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Roadmaster

Roadmaster EZ Base Plate Kit - Removable Arms

Part Number: 521537-1

495 Reviews | 9 Questions

$575.00

Retail:$632.50

You Save: $57.50

Not Confirmed to Fit

2008 Kia Rondo

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Product Images

roadmaster tow bar base plate completely hidden ez kit - removable arms

roadmaster tow bar base plate removable draw bars ez kit - arms

roadmaster tow bar base plate removable draw bars completely hidden ez kit - arms

roadmaster tow bar base plate twist lock attachment completely hidden 521537-1

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In Use/Installed

0 tow bar base plate roadmaster completely hidden 521537-1

2002 honda civic tow bar base plate roadmaster removable draw bars on a vehicle

0 tow bar base plate roadmaster removable draw bars completely hidden ez kit - arms

0 tow bar base plate roadmaster twist lock attachment on a vehicle

0 tow bar base plate roadmaster twist lock attachment completely hidden on a vehicle

0 tow bar base plate roadmaster removable draw bars ez kit - arms

2002 honda civic tow bar base plate roadmaster twist lock attachment completely hidden 521537-1

2002 honda civic tow bar base plate roadmaster removable draw bars completely hidden 521537-1

2002 honda civic tow bar base plate roadmaster removable draw bars completely hidden ez kit - arms

0 tow bar base plate roadmaster removable draw bars on a vehicle

0 tow bar base plate roadmaster twist lock attachment 521537-1

0 tow bar base plate roadmaster twist lock attachment completely hidden 521537-1

2002 honda civic tow bar base plate roadmaster twist lock attachment 521537-1

2002 honda civic tow bar base plate roadmaster twist lock attachment completely hidden on a vehicle

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Roadmaster EZ Base Plate Kit - Removable Arms customer photo

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Videos

Installation Guide for the Roadmaster EZ Base Plate Kit on a 2002 Honda Civic

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SCHEDULE AN INSTALLATION

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 521537-1 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.

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Reviews (495)
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Roadmaster Tow Bar Base Plate - 521537-1

Highlights

Custom Fit for Your Vehicle: Mounts to existing attachment points
Ready for Flat Towing: Installs on the frame to create sturdy attachment points for a tow bar.
Blends In When Not Towing: Hidden bracket design leaves the front end looking factory clean.
Connects Fast and Secure: Twist-lock drawbars insert, lock, and remove without pins or clips.
Built to Last: Computer-cut, all-steel construction with black powder coat resists corrosion.
Simple Setup: Custom-fit design installs without welding and includes mounting hardware.

Features to know about

Made for a Clean Front End: Hidden Design with Removable Arms

This kit keeps your front end looking clean when you’re not towing. The hidden bracket design leaves nothing bulky or awkward in sight, and the drawbars come out completely. Just twist and pull to remove them—no pins or clips to mess with. Once the arms are off, the brackets stay tucked behind the grille, protected from scrapes and bumps.

Quick Hookup Every Time: EZ Twistlock Connection

Hooking up doesn’t get simpler than this. The EZ Twistlock system lets each arm slide in, twist to lock, and you’re ready to tow. When you’re done, twist them back and pull the arms free. It’s a solid setup that makes connecting or disconnecting quick work whether you’re in the driveway or at a campsite.

Built to Last: All-Steel Construction with Corrosion-Resistant Finish

This base plate is built from computer-cut, all-steel construction for exceptional strength. The black powder coat finish resists corrosion and keeps it looking sharp through years of road use. The sturdy design spreads towing forces evenly through the vehicle’s frame so you can count on it mile after mile.

Straightforward Install: Bolt-On Fit with Included Hardware

You don’t need to weld or fabricate anything to get this mounted. The kit is custom-fit for your vehicle and includes instructions and all mounting hardware. With some time and basic tools, it’s a straightforward install that feels solid once it’s bolted down.

Ready for a Full Setup: Compatible with Roadmaster Tow Bars and Quick Disconnects

Once installed, these brackets provide secure attachment points for your tow bar. They work with all Roadmaster tow bars and Quick Disconnects, so you can integrate them easily into your existing flat towing setup without extra hassle.

Specs

Construction and Design

Bracket design: Hidden bracket design provides improved aesthetics compared with standard brackets
Drawbars: Easily removable - just twist and pull
Attachment system: Twist Lock Attachment (no pins or clips required)
Construction 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
Base plates: 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
Manufacturing location: Made in the USA
Warranty: Limited Lifetime Warranty
Visibility: Completely Hidden when drawbars are removed

Note

Note: Fishwire (C58410 - sold separately) are required for complete installation.

521537-1 Road Master EZ Base Plate Kit

Installation Details 521537-1 Installation instructions

This Product Fits The Following Vehicles

2001 - 2001 Honda Civic excluding SI and SIR
2002 - 2005 Honda Civic excluding SI, SIR, and Hybrid
2003 - 2005 Honda Civic Hybrid

4.8

495 reviews

5 Stars		(424)
4 Stars		(55)
3 Stars		(8)
2 Stars		(1)
1 Star		(7)

by: William 11/18/2020

2002 Honda Civic

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.

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William One Year Later

11/19/2021

They are the boss. So we’ll made.

by: Kevin B. 12/17/2011

was straight forward. I found the video very helpful in that it showed exactly where all the fasteners are located to remove the bumper cover and splash shield.

by: Jean 05/21/2019 One Year Later

We're very pleased with the tow package and enjoy taking our dinghy wherever we go!

by: Todd 02/12/2025

Great customer service and quick delivery.

by: Aaron 02/01/2022

It doesn’t fit right

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Thomas M.

2/2/2022

I will have Customer Service reach out to you.

by: Kevin 07/17/2021

2004 Honda Civic

Kevin One Year Later

7/18/2022

It works great.

by: Louie 12/20/2017 One Year Later

Excellent. Fit my car perfectly.

by: Mike Riley 06/22/2015

This product was easy to install. It took less than 2 hours.

by: Randall 08/11/2021

2003 Honda Civic

Easy to order 4 day delivery and very easy to install.

by: Barry 07/02/2026 One Year Later

by: Arthur 06/07/2024

Built like a tank !!

by: Gabriel 03/19/2025

by: John Shefte 12/18/2024 One Year Later

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.

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Victoria H.

12/18/2024

That amazing John! Where did you go on your long adventure?

John S. One Year Later

12/21/2025

I towed my Mini Cooper on a 5000-mile trip this summer. The Base Plates worked great. I had to replace the water pump on the Cooper this required removing and reinstalling the base plates. I inspected them, and after two years and 9000 miles of towing, they are in perfect shape.

by: Thomas 07/06/2026

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

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James D.

7/8/2026

Love to hear this Thomas, glad we were able to assist. Thanks for stopping by and we appreciate you choosing etrailer! Have you flat towed the vehicle yet?

Thomas

7/10/2026

I towed it 200 miles of winding mountain roads. Worked perfectly @JamesD

by: Lisa 08/27/2026

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

by: Rob H 08/05/2025 One Year Later

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.

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by: Frank 09/01/2026

The baseplate fit perfectly and the video was very helpful

by: Bill R. 04/29/2013

2014 Jeep Grand Cherokee

I installed this base plate system on my 2014 Jeep Grand Cherokee Limited this weekend. My Jeep had tow hooks which were basically removed and replaced by the base plates in the same location. No modifications to the grill were required and the base plates are no more noticable than the tow hooks were.
Installation was straight forward. Roadmaster forwarded a PDF file of the excellent color instructions with my order confirmation. I was able to view the photographs on my ipad and zoom in where necessary to get more detail.
Overall I would rate the Roadmaster product, instructions and customer service 5 star in every way.

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John B.

9/19/2013

Did you have to do any drilling on your vehicle to mount this system?

Patrick B.

9/25/2013

Yes, there will be some drilling involved in the installation. Check the instructions link on the product page for more information about the drilling that will be required. I believe it will just be four 1/2 inch holes.

Bill R. One Year Later

5/16/2014

The Roadmaster baseplate and Falcon tow bar are working great with our 2014 Grand Cherokee and Endeavor motorhome. We are in the middle of a 1500 mile trip and have had no problems with the equipment. I have decided that I need to purchase a braking system for the Jeep. Thinking about the Invisi Brake, primarily because it is made by Roadmaster and I had a great experience with your companys customer service when the 2014 Grand Cherokee baseplate kit was being developed. Thanks for the good work.

Rachael H.

5/27/2014

Thanks for the follow up, very happy to hear that you are pleased with your Roadmaster Base plates. If you are considering the Invisibrake # RM-8700 as a braking system this is a great choice. The installation is a long and involved process and if you are looking for a more simplified installation you might like another Roadmaster product such as the Even Brake # RM-9400. This will serve the same purpose as the Invisibrake, but the portable unit will have to be removed after flat towing your Jeep where the Invisibrake is permanently installed in your tow Jeep.

by: Robert 06/27/2026

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: Larry B 06/05/2015

GMC Terrain

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

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Dave R.

3/15/2016

Larry, Im assuming that youve towed your vehicle by now. Are you still happy with your choice and did you purchase any additional components like the electrical kit, fuse switch..etc Dave R

Larry B.

3/15/2016

Have been using this tow adapter now for a while and everything works out fine, Easy to connect. I did purchase the Wiring harness from the tail lights to the front of the car instead of making it as I usually do and the connection to the RV from that connection and glad I did, the wiring harness also went easy and very fast.

by: Doug 04/07/2020 One Year Later

2014 GMC Acadia

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.

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Douglas K. One Year Later

4/8/2021

great

by: Paul D 07/14/2016 One Year Later

2010 GMC Terrain

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.

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Paul D. One Year Later

7/14/2017

I have towed my Terrain about 3500 miles with no issues. It tows and tracks extremely well. I put red paint marks on the bolts that are easily seen, so that I can see at a glance if any bolts have loosened up. I use a Roadmaster All Terrain tow hitch and SMI Duo braking system.

by: David 11/28/2017

Mazda Miata

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.

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David One Year Later

11/30/2018

We are very happy with the baseplate and Sterling tow bar we purchased!We have over 10,000 miles with no problems at all.A great product and your company was very easy to work with.Thank You!

by: Vince 08/13/2026

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

by: Rodney C. 05/17/2013

2010 Honda Fit

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.

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

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

Can 2003 Honda Civic be Flat Towed with Demco Tow Bar
Hey Barry, your Demco tow bar can attach to Roadmaster base plate kits with the adapter part # RM-032 so you'd just need the correct base plate for your 2003 Honda Civic part # 521537-1. Do you have the rest of your flat towing components?
view full answer...
Parts Needed To Flat Tow A 2004 Honda Civic Behind Motorhome
To flat tow your 2004 Honda Civic you will need vehicle specific base plates, a tow bar, safety chains, a supplemental braking system, tow wiring for your Civic, and a wiring extension. For base plates, I recommend a Roadmaster kit. If your Civic is a Hybrid or standard model use # 521537-1. If you have an SI this will not fit. I recommend the Roadmaster Sterling, # RM-576. It'll pair nicely with either base plate kit and it includes safety cables and a wiring harness. I recommend...
view full answer...
What is Needed to Flat Tow a 2004 Honda Civic EX
There are many components that are needed to safely flat tow vehicle behind your RV. You will need base plates, tow bar set-up, safety chains, a lighting solution and a supplemental braking system. Some applications also may need a high-low adapter to make sure the tow bars are level when towing. Consulting your local Honda Dealer will confirm if you are able to flat tow this model Civic. Everything that I have seen tells me that your 2004 Honda Civic can be flat towed, but the manufacturer...
view full answer...
Parts Needed to Flat Tow a 2005 Honda Civic
Since the only Blue Ox base plate kit for your 2005 Honda Civic has fixed arms you would want to go with the Roadmaster kit part # 521537-1 and then use the adapter part # BX88178 to allow your Blue Ox Avail # BX7420 to attach to it. For lighting you can use the bulb and socket kit, # RM-154, and not have to worry about cutting into the taillight assemblies. You will also want the # BX88206 to connect this lighting solution to your tow vehicle. This comes with a round 6-way connector...
view full answer...
Parts Needed to Flat Tow 2004 Honda Civic EX Manual Transmission
First thing you'll need to flat tow your 2004 Honda Civic is a base plate kit like the Road EZ Base Plate kit part # 521537-1. Since it's a manual transmission you'd have to just basically put the vehicle in neutral and you'd be set. In addition to the base plates, you will also need a compatible tow bar, safety cables, lighting, and supplemental braking to flat tow your vehicle. The most popular compatible tow bar is the Falcon All Terrain, # RM-522. This has non-binding arms which makes...
view full answer...
Inexpensive Tow Bar for a 2003 Honda Civic EX
The Curt Tow Bar with Adjustable-Width Arms part # C19745 would not mount directly to the front bumper fascia on your 2003 Honda Civic EX because it is made of plastic. In order to use this tow bar you would need to remove the front bumper fascia and attach this to the bumper support beam or the core support arms. If you do not want to remove the front bumper fascia each time then your only option would be a set of base plates and tow bar. The cost cost effective option we have for this...
view full answer...
Base Plates and Tow Bar Recommendation for 2005 Honda Civic LX
The base plates we offer for the 2005 Honda Civic are specific to the version of the car. Since you do not have a hybrid, SI or SIR model you can use Roadmaster EZ Base Plates # 521537-1 which have removable arms that will help prevent bumps to your shins. The written instructions and an installation video are linked for you. All of the base plates we offer for the various versions of the car cost pretty much the same. There is no entry-level base plate that costs substantially less than...
view full answer...
Which Vehicles will Roadmaster Base Plate Kit 521537-1 Fit
This base plate kit from Roadmaster will fit 2001-2005 Honda Civic excluding SI and SIR models. They will also fit 2003-2005 Honda Civic Hybrid. These are the only vehicles this kit will fit.
view full answer...
Availability of Base Plates for Flat Towing 2004 Honda Civic Hybrid Sedan
Roadmaster and Blue Ox both offer base plates for the 2004 Honda Civic Hybrid Sedan and these can be seen on the link provided. Both feature twist-lock removable draw bars and both will require some trimming of the bumper fascia and other components. The Roadmaster kit is part # 521537-1 and the Blue Ox kit is part # BX2236. The Roadmaster Tracker tow bar # RM-020 that you referenced is compatible with these Roadmaster base plates so I suggest these for your application. Flat towing also...
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Info for this part was:

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Updated by:

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