bing tracking image
  1. Base Plates
  2. Roadmaster
  3. Removable Drawbars
  4. Twist Lock Attachment
Roadmaster Crossbar-Style Base Plate Kit - Removable Arms

Roadmaster Crossbar-Style Base Plate Kit - Removable Arms

Item # RM-521559-4
Our Price: $436.17
You Save: $48.83
Base Plates

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

This item qualifies for Free Shipping
Shipping Weight: 52 lbs
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Customer Photos


Need help with installation?
Locate installers near me
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-521559-4 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.
  • All Info
  • Reviews (764)
  • Q & A (0)
  • Photos
  • Why etrailer?

Roadmaster Base Plates - RM-521559-4

  • 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.

521559-4 Road Master EZ4 Base Plate Kit

Replaces 1559-1 Roadmaster XL Base Plate Kit

Installation Details RM-521559-4 Installation instructions

This Product Fits The Following Vehicles

Customer Satisfaction Score:

Customer Reviews

Roadmaster Crossbar-Style Base Plate Kit - Removable Arms - RM-521559-4

Average Customer Rating:  4.8 out of 5 stars   (764 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.

2009 Honda CR-V

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!!!!

2007 Honda CR-V

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!


I purchased this hitch to go on my 2009 Honda crv, I found a video on youtube that showed how to mount it. I took my time but still had it mounted in 2 hours. I also like that I can remove the receiver very easily when I am at home or on the road. This is much better than having a dolly that you have to move around by hand. I would recommend this to anyone that wants to pull their toad all wheels down.

Still works great, I wish I had purchased it sooner.
Robert - 02/04/2020


This hitch installed on our 2007 CRV easily and has worked great over the past year. Installation was completed by myself with no other hands. I did block up one side of the hitch with wood to the approximate height to aid in mounting the other side. Vehicle back end was raised via car ramps. All mounting holes lined up fine. The associated brake & tail light wiring kit made wiring easy as well.


Excellent product, fit perfectly. The instructions were "on the money." It was obvious that the towbar baseplate was custom made for this car. Everything slid right into place without having to "man handle" any of it.


Excellent products, shipped as promised and arrived on time. I have installed all the products. Although it took me longer then a professional installer, I had little to no issues. The online installation videos for all the parts (which were attached to the online order status sheet) made it extremely easy to install. The videos were of a professional actually installing the equipment step by step. has a customer for life.

2011 Honda CR-V

I am truly impressed with the folks at etrailer. I felt like the personnel were completely committed to helping me make an informed and smart choice. The tutorials regarding the product were very helpful and informative. I have nothing but praises for etrailer and I will soon order the tow bar that will fit on my recently ordered tow bar base plate. I will HIGHLY recommend etrailer to family and friends.

2008 Honda CR-V

Manufacturer sent the tow bar quick disconnects w/o the backing plates and bolting materials. After contacting etrailer customer service, they jumped on it and quickly got the missing pieces shipped. This was not etrailer's oversight but they got it resolved promptly. Thanks etrailer!!


Base plate was complete with all needed parts, instructions were complete and easy to follow. The tow bar works great, and can hardly be seen , when not used. Would buy another if ever needed.


I couldn't be happier with my Roadmaster. The ease of hooking up and disconnecting, the sturdiness of the device. We are 3/4 timers in the RV and notice NO wear and tear. Fantastic! Worth every penny!


This backing plate for my CRV was exactly as described and the instructions were well laid out and clear. The job went smoothly without a hitch. Great product.

2008 Honda CR-V

Great product that fit the front of the 2008 Honda CRV perfectly. etrailer is the best to work with! Very client oriented! Highly recommend them as a vendor!


Took my time installing this and the instructions were very helpful.
I viewed the YouTube video, made notes, gained confidence and felt prepared.
Everything went well and the hardest part of the process was replacing the plastic fasteners in the fender well and the screws at the bottom of the fender.
The product appears to be good quality and fit better than expected.
Excellent communication and support.

Thank You

2007 Honda CR-V

Shipping and delivery was very fast. I had to enlarge a few of the holes on the brackets because they did not line up to the holes on the front of my 2007 CRV. That was the only thing that did not go smoothly. It was not a big deal, just took a little extra time to enlarge the holes with a Dremel tool. Other than that, great product.


I have loved ordering from products came with good videos and instructions. I felt secure in what I was ordering

2010 Honda CR-V

Instructions were very good for the installation on my 2010 Honda CRV. Fit and finish were good. Product arrived as promised. Minimal tools were needed, but installation with the vehicle on the garage concrete floor was probably a little more tedious than that on a lift. I would say that you do need some mechanical talents to do this on your own.


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.


The products I received was very good but the service I received from Etrailer was very good. I really appreciate your service. Frank Lemmons


Quick and easy.
While others did not
have it in stock, etrailer did, plus free shipping, fast delivery and packaged securely.
Matt was very helpful and knowledgeable. He knew exactly what I needed.


thank you for the quick delivery of part#1559,1 base plate & part #13555 hitch receiver. I will try to send picture of my installation. thank you !

2010 Honda CR-V

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

2011 Honda CR-V

It looked like it was going to easy to install but the base plate holes didn't match up with the auto holes. I had to do a lot of enlarging of holes. Once it was installed I had a lot of trouble putting the car back together.

2010 Honda CR-V

Product was exactly as specified in the ad and fit perfectly on my 2010 Honda CRV. Instructions were right on and easy to follow.


Exelent quality. fit and finish are class, the installation directions were fantastic with pictures of every step so you were not guessing. Everything went as the directions indicated and I completed the install in about 3 1/2 hours working alone.


I ordered a base plate for my 09 Honda, installed trouble free, priced right, arrived on time............

Show More Reviews

See what our Experts say about this Roadmaster Base Plates

  • Base Plates, Tow Bar, Wiring, Safety Cables, and Braking System to Flat Tow a 2007 Honda CR-V
    The first thing you will need to tow the 2007 Honda CR-V behind your Bounder motor home is the base plate kit, # RM-521559-4 that you have referenced. Next you will need a tow bar. I recommend the Roadmaster Tracker Tow Bar, # RM-020. You will also need the Roadmaster Tow Bar Quick Disconnect Kit, # RM-201, to allow removal of the front extensions on the base plates. You will also need a light kit as required by law. If you do not plan to tow the CR-V very often, I recommend a magnetic...
    view full answer...
  • Correct Roadmaster Base Plate Kit for 2011 Honda CR-V
    For your 2011 Honda CR-V, you will need the Roadmaster Base Plate Kit, part # RM-521559-4. This kit fits 2007-2011 CR-V models without a brush guard.
    view full answer...
  • Removing Roadmaster # RM-521559-4 From 2010 Honda CR-V
    According to the installation instructions for the Roadmaster # RM-521559-4, the front clip or bumper cover is removed to access the hardware holding the base plates in place. The radiator cover also needs to be removed. Keep in mind that during the original installation, the bumper core was removed and was NOT REPLACED. The base plate crossbeam takes the place of a majority of the bumper structure. If you are removing the base plates, the bumper core or a replacement (if you no longer...
    view full answer...
  • Compatible Base Plates For A Roadmaster Stowmaster 5000 Tow Bar On A 2009 Honda CR-V
    The Roadmaster Stowmaster 5000 tow bar is compatible with Roadmaster EZ, EZ2, EZ4, XL, and Classic vehicle-specific base plates. The Roadmaster Crossbar-Style Base Plate Kit - Removable Arms Item # RM-521559-4 is an EZ4 base plate so they are compatible with eachother and with your 2009 Honda CR-V
    view full answer...
  • Parts Needed to Use RoadMaster StowMaster Tow Bar # RM-501 on 2009 Honda CR-V
    Your Roadmaster StowMaster Tow Bar # RM-501 can be used with your 2009 Honda CR-V by addition of compatible base plates on the Honda. We offer the Roadmaster XL Base Plate Kit, part # RM-521559-4, which features no-welding installation using included hardware, and removable arms to allow your CR-V to retain most of its normal appearance when not being flat towed. These base plates are compatible with all Roadmaster tow bars. Flat towing requires a number of components besides the tow bar...
    view full answer...
  • Tow Bar Compatibility with Roadmaster XL Base Plate Kit RM-521559-4
    The Roadmaster XL Base Plate kit that fits your 2010 Honda CR-V is part # RM-521559-4. This base plate kit will work fine with ALL Roadmaster brand tow bars such as their Falcon 2 # RM-520 which uses the crossbar design and is also compatible with Quick Disconnects.
    view full answer...
  • Can Replacement Base Plate Kit Arms be Ordered for Roadmaster Base Plate for 2007 Honda CR-V
    Yes, you can order just replacement Roadmaster base plate kit arms with part number # RM-ARMS for the kit you have on your 2007 Honda CR-V # RM-521559-4.
    view full answer...
  • Receiver Covers Needed for RoadMaster EZ4 Base Plate 1-1/2 inch Square Receivers
    I believe you are looking for receiver covers for your RoadMaster EZ4 base plate receivers, like part # RM-521559-4. If so, you can use the RoadMaster Black Receiver Inserts for XL Brackets, # RM-200-5.
    view full answer...
  • Comparing the Roadmaster Direct-Connect and Crossbar-Style Base Plates for a 2010 Honda CR-V
    The Roadmaster Direct-Connect Base Plate Kit part # RM-521559-5 and Roadmaster Crossbar-Style Base Plate Kit part # RM-521559-4 are both fits for a 2010 Honda CR-V. The main difference between the two is that the Direct-Connect style connects directly to a tow bar like the Roadmaster Nighthawk part # RM-676. The Crossbar-Style connect to a crossbar and then to a tow bar like the Roadmaster BlackHawk 2 part # RM-422. I prefer the Direct-Connect as there is less to connect each time and...
    view full answer...
  • Recommended Base Plate Kit and Tow Bar for 2009 Honda CR-V
    The Roadmaster EZ4 Base Plate Kit # RM-521559-4 referenced in your question is confirmed to fit your 2009 Honda CR-V. We have not had a chance to install this kit on your 2009 CR-V so we do not yet have an installation video. These custom base plates allow for a simple installation with no welding required. All of the necessary hardware and installation instructions will be included. For a compatible tow bar to connect to the base plates, I highly recommend the Roadmaster Falcon All Terrain...
    view full answer...
  • Additional Parts Needed To Flat Tow 2011 Honda CR-V
    In addition to the Roadmaster Base Plate Kit, part # RM-521559-4, Roadmaster Falcon 2 Tow Bar, part # RM-520, safety cables and vehicle wiring, it is recommended to use a supplemental braking system. It is recommended and some states require that you use a supplemental braking system on the vehicle that is being flat-towed. For this, I would recommend Roadmaster Brake System, part # RM-9400, which will help reduce wear on your tow vehicles brakes and help you slow down. Before towing...
    view full answer...
  • Will Roadmaster EZ Hook Safety Cable Anchors Work With Direct-Connect Base Plate?
    Instead of using Roadmaster Direct-Connect Base Plate Kit - Removable Arms # RM-521559-5, you will want a quick disconnect option like Roadmaster Crossbar-Style Base Plate Kit - Removable Arms # RM-521559-4. This is compatible with Roadmaster EZ Hook Safety Cable Anchors (1 Pair) # RM-910653 and Roadmaster EZ Hook Replacement Safety Cable - 64" Long - 8,000 lbs # RM-910650. If you already purchased Roadmaster Direct-Connect Base Plate Kit - Removable Arms # RM-521559-5 for your 2008 Honda...
    view full answer...
  • Adapter Recommendation to Convert from Roadmaster XL Base Plate to Blue Ox Aventa
    Are you sure you don't have a Blue Ox part # BX7335? As that is a very popular tow bar by them. If so you would need the adapter part # RM-032 to adapt from your # 1559-1 base plates to that tow bar.
    view full answer...
  • Can I Use the Base Plates from a 2000 Honda CR-V on a 2006 or 2007 Model with the StowMaster Tow Bar
    Each of those model years will need a different base plate kit. If you purchase a 2006 Honda CR-V you will need base plate # 1555-5. If you purchase a 2007 you will need part # RM-521559-4. Both are brackets that will work with the Roadmaster StowMaster tow bar, part # RM-501. In short, you will need to replace the base plate kit with the appropriate kit, but you can continue using your StowMaster tow bar.
    view full answer...
  • Connecting Roadmaster 1559-1 Base Plates with Missing Weldments to Blue Ox Tow Bar
    I reached out to my contact at Roadmaster and he said that the Replacement Driver Side Arm C001477 will not fit your existing Roadmaster 1559-1 base plates. He said that the weldments for your particular base plate kit are no longer available so your only real option at this point is to replace the entire kit. If you were to go with another Roadmaster Base Plate Kit like part # RM-521559-4, which is confirmed to fit your 2007 Honda CR-V, you would still need to add the Adapter # RM-032...
    view full answer...
  • Correct Base Plates for 2007 Honda CR-V With StowMaster Tow Bar
    I believe you are speaking of the Roadmaster StowMaster Tow Bar # RM-501, as the Stowaway # RM-4000-40 is a storage system which slides over a tow bar. In order to use your StowMaster you would need the Roadmaster EZ4 Base Plate Kit # RM-521559-4, which is confirmed to work with that tow bar and will allow you to use the quick disconnect system. That system features brackets on the StowMaster and EZ4 plates which line up and are held in place with the pins that you referenced.
    view full answer...
    Image 1 for
  • Parts Needed to Flat Tow a 2008 Honda CR-V
    The base plates you will need for your 2008 Honda CR-V are the Roadmaster EZ4 Base Plate Kit, part # RM-521559-4. This is the same style of base plates as the # 1555-1 you have referenced. In addition to the base plates, you will also need a tow bar, safety cables, lighting, and a supplemental braking system for the CR-V. For a tow bar I would recommend the RoadMaster Falcon 2 Tow Bar, part # RM-520. I have included a link to the installation details and a video review on the tow bar. For...
    view full answer...
  • Parts Needed to Flat Tow a 2011 Honda CR-V With a 2000 Winnebago and a Stowmaster 5000 Tow Bar
    There are 5 basic components that you need to flat tow your 2011 Honda CR-V. You need a tow bar like the Stowmaster 5000 that you purchased, base plates, safety cables, light kit and a supplemental braking system. You should also check your owners manual of your CR-V for any specific towing procedures that must be followed like pulling fuses or adding a lube pump. For base plates, I recommend the Roadmaster EZ4 Base Plate Kit, # RM-521559-4, that you referenced. These base plates work...
    view full answer...
  • What Base Plate do I Need to use the Roadmaster StowMaster on my 2008 Honda CRV?
    We have a solution but the Roadmaster Direct-Connect Base Plate Kit part # RM-521559-5 has the direct connect attachment points that will not line up with the Roadmaster StowMaster Tow Bar part # RM-501 attachment points. Instead the Roadmaster Crossbar-Style Base Plate Kit part # RM-521559-4 has the required crossbar style connection and will allow you to attach your StowMaster without issues. For a wiring harness to operate the CR-V lights while you're towing I suggest a custom harness...
    view full answer...
  • Replacement Tow Bar to Flat Tow a 2007 Honda CR-V with Roadmaster Base Plates
    Wow, that's pretty crazy. I'd consider myself pretty lucky if I had a near-miss from a falling Redwood and only had damage to the tow bar. There's definitely a question there. You're looking for an easier to use tow bar to replace the Stowmaster, part # RM-501, that was damaged. You also need to make sure it fits the base plate kit already on your 2007 Honda CR-V. The base plates you have are likely the EZ4 kit, part # RM-521559-4, that works with the Stowmaster. For a hitch mount...
    view full answer...
  • Will I Need to Trim the Front Fascia to Install Roadmaster Base Plate # 1559-1 on a 2008 Honda CR-V
    Yes, you will need to trim the lower plastic fascia on your 2008 Honda CR-V to install this Roadmaster EZ4 Base Plate Kit, part # RM-521559-4. You may also be interested in the following products to complete your flat towing setup: RoadMaster Falcon 2 Tow Bar with 4-Wire Electric Cord, part # RM-520, (attached instructions link). I included FAQ articles on tow bar wiring and tow bar functions below for you to check out. For a lighting solution I would recommend you use a Roadmaster Universal...
    view full answer...
  • What Parts are Needed to Flat Tow a 2011 Honda CR-V, 2 Wheel Drive
    To flat tow a vehicle there are 5 essential components you will need: base plates, a tow bar, safety cables, wiring, and a supplemental braking system. Base plates provide a safe and secure attachment point on the vehicle for the tow bar. For you 2011 Honda CR-V, the Roadmaster Base Plates, # RM-521559-4, that you have referenced would be a good choice. These are XL style base plates so you will need a tow bar that is compatible with the XL style. The most popular tow bar for XL base plates...
    view full answer...
  • Parts Needed To Flat-Tow My 2011 Honda CR-V 4-Wheel Drive Behind My 2008 Jayco Motor Home
    To tow your 2011 Honda CR-V 4-wheel drive with your 2008 Jayco Class C 35 ft motor home, you will need base plates, a tow bar, safety cables, wiring or lighting, and a supplemental braking system. The Roadmaster EZ4 Base Plate Kit, part # RM-521559-4, is a good option for base plates for your CR-V. The EZ4 Base Plate Kit features removable drawbars so that when the vehicle is not being towed, the base plates are less visible. A tow bar that I recommend is the Roadmaster Falcon 2 Tow Bar,...
    view full answer...
  • List of Parts Needed to Flat Tow A 2010 Honda CR-V with a RoadMaster Tracker Tow Bar
    Along with the Roadmaster Tracker Tow Bar, item # RM-020, you will need a set of base plates for the 2010 Honda CR-V. The correct base plate kit for your vehicle is the Roadmaster EZ4 Base Plate Kit, item # RM-521559-4. This kit will not work on vehicles with a brushguard installed on the front. You will also need a set of Roadmaster Tow Bar Quick Disconnects, item # RM-201. These will allow you to disconnect the tow bar, cross bar from the vehicle brackets so the brackets can easily be...
    view full answer...

< Previous

Do you have a question about this Base Plate?

  • Why

    At we guarantee:
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate base plate information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Kathleen M
Video by:
Kathleen M
Employee Chris R
Video Edited:
Chris R
Employee Shelly K
Written by:
Shelly K
Employee Wilson B
Updated by:
Wilson B
Employee Mike S
Updated by:
Mike S
Employee Shane H
Test Fit:
Shane H

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.

Product Experts Available Now!
Call 1-800-940-8924