Price: $449.00

Roadmaster Guardian Rock Guard

Item # RM-4000

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Retail:$470.08

Our Price: $449.00

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roadmaster accessories and parts rock guard guardian
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In Use/Installed

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  • Tow Bars
  • Vehicle Guards
  • Rock Guard
  • Roadmaster
  • Guardian
Protect your towed vehicle's finish and resale value with this car shield crafted from hollow rotationally molded high-impact polyethylene. Center panel easily attaches to the tow bar mounting bracket. Connecting rods attach to two side panels. Call 800-298-8924 to order Roadmaster accessories and parts part number RM-4000 or order online at etrailer.com. Free expert support on all Roadmaster products. Guaranteed Lowest Price and Fastest Shipping for Roadmaster Guardian Rock Guard. Accessories and Parts reviews from real customers.



Roadmaster Accessories and Parts - RM-4000

Protect your towed vehicle's finish and resale value with this car shield crafted from hollow rotationally molded high-impact polyethylene. Center panel easily attaches to the tow bar mounting bracket. Connecting rods attach to two side panels.


Features:

  • Car shield protects towed vehicle from road debris
  • Removes in seconds
  • 26" Tall x 71" wide
  • Fits all Roadmaster tow bars with quick disconnects (RM-201 - sold separately)
    • Not compatible with EZ5, MS, or MX baseplates
  • If more than one car is towed, a second vehicle kit (RM-4000-1 - sold separately) contains all the mounting hardware necessary to swap the Roadmaster Guardian from one vehicle to another


Close Up of Attachment



Installation Steps



4000 Roadmaster Guardian Rock Guard



RM-4000 Installation InstructionsInstallation Details RM-4000 Installation instructions



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Video of Roadmaster Guardian Rock Guard


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Roadmaster Guardian Rock Guard Road Test

Now we'll take it on our test course, and you can see how stable it is during maneuvers, turning. How solid it is on the front of the vehicle. It's not moving around. You'll notice how much surface area it provides protection for giving us ample protection against any rocks or debris that may be kicked up from our inaudible 00:00:18 rear tires.


Customer Reviews

Roadmaster Guardian Rock Guard - RM-4000

Average Customer Rating:  4.9 out of 5 stars   (13 Customer Reviews)

Protect your towed vehicle's finish and resale value with this car shield crafted from hollow rotationally molded high-impact polyethylene. Center panel easily attaches to the tow bar mounting bracket. Connecting rods attach to two side panels.

- RM-4000

by: Cookie12/12/2013


I won't have a chance to actually use this for a couple of weeks, but I have no reason to doubt I will be highly pleased with it as others have been. For now, I just want everyone to know what a FANTASTIC place etrailer is to do business with. My Guardian arrived much sooner than I expected. This is a company that really delivers. Best company I have ever dealt with. I will update my review later. If you are going to get this, I highly recommend the Stowawy which allows you to easily store the Guardian on the hitch receiver on your motorhome. 109952



- RM-4000

by: Gene R.04/01/2015


a good solid product by Roadmaster that looks to protect the front end of my Jeep Grand Cherokee . the install went well with only one small problem, the Stowmaster tow bar pop-ups interfere with the RM-4000 when in the store position. Other than that it is a well built product. 182194



- RM-4000

by: Dennis G10/10/2015


The Rock Guard that came is as I ordered. As i had faith it would be. My first time ordering from them. They told me that it was in stock and that it would be shipped the next day and when it would arrive....It all took place...Keep up the good work. 229705



- RM-4000

by: Garth07/06/2015


The rock guard is easy to install. It provides a good amount of protection for the vehicle. It is light fairly light weight sturdy. I use it on my Ford Xplorer along with the roadmaster rowboat and vehicle brackets 209752



- RM-4000

by: SYQ06/24/2017


Haven't used it yet but it looks it will work well. It is made of a good solid material without being too heavy to maneuver. Installs exactly as instructed. 398401



- RM-4000

by: Henry Z.05/08/2014


This product arrived in excellent condition and appears to be well constructed and durable. Only time will tell, as I have yet to install it and take a trip. 129633



- RM-4000

by: LJ03/02/2016


This product is very easy to use. And after about 10000 miles in the last year I do not have any damage to the front of my Grand Cherokee! 239164



- RM-4000

by: Pete M10/01/2014


Looks like a well made product. I have mounted it, but won't road test it until next week. As always prompt shipping from etrailer. 153866



- RM-4000

by: Bill B.08/11/2012


Very good product. Good installation instructions and easy to assemble. Another quality product from Roadmaster. 51390



- RM-4000

by: Gary D.01/19/2015


Service was great, the product is wonderful couldn't be more pleased. Again thank you for your great service. 170398



- RM-4000

by: Joe b01/28/2017


Best price,free shipping,no tax.what else can i say.patrick did a fantastic job from a to z 336429



- RM-4000

by: Bob M.04/28/2014


Quality product. Excellant service. 127744



- RM-4000

by: Al Swapp09/16/2013


Delivered on time and as promised 100201


13
13

Ask the Experts about this Roadmaster Accessories and Parts
Do you have a question about this Accessories and Part?


  • Available Options for Rock Guards to Protect Towed Vehicle
  • There are other options for protecting your towed vehicle other than the Roadmaster Guardian you mentioned. The Roadmaster Tow Defender, part # RM-4700 stretches between the RV and the towed vehicle, deflecting rocks downward before they can damage your vehicle. The Tow defender attaches to the tow bar and the quick disconnects on the vehicle base plates. We also have the Rock Tamers Mud Flap system, part # ERT00108. These flaps install on the tow bar, and are adjustable.
    view full answer...

  • EZ4 or Ez5 Roadmaster Base Plate Kit for 2015 Chevy Traverse
  • The primary difference between the two designs is the way they attach to the tow bar. The EZ5 does not use the quick-connect crossbar which provides a cleaner look, but prevents you from using some accessories that mount to the crossbar such as a Rock Guard like the Roadmaster # RM-4000. If you are at all interested in using a rock guard or protective screening, I recommend the Roadmaster EZ4 # 523175-4 on your Chevy Traverse. Otherwise the EZ5 part # RM-523175-5 would be a great choice. In...
    view full answer...

  • What Is Difference Between Roadmaster Tow Defender # RM-4700 And # RM-4750
  • The difference between the # RM-4700 and the # RM-4750 is being able to use them with your base plates. If you have the crossbar on your base plates you will need part # RM-4700. The RM-4750 is not compatible with other style base plates. Since you said you have the Roadmaster Guardian, part # RM-4000, the same issue applies. It is compatible with the base plates that have a crossbar and will not work if you have other style base plates.
    view full answer...

  • Difference Between Roadmaster EZ4 and EZ5 Base Plates for 2017 Jeep Wrangler Unlimited
  • Both the Roadmaster EZ4 Base Plate Kit # RM-521448-4 and EZ5 Base Plate Kit # RM-521448-5 will fit on your 2017 Jeep Wrangler Unlimited. The primary difference between the two designs is the way they attach to the tow bar. The EZ5 does not use the quick-connect crossbar which provides a cleaner look, but prevents you from using some accessories that mount to the crossbar such as a Rock Guard like the Roadmaster # RM-4000. If you are at all interested in using a rock guard or protective...
    view full answer...

  • Rock Guard for Blue Ox Tow Bar and American Coach Tradition Motorcoach
  • I recommend going with a Blue Ox KarGard, # BX8870, because you will not have to adapt anything and it is priced a little lower than the Roadmaster guard. The Roadmaster Guardian, # RM-4000, is designed to fit Roadmaster base plates and tow bars and has not been tested for fit on Blue Ox products.
    view full answer...

  • Windshield Protection Recommendations For Flat Towing
  • The purpose of the Roadmaster Guardian Rock Guard, # RM-4000, is to not only protect the finish and front fascia of your vehicle from rocks and other road debris, but also to keep rocks and gravel from ricocheting off of the vehicle and hitting the windshield or motorhome. To protect the windshield from rocks and debris that may make its way over the Guardian, I recommend checking out the Roadmaster Tow Defender, # RM-4700. The Tow Defender stretches from the receiver to the tow vehicle...
    view full answer...

  • Recommended Rock Guard for Use with Blue Ox Tow Bar
  • The Roadmaster Guardian Rock Guard # RM-4000 is designed to mount on any Roadmaster tow bar that has quick-disconnects. Since this item has not been tested with a Blue Ox tow bar I cannot guarantee compatibility. It might work but modifying it will void your warranty. I recommend using a Blue Ox product like their KarGard Towed Vehicle Protector # BX8870. This will work with most Roadmaster and Blue Ox tow bars, excluding the Roadmaster StowMaster or Blue Ox Acclaim tow bars. It is also...
    view full answer...

  • Is an Adapter Available for a Stowmaster 5000 Tow Bar to Blue Ox Base Plate on a 1997 Jeep Wrangler
  • Unfortunately, there is not an adapter available that will allow you to use the Stowmaster 5000 tow bar with a set of Blue Ox base plates. This means that you also would not be able to use the Roadmaster Guardian 2nd Vehicle Kit, # RM-4000-1, that you referenced. You have two options. First, if you want stay with your Stowmaster tow bar you could go with a set of Roadmaster base plates on your 1997 Jeep Wrangler. You would need part # RM-521424-4 if your Jeep has a double tube bumper....
    view full answer...

  • Will the Guardian Rock Guard Tow Dolly Mounting Bracket fit on a Forest River Tow Dolly
  • I spoke to my contact at Roadmaster and he informed me that as long as your tow dolly has a tongue with a diameter of 3-1/4 inches or less the RoadMaster Tow Dolly Mounting Bracket # RM-2000-8 would work for you. If you need the guard as well you would want part # RM-4000.
    view full answer...

  • Recommended Items Needed for Flat Towing a 2013 Cadillac Escalade EXT Behind a 10K Rated Motorhome
  • For flat towing your 2013 Cadillac Escalade, you will need the following items: base plate kit, tow bar, a set of safety cables, tow bar wiring, and a supplemental braking system. Please check your owners manual and see what procedures that need to be followed for flat towing your Cadillac Escalade EXT. My research indicates that your Escalade has a curb weight less than 6,000 pounds, so your motorhome is rated appropriately for flat towing this vehicle, and this is the weight rating...
    view full answer...

  • Rock Shield that Will Fit Roadmaster and Blue Ox Tow Bars
  • The Blue Ox KarGard, # BX8870, is compatible with most Blue Ox and Roadmaster tow bars (does not work with Roadmaster Stowmaster tow bars). This would be the best option for you. I have included a link to a video of this guard for you to view.
    view full answer...

  • Can the Roadmaster Stowaway Storage System Store Both a Tow Bar and The Guardian Simultaneously
  • You can use the optional # RM-222 car side quick disconnects to store both the Guardian # RM-4000 and a tow bar with quick disconnects. The Roadmaster Stowaway Storage System, item # RM-4000-40, can be locked to the motor home drawbar with an optional locking hitch pin like the Trailer Hitch Receiver Lock - Stainless Steel Flush Design for 2 inch Trailer Hitch Receiver, item # 40107.
    view full answer...

  • Will Roadmaster Guardian Tow Shield Fit With BlueOx Tow Bars on a 2011 Cadillac SRX
  • The BlueOx KarGard II # BX88255 that you referenced and the RoadMaster Guardian Rock Guard # RM-4000 are two different types of protection for your 2011 Cadillac SRX when being pulled by a motorhome. The RoadMaster Guardian was not designed to fit BlueOx tow bars. I agree that theRoadMaster Guardian Tow Shield looks better built, however, when I dove into finding out about the BlueOx KarGard II I was surprised. Towed vehicles incur damage when the motorhome kicks up debris from the...
    view full answer...

  • Fit & Comparison for RM-4700 & RM-4750 on a 2015 Jeep Wrangler Unlimited Sahara w/EZ4 and Falcon 2
  • I can help you figure out which parts you will need to protect your vehicle from rocks when flat towing. The main difference between the # RM-4700 and the # RM-4750 are where the screen mounts to the tow bar and their compatibility with certain brands of tow bars and base plate kits. For your 2015 Jeep Wrangler Unlimited Sahara, I recommend the # RM-4000 Roadmaster Guardian Rock Guard and the # RM-4700 protective screen, because it has better coverage. For your specific application...
    view full answer...

  • Roadmaster Parts Needed to Flat Tow a 2004 Ford Explorer Behind an RV
  • The Sterling tow bar # RM-576 is an excellent choice for flat towing and it is compatible with the base plates you have chosen for your 2004 Ford Explorer; # 480-1. Both the Tow Defender, # RM-4750, and the Guardian Rock Shield # RM-4000 can be used together with this set up. The bulb and socket kit # RM-155 can be used on your Explorer. But the 4-Way end that normally would be mounted at the front of the vehicle would have to be cut off and wired to the connector that comes with the...
    view full answer...

  • Adapter for Attachment of the Roadmaster Guardian Rock Guard to a StowMaster 5000 Tow Bar
  • As long as the StowMaster 5000 tow bar that you have has Quick Disconnects, Item # RM-201, then the Roadmaster Guardian Rock Guard, item # RM-4000 will work with your towbar. If you do not have the # RM-201 quick disconnects you will need them to adapt the Guardian Rock Guard to your tow bar setup. The Roadmaster Guardian 2nd Vehicle Kit, item # RM-4000-1, is designed to attach the guardian to a second vehicle with quick disconnects.
    view full answer...

  • Protective Screen Recommendation for Flat Towing 2014 Ford F-150 Using Roadmaster MX Base Plate Kit
  • I would recommend taking a look at the Roadmaster Tow Defender Protective Screening, # RM-4750. This heavy-duty nylon screen deflects rocks, gravel and road debris down and away, protecting your 2014 Ford F-150 against chips and dings. The Tow Defender Protective Screening, # RM-4750, works with all Roadmaster motorhome-mounted tow bars like your Blackhawk 2 All Terrain Tow Bar, # RM-422, and will work with the MX base plates.
    view full answer...

  • Towing a 2015 Hyundai Elantra Behind a 2018 Tiffin Allegro Using the Roadmaster RM2000-1 Tow Dolly
  • Since your 2015 Hyundai Elantra cannot be flat towed, you will need to use a tow dolly, like the Roadmaster Tow Dolly # RM-2000-1 that you referenced. This is a great tow dolly that can tow a vehicle that weighs up to 4,380 lbs so it will work great for towing your Elantra. It does come with a 4-Way flat connector already installed that activates the light functions. If you would like to utilize the brakes, which I recommend doing, then you will get a 6-Way, like part # PK11604, or...
    view full answer...

  • Will Extra Parts Be Needed To Install The Roadmaster Tow Defender Protective Screening?
  • The Roadmaster Tow Defender Protective Screening # RM-4750 will work great to keep your 2016 Ford C-Max protected from any road debris kicked up from your Motorhome. This system comes with all the hardware you need to connect the system without any extra parts needed. It fits Blue Ox tow bars with Blue Ox brackets, Demco tow bars with Demco brackets, and Roadmaster motorhome mounted tow bars. It weighs 15 lbs and rolls up to 4 inch diameter for storage. It consists of the heavy duty...
    view full answer...

  • Will the Roadmaster Guardian Rock Guard # RM-4000 Work with a 2016 Winnebago
  • The Roadmaster Guardian Rock Guard # RM-4000 fits all Roadmaster tow bars with quick disconnects # RM-201. But it is not compatible with EZ5, MS, or MX base plates. You didn't mention what vehicle was being towed or the base plates/tow bars that are on it but if they meet the above requirements you can use the Guardian. If you have a tow dolly # RM-2000-1 or # RM-2050-1 then you can use # RM-2000-8 to mount the Guardian.
    view full answer...

  • Parts Needed to Flat Tow a 2002 Ford F-150 Super Crew 4x4 Behind a Motor Home
  • First, the Roadmaster base plates # 492-1 will only fit the 2-Wheel drive versions of the 2002 Ford F-150 so it will not work with your 4-Wheel drive model. For a 4-Wheel drive model that will allow you to use the Guardian Rock Guard # RM-4000, use # 456-15. If you also need a compatible tow bar and the truck weighs under 6,000 pounds use the Falcon 2, # RM-520. If it weight between 6,000 and 10,000 pounds use the Blackhawk, # RM-422. And for 10,000 pound safety cables use # BX88197. For...
    view full answer...

  • Comparing The Roadmaster EZ4 And Roadmaster EZ5 Base Plates For 2017 Ford Edge
  • Roadmaster EZ4 Base Plate Kit - Removable Arms # RM-524444-4 is a very similar system to the EZ5 Base Plate Kit - Removable Arms # RM-524444-5 which are both a confirmed fit for 2015-2017 Ford Edge models. The difference is the EZ5 has the streamlined design that removes the need for the quick-disconnect crossbar. This baseplate will not work with the Sterling Cables, so the cables need to be attached to the frame of the vehicle. The EZ5 although much cleaner and more hidden will...
    view full answer...

  • Roadmaster Guardian Rock Guard Recommendation for a Roadmaster Flat Towing Setup
  • For your flat towing setup that consists of the # RM-501 and # 1175-1 you would want the Roadmaster Guardian Rock Guard # RM-4000 to protect your towed vehicle from rock chips while being flat towed. This product is compatible with your setup, would work great, and is easy to use. Check out the install instructions I attached for more info on how it installs and works.
    view full answer...

  • Does the Roadmaster Guardian Rock Guard # RM-4000 Blocking Air Flow Cause Problems
  • Is there a reason you would need air flow to your vehicle while it is being flat towed? The engine shouldn't be on so there would be no reason it would need air flow to the radiator. Also, on modern vehicles the radiators pull air from underneath the vehicle, so if for some reason your radiator did need air flow it would still get it since this does not block air from getting to the under side of the vehicle.
    view full answer...

  • Will the Roadmaster Guardian Work on a 1993 Ford Ranger Being Flat Towed
  • Yes, the Roadmaster Guardian part # RM-4000 that you referenced has been confirmed as a fit for all Roadmaster base plate kits except for MX and MS kits. The only base plate kits that are available for your 1993 Ford Ranger are Classic and XL kits which are both compatible with the Guardian.
    view full answer...

  • Recommended Base Plate Kit for Towing a 2003 Honda Element Behind a Super C Class C Motor Home
  • I would recommend the Roadmaster XL Base Plate Kit, item # 1541-1, for your 2003 Honda Element. The XL style base plate kits offer the versatility and provide mounting options for many of the accessories people decide are needed once getting started flat towing, like the Roadmaster Guardian Rock Guard, item # RM-4000. The Roadmaster Falcon 2 Tow Bar - 6,000 lbs, item # RM-520, is designed to work with the XL base plates and includes the quick disconnects needed to quickly and easily...
    view full answer...

  • Parts Needed to Flat Tow a 2016 Chevy Colorado with a Roadmaster Sterling Tow Bar
  • First you will need a base plate kit. Since you do not have adaptive cruise control you would wan the part # RM-523182-4 as it has been confirmed as a fit for your 2016 Chevy Colorado. This will work well with your Roadmaster Sterling part # RM-576. 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-15267, and not have to worry about cutting into the taillight housing. This will splice into...
    view full answer...

  • What Towbar and Baseplate Kit are Needed for Towing the 2011 Chevy Equinox
  • The Roadmaster EX4 Base Plate Kit - Removable Arms, item # RM-523160-4, is the correct base plate kit for your 2011 Chevrolet Equinox. The RoadMaster Sterling All Terrain Tow Bar with 6-Wire Electric Cord - 6,000 lbs, item # RM-576 that you selected would be an excellent choice for towing your vehicle if your motorhome has a 2 inch hitch mounted at the rear. With the Sterling All Terrain Tow Bar and the EZ4 base plate kit you will get the safety cables and the 6 wire wiring needed to...
    view full answer...

  • Difference Between Roadmaster EZ4 and EZ5 Base Plates for 2014 Honda CR-V
  • As you mentioned in your question, both the Roadmaster EZ4 # RM-521567-4 and EZ5 # RM-521567-5 Base Plate Kits are confirmed to fit your 2014 Honda CR-V. The primary difference between the two models is that the EZ5 does not use a quick-connect crossbar to attach to the tow bar. This will in turn provide a cleaner, less obtrusive look. The drawback, however, and why I tend to recommend the EZ4 model, is that the design will not accommodate many accessories that mount to the crossbar...
    view full answer...


Do you have a question about this Accessories and Part?




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Info for this part was:

Photos by:
Theodore B
Expert Research:
Michael L
Expert Research:
Michael H
Expert Research:
Jameson C
Video Edited:
Joshua S
Video Edited:
Jacob T
Expert Research:
John H
Expert Research:
Adam R
Updated by:
Laura H
Photos by:
Amber A
Updated by:
Sarah W
Installed by:
Andrew S
Installed by:
Brent H

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