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

Roadmaster Direct-Connect Base Plate Kit - Removable Arms

Part Number: RM-521440-5
In Stock
$525.00
Tow Bar Base Plate

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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. Great Prices for the best tow bar base plate from Roadmaster. Roadmaster Direct-Connect Base Plate Kit - Removable Arms part number RM-521440-5 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Roadmaster Tow Bar Base Plate - RM-521440-5

Highlights

  • Virtually invisible installation: Hidden within vehicle grille for a clean look.
  • Innovative Twist Lock feature: Secure and easy arm removal without tools.
  • Durable all-steel construction: Offers exceptional strength and corrosion resistance.
  • Simple DIY installation: No welding required, custom-fit for your vehicle.
  • Ideal for tow bar compatibility: Pairs with Roadmaster motor-home-mounted tow bars only.
  • Made in the USA: High-quality manufacturing backed by a limited lifetime warranty.

Features to know about

Effortless Connect and Disconnect: Twist Lock Attachment

Have you ever struggled with cumbersome towing setups? The Roadmaster Direct-Connect Base Plate Kit makes connecting and disconnecting a breeze thanks to its innovative Twist Lock Attachment. Just insert the drawbars into the brackets, twist to secure, and you’re ready to hit the road. To disconnect, a simple twist and pull remove the arms just as easily.

Sleek and Inconspicuous Design: Virtually Invisible Brackets

Say goodbye to unsightly equipment sticking out of your vehicle. With the Roadmaster kit, the hidden brackets sit far back on your vehicle’s frame, keeping them out of plain sight. Once the drawbars are removed, the remaining brackets are virtually invisible, ensuring your car looks pristine when not in tow.

Robust and Ready for the Road: All-Steel, Computer-Cut Construction

For those who demand robust reliability, the Roadmaster Base Plate Kit delivers with its all-steel, computer-cut construction. This ensures exceptional strength that can handle the rigors of the road while a black powder coat finish provides durable, corrosion-resistant protection against the elements.

Custom Fit for Your Vehicle: Custom Base Plates and Easy Installation

Every vehicle is different, but that attention to detail is exactly where Roadmaster shines. The custom base plates are engineered to fit your specific vehicle model, ensuring a perfect and seamless fit. Plus, installing the kit is simple and requires no welding—just follow the clear instructions and use the included hardware.

Built to Last with American Craftsmanship: Made in the USA

Proudly made in the USA, this Roadmaster base plate kit combines quality craftsmanship with top-tier materials. Backed by a limited lifetime warranty, it's a trusted investment for those who value durability, performance, and a commitment to excellence.

521440-5 Road Master EZ-5 Base Plate Kit

Installation Details RM-521440-5 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.8

3111 reviews
5 Stars
(2729)
4 Stars
(264)
3 Stars
(48)
2 Stars
(26)
1 Star
(44)
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.

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

  • Parts Needed to Flat Tow 2014-2018 Jeep Grand Cherokee
    In order to flat tow your Jeep Grand Cherokee behind an RV you need a base plate kit, a tow bar, safety cables, a lighting solution, a supplemental braking system, and likely a high-low adapter. Starting with the base plates, I recommend the Roadmaster EZ5 Base Plate Kit # RM-521440-5. This kit is custom fit for your Grand Cherokee and features a hidden bracket design that provides a clean look when you aren't towing. Its black powder coat finish is durable and corrosion resistant. Then...
    view full answer...
  • Recommended Diode Kit for a 2021 Jeep Grand Cherokee Limited
    Hey Andy! The premium lighting group that Jeep offers for the 2021 Grand Cherokee Limited won't affect which diode wiring kit you need. The option that will determine the correct one is whether or not your Jeep has the Parksense Proximity Sensors. I have listed the parts below: Without Proximity Sensors - Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit item # RM-15267 or item # RM-152 for just the diodes With Proximity Sensors - Roadmaster Smart Diode 7-Wire to 6-Wire Wiring Kit...
    view full answer...
  • All Parts Needed to Flat Tow 2014 Jeep Grand Cherokee Behind a Motorhome
    You are correct that there are quite a few parts necessary to flat tow your 2014 Jeep Grand Cherokee behind your motorhome but I'll be happy to list everything you'll need. As you mentioned, you'll need base plates, and the Roadmaster EZ5 # RM-521440-5 is a confirmed fit for your Jeep so long as it is not an SRT-8 model, which since you listed this part I assume it is not. For a tow bar I recommend the Roadmaster Falcon 2 # RM-520 which is out most popular option due to how easy it is...
    view full answer...
  • Base Plate Kit Recommendation for 2019 Jeep Grand Cherokee Trailhawk
    Hey Keith, for your 2019 Jeep Grand Cherokee Trailhawk with adaptive cruise control I would recommend the Roadmaster Direct Connect base plate kit part # RM-521440-5 as it's easiest option to use. Do you have the rest of your flat towing setup already? You'll also want a Roadmaster tow bar like the part # RM-520.
    view full answer...
  • Will 2014 Jeep Grand Cherokee Summit Require Brake Light Relay Kit
    Hi Patrick; the # RM-88400 is not required for your Patriot 2 or the Hopkins # HM59VR. It is necessary on some vehicles depending on the braking system, but not on your 2014 Grand Cherokee. You will also need a base plate kit # RM-521440-5, tow bar # e74ZR (includes safety cables), and possibly a high-low adapter to complete your setup. If you use the etrailer tow bar it has a built-in rise/drop of 1-1/2" so an adapter may not be necessary. I went ahead and attached a help article below...
    view full answer...
  • Which SMI Flat Tow Braking Kit for 2020 Grand Cherokee Trailhawk
    If you want a permanently installed flat tow braking setup for your 2020 Jeep Cherokee and your tow vehicle has air brakes the Air Force One kit part # SM99243 is the way to go. I attached an install video for this on a similar 2019 Jeep Grand Cherokee as well. If your tow vehicle does not have air brakes though the SMI DUO part # SM99251 is a bit easier to install and is our installers favorite due to ease of install and performance. I attached an install video for this kit as well. To...
    view full answer...
  • Parts Needed to Flat Tow a 2017 Grand Cherokee Trailhawk
    The first thing you need to flat tow your 2017 Jeep Grand Cherokee Trailhawk is the Roadmaster Direct-Connect kit part # RM-521440-5 which is the easiest to use and best priced option for your vehicle. 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....
    view full answer...
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  • What do I Need to flat Tow a 2011 to 2013 Jeep Grand Cherokee Behind a Motorhome
    To flat tow a 2011 to 2013 Jeep Grand Cherokee there are 5 major components needed: base plates, tow bar, safety cables, lighting, and supplemental braking. The base plates are what attach to the front of the Jeep and provide a safe and proper attachment point for the tow bar. For the 2011 to 2013 Grand Cherokee I recommend Roadmaster EZ5 base plates # RM-521440-5. These base plates feature removable arms that, when removed, makes the base plates almost invisible. I have linked a video...
    view full answer...
  • Is there a Base Plate Kit that Lets me Keep the Tow Hooks on a 2021 Jeep Grand Cherokee?
    No, the tow hooks come off no matter what brand of base plate you use. This is extremely common amongst SUVs and trucks with flat towing set ups. That's a solid anchor point and attaching a base plate there hides it extremely well. Here are the parts I recommend you use to set up a 2021 Grand Cherokee Limited 4x4 to be flat towed: Tow Bar and Safety Chains - Roadmaster Falcon 2 Tow Bar item # RM-520 and item # RM-643 Base Plate Kit - Roadmaster Direct-Connect Base Plate Kit - Removable...
    view full answer...
  • How Does Diode Wiring Get Mounted To The Roadmaster Direct-Connect Base Plate Kit # RM-521440-5
    The two posts you see sticking out from the crossmember of the Roadmaster Direct-Connect Base Plate Kit # RM-521440-5 allow for a 6-pole socket included with the # RM-15267 to bolt directly to them. Both the baseplate and wiring you picked out are a compatible fit. If you haven't picked out your tow bar and braking system then I have the following recommendations: Tow Bar: etrailer SD Non-Binding Tow Bar # e74ZR. This tow bar comes with safety cables included so you won't have to purchase...
    view full answer...
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  • Does The Steering Wheel Need To Be Free Or Locked While Towing A Jeep Grand Cherokee Trailhawk
    The steering will need to be free otherwise your wheels could lock and drag the when your motorhome makes a turn. If you haven't already picked out all of your flat towing components then I have the following recommendations: Baseplate: Roadmaster Direct-Connect Base Plate Kit # RM-521440-5. Tow Bar: etrailer SD Non-Binding Tow Bar for Roadmaster Direct-Connect Base Plates # e74ZR. This tow bar comes with safety cables included and has an adjustable head to help keep it level between...
    view full answer...
  • All Parts Needed to Flat Tow 2021 Jeep Grand Cherokee Trailhawk
    We can definitely help and get your 2021 Jeep Grand Cherokee Trailhawk outfitted with a complete flat tow set up. I'll go ahead and list out every part you need to make it easy to order: - Base Plate Kit: Roadmaster Direct-Connect Base Plate Kit # RM-521440-5 - Tow Bar: Roadmaster Nighthawk All Terrain, Non-Binding Tow Bar # RM-676 - Wiring Kit - Jeep WITHOUT ParkSense: Roadmaster Universal Hy-Power Diode Wiring Kit # RM-152 OR - Wiring Kit - Jeep WITH ParkSense: Roadmaster Wiring Kit...
    view full answer...
  • Recommended Complete Flat Towing Setup for a 2022 Jeep Grand Cherokee WK
    To tow your 2022 Jeep Grand Cherokee behind your motorhome, you're going to first need a base plate kit # RM-521440-5. This will get installed directly onto the vehicle and provide the needed attachment point for a set of tow bars # RM-676. You will however, need to see your local dealer for wiring harness information if your vehicle needs MOPAR RV towing wiring harness kit 82216418AA. Finally. you'll just need to add a wiring harness # RM63MR and a braking system # BLU37TR to make sure...
    view full answer...
  • Recommended Baseplate For A 2017 Jeep Grand Cherokee Trailhawk
    The Roadmaster Direct-Connect Base Plate Kit # RM-521440-5 is confirmed to fit 2017 Jeep Grand Cherokee models except for the SRT-8 and Trackhawk so you wouldn't have an issue with your Trailhawk. The Mopar wiring harness is such a hit or miss between different models so it's best to reach out to a local Mopar dealership with your Jeep's VIN so that they can look up whether or not it would be needed. We have no tech notes on our end stating that it would but giving them a call to confirm...
    view full answer...
  • Can I Flat Tow 2021 Jeep Grand Cherokee With etrailer # e74ZR Tow Bar?
    Yes, the etrailer # e74ZR Non-Binding Tow Bar would be a excellent choice for your Jeep and it comes with safety cables. To connect them you will need to install the Roadmaster # RM-521440-5 Direct-Connect Base Plate Kit with quick installing arms. (Cannot be used on SRT-8 or TrackHawk models. Brushguards and Tow hooks, if present, must be removed.) For Flat Tow wiring use the Roadmaster # RM-152-98146-7 Universal wiring kit which includes everything you need to connect your RV's tail,...
    view full answer...
  • Is a Mopar Flat Tow Wiring Harness Needed for a 2021 Jeep Grand Cherokee
    Yes, there is a flat-tow wiring harness for a 2021 Jeep Grand Cherokee but it's only offered by Mopar and it's part number 82216418AA. In the owner's manual it states the following, "A flat tow electric power steering enable kit is available for increased flat tow performance, contact an authorized dealer for further details.". I have attached below a list of other parts that will be needed to flat-tow the vehicle. Roadmaster Direct-Connect Base Plate Kit part # RM-521440-5 Roadmaster...
    view full answer...
  • Recommended Flat Towing Parts Needed for 2021 Jeep Grand Cherokee
    A complete flat towing setup consists of base plates, a tow bar, safety cables, tow bar wiring, supplemental braking and potentially a high/low adapter, and I can help you find all of those parts and get you on the road with your 2021 Jeep Grand Cherokee in tow. For base plates I recommend using the Roadmaster Direct-Connect Base Plate Kit - Removable Arms # RM-521440-5 because of the quality of Roadmaster towing components. These base plates come with removable arms that will keep your...
    view full answer...
  • Will the Roadmaster EZ5 Base Plate Kit Fit a 2019 Jeep Grand Cherokee Summit
    Yes, I can confirm that the Roadmaster EZ5 Base Plate Kit part # RM-521440-5 is a fit for your 2019 Jeep Grand Cherokee Summit. The amount of trimming that is required can be seen in the attached photo. I have also attached a photo of the completed installation on a model with the Summit trim package for you as well. If you are also looking for a tow bar to use with this base plate kit then I recommend the Roadmaster Nighthawk All Terrain Tow Bar part # RM-676 because it has all of the...
    view full answer...
    Image 1 for Image 2 for
  • Recommended Baseplate For A Jeep Grand Cherokee Overland Edition
    If you own a 2022 Jeep Grand Cherokee Overland that is a WL Generation then you will need the Roadmaster Direct-Connect Base Plate Kit # RM77ZR. If you own a WK Generation then you'll need the Roadmaster Direct-Connect Base Plate Kit # RM-521440-5. Your tow hooks would need to be removed to fit the baseplate. If you haven't already picked out the rest of your flat towing components then I have the following recommendations: Tow Bar: etrailer SD Non-Binding Tow Bar for Roadmaster Direct-Connect...
    view full answer...
    Image 1 for
  • Recommended Flat Towing Equipment For A 2019 Jeep Cherokee Overland
    I have the following component recommendations to flat tow your 2019 Jeep Grand Cherokee Overland, but you'll still need to reach out to your local dealer for wiring harness information if your vehicle needs MOPAR RV towing wiring harness kit #82216418AA. Baseplate: Roadmaster Direct-Connect Base Plate Kit # RM-521440-5. Tow Bar: etrailer SD Non-Binding Tow Bar for Roadmaster Direct-Connect Base Plates # e74ZR. This tow bar comes with safety cables bracketed to the arms so that you...
    view full answer...
  • Recommended Flat Towing Equipment For A 2021 Jeep Grand Cherokee
    If your 2021 Jeep grand Cherokee has 4WD with a 2-speed transfer case then you can flat tow it with all four wheels on the ground. To do so you'll need a tow bar, base plate, tow bar wiring kit, braking system, and safety cables. I have the following recommendations for you below: Tow Bar: Roadmaster Falcon All Terrain, Non-Binding Tow Bar # RM-522. This tow bar has non-binding latches and a large hookup radius to ensure connecting/disconnecting on any terrain is a breeze. Base Plate:...
    view full answer...
  • Flat Tow Package For a 2020 Jeep Grand Cherokee
    I looked up the owners manual for your 2020 Jeep Grand Cherokee. According to the manual the only model that can be flat towed (recreational towing) is the 4 wheel drive model with 4-LO range. As long as that is the model that you have then you will need the following items to flat tow your vehicle. Base Plate Kit: I recommend the Roadmaster Direct-Connect Base Plate Kit # RM-521440-5. This base plate is made in the USA and has clean streamlined look, along with a limited lifetime warranty....
    view full answer...
  • Is A Battery Charge Line Kit Required When Flat Towing A 2021 Jeep Grand Cherokee
    Yes, I highly recommend using a battery charge line kit while flat towing your 2021 Jeep Grand Cherokee. Depending on the braking system you use you'll be pulling power directly from the vehicle battery and wouldn't want to run the risk of it depleting the battery while you're towing and then have the breaking system turn off or get to your destination and unhook your Jeep only to find the battery is too low to start. If you aren't using a Brake Buddy System like the # HM39524 or # HM39530...
    view full answer...
  • Estimated Installation Time of Flat Tow Set Up on 2017 Jeep Grand Cherokee
    The installation of the Roadmaster Nighthawk Tow Bar will not take much time at all, though I believe you are asking about the time for the entire flat tow set up for your 2017 Jeep Grand Cherokee. This will of course depend on who is doing the installation and their experience level, but we can give you some good estimates of the following parts, which are a fit for your '17 Grand Cherokee (Note: the base plates do not fit SRT-8 models): - Base Plate Kit: Roadmaster Direct-Connect Base...
    view full answer...
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