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  1. Tow Bar Base Plate
  2. Roadmaster
  3. Removable Draw Bars
  4. Twist Lock Attachment
  5. Completely Hidden
Roadmaster EZ Base Plate Kit - Removable Arms
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Roadmaster

Roadmaster EZ Base Plate Kit - Removable Arms

Part Number: 521433-1
In Stock
$575.00
Retail:$632.50
You Save: $57.50
Tow Bar Base Plate

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etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
Roadmaster's EZ Twistlock series 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. Great Prices for the best tow bar base plate from Roadmaster. Roadmaster EZ Base Plate Kit - Removable Arms part number 521433-1 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (491)
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Roadmaster Tow Bar Base Plate - 521433-1

Highlights

  • Custom Fit for Your Vehicle: Mounts to existing attachment points
  • Ready for Flat Towing: Installs on the frame to create solid attachment points for your tow bar.
  • Blends In When Not Towing: Hidden bracket design stays virtually invisible once drawbars are removed.
  • Quick Hookup and Release: Twist-lock arms insert and remove easily with no pins or clips needed.
  • Built to Last: Computer-cut, all-steel construction with black powder coat resists corrosion and wear.
  • Simple Setup: Custom base plates fit your vehicle and include instructions and mounting hardware.
Made in USA

Features to know about

Made for a Clean Front End: Hidden Bracket Design with Removable Drawbars

When you’re not towing, there’s no need to look at bulky hardware up front. The Roadmaster EZ Base Plate Kit uses a hidden bracket design that keeps the front end clean and nearly invisible once the drawbars are removed. The brackets mount within the grille area for a tucked-away finish that stays protected from scrapes and scuffs. You get the factory look back when you’re done towing without any hassle.

Quick Connect Setup: Twist-Lock Arms, No Pins or Clips Required

Hooking up takes just a couple of twists. The removable arms slide into the bracket sockets and lock into place with a simple turn—no pins, clips, or extra tools needed. When it’s time to disconnect, twist them back and pull them out. It’s a fast, positive connection that makes solo hookups easier and keeps the process clean and straightforward every time you tow.

Built to Handle Long Miles: Computer-Cut, All-Steel Construction

This kit is built from computer-cut, all-steel components for strength and consistency. The solid design distributes towing force evenly across the frame mounts for dependable performance over thousands of miles. A black powder coat finish adds corrosion resistance, so it holds up through weather, road grime, and long-term use without wearing down.

Straightforward Bolt-On Install: Perfect Fit with Included Hardware

You don’t have to weld anything to get this base plate installed. It bolts directly to the vehicle frame using the provided mounting hardware for a secure fit. The custom-cut plates ensure alignment is right on target from the start, making setup smoother whether you’re doing it yourself or in a shop environment.

Works with What You Already Have: Compatible with All Roadmaster Tow Bars

No need to buy a new tow bar—the EZ Base Plate Kit connects seamlessly with all Roadmaster tow bars and supports Quick Disconnects for easy transitions between setups. If your towing system already uses Roadmaster gear, everything lines up without additional components or complicated adapters. It’s plug-and-tow simplicity built into a durable, hidden mount design.

Specs

Construction and Design

  • Bracket design: Hidden bracket design provides improved aesthetics compared with standard brackets
  • Drawbars: Easily removable - just twist and pull
  • Attachment mechanism: No pins or clips required
  • Material: Computer-cut, all-steel construction provides exceptional strength
  • Finish: Black powder coat finish is durable and corrosion resistant
  • Installation: Simple installation - no welding required
  • Fitment: Custom base plates ensure a perfect fit for your vehicle
  • Compatibility: Compatible with Quick Disconnects and all Roadmaster tow bars
  • Included components: Instructions and mounting hardware included
  • Country of origin: Made in the USA
  • Warranty: Limited Lifetime Warranty

Features

  • Removable Draw Bars: Yes
  • Twist Lock Attachment: Yes
  • Completely Hidden: Yes

521433-1 Road Master EZ Base Plate Kit

Installation Details 521433-1 Installation instructions

This Product Fits The Following Vehicles

  • 2010 - 2011 Jeep Liberty excluding Renegade - without rockguard or skid plate
  • 2008 - 2012 Jeep Liberty without rockguard or skid plate



Customer Satisfaction Score:

Ratings & Reviews

4.8

491 reviews
Review sort icon
Roadmaster's EZ Twistlock series 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.

by:

Great Product! Came as expected.



by:

It was a little harder than I expected but got it done.



by:

Easy install. Have had no issues since I installed a year ago.



by:

Not an easy task of course. I've done a 2006 Liberty once before, so I was somewhat familiar with the installation. The directions were great and installation went well. Only the finder flare rivets were a problem because I did not have a plastic rivet tool and there were none available near here. I had to use vise grips, a pair of pliers with a small grip hole at the end and a foot. Gotter done, Thanks for the prompt delivery.

Dan



by:

Went in as per the instructions. Can't even see them on the Jeep.



by:

Great product lots of install videos



by:

Great service. The kit fit and instructions were good. Thanks!



by:

Customer service is very helpful and patient as they walked through everything I needed to set up a car to be towed behind my motorhome.



by:

Wow extremely fast delivery. You can't find lower prices anywhere on the Internet do save time and order from trailer



by:

Your company is great. Shipping thru ups no so. There allways late.



by:

Easy to order. Detailed installation instructions. Outstanding product.



by:

Haven't the opportunity to install yet. Instructions seem a little vague and kind of small in script. Good thing that you offer a video for the install process.



by:

Excellent product for the price. Installation was straight forward with no issues. Very satisfied!



by:

Great site to find products and determine fit to vehicle. Delivery was just as promised. Free shipping is a real great feature.



by:

PERFECT for my Jeep Liberty. Best price around, easy to follow instructions, good quality part.

Terry B. profile picture

Terry B.

3/16/2018

Product works, easy to use now that its installed on the vehicle.



by:

Product and instruction as well as the installation video for my 2012 Jeep Liberty were great. Installation was smooth and Katie in Customer Service was absolutely wonderful (since the order was delayed by UPS) and she was wonderful in resolving the shipping issues and keeping me informed. Kudos!!



by:

Product and instruction as well as the installation video for my 2012 Jeep Liberty were great. Installation was smooth and Katie in Customer Service was absolutely wonderful (since the order was delayed by UPS) and she was wonderful in resolving the shipping issues and keeping me informed. Kudos!!



by:

I finaly got around to mounting the EZ tow mount on my 2009 Jeep Liberty after receiving it over a month ago. The written instructions were very detailed and I also watched a U-tube video showing the installation on a 2012 Liberty. All the parts were there and every thing "bolted up" as advertised. The only issue I had was a weld on the inside of the square tube for one of the long bolts kept me from getting a socket on that bolt. A littel work with a file and that was taken care of. I have yet to tow the vehicle behind my MH yet but I don't think there will be any problems.



by:

Install them on a 2006 Jeep Liberty , Installation was as explained in directions and not very difficult. However I was both a master auto body mechanic and and above average auto mechanic with 40 years in the trade. I do believe that the average person can handle this by flowing the instructions and using common senses.



by:

I put these base plates on a 2012 Jeep Liberty Sport, works great, instructions were good, model pacific.

John profile picture

John

10/31/2019

Still working fine hadnt fell off yet



by:

Base plate was delivered on time and in good condition. Directions were very clear and fairly easy to install. My son helped me.Its easier with 2people. The light kit was also easy. We ran the 4 flat wire through the firewall driver side .We found a rubber gromet near the top and popped out. We ran the wire under the plastic trimon bottom of door all the way to compartment for jack to tailight assembly. We drilled hole in bottom circle of light to accept light and then under rear bumper and up other side to right assembly.Wired according to instructions. They work great. I like the ease of taking the hitch off when not in use. Thank you for everything.



by:

All though I have not had time to install these base plates and wiring, the service from Etrailer so far has been excellent. Parts ordered came very quickly and the order was complete.

William T. profile picture

William T.

12/11/2020

Great. The tow bar base plates worked perfectly. Installation was a breeze.



by:

The entire system from the frame mounts on our jeep to the wiring and the tow bar assembly was as stated correctly for our fit needs and fit excellent. etrailer was great to work with and always there when called for help. I will strongly recommend them to anyone needing towing set-ups or parts. Thanks Meghan M. for you help from start to finish. Job well done.

Cal E. profile picture

Cal E.

10/23/2020

After installing and using for over a year everything is great. Have hooked up and run probably 12 or more times all is like new yet. great job etrailer.



by:

Worked perfectly for our car easy install watched the video. Thanks



by:

Fit like it should paper instructions were little vauge. Video on line helps a lot.


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See what our Experts say about this Roadmaster Tow Bar Base Plate

  • How to Flat Tow a Second Generation Jeep Liberty 2008-2011
    In order to flat-tow a second generation (2008-2011) Jeep Liberty with all four wheels on the ground you will need a base plate kit, tow bar, flat-tow wiring harness, safety cables, supplemental braking system, and possibly a high-low adapter. I have attached my recommendations for each of these parts below. For a base plate kit I recommend the Roadmaster Base Plate Kit part # 521434-1 if you have a have rock guard or skid plate excluding Renegade, part # 521433-1 if you do NOT have a...
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  • Roadmaster Base Plates for a Sterling Tow Bar and a 2011 Jeep Liberty
    The first thing you are going to want to do is consult the owners manual of your 2011 Jeep Liberty to determine if it can be flat towed or if anything additional is needed to tow the vehicle. From the research I did, all wheel drive models with automatic transmissions and models with 2 wheel drive and a 6 or 5 speed can only be towed on a trailer. Two wheel drive models with automatic transmission will require a transmission lube pump. And 4 wheel drive models with automatic transmission...
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  • Recommended Flat Towing System For 2012 Jeep Liberty Sport 4WD Behiind 2005 Holiday Rambler 30PPD
    For your 2012 Jeep Liberty Sport 4WD, I recommend the Roadmaster EZ Base Plate Kit - Removable Arms # 521433-1 to start your flat tow set-up. I've attached a video of this installation to help. For a tow bar, I recommend the Roadmaster Falcon 2 Tow Bar - Motorhome Mount - 2" Hitch - 6,000 lbs # RM-520 along with safety cables # RM-643. Then for your tow vehicle wiring, I recommend the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267. This will give you a 7-way to 6-way...
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  • Can 2012 Jeep Liberty 4x4 be Towed with Tow Dolly
    I did some checking and the 2012 Jeep Liberty 4WD is towable on a tow dolly like the # RM-2050-1 as-is as long as you follow the outlined procedures in the owners manual. Drive shaft does not need to be disconnected.
    view full answer...
  • Will the Roadmaster EZ Base Plate Kit Work W/ the Roadmaster Explorer Tow Bar
    Tim, it looks like the Roadmaster EZ Base Plate Kit # 521433-1 is a direct connect style base plate and the Roadmaster Explorer is a crossbar style base plate, so the two unfortunately won't work with each other. I'd recommend using something different that works with direct connect base plates like the Roadmaster Falcon All-Terrain Tow Bar # RM-522
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  • Flat Tow Parts for 2010 Jeep Liberty
    The Crossbars you identify appear to be Roadmaster Crossbar-Style Base Plate Kit, # 3136-1. This fits a Saturn Ion. For your 2010 Jeep Liberty, yes you are correct that you need the Roadmaster EZ Base Plate Kit with Removable Arms, # 521433-1 and this will match to your Roadmaster Falcon 2 Tow Bar, # RM-520. For wiring I suggest the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit, # RM-15267. If you need supplemental braking, I suggest the Stay-IN-Play DUO Supplemental Braking...
    view full answer...
    Image 1 for
  • Recommended Flat Towing Parts for a 2012 Jeep Liberty
    You will need to purchase the parts separately there isn't one giant flat towing kit that can be purchased. There are just way too many options and combinations. We all tend to recommend different products so my choice in parts will be different but not necessarily better. The question you looked at is a few years old but they stopped making new parts for 2012 Liberty's awhile ago. To flat tow your 2012 Jeep Liberty you will need the following parts: Tow Bar and Safety Chains - etrailer...
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  • Replacement Hardware Kit and Arms for Roadmaster Base Plate Kit
    For the part number 35043100 it appears you are looking for the Replacement Hardware Kit for Roadmaster Base Plate Kit, # RM-521433-1HK. Part numbers C001588 and C001589 are the removeable arms on the Roadmaster EZ Base Plate Kit, # 521433-1. To replace those arms you will need the Roadmaster Replacement Arms for Base Plate Kits # RM-ARMS. Follow the link and fill out the order form found on the product page by clicking the instruction link tab.
    view full answer...
    Image 1 for
  • Parts Needed to Flat Tow a 2007 Jeep Liberty Behind an RV
    There are several differences between the EZ5 base plates # RM-521423-5 and the regular EZ base plates # 521433-1. The biggest difference is what each of them fits. EZ5 base plates # RM-521423-5 fit the 2002 to 2007 Jeep Liberty. EZ base plates # 521433-1 fit the 2008 to 2012 Jeep Liberty. Since you have a 2007 Liberty you would need to use either the EZ5 base plates # RM-521423-5 or the EZ4 base plates # RM-521423-4. The difference between these is the design of the removable arms. There...
    view full answer...
  • Recommended Flat Towing Equipment For A 2008 Jeep Liberty
    To flat tow your 2008 Jeep Liberty you'll need a tow bar, base plate, tow bar wiring harness, braking system, and safety cables. For an economical setup I have the following recommendations: Tow Bar: Roadmaster StowMaster Tow Bar - Car Mount - 2" Ball - 6,000lbs # RM-501. This tow bar with 2" ball coupler has stainless steel, telescoping arms that automatically lock into place. Large hookup radius allows you to connect without perfectly lining up your vehicle. Quick-disconnects make it...
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  • How Do Arms for Roadmaster EZ Plate Base Plate Kit Secure for 2012 Jeep Liberty
    The end of the shank for the arms of the Roadmaster EZ Base Plate Kit # 521433-1 have a collar (for lack of a better word) and then a longer flat piece that locks it into place once the arms are placed into the base plates and turned. You can see this demonstrated in the attached review video. Please note that a complete flat towing setup you will need a base plate kit, tow bar, safety cables, vehicle tow bar wiring, a supplemental braking system, and possibly a high-low adapter. If you...
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  • Parts Needed to Flat Tow a 2012 Jeep Liberty Sport Latitude with Falcon 5250 Tow Bar
    The Roadmaster Falcon 5250 is compatible with the quick disconnects and all Roadmaster base plate kits. There are a few options for your 2012 Jeep Liberty depending on how it is equipped. If it does not have a rockguard or skid plate then use # 521433-1. If it does have a rockguard or skid plate use # 521434-1. I have included links to the instructions for the first set and a video install of the second set. In addition to the base plates and tow bar you will also need safety chains like...
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  • Recommended Base Plates for 2012 Jeep Liberty to Use with Roadmaster Sterling Tow Bar
    If your 2012 Jeep Liberty doesn't have a rockguard or skid plate then I recommend the Roadmaster EZ Base Plate Kit # 521433-1. If you do have a rockguard or skid plate then you will want the Roadmaster EZ Base Plate Kit # 521434-1, which will actually replace the rockguard/skid plate. Both of these options are directly compatible with your existing Sterling Tow Bar. Your current Roadmaster InvisiBrake # RM-8700 will also work great with your Jeep Liberty. If you are using a lighting solution...
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  • Flat Towing Base Plate Installation for 2011 Jeep Liberty
    At present, we don't have an install video for the Demco # DM9519222 base plate kit. I've linked the installation instructions for you. Have you considered Roadmaster base plates, like # 521433-1? This is a less expensive option that we do have an installation video for that's linked below. If you were interested in the Demco base plates because you have a Demco tow bar, we offer an adapter, part # RM-032 that allows a Roadmaster base plate and a Demco tow bar to work together perfectly. To...
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  • What Tow Bar is Compatible with Roadmaster EZ Base Plate Kit 521433-1
    The Roadmaster EZ base plate kits like the part # 521433-1 are basically compatible with all of the Roadmaster tow bars available. The most popular option though is the Roadmaster Falcon part # RM-520. This has telescoping arms that allow the tension in them to be released so that connecting and disconnecting is easier.
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  • Base Plates, Safety Cables, and Lighting Recommendations to Flat Tow a 2010 Jeep Liberty
    There are two sets of base plates that will fit a 2010 Jeep Liberty. If the Liberty has a rockguard or skidplate but no brushguard, you will need # 521434-1. If the Liberty has no brushguard, rockguard, or skidplate, use # 521433-1. Both of these base plates are EZ models and are compatible with a Sterling tow bar. You might also be interested in adding some safety cables or chains and a lighting kit as required by law. For safety cables, I recommend the RoadMaster 68 inch Single Hook,...
    view full answer...
  • Recommended Tow Bar for a 2012 Jeep Liberty w/ a Roadmaster EZ Base Plate
    The best non binding tow bar for the Roadmaster EZ Base Plate Kit item # 521433-1 is going to be the etrailer SD Non-Binding Tow Bar item # e44ZR. This tow bar is compatible with Roadmaster Crossbar-Style Base Plates like the one on your 2012 Jeep Liberty. The latches on this tow bar let you easily release your Jeep, even at a hard angle or on unlevel ground. It has a stainless steel construction with telescoping arms and a large hookup radius that makes hooking up easy. I have linked...
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  • Base Plates for 2005 Honda Element for use With Roadmaster Falcon Tow Bar
    There are base plates for your 2005 Honda Element which are compatible with your Roadmaster Falcon Tow Bar # RM-522, but the # 521433-1 you mentioned won't fit, as those are for certain model years of the Jeep Liberty. So what you will need for your '05 Element are the exact base plates you mentioned, the Roadmaster Direct-Connect Base Plate Kit # 1541-5. Along with the base plates and tow bar, the other parts you will need to tow your '05 Element are as follows (if you do not have them): -...
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  • Base Plates For 2011 Jeep Liberty Sport Without Rock Guard For Roadmaster Tow Bar
    I verified with Roadmaster with the correct base plate fit for your 2011 Jeep Liberty Sport without a rock guard, and it is different than the part you mentioned. The correct is the following: - Roadmaster EZ Base Plate Kit # 521433-1 According to Roadmaster, the # 521433-1 is compatible with all Roadmaster tow bars, including your Blackhawk All-Terrain. Insofar as revisions to the base plate number you asked about, that is not something that should be done as it will compromise the...
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  • How To Use Roadmaster Falcon Tow Bar On 2011 Jeep Liberty
    In order to use a Roadmaster Falcon Tow Bar on a 2011 Jeep Liberty (Without Rockguard or Skid Plate) you'll have to go with the Roadmaster EZ Base Plate Kit part # 521433-1 which requires the Quick Disconnect Crossbar Assembly part # 910021-00 if you don't already have it as that's the only option. In regards to a flat-tow wiring harness, it's hard to make a case against the Hopkins Custom Tail Light Wiring Kit part # HM56204 since it's both plug-in-play and cost effective. It also comes...
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  • How Level Should a Tow Bar be to Flat Tow a 2008 Jeep Liberty
    When flat towing a vehicle behind a motorhome you want the tow bar to bewithin 3 inches of perfectly level. We call this the "safe zone" for flat towing. I've linked a help article for you. In order to help you get your setup level you may need a high-low adapter. I've also linked our selection of adapters for you to look at so you can choose the correct rise or drop you need to safely tow your 2008 Jeep Liberty. Another thing to check before attempting to tow the Jeep is the owner's...
    view full answer...
  • Parts Needed to Flat Tow 2011 Jeep Liberty with Nighthawk Tow Bar
    For your 2011 Jeep Liberty there are only base plate kits from Roadmaster that require the use of a crossbar like the EZ Kit part # 521433-1 which you have currently. Some vehicles with heavier duty frames allow the use of the direct connect style base plates but this isn't available for every vehicle. Since the Roadmaster Nighthawk part # RM-676 does not come with the crossbar you need you'll need the crossbar kit part # 910021-00 as well.
    view full answer...
  • Roadmaster Base Plates for a 2012 Jeep Liberty and BlackHawk Tow Bar
    Yes, you can use either # 521433-1 (if the Liberty does not have a rockguard or skid plate) or # 521434-1 (if it does have a rockguard or skidplate). Either set is compatible with your BlackHawk tow bar. You will also need safety cables like # RM-643. Next you will need a lighting solution. I recommend the plug and play Hopkins harness # HM56204 for the easiest installation. You will also need a supplemental braking system on the Jeep as required by law in most states. The easiest to...
    view full answer...
  • Roadmaster Tow Bar Base Plate Kits for 2010 Jeep Liberty
    For the 2010 Jeep Liberty, we offer two different Roadmaster Base Plate Kits. Part # 521433-1 will fit Limited or Sport Models not equipped with rock guards, skid plates, or brush guards. Part # 521434-1 fits Limited or Sport Models with rock guards or skid plates, but not brush guards. Neither would be compatible with Renegade models. Both Base Plate Kits are Roadmaster EZ Plate Kits, which feature removable draw bars which make the base plates pretty much invisible once the draw bars...
    view full answer...


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Info for this part was:

Employee Lindsey S
Written by:
Lindsey S
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Joshua S
Video Edited:
Joshua S
Employee Nicholas E
Test Fit:
Nicholas E
Employee David F
Test Fit:
David F
Employee Adele M
Updated by:
Adele M
Employee Wilson B
Updated by:
Wilson B
Employee Isabelle B
Updated by:
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Employee Dustin K
Video by:
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Employee Cole B
Installed by:
Cole B

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