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Roadmaster Crossbar-Style Base Plate Kit - Removable Arms

Roadmaster Crossbar-Style Base Plate Kit - Removable Arms

Item # RM-521453-4
Our Price: $485.00
You Save: $65.00
Base Plates

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Shipping Weight: 48 lbs
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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. 1-800-940-8924 to order Roadmaster base plates part number RM-521453-4 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-521453-4

  • Removable Drawbars
  • Roadmaster
  • 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.


  • 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 Roadmaster tow bars with use of quick-disconnect crossbar (910021-00 - sold separately)
  • Instructions and mounting hardware included
  • Made in the USA
  • Limited lifetime warranty

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.

521453-4 Road Master EZ4 Base Plate Kit

Installation Details RM-521453-4 Installation instructions

This Product Fits The Following Vehicles

Customer Satisfaction Score:

Customer Reviews

Roadmaster Crossbar-Style Base Plate Kit - Removable Arms - RM-521453-4

Average Customer Rating:  4.8 out of 5 stars   (867 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.


This was a straightforward install. The instructions were easy to understand and follow. All the necessary parts and hardware were included. It is pretty well hidden once installed. I highly recommend this base plate and etrailer.



I have towed the Jeep several times with no issues. So far so good.

2023 Jeep Wrangler 4xe

Ordered Product on Saturday afternoon, delivered on Wednesday, Installed on Friday. My 23 Wrangler Sahara 4Xe did take the spacer and washer on each side of the frame and was no problem getting them to fit. The lower passenger outside nut that holds on the bumper will not tighten down all the way, the flange of the factory nut gets caught in a slot in the base plate on that side. Will look into a standard nut to see if that will work - it is tight against the slot and holding.

2019 Jeep Wrangler

great kit to add a baseplate to my 2019 jeep wrangler. It takes several hours for one person to install, but if you follow the instructions and watch the video it's straight forward and easy to install.


I’ve had Roamaster for years and have worn out 2 tow bars. I’ve never had any problems with them.

Jeep Wrangler

easy to install. After 1 year not rusting at all. On a wrangler they are almost invisible compared to Blue Ox which a friend has and the entire set up is on the front end 24/7 (cross bar)



as designed. No rust after 2 winters


Works great, it was not hard to install, instructions were easy to follow.


Installed these on my 2018 wrangler. Awesome instructions! Very happy with how it turned out. The videos in the web site are worth the watch.

2019 Jeep Wrangler

Great product and thanks to for the excellent videos detailing how to install the Demco Stay-In-Play Duo braking system. As a result of watching all of the available videos, I learned that there where a couple of different ways to install the system in our Jeep Wranglers. The first installation I did was in our 2019 Wrangler and that was super easy following the one video on your website. The second installation of the system was not as easy because our 2021 Wrangler has a manual transmission and required having to drill a hole in the firewall/floor board to run the wiring and vacuum tube from the passenger compartment to the engine area. If ever has an installation on a Jeep Wrangler with a manual transmission to perform, hopefully they will video tape that installation to guide customers with Jeeps with manual transmissions. I think's idea of mounting the control box on the fuse box is by far the cleanest and easiest way to install the Demco braking system.
I also followed's videos for installing the brake light system and the base plate on both our Wranglers and could not be happier with them. Thanks etrailer for all you offer.

2020 GMC Terrain

Recently I ordered a Roadmaster Sterling All Terrain Tow Bar (RM-576) and a Roadmaster Crossbar-Style Base Plate Kit (RM-521453-4). The included Roadmaster installation instructions were very good and easy to follow. A few minor questions came up during the installation, but eTrailer's excellent installation video by Shane cleared up any confusion. Overall the installation of both the base plates and the tow bar was pretty simple and straight forward. I think eTrailer's product and installation videos are a great help in picking the right item and installing it.


Great product. This is the 4th unit I have purchased and used on different vehicles. When I purchased the wrong unit, etrailer replaced it with the correct one. Between the installation instructions that come with the kits and the available videos on the website, installation is relatively simple. I would and have recommended etrailer to a lot of people.

2019 Jeep Wrangler Unlimited

Solid product well make easy install

Jeep Wrangler

Absolutely great, easy install and hitches are hidden when the tow arms are removed , takes seconds by pulling the pin and a simple twist , I highly recommend buying this product, Installed in 2 hours on a 2020 jeep 2 door wrangler.

2020 Jeep Wrangler Unlimited

base plates are well made very heavy duty, had to do some slight modifications on the plastic shield but other than that worked out well, now i have to buy a tow bar


Thank you Steven for a well done job.
representatives at eTrailer have always done a great job in my dealings over the years.


Quality was excellent. Very impressed.

2021 Jeep Gladiator

Arrived on time and easy installation. Thanks


This was easily installed and works gre at.


Great customer service

2021 Jeep Gladiator





On line shopping and order processes are easy. On line pictures and videos are most helpful. Ordered and received in 3 days. Thank you for your outstanding service.

2021 Jeep Gladiator

This was shipped from the manufacturer and quicker then expected A+ !!! Thank you


fit well


Works fine installed nicely


Product fit well and mounted with very few issues.



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Info for this part was:

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