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  1. Base Plates
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Roadmaster Crossbar-Style Base Plate Kit - Removable Arms

Roadmaster Crossbar-Style Base Plate Kit - Removable Arms

Item # RM-521424-4
Our Price: $434.95
You Save: $93.96
Base Plates

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Shipping Weight: 40 lbs
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Roadmaster's crossbar-style brackets provide attachment points for the quick-disconnect crossbar on your tow bar. Twist-lock arms are virtually invisible, easy to mount, and simple to remove. Installs on your vehicle's frame. 1-800-940-8924 to order Roadmaster base plates part number RM-521424-4 or order online at Free expert support on all Roadmaster products. Great prices and Fastest Shipping for Roadmaster Crossbar-Style Base Plate Kit - Removable Arms. Base Plates reviews from real customers.
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Roadmaster Base Plates - RM-521424-4

  • Removable Drawbars
  • Roadmaster
  • Twist Lock Attachment

Roadmaster's crossbar-style brackets provide attachment points for the quick-disconnect crossbar on your tow bar. Twist-lock arms are virtually invisible, easy to mount, and simple to remove. Installs on your vehicle's frame.


  • Crossbar-style brackets provide attachment points for your car- or motorhome-mounted tow bar
    • Compatible with Roadmaster tow bars with use of quick-disconnect crossbar (910021-00 - sold separately)
    • Required if you have a Sterling tow bar
  • Hidden bracket design provides improved aesthetics compared with standard brackets
    • These brackets sit far for a supremely clean look
  • Twistlock 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
  • Instructions and mounting hardware included
  • Made in the USA
  • Limited Lifetime Warranty

The drawbars, or front arms, on the crossbar-style 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.

521424-4 Road Master Cross Bar Style Quick Disconnect EZ-4 Twist Lock Base Plate Kit

Installation Details RM-521424-4 Installation instructions

This Product Fits The Following Vehicles

Customer Satisfaction Score:

Customer Reviews

Roadmaster Crossbar-Style Base Plate Kit - Removable Arms - RM-521424-4

Average Customer Rating:  4.8 out of 5 stars   (858 Customer Reviews)

Roadmaster's crossbar-style brackets provide attachment points for the quick-disconnect crossbar on your tow bar. Twist-lock arms are virtually invisible, easy to mount, and simple to remove. Installs on your vehicle's frame.

2019 Chevrolet Equinox

The Jeep project went very well everything fit great and worked well. I really love Roadmaster products and quality and your company is the best place to purchase them. I sold the Jeep and replaced it with a new 2019 Chevy Equinox 2.0 L AWD and just purchased and installed the following items from you and installed them, RM-156-25 & RM-156-75 Battery Charge Line Kit, RM-146-7 Flex Coil Kit, RM-523193-4 EZ4 Plate Kit, RM-88333 Custom Seat Adapter, RM-751489 Stop Light Switch Kit and a RM-98160 Second Vehicle Brake Kit w/brakeaway. All these parts were in stock and arrived quickly and normal with you people, I really enjoy the o-line vidios as I do all my own installs. Thank you so much for your great service.
I will attach pictures of my install, you will see how I was able to fab a bracket and attach it to the existing mount on the base plate to mount the brakeaway switch and the air connection for the brake system.
I also fabricated a tail light bar as I didn't want to use mag-lights or splice into the factory lights and bulbs installed into the lights would not work as the factory brake lights will come on when the brake system is applyed and the turn siginals would not be visable.
Thanks for all you do, I would and do recommend you people to everyone who needs your products. Rob



Everything is working great, I installed a base plate kit, battery charging kit, stop light switch kit, second vehicle air brake kit w brakeaway and seat adapter on our 2019 Chevy Equinox and towed it about 14000 miles behind our motor home this past year and everything worked perfect not a problem with any product. These are great products, everything fit perfectly and performed perfectly. Thank you for great service and great products. Rob

2004 Jeep Wrangler

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.
With our new vehicle, I am again going to purchase from this same company.
This fit our 2004 Jeep Wrangler X


Arrived when stated


installed easily with no issues


Install the crossbar in approximately four hours start to finish 2001 Jeep Wrangler

2001 Jeep Wrangler

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.



Its going great

2005 Jeep Wrangler

The base plate was as described, very good quality product. Install was easy, instructions were easy to follow. I had to call during install to clear up a question, they did not have the answer but called roadmaster while I waited on the phone and got me an answer. Very pleased with product, service and follow through.


I received expert advice on the selection of the base plate needed for my Jeep Wrangler. The product came in a timely fashion and was in great shape when I opened the box. The instructions that came with it gave step by step instructions and great pictures. I cannot think of anything that I was disappointed with.

1997 Jeep TJ

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.


Will order from this company again, the sales person Emily was excellent, product fit perfect,


Great to work with!They also get back with you in a timely fashion.

2002 Jeep Wrangler

Perfect fit for my 2002 Jeep Wrangler. Makes hooking up to tow easy. There was some drilling that had to be done to the Jeep frame, but I already knew that before purchase. Etrailer was great and I will purchase here again.


This base plate work great with my Jeep Wrangler Sport for towing behind RV. Thx,


Very satisfied with my order


I love this product. Can hook it up without my husbands help.

1998 Jeep Wrangler

Good complete kit. Took about 4 hrs to do. Hardest part was drilling the three holes. Shipping was extremely fast. Ordered on Monday and arrived on Wednesday. Great company.

1998 Jeep Wrangler

Received it on time. Very easy to install, mounts up and out of the way, just make sure you have a sharp drill bit. Great product

2002 Jeep TJ

Response time was to be expected. Product fits with no additional modifications and easy to use instructions.
I would definitely use and recommend y'all again.


Worked as described very happy with the purchase


We are very happy with our towing equipment. We have used it a lot this past year with zero problems.


Thanks for your help Troy...Fits perfect


Shipped fast. EZ install
Haven't used

2005 Jeep TJ

great fit easy install .Best service ev er.



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