot on for the installation. Wasn’t easy but well worth it. Had a broken part on the original delivery and the part was delivered fast. 654435



- RM-15267
by:

The wiring kit included all the parts listed and the video was most helpful with the installation. The installation went fairly easy until I got to the portion of running the brown wire from one taillight to the other taillight. The brown wire was not long enough. I had to splice another piece of wire on to the brown wire to make it longer. etrailer should consider making the length of included wire approximately 3 feet longer. That would have helped a lot with the installation. Also include a longer piece of the split protective plastic. Other than those two issues, I am satisfied with the product. 459131


Comments
After one year of use and the wiring installation has worked great.
Steve - 12/11/2018

46589

- 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. 616795



- RM-15267
by:
2000 Jeep Wrangler

Excellent company. Great communication, fast shipping and the products worked perfectly. I had some trouble installing this to my rear brakes, but that was my own fault. I didn't realize that the brake lights are grounded when they are mounted to the Jeep. So I kept testing the lights once they were hooked up, however they weren't mounted back on the Jeep. It wasn't until everything was mounted back on that it all worked without any issues. 305606



- RM-15267
by:
Subaru

I ordered an entire setup to flat tow my Subaru with my RV. Having never done this before I was nervous about missing something I might need. etrailer made it very easy when I called them on the phone. I told them what I was trying to do and they made sure I had everything needed to complete the job. I was given a name and phone number to call the same person if I had any issues. When one of the boxes was opened it was missing two pins from the manufacturer. A quick phone call and they had them in the mail in a matter of hours. This kind of personalized service is missing in our ever changing world. It was a pleasant surprise to find it here. Great Job etrailer. I will favorably recommend to everyone. 493275



- RM-15267
by:

Worked Great, was easy to install. I also like my Roadmaster, BrakeMaster for my tow vehicle behind my motorhome. 740386



- RM-15267
by:

simple wiring 737833



- RM-15267
by:

Still works as it should 737746



- RM-15267
by:
Honda

I had a mechanic put this on my 2014 Honda CRV. Works great not one problem after one year and 5000 mikes. 737852



- RM-15267
by:

AMAZING PRODUCT WOULD DEFINITELY RECOMMEND AND USE AGAIN 736987



- RM-15267
by:

Just as described online and in the videos. Install was a breeze once I got the wiring fished through the frame. Plug and Play during the installation and now Plug and Go when we hook up. 736805


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Show More Reviews

Ask the Experts about this Roadmaster Tow Bar Wiring

  • Parts Needed to Flat Tow 2019 Jeep Wrangler
    The first thing you need is a base plate kit that is designed for your 2019 Jeep Wrangler. For that you'd want the Roadmaster EZ5 part # RM-521450-5. Next you'll want a tow bar to connect the base plate to your motorhome. The Roadmaster Falcon 2 part # RM-520 would be your best option. It's the easiest to use and our most popular option. For safety cables you can use # RM-643. The coiled design helps keep the cables off of the ground. For lighting you can use the diode kit, # RM-15267,...
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  • Flat Towing Wiring Kit for a 2018 Jeep JL Wrangler Unlimited
    The Tekonsha T-One # 118786 that you referenced is for activating the light functions on a trailer when towing with your 2018 Jeep JL Wrangler Unlimited. It sounds like you are needing some wiring to flat tow your Jeep and for that you need some different parts. If you use the Hy-Power Diode Wiring Kit # RM-152 along with the Hopkins Mounting Bracket # HM48605 and the Pollak Heavy-Duty, 4-Pole, Round Pin Socket # PK11410 then you will essentially have the Flexo-Coil Wiring Kit # RM-15267...
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  • Parts Needed to Flat-Tow a 2019 Jeep Cherokee Trailhawk
    In order to flat-tow a 2019 Jeep Cherokee Trailhawk you are going to need a base plate kit, tow bar, safety chains, flat-tow wiring, a supplemental braking system, and a possible high-low adapter. I have attached my recommendation on the following parts for you below. Base Plate Kit: Roadmaster EZ4 Base Plate Kit part # RM-521451-4 - This kit has removable arms for a clean look while unhooked from the RV. As long as you do not have the active air shutter system it will work for you....
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    For your 2018 Jeep JL Wrangler, I recommend the Roadmaster EZ5 Base Plate Kit # RM-521450-5. This base plate kit is confirmed to fit your Jeep with the factory bumper and will work perfectly with your existing Falcon 2 Tow Bar. When installing the base plates, you will likely need to trim some fascia to allow enough room for the receivers (see attached pictures). I have attached the complete installation instructions that you can also look through. In order to flat tow your Jeep...
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  • Wiring 2019 Ram 1500 to be Flat Towed Behind RV
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  • Flat Tow Wiring for a 2017 Jeep Wrangler
    The Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit, part # RM-15267, is the best option for you to use to flat tow your 2017 Jeep Wrangler. It will provide a 6-Way wiring harness to the front of your Wrangler that you can connect to the 7-Way on your RV with the included Flexo-Coil cord. If your Wrangler has separate lighting you will need to use a wiring converter, part # 118158, along with 2 additional diodes, part # RM-792, to keep your turn and brake signals separate. If...
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  • Blue Ox Base Plate Kit for 2019 Jeep Cherokee Trailhawk
    For your 2019 Jeep Cherokee Trailhawk you'd want the Blue Ox base plate kit part # BX1143 since you have a Blue Ox tow bar. I attached an install video for this for you to check out as well. The special harness you need to prevent the wobble while flat towing is not needed for your year vehicle. 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...
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    Blue Ox does have a base plate kit that fits your 2020 Jeep Gladiator, it's part # BX1142. It fits regardless of which model Gladiator you have. It sounds like you probably already have a tow bar. If you don't have safety cables use # RM-643 for a set that's coiled. This way they don't drag on the ground. You also need wiring and a braking system to flat tow the Jeep. I recommend the diode kit # RM-15267 and Stay-IN-Play DUO # SM99251. Both get installed onto the Gladiator so you...
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    There are a number of parts you're going to need in order to flat tow your 2019 Jeep Wrangler JL Unlimited and I'll list the parts you need below: - Base Plate Kit: Roadmaster EZ5 Base Plate Kit # RM-521450-5 - Tow Bar: Roadmaster Falcon All Terrain, Non-Binding Tow Bar # RM-522 - Safety Chains: RoadMaster 68" Single Hook, Coiled Safety Cables # RM-643 - Wiring Kit: Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 - Supplemental Braking System: SMI Stay-IN-Play...
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    For your 2019 Jeep Cherokee Trailhawk we have everything you'll need to flat tow it besides the harness that Chrysler mentioned. They did recently take off the market the old harness they recommended and last we heard are still in process of redesigning it like what they told you (as of June 2018). Even when it is available it won't be a part we'll carry though as it's a Mopar only product. We do have the base plate you'll need which is part # RM-521451-5. This would work well with our...
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    There are a number of parts needed in order to flat tow your 2019 GMC Canyon Denali, which I'll list for you: - Base Plate Kit: Roadmaster Crossbar-Style Base Plate Kit # RM-523182-4 - Tow Bar: Roadmaster Sterling All Terrain Tow Bar # RM-576 - Wiring Kit: Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 - Roadmaster Automatic Battery Disconnect with Switch # RM-766 (Please note this cannot be used if cannot be used if your Canyon is diesel or has dual batteries,...
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    While there are parts that will allow you to flat tow your 2011 Jeep Wrangler Unlimited, unfortunately there is no way to do it with a front-mounted hitch like your Draw-Tite # 65069 because it will not give your Jeep the needed support while being towed. The most economical option is the Curt Tow Bar with Adjustable-Width Arms # C19745 which comes with universal bumper brackets that do need to mount to a flat metal section of your bumper and will almost certainly require modification...
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    There are a number of parts needed in order to flat tow your 2019 Jeep Cherokee Trailhawk Elite, which I will list for you: - Base Plate Kit: Demco Tabless Base Plate Kit # DM9519340 - Tow Bar: Excali-Bar III Non-Binding Tow Bar # DM9511013 - Wiring Kit: Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 - Supplemental Braking System: SMI Stay-IN-Play DUO Supplemental Braking System # SM99251 OR if your motorhome has air brakes: SMI Air Force One Supplemental Braking...
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  • Is Fuse Bypass Needed and All Parts Required to Flat Tow 2019 Honda Civic
    A fuse bypass is not needed to flat tow your 2019 Honda Civic with manual transmission, though there are a number of other parts that are required, which I'll list for you to make it easy to see exactly what is required. - Base Plate Kit: Blue Ox Base Plate Kit # BX2265 - Tow Bar: Demco Commander 2 Tow Bar for Blue Ox Base Plates # DM9511012-BX - Wiring Kit: Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 - Supplemental Braking System: SMI Stay-IN-Play DUO Supplemental...
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  • Availability of Roadmaster Base Plate Kits that Fit 2019 Jeep Cherokee Trailhawk
    For your 2019 Jeep Cherokee Trailhawk the correct base plate kit from Roadmaster is the part # RM-521451-4 that you referenced. We also do carry the # RM-521451-5 which is a fit and is the EZ5 style instead which does not require the tow bar to use the crossbar. These are the correct kits for your vehicle, since we haven't the chance to take picutres of either kit we use "typical photos" that show what a typical base plate kit looks like. In addition to the base plates, you will...
    view full answer...
  • Can 2017 Jeep Wrangler with SmittyBilt XRC Bumper be Flat Towed
    For your 2017 Jeep Wrangler with a Smittybuilt XRC bumper we have the Blue Ox adapter part # BX88304 which will allow to connect the vehicle to a Blue Ox tow bar like part # BX7365. 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...
    view full answer...
  • Parts Needed to Flat Tow 2018 Jeep Wrangler JL With BrakeBuddy Supplemental Braking System
    To flat tow your 2018 Jeep Wrangler JL you will need to start with compatible base plates; because you have a Blue Ox tow bar and assuming you have the standard factory bumper the best option is the Blue Ox Base Plate Kit # BX1139 which will be compatible with Blue Ox tow bars Alpha # BX7365, Avail # BX7420 as well as Aventa, Aladdin, Adventurer, Ambassador, Acclaim, Allure, and Trion. If your Blue Ox tow bar does not have integrated safety cables you will need those and can use the Blue...
    view full answer...
  • Is MOPAR Part # 68321424AB Required to Flat Tow a 2018 Jeep Cherokee
    From our experience the part 68321424AB is required on a 2018 Jeep Cherokee. I recommend checking with a dealership for confirmation. Unfortunately, that part must be sourced at a dealership as well. We do however, have everything else you may need to flat tow the Jeep. The custom base plate kit you need is either part # RM-521447-5, if your Jeep is not a Trailhawk or part # RM-521446-5 if it is. These will connect directly to the Falcon 2 tow bar, part # RM-520. Then you can...
    view full answer...
  • Parts Needed to Flat Tow 2019 GMC Acadia Denali
    Yes, the Roadmaster base plate kit part # RM-523189-4 does fit the 2019 GMC Acadia Denali as long as you don't have adaptive cruise control. In addition to the base plates, you will also need a compatible tow bar, safety cables, lighting, and supplemental braking to flat tow your vehicle. The most popular compatible tow bar is the Falcon 2, # RM-520. For safety cables you can use # RM-643. The coiled design helps keep the cables off of the ground. For lighting you can use the diode...
    view full answer...
  • Recommended Wiring to Utilize Blue Ox Patriot in a 2018 GMC Canyon 4x4
    To use the Blue Ox Patriot II Radio Frequency, Portable Braking System # BRK2016 on your 2018 GMC Canyon, you will simply use the 12V outlet kit # RM-9332 that wires directly to your battery. This will supply power even when disconnected. For an easy disconnect, I recommend the Roadmaster Automatic Battery Disconnect with Switch for Towed Vehicle w/ Supplemental Braking System # RM-766. This makes disconnecting your battery for flat towing as easy as flipping a switch. For vehicles that...
    view full answer...
  • Parts Needed to Flat Tow a 2019 Jeep Wrangler Behind a Motorhome
    For your 2019 Jeep Wrangler and Falcon 5250 tow bar you will just need to add base plates, safety cables, lighting, and supplemental braking as the other main components for flat towing. For base plates you can use # RM-521450-4. These are custom fit base plates for your 2019 Wrangler and fit models with the standard factory front bumper. These base plates are also compatible with Roadmaster Quick Disconnects and all Roadmaster tow bars. I have included a link to the installation instructions...
    view full answer...

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Info for this part was:

Test Fit:
Joe V
Test Fit:
Randy B
Test Fit:
Andrew S
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