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  1. Tow Bar Base Plate
  2. Roadmaster
  3. Removable Draw Bars
  4. Twist Lock Attachment
  5. Completely Hidden
THIS ITEM IS NOT A FIT FOR
2014 Ram 3500
etrailer Installation
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Roadmaster

Roadmaster EZ Base Plate Kit - Removable Arms

Part Number: 521426-1
In Stock
$670.00
Retail:$742.50
You Save: $72.50
Tow Bar Base Plate
Not Confirmed to Fit

2014 Ram 3500

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In Use/Installed

etrailer Installation
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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 521426-1 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (492)
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Roadmaster Tow Bar Base Plate - 521426-1

Highlights

  • Custom Fit for Your Vehicle: Mounts to existing attachment points
  • Ready for Flat Towing: Creates secure attachment points for towing your vehicle behind your RV.
  • Blends In When Not Towing: Hidden bracket design keeps the front end nearly invisible when arms are removed.
  • Fast Hookup and Removal: Twist-lock arms install or detach with a quick twist—no pins or clips needed.
  • Built to Last: Computer-cut, all-steel construction with black powder coat stands up to corrosion.
  • Simple to Install: Mounts directly to the frame with included hardware—no welding required.
Made in USA

Features to know about

Built for Miles of Confidence: All-Steel, Computer-Cut Construction

When you’re setting up for long hauls, strength and precision matter. The Roadmaster EZ Base Plate Kit uses all-steel construction that’s computer-cut for a precise fit on your frame. It installs with included hardware and doesn’t require any welding. The black powder coat finish adds corrosion resistance so it stays solid through years of towing and road grime.

Clean Look When You’re Not Towing: Hidden Bracket Design

Nobody wants a permanent chunk of metal sticking out from the front of their ride. Once the arms are removed, this bracket setup is virtually invisible—tucked neatly within the grille area where it stays protected from scrapes and scuffs. The result is a tidy, factory-like appearance and no shin-busting hardware when you’re walking around up front.

Hook Up in Seconds: Twist-Lock Removable Arms

This EZ system lives up to its name. The removable drawbars slide into the brackets, twist to lock, and come out just as easily—no pins or clips required. That twist-and-pull action makes connecting or disconnecting simple whether you’re in your driveway or at the campsite. Quick connects mean less time messing with hardware and more time getting on the road.

Reliable Fit with Your Setup: Compatible with Roadmaster Tow Bars

Already running a Roadmaster tow bar or one with quick disconnects? This base plate kit fits right in without extra adapters. Each kit comes complete with installation hardware and instructions so everything you need to mount it is in the box. It’s a straightforward, reliable foundation for any flat-towing setup that uses Roadmaster components.

Weekend-Ready Installation: Simple Bolt-On Mounting

You don’t need specialized tools or welding gear for this job. The included instructions walk you through bolting the brackets to your vehicle’s frame for a secure, level mount. Clear steps and pre-cut steel parts make it approachable even for first-time DIYers who like doing their own setups. Once fitted, it’s ready to handle thousands of miles without fuss.

Specs

Construction and Design

  • Bracket Design: Hidden bracket design provides improved aesthetics compared with standard brackets
  • Drawbar Type: Removable drawbars - just twist and pull
  • Attachment Method: Twist Lock Attachment
  • Material: Computer-cut, all-steel construction
  • Finish: Black powder coat finish is durable and corrosion resistant
  • Mounting Location: Brackets install on vehicle’s frame to provide attachment points for tow bar
  • Visibility: Completely hidden once drawbars are removed

Compatibility

  • Tow Bar Compatibility: Compatible with Quick Disconnects and all Roadmaster tow bars
  • Vehicle Fit: Custom base plates ensure a perfect fit for your vehicle

Installation and Hardware

  • Installation Type: Simple installation - no welding required
  • Included Components: Instructions and mounting hardware included

Origin and Warranty

  • Country of Manufacture: Made in the USA
  • Warranty: Limited Lifetime Warranty

521426-1 Road Master EZ Base Plate Kit

Installation Details 521426-1 Installation instructions

This Product Fits The Following Vehicles




Ratings & Reviews

4.8

492 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:

Very good product at a great price. Instructions and video are for a 2013 terrain and things were a bit different on my 2015. When all screws and clips are removed the front piece cannot be just pulled forward. There is a rear facing clip and you have to pull to the side to remove from this piece. (pics attached)There was no PS cooler attached in front on mine. Remove washer bottle totally which consists of 2 nuts and 1 bolt otherwise you will never get back up plate for top brackets in. If you remove horns it also makes installing the top brackets much easier.



by:

Easy to install for the do it yourselfer. Good quality and fit. etrailer customer service was great too.



by:

Very well constructed. Fitting right side took some adjustment, I had to clearance the lower member hole in order to fit the bolt.
I installed the base plates myself, after the prospective mechanic claimed this was the incorrect fitment. Subsequent calls to Roadmaster produced a "No Fit" pronouncement, in spite of the lookup and even the printed instructions. Undaunted, I proceeded, and the fit was successful. YES, this DOES fit a 2007 Mini Cooper S Convertible.



by:

Installed on 2005 mini cooper convertible. Choose this base plate for our mini since it provided highest attachment height for tow bar (12 inches off ground, only requires 3 inch drop from back of RV), and attaches to mini frame more substantially that blue ox. Installation directions are nearly perfect, we had to widen holes on passenger side to line up with frame. Modification was approved by Roadmaster.



by:

The installation on this was surprisingly quick on my 2011 Fit (base/non-sport version). Everything fit well (no pun intended).

A few minor changes over the video as my car was slightly different:
- I didn't have to trim anything on the air dam -- the tubes lined up perfectly with the slots on my grill.
- There was a in the wheel on each side where the plastic bumper meets the steel body panel. I didn't realize they were there (they're hidden somewhat) so I ended up cracking the hole this screw was in, but everything came back together nice and tight anyway.



by:

It does what it's supposed to do, which actually seems to be special these days. In all seriousness we purchased this for out Liberty, which blew it's ending the first time we tried to go on a big trip. We had it taken off of that Liberty and put on another and that's what it was on for our tip from AZ to Chicago. We have connected and disconnected probably a dozen times and took the arms off to drive around Chicago. It works just like it should and it is nice to not have to worry about at least one item. Hightly recommend this system.



by:

Even I had to wait almost 2 months, I'm so grateful that I got the Roadmaster base plates and tow bar..:) It is so easy to be mounted and to operate with it... Thank you for the good product.... P.S You don't need to cut anything from the bumper plastic facial...so you can just skip that part from the instructions!



by:

The Roadmaster base Plate kit does what it was designed to do. A difficult install as the Smart ForTwo did not lend itself to an easy base plate engineering design.
Installed it myself though with help from the instructions and etrailer on line instructions. I like the finished base plate. It is barely visible protruding only slightly from the black lower radiator grill (see photo)



by:

Very happy with this product. Installation was pretty easy. I see no reason to pay someone to install this. True you have to take the bumper off and a large metal support beam but it was pretty easy. You just have to take it slow and not get frustrated. The bumper on the Honda Fit is held on with a gazillion little plastic clips and snap joints. Everything fits tight on a Honda so you have to be patient. My only complaint is they don't give you the exact torque settings. I had to consult a shop manual to get the correct torque values. They give a table at the end of the instructions that gives common torque values for various bolt sizes. I thought that was lame they could have given the correct value from the shop manual. Certainly not enough to lower my rating. This bar is awesome and when the drawbars are removed the base plate is almost completely hidden. My wife wanted nothing to show on the front of the car. She was very pleased with it.

In the picture attached the bar is almost completely hidden. All you see are two small black circles. It takes about 2 seconds to mount the drawbars, just twist and go. VERY sturdy. I tow my Honda behind the motorhome with confidence.



by:

I had my tow car blow its engine in South Dakota while on vacation. It needed to be replaced. I bought a used car and ordered a tow bracket for it and had it shipped to one of my destinations so I could install it there.
Unfortunately that car also broke down but I was able to return it. I asked to return that bracket and etrailer accepted it back.

I found a different car and ordered the bracket for it plus a wiring kit. etrailer shipped those and they were there when I got there.

They were easy to install and fit exceptionally well. After having my wife drive the new tow car for 1000 miles we were happy to get back in the motor home while we traveled.



by:

Parts came very quickly. The base plates are really well make and of heavy material. If you watch the video it is a breeze to install. Make sure you have some new clips for your bumper as the old ones will break, not all but some. I ordered clips from Amazon. I used a vibrating saw with cutting blade and it did nice job cutting plastic bumper cover.



by:

very well made and just getting pickup ready for flat towing. Fast shipping and excellent service. Highly recommend.



by:

I received the base plate for my Miata at 4:30 Monday by 7:00 it was installed and ready to go.A great product fit very nicely.Ordering and follow up went great can’t wait to try it out Just need to decide on the tow bar we will use.The Falcon or Sterling .Thank you for a great product and service.



by:

It was a very easy install and it did great. Only got to use it for 2 months though before a semi drug his trailer across the back on my toad and totaled the vehicle.



by:

Installed on 2014 GMC Acadia. Very sturdy and heavy duty base plate. I installed it myself. You will need a little automotive knowledge and more tools then the average do it yourself-er. It took about 6 hours, by myself. It looks more intimidating then it turned out to be. You can't see it when not in use which makes it nice for the wife, since it's her car.
Pictures show the tow bar adapter. Sorry, no pictures of adapter removed.



by:

Roadmaster base plate for 2010 GMC Terrain. Very detailed instructions, great videos. Product was as described, no holes to drill, just replace factory parts with Roadmaster parts. Everything went together very well. I used the instructions supplied along with the video on my laptop. Hardest part was popping the bumper shroud back on due to colder temperature. I have a fair bit of experience with rebuilding classic cars so have lots tools and reasonable mechanical ability.



by:

Purchased the towing adapter for my GMC Terrain a few week ago, received it on time & boxed not damaged. Watched the videos’ about three time on how to do it myself and started one evening and finished it the next morning about three hours with Beer Breaks, LoL. All the parts fix perfectly, had no problems with any of the parts, Product is real sturdy and if you don’t know where to look at the bumper you will not see the hide away receiver brackets. Very nice product, do it yourself and save
Up loading two photos if it will let me one is with hide away brackets installed and the other one you can see is my complete tow bar attached to the hide away brackets



by:

easy to follow instructions, took about 3 hours to install. paper template for holes in facia would be great .



by:

Seems like a very well-made sturdy product. Instructions were good however the holes did not quite lineup like they were supposed to so I had to do some mild to moderate modification. I like the way it looks without the towbar on the base plate. It’s fairly well hidden.



by:

The baseplate fit perfectly and the video was very helpful



by:

Thanks for being a great knowledgeable person about this tow set up. It fit perfect and the directions made it a no brainer



by:

Installed without a hitch! Matches up perfectly with the Roadmaster Stowmaster towbar we already had. Beautiful!



by:

Many reviews for this base plate said they could not hook up the U bolts. I had no problem using the U bolts. I did not tighten any bolts until I had them all in place. Then, I tightened all the nuts and bolts. I marked them with paint so I could see if any of them backed off. After a year, all of them are still tight. We towed our mini 4,000 miles in the first year.



by:



by:

product was delivered on time and complete and everything fit perfectly.


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

  • Parts Needed to Flat Tow 2002-2004 Jeep Liberty
    We have everything you'll need to flat tow a 2002 through 2004 Jeep Liberty. But the first thing you need to determine is if you will buy one with a brush guard or without. If there isn't a brush guard you'd want the base plate kit part # RM-521423-5 with the Roadmaster Nighthawk part # RM-676. Or if you go with a brush guard you'd want the base plate kit part # 521426-1 with the Sterling tow bar part # RM-576. To protect either tow bar when not in use the cover part # RM-055-3 is recommended...
    view full answer...
  • Is Install of Base Plate Kits for 2002 Jeep Liberty Difficult
    The Roadmaster StowMaster part # RM-501 can be used to tow your 2002 Jeep Liberty but it will require you to install a base plate kit too with the part # 521426-1 if you have a brush guard or part # RM-521423-4 if you do not have one. The install of these kits isn't exactly difficult but it can take some time so you'd just need to set aside enough time and it would be very easy overall.
    view full answer...
  • Recommended Components for Flat Towing 2002 Jeep Liberty Behind a Motor Home
    The Roadmaster EZ4 Base Plate Kit # RM-521423-4 is a good fit for your 2002 Jeep Liberty as long as your vehicle does not have a brush guard. This kit features a hidden bracket design which allows the draw bars to be easily removed via 2 pins, giving the base plates a more subtle appearance. It is also compatible with all Roadmaster tow bars. If your Jeep does have a brushguard, you can go with the Roadmaster EZ Base Plate Kit # 521426-1. Prior to flat towing your vehicle, be sure to...
    view full answer...
  • Base Plate Recommendation to Flat Tow a 2002 Jeep Liberty with a Roadmaster Tracker Tow Bar
    You will first need a base plate kit on your 2002 Jeep Liberty to be able to flat tow it with your Roadmaster Tracker Tow Bar part # RM-020. If you have a brush guard on your Liberty you would need Roadmaster Base Plate # 521426-1. I attached a couple other helpful FAQ articles on flat towing for you to check out also.
    view full answer...
  • Parts Needed to Flat Tow 2002 Jeep Liberty with Tow Ready Tow Bar
    The only way we can recommend you tow a vehicle like your 2002 Jeep Liberty with the Tow Ready Tow Bar part # 63180 is to use the adapter part # RM-025 with a Roadmaster base plate kit # 521426-1. You should keep in mind that the Tow Ready Tow Bar has a lower speed rating of 45 mph than most so you might be better off with a different tow bar like the Roadmaster Stowmaster part # RM-504 which wouldn't require the adapter either.
    view full answer...
  • Do Roadmaster Flat Towing Base Plates Come With Installation Hardware
    Yes. The Roadmaster EZ Base Plate Kit - Removable Arms # 521426-1 for a 2002 Jeep Liberty comes with all of the hardware needed for installation. These base plates are compatible with all Roadmaster tow bars and tow bars with quick disconnects. A complete flat towing setup consists of base plates and a compatible tow bar, safety cables, tow bar wiring, supplemental braking and a high/low adapter. If you're in need of any of these additional parts to flat tow your 2002 Jeep Liberty, we...
    view full answer...
  • Base Plate Kit, Tow Bar, Safety Cables, and Lighting Needed to Tow 2004 Jeep Wrangler
    In order to use a tow bar with your Jeep, you will need to add base plates, # RM-521423-4 for models without brush guard or # 521426-1 for models with brush guard. You will then need to add Roadmaster Base Plate to Tow Ready Tow Bar Adapter, # RM-025, to be able to use the Tow Ready Tow Bar, # 63180. Keep in mind that this tow bar is rated for towing speeds of 45 miles per hour or less. The RoadMaster Tracker Tow Bar, # RM-020, may be a much better choice if you will be towing often or...
    view full answer...
  • Base Plate for 2004 Jeep Liberty Thats Compatible with Reese Tow Bar
    As long as your Liberty doesn't have a brush guard on it, the Roadmaster # RM-521423-5 base plate kit would be a good choice. If you DO have a brush guard, use # 521426-1. In order to be compatible with your Reese tow bar, you'd also need an adapter like part # RM-025. I'm not sure which Reese tow bar you have, but keep in mind that some of the Reese towbars have a limited speed rating of 45 mph. The # 40602 bracket you referenced is more suited to something that would have a completely...
    view full answer...
  • Roadmaster Stowmaster Tow Bar-Compatible Base Plates for 2002 Jeep Liberty
    To use your Roadmaster # RM-501 Stowmaster with your 2002 Jeep Liberty, you'll need to use a crossbar-compatible base plate kit. If your Liberty has a brush guard, you'd use # 521426-1, or # RM-521423-4 for Liberty models without a brush guard. You'll also need safety cables like # RM-643, a wiring solution like # RM-15267, and a supplemental braking system like # SM99251 if the motorhome has hydraulic brakes or # SM99243 for motorhomes with air brakes. You'll also need the # RM-88400...
    view full answer...

Do you have a question about this Tow Bar Base Plate?


Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Lindsey S
Written by:
Lindsey S
Employee Adele M
Updated by:
Adele M
Employee Wilson B
Updated by:
Wilson B
Employee Isabelle B
Updated by:
Isabelle B

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