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  1. Tow Bar Base Plate
  2. Roadmaster
  3. Removable Draw Bars
  4. Twist Lock Attachment
Roadmaster Crossbar-Style Base Plate Kit - Removable Arms
Roadmaster

Roadmaster Crossbar-Style Base Plate Kit - Removable Arms

Part Number: RM-521446-4
In Stock
$485.00
Retail:$550.00
You Save: $65.00
Tow Bar Base Plate

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Roadmaster's crossbar-style 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 Crossbar-Style Base Plate Kit - Removable Arms part number RM-521446-4 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (903)
  • Q & A (0)
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Roadmaster Tow Bar Base Plate - RM-521446-4

  • Removable Draw Bars
  • Roadmaster
  • Twist Lock Attachment

Roadmaster's crossbar-style 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.


Features:

  • Hidden bracket design provides improved aesthetics compared with standard brackets
    • Crossbar-style 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
  • Compatible with Roadmaster tow bars with use of quick-disconnect crossbar (910021-00 - sold separately)
  • Instructions and mounting hardware included
  • Made in the USA
  • Limited Lifetime Warranty


The drawbars, or front arms, on the crossbar-style series 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, simply twist the arms back and pull them out. 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.



521446-4 Road Master EZ-4 Base Plate Kit

Installation Details RM-521446-4 Installation instructions

This Product Fits The Following Vehicles




Customer Satisfaction Score:


Customer Reviews

Roadmaster Crossbar-Style Base Plate Kit - Removable Arms - RM-521446-4

Average Customer Rating:  4.8 out of 5 stars   (903 Customer Reviews)

Roadmaster's crossbar-style 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:
2016 Jeep Cherokee

Fit perfectly. Straight forward instructions and etrailer videos were a great help. The provided 4 bolts for the upper frame did not fit on the Jeep so just used bolts that had been removed. Product arrived in a timely manner. Delivery service rep was excellent.



by:

I am very satisfied with your product.Installation was easy and instructions were
easy to follow.I would recommend this to anyone considering a purchase.

Bob W.

2/8/2019

no problems, still happy with product



by:
2015 Jeep Cherokee

We wanted a very high strength towing system for our Jeep. After completing our homework we did purchase this base-plate for our automobile. My son and I put them on in about two hours time and if you follow the supplied directions was fairly easy to do if you are pretty good with your hands and tools. They are easy to connect and disconnect when in use. I would recommend this product and seller.



by:
Jeep

This was fantastic. Everything I needed to wire factory lights on my Jeep to the trailer plug on my RV. Quality products at a good price and prompt delivery. NICE!



by:
2015 Jeep Cherokee

Ordered the EZ4 Base Plate Kit for our 2015 Cherokee Trail Hawk on July 17th, it shipped on the 17th and we received it on Jul 21st. Worked with Jean P @ etrailer, who was great to work with, for verifying the correct kit and getting it sent. Haven't got it installed yet, but parts look well made. Will recommend etrailer to our friends.



by:
2016 Jeep Cherokee

First I have to say that I have never worked with a better company than yours. I ordered the products early on a Sunday morning and received an email stating that the order was shipped that very night. You folks give very good customer service. You answered questions that I had before I made my order and your answers were right on. This kit was the one that I most dreaded to work on, mainly because of all the dismantling I had to do to the car. After watching your videos a couple of times and following the instructions exactly, this was the easiest project that I have done yet to my tow vehicle. I took be about 4 hours to install this and it was a very easy task. I want to thank you for the time and effort your company has put into making the installations of your products very easy. I will definitely be doing business with you again and will advise friends and relatives to do so as well.



by:
2016 Jeep Cherokee

Perfect fit on my 2016 Cherokee Trailhawk. Easy installation after getting over having to disassemble much of the front of the new vehicle.



by:

Easy installation. Detailed instructions easy to follow



by:

Fit well. Videos were very helpful. Medium skill level required to install. Some modification of body parts required.



by:
2015 Jeep Cherokee

fast shipping.Good instructions and well built. need I say more?



by:

works great and was easy to put on



by:
2016 Jeep Cherokee

Fit perfect on my 2016 Cherokee. Vidio was a big help,



by:
2014 Jeep Cherokee

Installed and works great



by:

Products as expected, great.



by:



by:

This was a straightforward install. The instructions were easy to understand and follow. All the necessary parts and hardware were included. It is pretty well hidden once installed. I highly recommend this base plate and etrailer.



by:

The install went well. Product is very sturdy and has held up well with no issues. I tow my Wrangler regularly behind my motorhome. I would recommend this product to friends.



by:

great fit. a slight cut needed to be made in the bumper bracket to facilitate the round tube to fit through the bracket. but, other than that, it was an easy install took about 2 hours if you include the coffee brakes. this part is highly recommended. Fast shipping. the beast human service. thank you.



by:

Had Base Plate installed today, shop gave me 2.5 hr labor time. I returned just under 2hrs and they were backing my car out the shop. They parked it facing me. I told the Mechanic "That was quick" He said that's because it wouldn't fit. I was disappointed and asked what do I owe you for your labor> He laughed out loud and said it on there, but hard to see. I was so surprised and pleased you have to just about get down on your knees and bend down to see it. took me about 8 min to install everything and connect it to the Tow vehicle. I'm very pleased with it.



by:

Great base plate kit, installed fast without issues on my 2012 jeep wrangler jk,delivered quickly, 5 star service. Thanks etrailer



by:

Working great on my Fiat 500l with the automatic euro transmission. Towed over 10000 miles and was easily installed using etrailer video instructions. Yes you can tow a Fiat 500 with the automatic euro transmission. The firmware was flashed on a recall and revised in the manual. Most dealers don’t even bother checking for the latest version.



by:

The Jeep project went very well everything fit great and worked well. I really love Roadmaster products and quality and your company is the best place to purchase them. I sold the Jeep and replaced it with a new 2019 Chevy Equinox 2.0 L AWD and just purchased and installed the following items from you and installed them, RM-156-25 & RM-156-75 Battery Charge Line Kit, RM-146-7 Flex Coil Kit, RM-523193-4 EZ4 Plate Kit, RM-88333 Custom Seat Adapter, RM-751489 Stop Light Switch Kit and a RM-98160 Second Vehicle Brake Kit w/brakeaway. All these parts were in stock and arrived quickly and normal with you people, I really enjoy the o-line vidios as I do all my own installs. Thank you so much for your great service.
I will attach pictures of my install, you will see how I was able to fab a bracket and attach it to the existing mount on the base plate to mount the brakeaway switch and the air connection for the brake system.
I also fabricated a tail light bar as I didn't want to use mag-lights or splice into the factory lights and bulbs installed into the lights would not work as the factory brake lights will come on when the brake system is applyed and the turn siginals would not be visable.
Thanks for all you do, I would and do recommend you people to everyone who needs your products. Rob



by:

Ordered Product on Saturday afternoon, delivered on Wednesday, Installed on Friday. My 23 Wrangler Sahara 4Xe did take the spacer and washer on each side of the frame and was no problem getting them to fit. The lower passenger outside nut that holds on the bumper will not tighten down all the way, the flange of the factory nut gets caught in a slot in the base plate on that side. Will look into a standard nut to see if that will work - it is tight against the slot and holding.



by:

Great product for my 2014 Wrangler. Good materials, solid attachment to vehicle, and looks good. The e trailer installation video was great for assisting installation. Made the install much quicker and easier. The most difficult procedure for me was disconnecting the wiring harness on the back of the bumper. An old tack puller (or tool of similar design) would have been great for leveraging the pins out of their holes. Cutting the air dam was a slow process to ensure I didn't cut too much. A paper template to mark where to cut the air dam would make this process much simpler. Again, I can't emphasize enough how great the installation video was for making the steps easier.



by:

etrailer service was great. Received my Roadmaster base plate in 3 days. The directions from Roadmaster were fair, but etrailer's video was excellent. I had trouble mounting my base plate as the space between the two baseplate ends were too tight. I needed to use a floor jack and bottle jack to get it on. Once it was in position everything went together fine. I trimmed the Jeep' air dam differently keeping the ends that Roadmaster wants you to cut off. I think it looks better. I also had to modify the center cut in the air dam to accommodate the breakaway switch I have.


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Show More Reviews

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

  • 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...
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  • 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....
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  • 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...
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  • Flat Towing Setup Recommendation for a 2015 Jeep Cherokee Trailhawk
    I like the Roadmaster Base Plate kit part # RM-521446-4 for your 2015 Jeep Cherokee Trailhawk because it will use the crossbar of the tow bar you go with which will provide more support that the other Roadmaster option. The Roadmaster Falcon Tow Bar part # RM-522 would be the nicer tow bar since it has built in freedom latches that will make relieving tension in the arms of the tow bar much easier than the # RM-520 that will require you to use a special tool. For safety cables you can...
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  • Flat Towing Recommendations For A 2014 Jeep Cherokee
    To flat tow you'll need the following equipment: Tow Bar: Roadmaster Falcon 2 Tow Bar for Blue Ox Base Plates - Motorhome Mount - 2" Hitch - 6,000lbs Item # RM-525. Tow Bar Wiring: Roadmaster Universal Hy-Power Diode Wiring Kit Item # RM-154. This is a one time setup and will use your vehicle's lights instead of you having to run magnetic lights to the back of your car every time you want to tow it. Base Plates: Roadmaster Direct-Connect Base Plate Kit - Removable Arms Item # RM-521447-5....
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  • Does Odometer Accumulate Miles When Vehicle is Being Flat Towed
    No, when you are flat towing a vehicle like your 2017 Jeep Cherokee the vehicle's odometer will not keep track of the miles just as if you were driving the vehicle. On newer vehicles like your that have digital odometers nearly all of them do not accumulate miles when being flat towed.
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  • Parts Needed to Flat Tow 2014 Jeep Cherokee Trailhawk
    First you'd need to start with a base plate kit for your 2014 Jeep Cherokee Trailhawk. For that the Roadmaster Kit part # RM-521446-4 would be a great option. 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 2, # RM-520. For safety cables you can use # RM-643. The coiled design...
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  • Parts Needed to Flat Tow a 2014 Jeep Cherokee Trailhawk with a Stowmaster Tow Bar
    For your 2014 Jeep Cherokee Trailhawk the correct Roadmaster base plate kit is the part # RM-521446-4. This will work with your Stowmaster tow bar. In addition to the base plates and tow bar you will also need, safety cables, lighting, and supplemental braking to flat tow your vehicle. For safety cables you can use # RM-643. The coiled design helps keep the cables off of the ground. For lighting you can use the diode kit # RM-152, and not have to worry about cutting into your taillight...
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  • Is The Blue Ox Patriot Portable Braking System Compatible with 2014 Jeep Cherokee
    A proportional braking system that physically presses down on the brake pedal inside your Jeep Cherokee like the Blue Ox Patriot # BLU37TR is designed to work with towed vehicles that do not have the ignition turned on like you mentioned in your question. Applying the brakes in this manner will not damage the braking system in your Jeep Cherokee. This is a great product that will activate the brakes in your Jeep at the same time and with the same intensity that you apply to them in your...
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  • Roadmaster Base Plate Kit Recommendation for 2017 Jeep Cherokee
    For your 2017 Jeep Cherokee you would want the Roadmaster Base Plate # RM-521447-4 if you have a Latitude, Limited, and Overland, or if you have a Trailhawk you would want # RM-521446-4.
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  • Sway Bar Recommend for 2014 Itasca Cambria and Flat Tow Parts for 2014 Jeep Cherokee Trailhawk
    The Jeep Active Drive II is the correct 4WD transfer case to allow your 2014 Jeep Cherokee Trailhawk to be flat towed as it has a neutral setting that is used for flat towing. There are no speed restrictions I was able to find for your vehicle either. Your 2014 Itasca Cambria Class C would have no problem flat towing this vehicle too. For sway bars you'd want the part # RM-1139-147 for the rear bar, and part # RM-1139-176 for the front. This will make a huge difference in the handling...
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  • Base Plate Kit Recommendation for Roadmaster Tow Bar with 2014 Jeep Cherokee
    The Roadmaster EZ4 base plate kit part # RM-521446-4 that you referenced can be used with the Roadmaster Guardian Rock Guards like part # RM-4000 or other Roadmaster protective shields you may have. Since this base plate requires the use of the crossbar on the Roadmaster tow bar the shields can be used. For lighting you can use the diode kit, # RM-15267, and not have to worry about cutting into the taillight housing. This will splice into your taillight wiring to allow your tow vehicle...
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  • Will Base Plates From 1993 Jeep YJ Fit A 2016 Jeep Cherokee Trailhawk
    The Roadmaster base plates you have installed on your 1993 YJ will not work on the 2016 Trailhawk, but we do offer the right base plates for you. I recommend the Roadmaster EZ4 Base Plate kit, part # RM-521446-4. This base plate kit features removable arms which make this system almost invisible. I have attached a link to an installation video for these base plates on a Cherokee you can check out. When flat-towing, you need five items. You need base plates, a tow bar, safety cables, lighting...
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  • Is a Brake Light Relay Required when Flat Towing a 2017 Jeep Cherokee and Air Force 1 Braking System
    Whether or not you need the brake light relay # RM-88400 for your 2017 Jeep Cherokee depends on the lighting kit you are using. The # RM-88400 relay is not required when using magnetic tow lights. With any other type of lighting kit you will need the relay. A brake light switch kit is different than the relay. You do not need a brake light switch kit for the 2017 Jeep Cherokee and that may have been what customer service meant.
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  • 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...
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  • Parts Needed for 2016 Jeep Cherokee Trailhawk for Flat Towing
    I checked with Roadmaster just now and for your 2016 Jeep Cherokee Trailhawk the # RM-15267 is a confirmed fit and would work well for tow bar lighting. For a base plate kit you would want the part # RM-521446-4 which is a confirmed fit. Then the most popular tow bar is the Falcon part # RM-520. The SMI DUO part # SM99251 would then fit the vehicle as well. I attached an install video that shows this in a similar Cherokee as well. For a charge line you then would want the part # RM-156-25...
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  • Parts Needed to Flat Tow a 2016 Jeep Cherokee Behind a Motor Home
    It does not appear that you have to full fuses on your 2016 Jeep Cherokee to flat tow it behind a motor home. I recommend looking in the recreational towing section of the Jeep owner's manual to confirm. This information is for the Cherokee, not the Grand Cherokee. If the Cherokee is a Latitude or Limited model I recommend Roadmaster base plates # RM-521447-4. If it is a Trailhawk model I recommend # RM-521446-4. I have linked videos showing example installations for each set. For a compatible...
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  • Baseplate Installation for a 2014 Jeep Cherokee Trailhawk
    I'd say that if you set aside an afternoon to the install of the Roadmaster Base Plate Kit # RM-521446-4 on your 2014 Jeep Cherokee Trailhawk you would have no problem installing it since you said you have a fair mechanical aptitude. I attached an FAQ on flat-towing for you to check out also. If your Cherokee has 4 wheel drive or the Active Drive II system, to maintain the vehicle's stable steering while being flat towed you will want to install the Mopar accessory kit 68321424AB, available...
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  • Parts Needed To Connect Roadmaster Base Plate On 2015 Jeep Cherokee Trailhawk To Duncan Tow Bar
    If you have the Roadmaster Crossbar-Style Base Plate Kit # RM-521446-4 on your 2015 Jeep Cherokee Trailhawk you can use the RoadMaster Base Plates to Duncan Adapter # RM-038. If you have the Roadmaster Direct-Connect Base Plate Kit # RM-521446-5 you will need new Arms # RM-ARMS to change it to the crossbar-style arms. I do recommend checking the condition of your tow bar to determine if it will need any repair. Depending on if the tow bar needs any repair it may make more financial sense...
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  • 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 Latitude
    The same fit information for the 2015 Jeep Cherokee Trailhawk applies for the 2016 Jeep Cherokee Trailhawk. So the part # RM-521446-4 would fit your vehicle and would not require removing the tow hooks. I have attached the installation instructions you can check out. There may be some trimming of the spoiler, air dam, grill, or fascia required. The instructions have some great photos that will help with installation. Most likely you will also need a high low adapter so that the tow bar...
    view full answer...
  • 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...
  • Parts Needed to Flat Tow a 2015 Grand Cherokee 4x4
    At the very least you would need a new base plate kit like part # RM-521440-4 for if you have any model aside from a Summit or a SRT-8 or part # 521440-1B for if you have a Summit. I attached an install video for you to check out. You may also need new lighting depending on what you used with the Rubicon. For lighting you can use the diode kit, # RM-15267, and not have to worry about cutting into the taillight housing. This will splice into your taillight wiring to allow your tow vehicle...
    view full answer...
  • How to Flat Tow a 2014 Jeep Cherokee Trailhawk with Roadmaster Stowmaster Tow Bar
    I have a solution for you that will let you flat tow your 2014 Jeep Grand Cherokee Latitude with your Roadmaster Stowmaster Tow Bar part # RM-501, but it will require you to use a Blue Ox base plate kit part # BX1136 and then the Roadmaster to Blue Ox Base Plate adapter part # RM-031. Or you would have to upgrade your tow bar to a set that stores on the tow vehicle like the Roadmaster Falcon part # RM-520. The EZ4 base plate kits are not compatible with tow bars that store on the towed...
    view full answer...


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Info for this part was:

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