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Roadmaster Crossbar-Style Base Plate Kit - Removable Arms

Roadmaster Crossbar-Style Base Plate Kit - Removable Arms

Item # RM-521450-4

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Roadmaster Removable Draw Bars - RM-521450-4
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  • Roadmaster
  • Removable Draw Bars
  • Twist Lock Attachment
Roadmaster's crossbar-style brackets are virtually invisible, easy to mount and simple to remove. Brackets install on your vehicle's frame to provide attachment points for your tow bar. Call 800-298-8924 to order Roadmaster base plates part number RM-521450-4 or order online at etrailer.com. Free expert support on all Roadmaster products. Guaranteed Lowest Price and Fastest Shipping for Roadmaster Crossbar-Style Base Plate Kit - Removable Arms. Base Plates reviews from real customers.


  • All Info
  • Reviews (326)
  • Q & A (10)
  • Photos
  • Why etrailer?

Roadmaster Base Plates - RM-521450-4

Roadmaster's crossbar-style brackets are virtually invisible, easy to mount and simple to remove. Brackets install on your vehicle's frame to provide attachment points for your tow bar.


Features:

  • Hidden bracket design provides improved aesthetics compared with standard brackets
    • Crossbar-style brackets sit far back for a supremely clean look
  • Drawbars attach and remove quickly and easily
    • Arms click to lock in place in brackets
    • Built-in pull rings let you unlock arms so you can twist and remove them
  • Computer-cut, all-steel construction provides exceptional strength
  • Black powder coat finish is durable and corrosion resistant
  • Simple installation - no welding required
    • Custom base plates ensure a perfect fit for your vehicle
  • Compatible with Quick Disconnects and all Roadmaster tow bars
  • Instructions and mounting hardware included
  • Made in the USA


The drawbars, or front arms, on the crossbar-style series base plate kit are supremely easy to mount and remove. Just insert them into the brackets and twist to lock them in place. To remove, simply twist the arms back and pull them out. Once the drawbars have been removed, the remaining brackets are virtually invisible. On most automobiles, the brackets are mounted within the grille, where they remain not only unseen, but protected from scrapes and scuffs, as well.



521450-4 Road Master EZ4 Base Plate Kit



RM-521450-4 Installation InstructionsInstallation Details RM-521450-4 Installation instructions

This Product Fits The Following Vehicles

2018 - 2018 Jeep JL Wrangler Rubicon

2019 - 2020 Jeep Wrangler Rubicon

2018 - 2018 Jeep JL Wrangler Unlimited Rubicon and Moab

2019 - 2020 Jeep Wrangler Unlimited Rubicon and Moab

2018 - 2018 Jeep JL Wrangler Unlimited Sahara and Sport

2019 - 2020 Jeep Wrangler Unlimited Sahara, Sport, and Sport S

2018 - 2018 Jeep JL Wrangler Sport

2019 - 2020 Jeep Wrangler Sport and Sport S





Customer Reviews

Roadmaster Crossbar-Style Base Plate Kit - Removable Arms - RM-521450-4

Average Customer Rating:  4.8 out of 5 stars   (326 Customer Reviews)

Roadmaster's crossbar-style brackets are virtually invisible, easy to mount and simple to remove. Brackets install on your vehicle's frame to provide attachment points for your tow bar.

- RM-521450-4
by:

Good product. Fit as explained. 663103



- RM-521450-4
by:

Sal looked up my file and matched the tow plated to my toe bar I bought from them several years back. Service is great. I had my parts by noon two days later. I have ordered parts for 8 years and never was disappointed. Thanks Etrailer andsalesman Sal. 549773



- RM-521448-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


All was delivered and I have installed it. Only thing wrong with the RM-521448-4 Roadmaster Crossbar-Style base plate kit was that one of the 1-*1/2" x 3"threaded backing plate would not tighten down. Had to toss it and put in heavy duty washer and Nut and tighten it down. Otherwise great product and easy to install. 658514



- RM-523182-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


Great product with good directions to peel back the "plastic" front end parts to reach where they mount. Plus etrailer staff backup to answer any questions that may come up. 429596



- RM-523182-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


Bought the base plate for my new 2016 GMC Canyon. Installed it myself, went real well. 316743


Comments

Great, no issues

Wayne R - 11/15/2017

30937

- RM-521448-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


I’ve towed my Jeep Wrangler, using this base plate and Roadmaster Falcon 2 tow bar, over 5000 miles and it has performed flawlessly. 572901



- RM-523182-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


I have ordered many products from etrailer and their customer service is 12 on a scale of 1 to 10. I ordered my products on the weekend and they were delivered on a Wed. I also later found cheaper prices on a few of the items and submitted the info for the 110% lower price guarantee and received the refund within a few hours. These folks are just plain great! 450640



- RM-523182-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


This was my 4th install of a RM base plate. Armed with several variants of written and video instructions we carefully started disassembling a new truck... Like the others base plates, everything fit. I have a 2018 GMC Canyon Denali 4x4 and the instructions were for a Chevy Colorado/Canyon/ZR2 and were off a bit. The GMC Denali install seems to be closer to the Chevy ZR2. In a few cases the trim fasteners and locations differed but all in all, reasonably similiar. Some differences: I did not have to remove the air dam. The fascia was notched at the bottom. Criticism: The width of vertical receiver plate introduced a gap between the 45 degree bumper core end brace and the truck frame. I might weld or bolt a shim to compensate. 579349



- RM-523160-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


Received product in very quickly. My son & I installed it on 2015 Equinox only took about 2 & a half hour with no problems. Great directions & videos. 474667



- RM-521424-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


well I finally put my tow bar base plate on. I'm 82 years old so I had my doubts as to weather I could do this so I checked out a location that could have one this job for me but they wanted a hundred and fifteen dollars an hour labor so I said to hell with that . I looked at the directions that you sent with the Base Plate and said to myself, I can do this. Well I did it. Your instructions were dead on and I had no problem at all, In fact I hade a little fun doing it. Thanks a lot It's going to be great. 486722


Comments

Its going great

Neal - 03/20/2019

50794

- RM-521559-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


The instructions were good and the passenger side of the base plate fit perfectly, but the driver's side did not. Had to 'drill out' the holes on the top and the inside, because the pre drilled holes we off about 1/8 inch. This misfit resulted in a lot longer to complete the project. 58787



- RM-523184-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


I installed the trailer hitch first and it was quite simple, total time about 1 hour. Next I installed the EZ4 base plate kit on our 2017 GMC Terrain, a little bit more difficult, but the step by step video made the whole process much simpler, in fact, I kept my laptop in the garage while I was doing the installation and stopped/started as it did the work. I can't thank you enough for the video clips, they are a tremendous help. We will be leaving in a week or so, can't wait to try it out. 515670



- RM-521448-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


I purchased this EZ4 base plate to work in conjunction with the Falcon2 tow bar. It fit perfectly on my Wrangler Unlimited, and is tucked mostly out of site when not used. The two baseplate arms bolted to the cross bar of the Falcon2 are easily removed and stored away when not in use. Installation because of the weight and tight fit to the Wrangler frame, was found to be much easier with two people. 554274



- RM-521559-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


What a great company to do business with. I was going to have my Son do the install but with the help from the Pro’s at etrailers I did it my self with no problem. I take my Hat off to, Michael H, Nicole, and Amy who gave me advice and answered all my questions. Thanks again 59196



- RM-521567-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


Works very well on my 2012 Honda CRV. However, the wiring holder is obtrusive so I cut it off and used an alternative mounting method fo the wiring. Medium difficulty to install, but if you're handy and have the correct tools, it takes a couple of hours or so. Be sure to also buy the rubber inserts for looks and protection when not being towed. 334883



- RM-523162-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


THE SALES PEOPLE @ ETRAILE ARE GREAT TO WORK WITH. THE SUPPORT I NEEDED TO INSTALL THE BASE PLATES WAS OUTSTANDING. THANK YOU, DOUG. 109509


Comments

Doug, just purchased a 2014 Cadillac srx 4 looking for base plates which you have. Now I have a roadmaster falcon tow bar that I tow my jeep wrangler with, will I have to change anything besides the new base plates to tow the SRX ???

-- comment by: Henry R - 06/05/2014

4687

I have checked with our contacts at Roadmaster and in addition to the EZ Base Plate kit that is confirmed as a fit for your 2014 Cadillac SRX, you will need a set of the Quick disconnect plates # RM-222
Roadmaster Tow Bar Quick Disconnects - Car Side Only
$44.95
to connect with your Falcon Tow Bar. These will mount to your Cadillac base plate and will connect to your Falcon Tow Bar crossbar. These quick disconnects will allow you to easily change from towing your Jeep to your Cadillac. In addition to your tow bar and base plates, please make sure that you have all the necessary components needed for a complete flat towing system for your Cadillac like: safety cables, lighting, and supplemental braking. Depending on how you have things set up for your Jeep you maybe able to transfer all of these components to your Cadillac.

-- Rachael H - 6/9/2014

Comments

You would not even know that the car was behind our motorhome. I am very pleased with the help I received. Thank you, Doug.

DOUG - 12/08/2014

7935

- RM-523182-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


Product is high quality. George J kept me informed of the progress of my order my order was easy to track. I am very pleased with my purchase at an excellent price. Thank you etrailer for your excellent service and dependability 355612



- RM-521567-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


Called other supplier who wasn't aware of Roadmaster EZ4 Base Plate Kit. Went to etrailer.com and immediately found the Roadmaster EZ4 base plate listed on the etrailer.com web site. Called etrailer to confirm. Customer service representative was very courteous and knowledgeable of Roadmaster products. Placed order and received it promptly. 144060



- RM-521424-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


This base plate bolted up quickly to my 1997 Jeep TJ. Instructions were simple and truly made it easy. No problems after a year of installation, close to 4000 miles of towing. 573476



- RM-521440-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


Product installed easily hardest part was finding drill sharp enough to drill holes. Took about 4 hrs at a 75 year olds pace. Looks nice and fit my existing tow bar with no problems. You may want to remind buyers they need a plastic pop rivet tool, not easy to find in local auto stores. I took advantage of my friend who owns a body shop, it took 2 minutes. 444111


Comments

Still towing my car works great. Very satisfied only problem I had was my wife panicked when she saw front of car on lawn while I installed brackets.

Bill F - 10/19/2018

44806

- RM-522114-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


Excellent service and product. Purchased a tow bar bracket for a new Kia Soul. The instructions were easy to follow and the bar fit the car without having to modify anything...I have towed the car several times, and the connection to the tow bar is easy... 357476


Comments

Worked fine, have since sold vehicle

Alan - 03/23/2018

36356

- RM-523182-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


We purchased this item on a Friday and it went on sale on Sunday. This company is excellent to deal with. They credited my account within an hour. Thank you etrailer! 574770



- RM-521448-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


Great product for my 2014 Wrangler. Good materials, solid attachment to vehicle, and looks good. The e trailer installation video was great for assisting installation. Made the install much quicker and easier. The most difficult procedure for me was disconnecting the wiring harness on the back of the bumper. An old tack puller (or tool of similar design) would have been great for leveraging the pins out of their holes. Cutting the air dam was a slow process to ensure I didn't cut too much. A paper template to mark where to cut the air dam would make this process much simpler. Again, I can't emphasize enough how great the installation video was for making the steps easier. 126011


Comments

This item works great. Have towed about 4500 miles using it. I couldnt be happier with the results.

Bob T - 04/20/2015

10963

- RM-521447-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


Extremely fast shipping, ordered on Sunday, received the base plates and other parts on Tuesday. (MO to NW Chicagoland) . This was the free shipping option. Thank you Etrailer. 202365


Comments

Your towing brackets,self installed have been working A OK for about 3000 towing miles on my 2015 Cherokee. I like them very much and they are build solid.

Siegfried D - 06/09/2016

18478

- RM-521559-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


Purchased a Stowmaster baseplate for my 2009 Honda CRV. The quality construction and welding on this base plate is superior! The engineering was excellent and the assembly fit perfectly! The installation instructions were very detailed and the color photos made the project easy and straight-forward! Installation took about 2 hours but was not difficult. Shipping was on time and quick! Highly Recommend etrailer!!!! 491174



- RM-521559-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


Installed this base plate on my 2007 CR-V today. Instructions were clear and very helpful. Had to drill out two holes through frame to install longer bolts. Only caution here is when trying to torque these two bolts , the hollow frame channel will begin to deform before torque spec is reached. Hope the Loctite holds! 470677



- RM-521567-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


I received the RM-521567-4 very quickly with free shipping. I watched the Base Plate Kit video several times before I started the install. I Drove my CR-V upon a set of ramps and started tearing the front end off. Actually it was easier than I thought after watching and listing to the video. The only hard part was drilling the 1/2 inch hole in the sub-frame of the car. I did not have to trim the vertical frame bolts off as shown in the video in my 2013 CR-V. It took me 5 hours to install the Kit on my Honda. I have installed the base plate kit on my 2 previous TOADS, but I think If you can use a few tools this is not a very difficult job. Watch the video for taking the fascia and grill off it's a little tricky, but it snaps right off and back on just like the video. Pay attention where the plastic trim clips go back in the front and fender well. This new version (-4) with the twist on and off base plates is better than the older version (-1) I had before. It is much easier to put on and off the car for towing. My CR-V is black so with the plates off you can barely see the receivers. Great product! 207980



- RM-523182-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


The units went on my Chevy truck great and they work well the only problem is I can't take off my tow bar unless I unbolt it from the base plates so I have to leave the unit on all the time. It would take 4 bolts to remove . Then I could unlock the base plates and turn them in order to remove them. 443465


Comments

The base plates they are working fine I dont remove them they stay on all the time it has been 2 years now the tow bar that I use is bolted on so I would have to remove them to get the s out I should do this some time so they dont rust in place but real nice right now .

Jim L - 10/18/2018

44776

- RM-521448-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


This company has provided the best customer service and support I have had since the 60's Thank you all at etrailer Kevin 575189



- RM-521448-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


Bought this product from etrailer with free shipping it was cheaper than I could get in town.. The baseplates are perfect for our 2014 Jeep Wrangler and our stowmaster 5000 tow bar. The unit is built to last with heavy steel plate and nice welds. Installation is pretty easy, you just have to remove the plastic air dam, and trim it up. Etrailer has a great video going over the install. I am pretty picky, and I didn't care for the way Roadmaster has you cut the air dam. If you take your time and look at photos of the way they cut it when you have your air dam off you can make it look much better. I have enclosed pictures of my install so you can see the difference. I am very happy with the ez-4 baseplates and etrailer 365012



- RM-521448-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


etrailer service was great. Received my Roadmaster base plate in 3 days. The directions from Roadmaster were fair, but etrailer's video was excellent. I had trouble mounting my base plate as the space between the two baseplate ends were too tight. I needed to use a floor jack and bottle jack to get it on. Once it was in position everything went together fine. I trimmed the Jeep' air dam differently keeping the ends that Roadmaster wants you to cut off. I think it looks better. I also had to modify the center cut in the air dam to accommodate the breakaway switch I have. 447255


Comments

Base plate has been working out great. Easy putting on and taking off.

Jeffrey - 10/29/2018

45171

- RM-521440-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


This is an nice unit and the instruction included were spot on. It is very scary to rip the front end of your toad off to install a tow kit. But, nothing went wrong and the parts are great. Should be easy to remove and install when needed. One improvement would be a better way to cut out the two grill parts for the tow extensions. I finally toss the originals and left open holes. It looks find. And bought new closures for the time that I decide to change the rig. If Road Master had produced a templant, I might have had something that I would have used. as it was, I screwed up the closure too much to use. 419521


Comments

they work great. I changed to a 2018 Jeep Grand Cherokee and had the dealer switch over. Still work perfectly. Using them again in Oct.

Steve F - 08/15/2018

42353

- RM-521452-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


Heavier than the base plates for my 2015 Ram 1500 which really surprised me. I haven't installed it yet so I can't talk about ease of instillation. 667792



- RM-521452-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


Towing Connections DON'T HAVE TO BE UGLY! (see photo) I bought a new 2019 4x4 Jeep Cherokee Limited with the Active Drive II transmission. It included the Technology Group option with Adaptive Cruise Control, etc. I then bought the corresponding Roadmaster baseplate (521452-4) to couple with our old Falcon All-Terrain towbar from a previous Jeep. I installed the new baseplate myself but it took a lot longer than the quoted two hours. This was partially because I was new at it. But mostly it was because the baseplate parts didn't all fit correctly: the driver-side rear brace was too wide, and two of the holes on the passenger side of the main receiver brace were off by half the width of the holes. These problems took special, expensive tools to correct because the parts are made from 1/4" hard steel. The other major factor was that much of the Roadmaster's instructions were not correct for my Cherokee even though it was the same model and year. There were several instructions that were no longer correct as well as having steps for removing parts that didn't need to be removed. A lot of time was wasted trying to sort through the instructions. Overall, between trying to reach Roadmaster's tech support, trying to find a source for the recommended tools, and doing the actual work per Roadmaster's instructions, days were wasted. From Roadmaster, the baseplate kit arrived with the paint chipped/scraped off in many places such that the parts were already starting to rust. To make it so the paint on the towbar assemblies – including the old, rusty towbar – would hold up better, I rounded all the sharp corners/edges ... especially those that regularly strike each other when getting ready to tow. I then primed and repainted the parts. After that, I focused on retaining the looks of the Cherokee's front end. For expediency, a typical towbar installer will attach all the connection components such that they stick out in front of the fascia. That's quick and easy but the results look pretty ugly. Instead, I spent some time – and about $10 on the following – to make the installation look professional (see photo). CAPS for the receiver arms were created to protect them. (The insides of the arms were already rusting even without ever towing ... or even driving in the rain.) I made the caps from 1-1/4 PVC threaded plugs (Lowe's #51526). The threads and embossed writing on the tops were ground off with a belt sander. On what had been the threaded part of each cap, a groove was cut to hold an O-ring (A5568 size 125) so the caps fit snugly into the receiver arms. The BREAKAWAY SWITCH was mounted behind the grill on a wooden block attached to the Main Receiver Brace's crossbar; that allowed it to face out yet stay hidden. A trim ring from a bathroom-sink-drain assembly was painted black after the threaded part was notched a little to accommodate the switch's junction box. The silver split-ring was replaced with a black (memotite) key ring. The 6-PIN SOCKET (Roadmaster 910030-7) was mounted on the two stems that stick out from the baseplate's main receiver brace. However, I bent, angled, and shortened both stems so the socket would sit flush along the curved grill's centerline. I also drilled the holes deeper into the ends of the two stems so I could use longer (1"), #10, self-drilling screws. The screw heads were painted black. All the WIRES were placed inside black, heat-shrink tubing and tucked out-of-sight using zip ties. Additionally, with the hopes of keeping the paint from being chipped away while traveling, I added material to take the play out of the Quick-Disconnect parts. To prevent the crossbar's QD bases and the QD mounting brackets from hammering metal against metal, I glued four small rectangles of EPDM rubber (i.e., 45-mil (3/64") pond liner) onto the horizontal flat areas where they rest on each other. And, to further eliminate any bouncing, I slipped a thick, rubber grommet onto each of the two upper, vertical, mounting-bracket pins before I inserted their linch pins. That $3 investment significantly quieted the towbar while promising to eliminate a lot of the typical paint chipping and rusting. (With any luck, Roadmaster will see this review and correct/improve their products accordingly.) 666401



- RM-521882-5
by:

Review from a similar Roadmaster EZ4 in Base Plates


Easy installation. The instructions and video they provided where very helpful. Customer service was VERY good and seemed genuinely concerned that I got what I wanted and needed. I would buy from them again. 664715



- RM-524431-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


I installed all the products that were purchased from etrailer.com with the assistance of the videos. It was helpful and it saved me from having to pay someone to do the work for me. etrailer.com is a great website to purchase all one's needs for towing equipment. Thank You 665682



- RM-521446-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


Fit well. Videos were very helpful. Medium skill level required to install. Some modification of body parts required. 660301



- RM-521424-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


I am not quick to review a product, it's been over a year since I purchased and install this hitch. After using this for a year, I found this to be excellent. Absolutely no problems. My wife and I installed it with no problems at all,,, easy to do. The videos was detailed, letting feel comfortable in doing the job. Sadly, selling the vehicle,, now we don't have it any longer. However,,, With our new vehicle, I am again going to purchase from this same company. This fit our 2004 Jeep Wrangler X 658388



- RM-52923-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


Very easy and simple Installation, Bolt on and couple drills, Very strong and it's not sticking out up front, it's actually hidden. I Liked very much and that's why I bought second one. And looking to by another one in the close future. Good Job Guys. 654223



- RM-521440-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


Works like a charm. 652434



- RM-521448-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


Fit perfectly. 651801



- RM-524443-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


THE PRODUCT WAS AS ADVERISED. THE FIT WAS GOOD AND THE INSTRUCTIONS WERE FIRLY THOUROUGH. I INSTALLED THE BASEPLATE MYSELF, ALTHOUGH I AM A BODY SHOP OWNER OF NEARLY 40 YERARS AND HAD EVERYTHING NEEDE TO DO THE INSTALL IT WAS STRIGHT FORWARD. 642721



- RM-523162-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


Easy installation and simple quick disconnect feature is very handy. 641429



- RM-521451-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


Fit perfectly. Installation easier then I expected. Snapping the front bumper facia from my 2019 Jeep Cherokee a little more difficult then the instructions would have you believe. Takes some effort to pop it away from the vehicle. That is the only snag. 639337



- RM-521448-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


Delivery was excellent and extremely quick. Arrived in great shape within a couple of days after order and I ordered it late in the day. The website video was great because it showed exactly what was involved and how to do it. I asked questions and got prompt answers. Have not installed yet but after I do will share pictures of installation of unit on 2017 Jeep Wrangler Unlimited. This is the third unit I have ordered from these fine people, all with excellent results. If need be will order future needs from them. 633423



- RM-523182-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


We have been RVing since 1986. When we started towing a car we have used only Roadmaster Tow Bars and baseplates. 633278



- RM-524431-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


Too about 4 hours total to install. All materials and parts were included. Would highly recommend to anyone looking to flat tow a vehicle. 629355



- RM-523193-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


product is excellent very easy to install install in my driveway in about 6-8 hours over two day period .all bolts and hardware matched up and fit properly . used three times with all good results .excellent install video .watched two or three times to get everything right . 628615



- RM-521569-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


We love the setup! 628150



- RM-523184-4
by:

Review from a similar Roadmaster EZ4 in Base Plates


It was a lot of work installing on my 2016 Equinox. (done in my 2 car garage) So far with minor adjustment, I'm happy with it. Have towed it about 1,700 behind the MH with out any problems. 615869


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Ask the Experts about this Roadmaster Base Plates
Do you have a question about this Base Plate?


  • 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...

  • Base Plates for a 2019 Jeep Wrangler Unlimited JL with ACC
  • For your 2019 Jeep Wrangler Unlimited JL with the adaptive cruise control (ACC) you can use the Roadmaster EZ4 Base Plate Kit part # RM-521450-4 which is a confirmed fit. If you have a Blue OX tow bar then you can still use it with this base plate kit but you will also need the Roadmaster Tow Bar Adapter part # RM-032. The issue with ACC is in regards to the location of the sensors/brackets which Roadmaster has deemed is not an issue while using the above base plate kit.
    view full answer...

  • Difference Between Roadmaster EZ4 and EZ5 Base Plate Kits for 2019 Jeep Wrangler Unlimited
  • The main difference between the EZ4, part # RM-521450-4, and EZ5, part # RM-521450-5, base plate kits is how they connect to the tow bar. The EZ4 kit uses Roadmaster's Quick Disconnects that are included with a lot of their tow bars. The EZ5 kit doesn't use the Quick Disconnects but uses pins and clips and clips instead. The tow bar's crossbar is used with the Quick Disconnects of the EZ4 but with the EZ5 the lugs of the tow bar fit directly into the base plate brackets. Take a look...
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  • Parts Needed to Flat Tow 2018 Jeep Wrangler Sahara Unlimited JL
  • I'd love to help. The first thing you need is a base plate kit confirmed as a fit for your 2018 Jeep JL Wrangler Unlimited. For that we have the # RM-521450-4 from Roadmaster. 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 All Terain, # RM-522. This has non-binding arms which makes the setup very easy to connect/disconnect. For lighting/safety...
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  • What is Difference Between EZ5 and EZ4 Roadmaster Base Plate Kits for 2019 Jeep Wrangler
  • For your 2019 Jeep Wrangler the EZ5 kit part # RM-521450-5 is a fit and what makes it unique to the EZ4 part # RM-521450-4 is that the EZ5 does not require you to use the crossbar that comes with Roadmaster tow bars like the Falcon 2 part # RM-520. The kit attaches directly to the tow bar whereas with the EZ4 you have to use the crossbar. Not having to use the crossbar makes connecting and disconnecting a bit more easy, but the trade-off is that you can't use a Rock Guard like the #...
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  • Mounting Location for Breakaway Switch on Roadmaster EZ4 Base Plates for 2018 Jeep JL Wrangler
  • The Roadmaster EZ4 Base Plate Kit # RM-521450-4 referenced in your question does not feature a mounting space for a breakaway switch. This is really the case for any of the base plate kits we have available as it's really best to attach the breakaway switch and bracket directly to the vehicle and not an external attachment like the base plates or tow bar. On your 2018 Jeep JL Wrangler your best option may be to attach it to the underside of the front fascia/bumper.
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  • Base Plate and Tow Bar Wiring Kit Recommendation for 2018 Jeep Wrangler JL Unlimited
  • For your 2018 Jeep Wrangler JL what you'd need is the Roadmaster Base Plate kit part # RM-521450-4 which is confirmed as a fit for your vehicle and will work well with your Roadmaster Stowmaster # RM-501. Then for wiring you'd need the part # RM-146 as a 6-way to 6-way coiled adapter and then for the wiring and diodes part # RM-152 and you'd be set.
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  • Base Plate Kit From Roadmaster that Fits 2018 Rubicon JL Unlimited Wrangler
  • I checked with Roadmaster and they have their Roadmaster EZ4 base plate kit part # RM-521450-4 as a confirmed fit for your 2018 Jeep Wrangler Unlimited Rubicon which will work great with your Roadmaster Falcon tow bart # RM-520. This base plate will require you use the crossbar that comes with the tow bar, but if you prefer a direct attachment the EZ5 part # RM-521450-5 will also work. For lighting you can use the diode kit, # RM-15267, and not have to worry about cutting into the taillight...
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  • How Long Does It Take To Install Roadmaster Base Plates on a Jeep Wrangler
  • The manufacturer, Roadmaster, does not provide an install time or even a range for that matter of their base plate kits such as the Roadmaster Crossbar-Style Base Plate Kit part # RM-521450-4 because there are just too many variables involved. That said, when we schedule installs for a set of base plates we generally allot around 4-6 hours in order to do so. The process for your Jeep Wrangler is a bit easier than most so I would say 4 hours give or take is a good estimate. If you are...
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  • Roadmaster Crossbar-Style Base Plate Compatible with 2018 Jeep Wrangler
  • The Roadmaster Crossbar-Style Base Plate Kit - Removable Arms # 1430-1 is not a fit for your 2018 Jeep Wrangler. You instead will want the Roadmaster Crossbar-Style Base Plate Kit - Removable Arms # RM-521448-4. This is a fit for standard factory bumper applications and is not compatible with the Hard Rock, Winter or 75th Anniversary models. This is a fit for the JK versions. If you have the JL version, then you will instead use the Roadmaster Crossbar-Style Base Plate Kit - Removable...
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Info for this part was:

Edited by:
Lindsey S
Expert Research:
Jameson C
Video Edited:
Chris R
Written by:
Ronnie R
Photos by:
Jeffrey L
Updated by:
Mike S
Updated by:
Isabelle B

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