bing tracking image
  1. Tow Bar Base Plate
  2. Roadmaster
  3. Removable Draw Bars
  4. Twist Lock Attachment
  5. Partially Hidden
THIS ITEM IS NOT A FIT FOR
2000 Chrysler 300
etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
Roadmaster

Roadmaster Direct-Connect Base Plate Kit - Removable Arms

Part Number: RM-521882-5
In Stock
$575.00
Retail:$871.99
You Save: $296.99
Tow Bar Base Plate
Not Confirmed to Fit

2000 Chrysler 300

Will this fit?

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

zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.
By submitting this form, you understand and agree to our Terms of Sale, Website Terms of Use and Privacy Policy.

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

etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
Roadmaster's direct-connect 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 Direct-Connect Base Plate Kit - Removable Arms part number RM-521882-5 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (3690)
  • Q & A (0)
  • Photos

Roadmaster Tow Bar Base Plate - RM-521882-5

Highlights

  • Custom Fit for Your Vehicle: Mounts to existing attachment points
  • Ready for Flat Towing: Creates solid attachment points so you can safely tow your vehicle behind your RV.
  • Blends In When Not Towing: Hidden bracket design keeps the front end clean and nearly invisible after arms are removed.
  • Quick Hookup and Release: Twist-lock removable drawbars click into place and detach in seconds for easy setup.
  • Built to Last: Computer-cut, all-steel construction with black powder coat resists corrosion and road wear.
  • Simple Install: Bolts directly to the vehicle frame—no welding required—and includes mounting hardware and instructions.
Made in USA

Features to know about

Built for a Clean Front End: Hidden Bracket Design with Removable Arms

If you care about keeping your front end looking clean when you’re not towing, this setup makes that easy. The direct-connect brackets sit far back on the frame for a supremely clean look, and the removable drawbars twist out in seconds when you’re done. Once the arms are off, the remaining brackets are virtually invisible, tucked inside the grille where they’re out of sight and protected from scrapes or scuffs.

Quick Hookups Anywhere: Twist-Lock Arms That Click Securely in Place

Getting ready to tow doesn’t have to be a hassle. Each arm slides into the bracket, clicks to lock, and stays firmly secured while traveling. When you’re done, built-in pull rings let you unlock and twist them free just as easily. The simple twist-lock attachment makes it quick to connect or disconnect whether you’re on level pavement or uneven ground.

Solid and Reliable: All-Steel Construction with Black Powder Coat

You want hardware that holds up through long miles of towing, and this kit is built for it. Every bracket is computer-cut from all-steel material for exceptional strength and fitted with precise welds that line up with factory mount points. The black powder coat finish resists corrosion and road wear, so it keeps looking sharp and performing strong over time.

Straightforward Bolt-On Install: No Welding Required

This base plate kit bolts directly to the vehicle’s frame using included mounting hardware—no welding needed. It comes ready with detailed instructions so you can handle the install with basic tools. Once mounted, you get a custom fit that lines up perfectly with your tow bar for a dependable connection every trip.

Compatible with Roadmaster Tow Bars

The direct-connect design works specifically with Roadmaster tow bars that slide into a trailer hitch such as the Nighthawk, Sterling, Blackhawk, Blackhawk 2, Falcon, or Falcon 2. It’s not made for tow bars that require a hitch ball, so your setup stays solid and consistent across your towing system.

Specs

Features

  • Hidden bracket design: Provides improved aesthetics compared with standard brackets
  • Direct-connect 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
  • Compatibility: Compatible with Quick Disconnects and all Roadmaster tow bars
  • Included: Instructions and mounting hardware included
  • Manufacturing origin: Made in the USA
  • Warranty: Limited Lifetime Warranty

Note

Note: Roadmaster direct-connect base plates will only work with Roadmaster tow bars that slide into a trailer hitch, such as the Nighthawk, Sterling, Blackhawk, Blackhawk 2, Falcon, or Falcon 2. These base plates will not work with tow bars that require a hitch ball.

521882-5 Road Master EZ-5 Base Plate Kit

Installation Details RM-521882-5 Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:

Ratings & Reviews

4.8

3690 reviews
5 Stars
(3214)
4 Stars
(316)
3 Stars
(67)
2 Stars
(30)
1 Star
(63)
Review Sort Icon
by:
2015 Mini Cooper
I recieved my baseplate and towbar installed it my self on a 2015 mini cooper .With the step by step instructions the install was a perfect fit with only having to trim to rubber air shields. Thank you Adam at etrailor for all your support.
by:
Easy installation. The instructions and video they provided where very helpful. Customer service was VERY good and seemed genuinely concerned that I got what I wanted and needed. I would buy from them again.
by:
I’ve installed 3 tow brackets, & this one was by far easiest yet! Very impressed!
by:
Easy mounting on a 2016 mini JCW. Just a little grill cutting. Used it for a year, works great.
by:
After about a year and over 5000 miles of towing it works like a champ. Highly recommend.
by:
2015 Mini Cooper
Excellent service! Knowledgeable sales staff; Delivery as promised; pleasant to work with
by:
by:
by:
by:
by:
2026 ford Ranger
Had these installed at Lester’s Automotive in Boerne,Texas…First class service all the way. Paul and his crew worked through lunch for over 4 hours to install these on our 2026 Ford Ranger. Also ran the wire and hooked up my auxiliary tow lights. The price for this was very reasonable and would highly recommend them for all r.v. needs even if not real close to the Boerne area. R.V park within reasonable distance if needed.
by:
2014 Chevrolet Silverado 1500
Etrailer comes through again! This was a great savings as a used kit, but it was even better than the description online. I have installed (4) baseplates on and etrailer.com has given me great videos to watch and good instructions to follow. Couldn't be more pleased with the quality, service and delivery times.
Gwendolyn Y. profile picture
Etrailer Expert

Gwendolyn Y.

2/12/2025

Install looks great, Jeff! Do you have any plans of where you are going to go this season yet?

Jeff profile picture

Jeff

2/12/2026

I’ve pulled the Chevy behind our motor home several times over a the last year. It has worked excellent. And when not in tow the tubing is barely noticeable.

by:
2019 Ford Transit T250
This Road Master Direct connect base plate works perfectly for a 2020 ford transit cargo 250! Awesome service from etrailer as usual! The finished product can barely be seen through the front fascia!
by:
Easy to install needed to replace some fasteners as they broke removing front grill was able to get them from Amazon cheap
Gwendolyn Y. profile picture
Etrailer Expert

Gwendolyn Y.

2/26/2026

Looks great, Mark! Where are you off to next?

by:
Awesome instructions! Install was fairly easy. Product is very high quality and solid construction. Thank you E Trailer!
Heather A. profile picture
Etrailer Expert

Heather A.

4/10/2026

Wow great job Crystal! It looks great! Also, I couldn’t help but notice “Ski Express” on the car, that’s pretty cool. What kind of work do you do?

Crystal R. profile picture

Crystal R.

4/10/2026

@HeatherA I’m a pilot car driver. We escort oversized loads across the country. Thanks to E Trailer I was able to add a High pole to my car expanding my business and bringing in more revenue already. Thanks!
by:
2015 Jeep Wrangler
It mounted up just as the instructions said it would. From previous research I was not surprised when some of the mounting did not align perfectly. Had to use a dremel tool to make it work. The product looks very sturdy from its design. I’m happy with it and look forward to RV traveling.
by:
Pathetic and just talking to Noah he states he will get to my issue later when he has time!! My car is on jacks all torn apart and I think Roadmaster gas misled advertising. This 523228-5 baseplate is NOT MADE FOR 2026 CHEVY TRAX!!!
Mike L. profile picture
Etrailer Expert

Mike L.

9/23/2026

Which trim is your 2026 Chevy Trax? Per Roadmaster, the # RM25EQ (523228-5) fits all trims of the 2026 Trax except the ACTIV trim....

Larry profile picture

Larry

9/23/2026

The 523228-5 DOES NOT FIT MY 2026 CHEVY TRAX LT! Look at the side braces in your video of a Demco base plate install (upside down "U"). That is what is needed for my install. In Roadmasters install instructions, page 7, items #2, #3 have no frame in that area to bolt to & #5 has only one ho l e on bact end and putting a bolt in that hole leaves 3/4" short of main base plate. I sent pics to verify this to Noah on 9/22 @ 11:46AM. I know, unless you tried this install personally you are going by Roadmaster's word. BE CAREFUL IN SUGGESTING THIS FIT UNTIL YOU VERIFY. I just do not want someone else to have this experience. Thoughts ?
by:
Chevrolet TrailBlazer
This works perfect with my Roadmaster tow bar. It was a little difficult to install since I had to remove the front end of the Trailblazer, but with the good directions that came with it and some you tube videos made the installation easier.
David profile picture

David

8/2/2026

It’s been a great year. No problems with the base plate. Works great with my tow bar. Towed my trailblazer from Texas to North Dakota and back, and several short trips.

Jerred H. profile picture
Etrailer Expert

Jerred H.

8/2/2026

@David That is great to hear David! Thanks for coming back and sharing that feedback. I appreciate you taking the time.
by:
2017 f150
Customer service was very helpful. Easy to install. No bumper or grill cutting however, you do loose your front hooks. Nice low profile.
by:
2013 jeep Wrangler
I bought and installed this tow plate one year ago on my 2013 Jeep Wrangler. I bought this particular plate due to the jeep having a Barricade off-road bumper. This plate attaches a bit lower than other plates and prevented having to modify the bumper. Installation was easy involving only hand tools. The plate comes with all needed bolts and attachments. I have towed this Jeep several thousand miles behind my RV with absolutely no issues. As an aside, I use a Roadmaster Night Hawk tow bar which is also an excellent product. Both are expensive, but I believe cheaping-out on safety is no a good idea. I highly recommend this product.
Gary S. profile picture

Gary S.

6/19/2026

No issues at all. This is a solid piece of equipment.

Heather A. profile picture
Etrailer Expert

Heather A.

6/19/2026

@GaryS Thank you for letting us know! What is your favorite adventure so far?
by:
I just followed your video of the installation and it was on point !
by:
I have lots of issues with this tow bar. Initial installation was difficult due to a tight fit. Had to have my mechanic cut holes in frame to get bolts attached. After a few times of use the bolts failed causing the bar to fall fwd that then damaged my hitch arms. To fix I drilled new hole through bar and frame securing it with a #8 bolt. To reinforce it I used turnbuckles attached to my bumper. last tow finally went well.
by:
It’s a super strong and wonderfully engineered addition to my new Maverick pickup.. Couldn’t be happier with it!!!!! Well done!!!!
by:
The product is great - I gave 4 vs 5 stars only because I had to drill the rear holes out as they did not align with the holes in my frame and I had to drill out the hole in the bracket to align with my frame extension hole, again bracket did not align with the existing hole. However, in general it appears to be a solid mount.
by:
Great Base plate, had to modify the non-oem bumper a little to get the clearance needed to get mounting holes lined up. Once that was done, everything went pretty quickly finished and tested. Towed 600 miles and worked flawlessly. Much better than using the bumper tow points, as they were elevated causing a very bouncy towed on bridge aprons. Bumper tow points also let the towed have minor side to side movement, this does not, so a lot better towing experience.
25
3690
true
Show More Reviews

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

  • Parts Needed to Flat Tow 2020 Mini Cooper and Carry Two E-Bikes
    To pick out parts to flat tow your Mini Cooper I would need to know what year vehicle you have. Do your bikes weigh 110 lb total or is that what they weigh total?
    view full answer...
  • Recommended Flat Towing Setup for a 2016 Mini Cooper S
    Hey Darragh, congrats on your potential new car! To flat tow a 2016 Mini Cooper S you will need the following parts: Tow Bar and Safety Chains - etrailer SD Non-Binding Tow Bar for Roadmaster Direct-Connect Base Plates item # e74ZR Base Plate Kit - Roadmaster Direct-Connect Base Plate Kit - Removable Arms item # RM-521882-5 Wiring Harness - Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit item # RM-15267 Supplemental Braking System - Curt RVi Series Shadow 2 Flat Tow Brake System...
    view full answer...
  • Will The Roadmaster Direct-Connect Base Plate Kit RM-521882-5 Fit A 2016 JCW Mini?
    Hi Jay! Roadmaster officially lists the Direct-Connect Base Plate Kit # RM-521882-5 kit as fitting 2014–2019 Mini Cooper S (with or without the S turbo), but they do not officially list it for the JCW model. This is due to the JCW models having different front fascias (bumpers), more aggressive lower valances, and a slightly different crash structure compared to the Cooper S. This is predominantly why Roadmaster doesn't officially list it for JCW trims. At least from what I could find. You...
    view full answer...
  • Parts Needed For Flat Towing A 2014 Mini Cooper
    I can definitely help set you up with everything you will need. Before we get too deep into things, we recommend thoroughly reading your owners manual and confirming towability with the manufacturer before flat towing a Mini Cooper. That said, generally manual transmission models are fine to flat tow. You are also correct in that the front of the paceman and countryman will be the same. Lets start with the base plate and work our way from there. For your base plate I recommend the Roadmaster...
    view full answer...
  • Recommended Parts to Flat Tow a 2015 MINI Cooper S
    To flat tow your 2015 Mini Cooper S you will need a tow bar, base plate kit, wiring harness, supplemental braking system, and charge line. I have linked the parts below you will need along with any available videos to help you make your decisions. Tow Bar- Roadmaster Falcon All Terain item # RM-522. This has non-binding arms which makes the setup easy to connect disconnect. Base Plate Kit- Roadmaster Direct-Connect Base Plate Kit - Removable Arms item # RM-521882-5. Has removeable arms...
    view full answer...
  • Parts Needed to Flat Tow a 2015 Mini Cooper Behind an RV
    I will be happy to help you get the parts needed to flat tow your 2015 Mini Cooper behind your motor home. The first thing you will need is base plates. For your 2015 Mini Cooper use # RM-521884-5 if it's a Base model or # RM-521882-5 if it's an S model. I have linked the install details for both of them. Next you will need a compatible tow bar. The tow bar I recommend the most is the Sterling, # RM-576. This tow bar does include another item you will need, safety cables. I have linked...
    view full answer...
  • How Long Can I Expect To Spend Installing The Roadmaster Base Plate Kit On A 2014 Mini Cooper?
    Roadmaster quotes their installers to take around 2-1/2 hours, however an experienced professional should expect installation of the Roadmaster Direct-Connect Base Plate Kit # RM-521882-5 to take around 3 hours. If you are a novice, you can expect this to take a bit longer as there is some trimming of the shock absorption pad, active air shutter louvers or housing, lower air dam, air deflector, cowling and/or rock guard is required. I have also included an installation video of # RM-521882-5...
    view full answer...
  • Can A 2017 Mini Cooper S Convertible Be Flat Towed Behind An RV?
    Though we do have what you will need to get a 2017 Mini Cooper S Convertible set up for flat towing, and I do have a whole set up listed below, you do still want to check with a Mini dealer as there are a few determining factors on if it can be flat towed or not. They will need the VIN, so if you can get that, it will be the quickest way to check. You may be able to just give them all the info they need, but the VIN is the most surefire way to check. Roadmaster Direct-Connect Base Plate...
    view full answer...
  • Parts Needed to Flat Tow 2021 Mini Cooper Manual Transmission
    It's our understanding as well that basically any manual transmission vehicle is safe to be flat towed but there are some Mazda manual transmission vehicles that cannot be flat towed so it would be important for you to confirm this with a Mini dealer but that said we do have all the parts needed to flat tow your 2021 Mini Cooper with the # RM-521882-5 as a base plate kit. In addition to the base plates, you will also need a compatible tow bar, safety cables, lighting, and supplemental...
    view full answer...
  • Is Wiring Converter Needed for Flat Towing 2015 Mini Cooper
    That's a good question but a wiring converter is not needed to install the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 on your 2015 Mini Cooper. Since it has separate lighting and your motorhome has combined lighting you can add Tail Light Converter # 118158 if you want to retain your Mini's separate turn and brake signals but it isn't a requirement. In regards to the airline you will run the vacuum line of the SMI Stay-IN-Play DUO Supplemental Braking System #...
    view full answer...
    Image 1 for
  • Items Needed To Flat Tow 2021 Mini Cooper S Hardtop
    To flat tow your 2021 Mini Cooper requires at minimum a base plate kit, tow bar, wiring for indicator lights, safety cables and supplemental braking. I suggest the Roadmaster Direct-Connect Base Plate Kit with removable arms, # RM-521882-5. This hidden bracket design provides the improved aesthetics you want with a simple bolt-on installation. Please note the attached installation video of these base plates being put on to a 2016 model Mini. For your tow bar, I suggest the Roadmaster...
    view full answer...
  • Parts Needed to Flat Tow 2014 Mini Cooper Convertible S Model
    As long as your 2014 Mini Cooper Convertible is a S model we have the Roadmaster base plate kit part # RM-521882-5 as a confirmed fit. This is the easiest to use kit that fits your vehicle. 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 Terain, # RM-522. This has non-binding arms which makes the setup very easy to connect/disconnect. For...
    view full answer...
  • Parts Needed to Flat Tow a 2017 Mini Cooper 2-Door S Model Behind an RV
    In addition to the base plates # RM-521882-5 for you 2017 Mini Cooper 2-door S model you will need a compatible tow bar, safety cables, lighting, and supplemental braking. For a tow bar I recommend the Falcon 2 # RM-520. It is the most popular compatible tow bar and I have linked a video review of it for you. For safety cables use # RM-643. The coiled design helps keep the cables off of the ground. For lighting the recommended kit for your Cooper is the 6-diode kit # 154-792-118158 and...
    view full answer...
  • Parts Needed to Flat Tow 2015 MINI Cooper S Convertible
    For your 2015 Mini Cooper S Convertible we have the Roadmaster # RM-521882-5 which are a confirmed fit. I attached an install video for this for you to check out as well. 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 Terain, # RM-522. This has non-binding arms which makes the setup very easy to connect/disconnect. For lighting/safety...
    view full answer...

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


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Jacob T
Video Edited:
Jacob T
Employee Dustin K
Video by:
Dustin K
Employee Tammy D
Written by:
Tammy D
Employee Wilson B
Updated by:
Wilson B
Employee Mike S
Updated by:
Mike S
Employee Isabelle B
Updated by:
Isabelle B
Employee Amanda K
Updated by:
Amanda K
Employee David F
Test Fit:
David F
Employee Bradley B
Test Fit:
Bradley B

At etrailer 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