Roadmaster Crossbar-Style Base Plate Kit - Removable Arms

Roadmaster Crossbar-Style Base Plate Kit - Removable Arms

Item # RM-521448-4

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RM-521448-4 - Twist Lock Attachment Roadmaster Base Plates
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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-521448-4 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.
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  • Reviews (357)
  • Q & A (96)
  • Videos (6)
  • Photos
  • Why etrailer?

Roadmaster Base Plates - RM-521448-4

  • 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.


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
  • Integrated mounting points let you easily attach an electrical connector plug or bracket (sold separately)
  • 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.



521448-4 Road Master EZ4 Base Plate Kit

Replaces 1432-1



RM-521448-4 Installation InstructionsInstallation Details RM-521448-4 Installation instructions

This Product Fits The Following Vehicles

2018 - 2018 Jeep JK Wrangler standard factory bumper - no winches or guards

2018 - 2018 Jeep JK Wrangler Unlimited standard factory bumper - no winches or guards

2010 - 2017 Jeep Wrangler standard factory bumper - no winches or guards

2010 - 2017 Jeep Wrangler Unlimited standard factory bumper - no winches or guards




Video of Roadmaster Crossbar-Style Base Plate Kit - Removable Arms


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




Video Transcript for Roadmaster Base Plates - Removable Draw Bars - RM-521448-4 Review

Today we're going to be taking a look at the Roadmaster Easy 4 base plate kit with removable arms. Now, the Roadmaster Easy 4 twist lock series brackets are going to be virtually invisible on your vehicle. They're very easy to mount and simple to remove. The receiver base, which is this long bar here with all the mounting points, that's going to mount to the frame of your vehicle and then the brackets are these 2 components up here. These are going to install to the receiver base to provide attachment points for your tow bar. The brackets can easily be removed when not in use, which is going to give your vehicle a very very clean look.

This product is designed to fit certain years and models of the Jeep Wrangler and Wrangler Limited that aren't equipped with after market bumpers, winches, and guards. The hidden bracket design of the unit is going to provide improved aesthetics compared with standard brackets. The Easy 4 brackets are going to sit even further back than Roadmaster Easy and Easy 2 brackets, which is going to give your vehicle supremely clean look. The draw bars attach and remove quickly and easily. The arms are going to lock into place in the brackets. Then on each side, you're going to notice that we have a built in pull ring.

That's going to let you unlock the arms so you can twist and remove them easily from the main unit right here, the bar that mounts to the frame. All you have to do is pull on that pin, rotate the bracket, and then it removes from the unit very easily. To install it, just make sure the bracket's rotated sideways. Push it in, rotate, and then you'll hear it snap into place. That means that it's locked to the main unit. Really nice design.

Very easy to use. Very quick to use. When we're looking at the construction of the unit, it's going to be a computer cut all steel construction, which is going to provide exceptional strength and durability. Everything that's steel is going to have a nice, black powder coat finish on it, making it very strong and durable, as well as highly resistant towards rust and corrosion. On the ends, there's going to be little holes.

This point right here is located on the same point on the other side. That's going to be an attachment point for your safety chains. That way you can easily get those connected. When it comes to the installation of the unit, it's a pretty simple installation, meaning that this does not require any welding. The custom base plates ensure a perfect fit for your vehicle. This is going to come with very detailed instructions as well as all the mounting hardware that's necessary for your installation. Now, when installing this, it does require that you remove the 6 plastic fasteners attaching the air dam to the fascia, and it's going to require a little bit of trimming of the air dam for the brackets to come through. The unit's also going to include a mounting plate. That's going to be this little unit right here. This attaches to the rods with the supplied hardware, and that's going to provide an attachment point for your electrical plug, that way it's easily accessible here at the front of the unit. This is compatible with quick disconnect and all Roadmaster tow bars. Now, one of the things I want to just mention and explain, is you're going to notice these rods that are attached to the vacuum plates. That's these 4 pieces right here. The rods will be removed after they're installed. They're simply there to make installation and placement of the backing plates easier. Again, the unit's a very strong, durable design. It includes all the necessary hardware. They do recommend using some Lock Tite on the hardware. That's not included with the kit, so you will need to provide that separately. Again, very strong, durable design. Easy to use. Simple to install when compared to other units. The product is going to be made right here in the USA. That's going to do it for today's look at the Roadmaster Easy 4 base plate kit with the removable arms.


Customer Reviews

Roadmaster Crossbar-Style Base Plate Kit - Removable Arms - RM-521448-4

Average Customer Rating:  4.8 out of 5 stars   (357 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-521448-4
by:
2014 Jeep Wrangler Unlimited

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-521448-4
by:
Jeep Wrangler

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-521448-4
by:
Jeep Wrangler

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-521448-4
by:
2014 Jeep Wrangler

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-521448-4
by:

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:

Easy install, works perfectly!! 696498



- RM-521448-4
by:

The Roadmaster base plate looks to be a well built product with good welds and fit. The instructions are clear and the base plate bolted right in. The tab for electrical plug was bent but easily straightened. I t could use some additional protection in shipping. 688227



- RM-521448-4
by:

Item isn't installed yet but the order and shipping was outstanding. My order arrived via UPS in just a couple of days. Great job. 682875



- RM-521448-4
by:

Fit perfectly. 651801



- RM-521448-4
by:
2017 Jeep Wrangler

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-521448-4
by:

Ordered, recievd,all parts were there,good and helpful instructions,links top help videos , have used the base plate many times 597734



- RM-521448-4
by:

Fit perfect and easy to install and torque all the bolts. Thank you etrailer. 579684



- RM-521448-4
by:
Jeep

I had no problems installing this. Still using it. I pull my 2011 jeep with my RV and it works great. 572976



- RM-521448-4
by:
2010 Jeep Wrangler

No complaints.Easy to install.Arrived no damage. 549908



- RM-521448-4
by:

Good customer service. Quality products 540613



- RM-521448-4
by:
2016 Jeep Wrangler Unlimited

EVERYTHING BOLTED UP PERFECTLY 540132



- RM-521448-4
by:

easy install and keeps me off the groun d. 528220



- RM-521448-4
by:
2012 Jeep Wrangler

Easy to install . Took me about an hour by myself and works great on my 2012 Jeep Wrangler. etrailer sent my exactly what I needed on 1st. order. 519051



- RM-521448-4
by:
2014 Jeep Wrangler

Ordered for a customer's Jeep Wrangler. Arrived quicker than expected which allowed us to get the guy on his way 3 days sooner than scheduled. The install went OK. Some variations from what was expected. Had to drill a couple of holes. The plastic valence didn't want to go back under the jeep because of the mount plate interference, but we made it work. The tow bar bolted up perfectly. All in all, very good. Happy customer. Thanks! 511261



- RM-521448-4
by:
2016 Jeep Wrangler

Well built, took about 3 1/2 hrs to install including cutting valance to fit . Only problem with instructions are , if your frame doesn’t have both holes at the top for the 5 1/2 bolt , you can’t drill the holes through from the inside without an angle drill. Also your dimensions on cutting the valance are way off. Suggest measuring for yourself before cutting !! I did. 505889



- RM-521448-4
by:

Great customer service! The unit arrived in 3 days with great tracking online. 478573



- RM-521448-4
by:
2010 Jeep Wrangler

Great product! Installation was a breeze with the included instructions. Can't wait to tow the Jeep behind the RV now. If I ever need another tow bracket etrailer will be my first choice. 469698



- RM-521448-4
by:
2017 Jeep Wrangler

Great quality product, performs as specified. Easy to install and use with my 2017 Jeep Wrangler. Added a Roadmaster Guardian 4000 to round off the install. etrailer customer service is great too!!! 464347



- RM-521448-4
by:

This is the third base plate that I have ordered from etrailer, as always shipping was fast and it fit perfect. 450205



- RM-521448-4
by:
Roadmaster

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-521448-4
by:

Have plate fit tight and all holes lined up perfect! Had it on in less than an hour. Have to thank Janice from etrailer for her expertise in getting the right application and getting it out to me as promised! Had two other wranglers 2001 , 2008 both took way more time and effort than this one. Great people to deal with!! 431437



- RM-521448-4
by:

Fits great and video was big help in self install. 431247



- RM-521448-4
by:
2013 Jeep Wrangler

With a little adapting for use with my tow bar the base plate is working fine. Had to add angle iron for my tow bar to bolt up to the base plate. 431064



- RM-521448-4
by:

works great no problems easy too install and take out 427225



- RM-521448-4
by:

Great product, great value for the money. Fast shipping. Easy to install. 413204



- RM-521448-4
by:

Received product very quickly. Seems to be very good. Having it installed this Friday and will know more 401500



- RM-521448-4
by:

Called Monday morning and was told the item went out Yesterday ( sunday) and because I paid for 2 day shipping it would be at my house Tuesday, it showed up Wednesday. 386410



- RM-521448-4
by:
2017 Jeep Wrangler

Product arrived earlier than expected which was great. Using the provided online videos and provided instructions, it installed without any issues. I like how it is mostly hidden when not being used. Setting up for a trip is a simple procedure. We plan on towing our 2017 Jeep Wrangler behind our Sunseeker Class C RV. 384441



- RM-521448-4
by:

Received the EZ Base plate kit in perfect condition. It was received in a timely fashion and I was able to track the order once the order process was complete. 376540



- RM-521448-4
by:
2014 Jeep Wrangler

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:

Easy to install if you are mechanically inclined....works great. 355311



- RM-521448-4
by:
2017 Jeep Wrangler

Very easy to install on my 2017 Jeep Wrangler Unlimited. Very fast shipping. 332444


Comments

All of the products have been very useful and performed perfectly.

John M - 01/14/2018

32968

- RM-521448-4
by:
2016 Jeep Wrangler

The processes ordering, packaging, shipping, were all completed without problems. The -4 baseplate kit for my 2016 jeep wrangler fit as advertised and connected to my road master 10,000 lb tow bar without a problem. Thanks, Ron C. 312774



- RM-521448-4
by:
2010 Jeep Wrangler

Excellent product that's very easy to use , I have over 20,000 miles and no wear or problems ! 306019



- RM-521448-4
by:
2016 Jeep Wrangler

The base plate kit install was straight forward with few problems. I would urge other installers to clean out the threads of all the nuts and verify that the bolts screw in easily. I had the wire break off prematurely on a top nut and was very fortunate to be able to resolve this dilemma. I also took the time to cut my rock guard more precisely so as to not remove any more than necessary. 280951



- RM-521448-4
by:
2016 Jeep Wrangler

Exactly as described. Easy to install, easy to use. Fits my 2016 Wrangler perfectly with no modification. 268258



- RM-521448-4
by:
2015 Jeep Wrangler Unlimited

Easy installation and easy to use. I have only used it twice but love it so far. 262892



- RM-521448-4
by:

Easy install to a point! Those wire nut attachments are necessary but don't hold good but I got it! Great service and shipping from etrailer. Always a pleasure dealing with them. 258367


Comments

Works great easy install

Dave B - 06/06/2017

24687
Comments

Works great easy install

Dave B - 06/06/2017

24688

- RM-521448-4
by:
2016 Jeep Wrangler

Perfect fit on my 2016 Jeep Wrangler Unlimited, easy installation. Good do it yourself instructions came with. 252782



- RM-521448-4
by:

easy to hook-up & unhook 244308



- RM-521448-4
by:

Went on as expected except I had to drill two holes for the middle bottom bracket. Looks great and works great. Shipping was fast,very happy with base bracket.I will pull behind our motor home. 239401



- RM-521448-4
by:
Jeep

This base plate bracket met my expectations in every way. Fits out of the way behind the bumper attached to the frame on my Jeep Unlimited. Well made and would recommend for anyone. 236272


Comments

Pulled my Jeep 10000 miles behind our motorhome last year and baseplate doing its job. Thanks, etrailer!

Martin S - 01/25/2017

22292

- RM-521448-4
by:

The install was easy enough but you need the right tools. Not for your average homeowner but if you are persistant you can do it . The hardest part was getting off the bumper and a trip to the tool store. The directions were good and if there is something you don't understand when reading them,all you have to do is get under the car and it will become clear 229159



- RM-521448-4
by:
2010 Jeep Wrangler

I'm giving it 4 stars instead of 5 only because of documentation. Need a video for the E4 bracket installation on a 2010 Jeep Wrangler. I did it all ... a diode wiring kit ... the tow bar and bracket installation ... and converted the Motorhome from a separate to a combined wiring system while adding a charge wire ... it took me two days. Very happy with the quality of the tow bar and bracket. 228917



- RM-521448-4
by:

this was really easy to do by myself! I used a floor jack to hold it up while aligning the bolts. the cutting of the air dam piece took the most time that and getting the nuts with the wire attached up in the frame channel and aligned. another super satisfied customer! thanks etrailer! 221325


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Ask the Experts about this Roadmaster Base Plates

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  • Difference Between Roadmaster EZ4 and EZ5 Base Plates for 2017 Jeep Wrangler Unlimited
  • Both the Roadmaster EZ4 Base Plate Kit # RM-521448-4 and EZ5 Base Plate Kit # RM-521448-5 will fit on your 2017 Jeep Wrangler Unlimited. The primary difference between the two designs is the way they attach to the tow bar. The EZ5 does not use the quick-connect crossbar which provides a cleaner look, but prevents you from using some accessories that mount to the crossbar such as a Rock Guard like the Roadmaster # RM-4000. If you are at all interested in using a rock guard or protective...
    view full answer...

  • Parts Needed to Flat Tow 2018 Jeep Wrangler JK Unlimited with Standard Bumper
  • We have just want you need. The correct Roadmaster base plate for your 2018 Jeep Wrangler JK Unlimited is the Roadmaster EZ4 part # RM-521448-4 which is confirmed as a fit. This will work great with your Falcon 2 part # RM-520 tow bar. If you needed lighting you could 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....
    view full answer...

  • Recommended Flat Towing System for 2016 Wrangler JK 2 Door
  • I'm happy to help get you everything you need for your 2016 Jeep Wrangler JK to flat tow it. You have done your homework so my recommendations will be in line. I recommend the Roadmaster Crossbar-Style Base Plate Kit - Removable Arms # RM-521448-4 you suggested which will utilize the crossbar of the Roadmaster Sterling All Terrain Tow Bar # RM-576. This is a great combination with the tow bar also having the wiring cord and the safety cables integrated. Then you will use the Hopkins...
    view full answer...


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Info for this part was:

Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
Jeffrey L
Video Edited:
Joshua S
Video Edited:
Jacob T
Video Edited:
Chris R
Written by:
Laura H
Installed by:
Cole B
Test Fit:
Randy B
Test Fit:
Brent H
Test Fit:
Shane H
Test Fit:
Robert C
Test Fit:
David F
Updated by:
Sarah W
Updated by:
Mike S
Updated by:
Isabelle B
Video by:
Zach D
Video by:
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Video by:
Michael B
Video by:
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