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Roadmaster Direct-Connect Base Plate Kit - Removable Arms

Roadmaster Direct-Connect Base Plate Kit - Removable Arms

Item # RM-521446-5
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RM-521446-5 - Twist Lock Attachment Roadmaster Base Plates
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Designed for use with motor-home-mounted tow bars, the direct-connect brackets are virtually invisible, easy to mount and remove, and they eliminate the need for a quick-disconnect crossbar on your tow bar. Installs on your vehicle's frame. 1-800-496-5010 to order Roadmaster base plates part number RM-521446-5 or order online at Free expert support on all Roadmaster products. Guaranteed Lowest Price and Fastest Shipping for Roadmaster Direct-Connect Base Plate Kit - Removable Arms. Base Plates reviews from real customers.
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  • Reviews (1349)
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Roadmaster Base Plates - RM-521446-5

  • Removable Drawbars
  • Roadmaster
  • Twist Lock Attachment

Designed for use with motor-home-mounted tow bars, the direct-connect brackets are virtually invisible, easy to mount and remove, and they eliminate the need for a quick-disconnect crossbar on your tow bar. Installs on your vehicle's frame.


  • Direct-connect brackets provide attachment points for your motor-home-mounted tow bar
  • Streamlined design creates supremely clean look
    • No obtrusive quick-disconnect crossbar
    • Hidden brackets sit even farther back than standard brackets
  • 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
  • Compatible with Roadmaster motor-home-mounted tow bars only
  • Instructions and mounting hardware included
  • Made in the USA
  • Limited Lifetime Warranty

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

The drawbars, or front arms, on this 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 each arm, simply tug the built-in pull pin to disengage the lock, twist the arm back and pull it out of the bracket. 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.

521446-5 Road Master EZ-5 Base Plate Kit

Installation Details RM-521446-5 Installation instructions

This Product Fits The Following Vehicles

Customer Reviews

Roadmaster Direct-Connect Base Plate Kit - Removable Arms - RM-521446-5

Average Customer Rating:  4.8 out of 5 stars   (1349 Customer Reviews)

Designed for use with motor-home-mounted tow bars, the direct-connect brackets are virtually invisible, easy to mount and remove, and they eliminate the need for a quick-disconnect crossbar on your tow bar. Installs on your vehicle's frame.

2017 Jeep Cherokee

This kit was a perfect fit and the instructions were superb. Removal and replacement of the entire fascia on a vehicle is intimidating, but the step by step process was amazing. I am very satisfied with the results. One tip - The instructions reference wiring, which is helpful. I mounted the fascia without attaching it so I could properly locate and cut out for the umbilical connector and breakaway switch.


We have towed our Jeep almost 2,000 miles since installing the recommended parts from etrailer and it has worked perfectly on every connect and disconnect along the way. Tows beautifully, even at 70 mph.

Excellent customer service and helpful videos from these folks. Would recommend to anyone needing help with parts and guidance in towing their toad to give them a call.

Our system is still working perfectly a year later. Our Jeep is a 2018 Cherokee Trailhawk and while we’ve seen some RV forums talk about “death wobble”, we have never experienced this using these Roadmaster products towbar & baseplate. We tow the Jeep with our 39’ Class A gasser and hardly know its back there. Even on sharp corners the Jeep follows perfectly and no binding. Connecting or disconnecting takes maybe 5 – 7 minutes. Then check all of our lights, make sure the Jeep is in neutral wbrakes off and we’re on our way. The braking system that we installed purchased from etrailer is the “Stay-n-Play Duo”. I would recommend that to anyone looking for easy operation. The installation time was a bit lengthy and involved but once completed makes all of your towing trips much easier. Just the flip of a switch and the braking system is ready for towing. No portable unit to lug around and adjust each time you tow your vehicle. The etrailer folks made the perfect recommendations for our needs and everything has worked GREAT!
Brent T - 04/05/2020


Great product and fitment. I have yet to tow my 14 Cherokee Trailhawk yet but the installation was extremely straight forward and between the detailed written directions and the video, installation was a cinch. Installed base plate, light diode, battery charger, and breakaway in 6 hours. Baseplate required very minimal facia trimming. Bought a dremel for cheap on Craigslist with a metal cutoff bit and trimming tool. Perfect tool for the job. etrailer customer service and shipping is top notch

2017 Jeep Cherokee

Absolutely great product. Installed as instructed without a problem primarily because of the video provided by etrailer on the website. Could not have done it as quickly and smoothly without that video. Roadmaster baseplate is very sturdy and does NOT require cutting the steel bumper mount flanged as the blue ox version does for my Jeep. Yet I can still use a blue ox tow bar with an inexpensive adapter on the ends. Very sturdy, quality setup.


Install was easy great product


Received product in timely matter/ product is of excellent quality. Did the install my self with the help of your great video. I have purchased many products from Etrailer Been very saddisfied. Now can tow behind motor home.


Fit perfectly on our Jeep.


very easy to install

2016 Jeep Cherokee

I installed this base plate on our 2016 Cherokee Trailhawk 1 year ago. Installation was easy with included instructions. We've experienced zero towing problems or issues during the 5000+ miles traveled. I highly recommend the Roadmaster towing products.


Lots of work to install on my 2017 Jeep Cherokee, yet the work as expected!

2017 Jeep Cherokee

eTrailer is.,in my humble opinion, the best place to source and buy all things tow related. Their knowledge base is impressive and they take the time to get the CORRECT information and products in your hands quickly. They also include product installation instructions and videos which are invaluable whether you self install or have a mechanic install the product. I have used them in almost every aspect to get my 2017 Jeep Cherokee Trailhawk prepared for dingy/toad towing. Thanks Guys!!


The product fit just as I said it would. After watching the video it took me 4 1/2 to 5 hours to completely install the base plate kit. Looks great and would recommend this product to anyone looking for one of the best tow system on the market today. Roadmaster, Inc. towing and suspension solutions

2017 Jeep Cherokee

These base plate adapters work fantastic. We tow our 2017 Jeep Cherokee trailhawk behind our class C RV without issue at all.
Thanks a lot

2015 Jeep Cherokee

Base plate installed on 2015 Cherokee trailhawk. Instructions were just fine. Pics were great. However lets get a warning in there on step 6, when drilling through the rivet on the drivers side, be careful because the winshield washer fluid reservoir is just on the other side. I drilled right into it and dropped a full tank on my dad's garage floor, not cool!
Very well built, heavy duty. First tow this weekend!

2015 Jeep Cherokee

The product was exactly as described and shipment was expedient. etrailer will always be my first choice for my trailing needs.

2015 Jeep Cherokee

Fast delivery, easy installation on Jeep Cherokee Trailhawk, 2015 model.

2017 Jeep Cherokee

My husband installed the base plate in about 3 hours. It wasn't too difficult.


So far everything good, haven't installed it yet. Very pleased with the service.

2015 Jeep Cherokee

Good product and has low profile

2015 Jeep Cherokee

comes with all needed hardware, easy to install, very strong





Everything is doing very good.

2015 Jeep Cherokee

Show More Reviews

See what our Experts say about this Roadmaster Base Plates

  • How Do EZ5 Roadmaster Base Plate Kits Attach to Falcon 2 Tow Bar
    An EZ-5 base plate kit like the # RM-521446-5 that you referenced can attach to your Falcon 2 Tow Bar part # RM-522. With an EZ5 base plate you will attach directly to the arms of the tow bar without using the quick disconnect crossbar setup. Instead of running the thick pin through the crossbar of the base plate it would go directly to the base plate like in the picture I attached. I also attached a help article on the different Roadmaster base plates as well.
    view full answer...
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  • Does the Roadmaster Base Plate Kit RM-521446-5 Come with Rivets Needed to Complete Install
    Actually the plastic pop rivets that are needed to complete the install of the Roadmaster base plate kit part # RM-521446-5 are included with the base plate kit. You would not need to source them elsewhere. You would only need to provide the rivet gun.
    view full answer...
  • How Are Safety Chain Brackets On Sterling Tow Bar Used With 2016 Jeep Cherokee Trailhawk
    I have attached a photo of the Sterling Tow Bar safety cable brackets you can check out. I have an arrow pointing to the brackets. These brackets are used when you attach to base plates that have a bar like the one shown in the photo. These brackets are not used when you are installing the EZ5 Base Plate Kit, part # RM-521446-5 on your 2015 Trailhawk. There is no place to attach them to. That is why the bracket needs to be installed on the vehicle. If your Cherokee has 4 wheel drive...
    view full answer...
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  • Where Should Safety Chains Attach Roadmaster Base Plate Kit on 2018 Jeep Grand Cherokee Trailhawk
    Most likely it would be fine to use the tow hooks of your Grand Cherokee Trailhawk for safety cables when flat towing but we have to recommend you stick with Roadmaster's recommendation and use the tab on the base plate like in what I attached a picture of.
    view full answer...
    Image 1 for
  • Does Flat Towing 2014 Jeep Cherokee Trailhawk Require Starting Engine Periodically
    From what I found online for your 2014 Jeep Cherokee Trailhawk there is no need to start the engine periodically as you tow it. For the full list of requirements to flat tow the vehicle though you'd need to check the owners manual.
    view full answer...
  • Recommended Base Plate For A 2015 Jeep Cherokee Trailhawk With Roadmaster BlackHawk Tow Bar
    We actually have two options for base plates on your 2015 Jeep Cherokee Trailhawk that are compatible with your Roadmaster Black Hawk tow bar. First is the # RM-521446-4 that will connect to the crossbar at the end of the tow bar and looks to be how your last base plate was attached. However, we also have the # RM-521446-5. This will not need that crossbar and will actually attach directly to the fittings on the ends of the arms. This is the easier way to go and is the one I recommend....
    view full answer...
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  • Difference Between EZ5 and EZ4 Base Plate Kits for 2017 Jeep Cherokee Trailhawk
    You basically have the differences figured out. The EZ5 part # RM-521446-5 attaches directly to the tow bar and the part # RM-521446-4 requires you to use the included crossbar that comes with tow bars from Roadmaster like the very popular Falcon # RM-520. I would go with the EZ5 if it were me since it's one less thing to hook up. I attached install videos for both base plate kits as well.
    view full answer...
  • Base Plate for 2017 Jeep Cherokee Trailhawk for Use with Falcon 2 Tow Bar RM-520
    The base plate you can use on your 2017 Jeep Cherokee Trailhawk is the Roadmaster EZ5 # RM-521446-5 and this will work fine with your Falcon 2 tow bar # RM-520. The EZ5 base plates will be slightly easier to install than the EZ4 model # RM-521446-4. Both base plates work on the Cherokee Trailhawk without Active Air Shutters.
    view full answer...
  • Is An Adapter Needed To Connect The Roadmaster Falcon 2 Bar With The Roadmaster EZ-5 Base Plate?
    If you have the Roadmaster Falcon 2 Tow Bar # RM-520, then you do not need an adapter to connect to the Roadmaster Direct-Connect Base Plate Kit # RM-521446-5.
    view full answer...
  • Can I Use Double Hook Safety Cables with Roadmaster Sterling Tow Bar and Direct Connect Base Plates
    Yes. You can really use any safety cables with your Roadmaster Sterling All-Terrain # RM-576 as long as your base plates have a connection spot on them for the hooks; the Roadmaster Direct Connect Base Plates # RM-521446-5 for a 2018 Jeep Cherokee Trailhawk have spots to connect hook ends on safety cables. You can use a set of double hook safety cables like the # RM-646 to connect from the RV to your base plates. If you've got a different year Cherokee Trailhawk and need help picking out...
    view full answer...
  • Adapter Needed to Tow Vehicle with Roadmaster EZ5 Base Plate Kit and Blue Ox Tow Bar
    To use a Roadmaster EZ5 base plate like part # RM-521447-5 with a Blue Ox Ascent tow bar you'd just need the adapter part # BX88185 and you'd be set. You would not need to swap the pins either.
    view full answer...
  • Comparin EZ4 and EZ5 Base Plate Kit for Flat Towing 2015 Jeep Cherokee Trailhawk
    We have two different style of Roadmaster base plate kits that fit your 2015 Jeep Cherokee Trailhawk. The EZ5 part # RM-521446-5 which does not require the use of the included crossbar of a tow bar, or the EZ4 part # RM-521446-4 which does. If it were me I would go with the EZ5 as it's a simpler connection that's easier to make. Both work great with the Roadmaster Sterling part # RM-576 which is a very nice tow bar that you'll really like. It comes with safety cables too. For lighting...
    view full answer...
  • Parts Needed to Flat Tow a 2016 Jeep Cherokee Trailhawk Behind an RV Using Sterling Tow Bar
    To start, you can use the Sterling tow bar # RM-576 with the EZ 5 base plates, # RM-521446-5, on your 2016 Jeep Cherokee Trailhawk. But the cable anchors must be attached to the frame of the vehicle or welded to the receiver portion of the bracket. The crossbar is required when using the tow bar with EZ or XL base plates. It is not required on MX or MS base plates but there are only EZ base plates for your vehicle. The same goes for any Roadmaster tow bar. So it would be easier to just...
    view full answer...
  • Recommended Base Plate Kit For A 2018 Jeep Cherokee Trailhawk
    When it comes to installing the base plate to your 2018 Jeep Cherokee Trailhawk The Roadmaster Direct-Connect Base Plate Kit - Removable Arms # RM-521446-5 is confirmed to fit your vehicle and will work with your Blackhawk Towbar. The baseplate has a simple installation with no welding required, and has a black powder coat finish which is durable and corrosion resistant. The etrailer Trailer Hitch Receiver - Custom Fit - Matte Black Finish - Class III - 2 inch # e62TR is confirmed to...
    view full answer...
  • Blue Ox Base Plate For 2018 Jeep Cherokee Trailhawk or Adapter For Blue Ox Tow Bar For Roadmaster
    Yep, actually there is both; a Blue Ox base plate that fits your 2018 Jeep Cherokee Trailhawk, or there is an adapter for your Blue Ox tow bar for the Roadmaster base plates that fit. I verified with Blue Ox that you were correct about the part number of their base plates that fit your '18 Cherokee Trailhawk, which is the following: - Blue Ox Base Plate Kit # BX1136 So you can go that route, or if you like the Roadmaster base plates, you can also use them along with your Blue Ox tow bar...
    view full answer...
  • Can Blue Ox Alpha Tow Bar be Used with Roadmaster EZ5 Base Plate Kit
    To use a Blue Ox Alpha Tow Bar part # BX7380 with an EZ5 base plate kit like part # RM-521446-5 you only need the correct adapter part # BX88185 and you'd be good.
    view full answer...
  • Base Kit and Adapter to Flat Tow 2016 Jeep Cherokee Trailhawk with Ready Brute II Tow Bar
    For the Ready Brute II tow bar that you have the only base plate kit adapter we offer is the # BX88297 which only works with Blue Ox base plate kits. So for your 2016 Jeep Cherokee Trailhawk you'd need to use their base plate kit part # BX1136 and you'd be set.
    view full answer...
  • Picking Out Replacement Arms for Roadmaster Base Plate Kit on 2015 Jeep Cherokee
    So you definitely have a Roadmaster base plate kit on your 2015 Jeep Cherokee and the part # RM-ARMS is the correct part you'll need to get the replacement arms but we have to determine whether you have the part # RM-521447-5 or the # RM-521447-4. The way you'll be able to tell is to look closer to where the kit attaches to the front of the vehicle frame. If there's an extra gusset where the steel beam connects to the flat plate you have the # RM-521447-5 or if the gusset is not there...
    view full answer...
    Image 1 for Image 2 for
  • Parts Needed to Flat Tow 2017 Jeep Cherokee Trailhawk
    We definitely can help with a flat towing setup for your 2017 Jeep Cherokee Trailhawk. The first thing you need is a base plate kit like the Roadmaster Direct Connect kit part # RM-521446-5 which is easy to use and install. I attached an install video for more info on this as well. For lighting/safety cables, locks, and covers for the tow bar we have the Roadmaster Falcon All Terrain kit part # RM-9243-1 which comes with all of that as one part number. The diode kit that comes with this...
    view full answer...
  • Equipment Needed to Flat Tow 2014 Jeep Cherokee Behind Motorhome
    It looks like you're pretty much on track. The # RM-676 Nighthawk tow bar would be a good choice, it includes the safety cables and the wire umbilical as well as the wiring connector that would install on the front of the Cherokee. You'd need to cut the 4 pole connector off the # HM56208 and wire it into the connector included with the tow bar, but other than that, the # HM56208 would work great. Since you have the Trailhawk sub-model, the # RM-521447-5 base plates you mentioned wouldn't...
    view full answer...
  • Parts Needed to Flat Tow 2018 Jeep Cherokee Trailhawk
    To flat tow your 2018 Jeep Cherokee Trailhawk behind your motor home, you will need a base plate kit, tow bar, safety cables, a lighting solution and a supplemental braking system. Starting with the base plate kit, I recommend the Roadmaster EZ5 Base Plate Kit # RM-521446-5. I checked with Roadmaster and confirmed that these will fit your 2018 Cherokee Trailhawk. The EZ5 brackets are virtually invisible and easy to mount and remove. Then for a compatible tow bar, I recommend the Roadmaster...
    view full answer...
  • Parts Needed to Flat Tow 2016 Jeep Cherokee Trailhawk
    There is a Mopar-only harness that you'll need to flat tow your 2016 Jeep Trailhawk. It recently got pulled from the market and the last we heard is they are working on a new part number to replace it (as of April 2018). It used to be part number 68321424AB though. If you check direcly with Mopar they'll be able to give you the status on the harness. For a base plate kit you'll want the part # RM-521446-5 which is a confirmed fit and will work well. In addition to the base plates, you...
    view full answer...
  • Parts Needed to Flat Tow a 2018 Jeep Cherokee Trail Hawk
    To flat tow your 2018 Jeep Cherokee Trail Hawk you will need at least 5 parts. These 5 parts are a base plate kit, tow bar, tow bar wiring, safety chains and a supplemental braking system. You may need additional parts depending on what is recommended in the owners manual for your Cherokee Trail Hawk. I have included a recommendation for each part below that is compatible with your 2018 Jeep Cherokee Trail Hawk and a brief description of the purpose it serves. Base Plate Kit: This is a...
    view full answer...
  • Parts Needed to Flat Tow a 2015 Jeep Cherokee Behind a Motor Home with Falcon 2 Tow Bar
    There are a few different base plate options available for your 2015 Jeep Cherokee. If you have a Trailhawk model you can use # RM-521446-4 or # RM-521446-5. And if you have a Latitude or Limited model you can use # RM-521447-4 or # RM-521447-5. Any of the above base plates will be compatible with your Falcon 2 tow bar, # RM-520. If you need safety cables I recommend # RM-643. The coiled design helps keep the cables off of the ground. For lighting, if you will not be towing the Jeep very...
    view full answer...

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