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Roadmaster Guardian Rock Guard

Roadmaster Guardian Rock Guard

Item # RM-4000
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Roadmaster Rock Guard Accessories and Parts - RM-4000
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In Use/Installed

Customer Photos

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.
  • All Info
  • Reviews (22)
  • Q & A (94)
  • Videos (3)
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Roadmaster Accessories and Parts - RM-4000

  • Tow Bars
  • Vehicle Guards
  • Roadmaster
  • Rock Guard
  • 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.


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
  • Limited Lifetime Warranty


Close Up of Attachment



Installation Steps



4000 Roadmaster Guardian Rock Guard

Installation Details RM-4000 Installation instructions



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 Review

Speaker 1: Today we're going to be taking a look at the Roadmaster Guardian Rock Guard, part number RM-4000. When we go to flat tow a vehicle, we have a lot of issues with road debris flying up and hitting the front of our vehicle. Whether it be rocks or gravel or anything else, we don't want the paint to be scratched, let alone a headlight broken. Our Guardian's going to protect the front of our vehicle and make sure the paint stays in nice condition, as well as the headlights. Our Guardian's going to be made out of a molded polyethylene material with a hollow core, so it's going to be extremely durable but also very lightweight.Now our Guardian is going to be compatible with all Roadmaster base plates that have the quick disconnect style crossbar, which is sold separately. This center section of our Guardian is going to be attached directly to the base plate on a bracket, and the two side panels are going to have a connecting rod that's going to connect those to the center.

Now, because of its design, we're going to be able to remove in a manner of seconds and actually fold the sides in for a smaller footprint so we can store it.One of the nice things about our Guardian is that it does remove extremely easily and is easy to store. We can simply just pull those pins out, loosen up those thumb screws and we can pull the whole assembly off and set it aside. And that will finish up your look at the Roadmaster Guardian Rock Guard, part number RM-4000.


Customer Reviews

Roadmaster Guardian Rock Guard - RM-4000

Average Customer Rating:  4.9 out of 5 stars   (22 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:

I received the RM-400 on time, watched the installation video and installed it. I haven't used it yet but I'm confident it will do the job keeping the front end of our car protected while towing behind the motorhome. However, the box didn't have the thumb screws. 696325



- RM-4000
by:

Love your product ,it does the job 578153



- RM-4000
by:

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:

Simple design, easy to use. Perfect fit for my towed vehicle. No longer have stones sitting on the windshield after a trip. 549037



- RM-4000
by:

Hi George, all the products that I purchased from you guys arrived in a timely manner and installed on my 2017 Jeep. Good instructions and good products. I sent you a picture of my install. 464681



- RM-4000
by:

Once you install the guardian carrier installing the Guardian is a breeze. The important step in the installation of the carrier and the guardian is driving your car onto the dolly to make adjustments to the carrier and guardian reference your vehicle. After you get it all together lt looks good and works. I'd buy it again. 691609



- RM-4000
by:

Easy to install (sursprisungly so). A high quality product that looks like it will do a great job protecting our towed car 514584



- RM-4000
by:

Met expectations 508934



- RM-4000
by:

Received a day earlier than expected. Janice took my order and walked me thru the process on how it attached it. She was right on. Looks good on my 2007 Ford Ranger. Took about a half hour to mount. Every time I order from etrailer. It's always the right part I needed. 503125



- RM-4000
by:

Great product, great price,fast shipping and easy to install..... I also went with the RM# 4750 for the extra protection...... Thanks to Sandy J. for all the help....you're so very helpful...... Adrien A 460951



- RM-4000
by:

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:

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


Comments
Really good. thank you!!
Joe b - 01/28/2018

33868

- RM-4000
by:

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:

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:

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:

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:

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



- RM-4000
by:

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:

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:

Quality product. Excellant service. 127744



- RM-4000
by:

Delivered on time and as promised 100201



- RM-4000
by:

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


22
22

Ask the Experts about this Roadmaster Accessories and Parts

  • Will Roadmaster Guardian Rock Guard Cause Overheating
    There is not an issue with overheating with the Roadmaster Guardian Rock Guard # RM-4000; the only caveat is that some owner's manuals do state not to use a vertical towing shield so you will need to check the manual of your '19 Colorado. If you cannot use a vertical shield then you can use the Roadmaster Tow Defender Protective Screening # RM-4700 for a horizontal shield. Either way, the transmission should not be creating heat when you are flat towing so there will not be an issue with...
    view full answer...
  • Can the Towed Vehicle Rock Guards Be Modified
    I do have a number of different options to help protect your toad from rock chips while in tow but none of them are designed to be cut of modified to an exact size and they are all designed for specific tow bar/base plate applications. For example, if you have a Roadmaster Direct-Connect Base Plate Kit then you can use the Roadmaster Guardian Rock Guard part # RM-4000 which measures 26" tall x 71" wide. If you have a Blue Ox Tow Bar you can use the Blue Ox KarGard Towed Vehicle Protector...
    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...
  • 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 Blue Ox tow bars, excluding the Acclaim. It is also not compatible with the Blue Ox AutoStop braking systems....
    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...
  • Availability of Front End Vehicle Protector for Vehicle Flat Towed with Blue Ox Tow Bar
    The Kar Gard II you mentioned has been discontinued for a couple years now but we do have the original Kargard part # BX8870 still available. This is a hard shield for the front of the vehicle instead of the fabric style of the II which isn't around anymore. I attached a review video for this for you to check out as well.
    view full answer...
  • Protective Guards and Screens for Towed Jeep Wrangler Unlimited
    If you are looking for a protective screen or guard for a vehicle being flat towed behind a motorhome we do have such products. Both types of products are displays on the two linked pages. These include products like the Roadmaster Guardian # RM-4000 and their Tow Defender screen # RM-4750. If you are looking specifically for a windshield cover we offer several that are displayed on the other linked page. These not really intended for use while towing.
    view full answer...
  • What are the Dimensions of the Roadmaster Guardian Rock Guard # RM-4000
    The middle section of the Guardian Rock Guard is 37-1/2 inches wide and 26-7/8 inches tall. The two side panels are smaller at the top than they are on the bottom. The top, in width, is 15-1/2 inches but at the bottom is 18-1/8 inches. They are both 26-7/8 inches high as well. When open, the guard will measure 68-1/2 inches wide at the top, 73-3/4 inches wide at the bottom, and will be 26-7/8 inches tall. When the guard is folded up it is 37-1/2 inches wide and still stays 26-1/2 inches...
    view full answer...
  • 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...
  • 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...
  • 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 Roadmaster Rock Guard Work when Used with Motorhome
    Even with the rear axle of your motorhome being a decent distance from the rear of it there will still be rocks and other debris that will fly up from the wheels and potentially hit your vehicle. The Rock Guard part # RM-4000 will definitely help. Dually wheels like what your RV are known for throwing rocks a large distance. I have gotten rock chips on my car from semi-trucks that were a great distance in front of me.
    view full answer...
  • Rock Guard Recommendation for a 2010 Chevy HHR Being Flat Towed
    Priority one would be to keep the tow bar level. Otherwise you will wear out suspension and tires. As long as your Roadmaster base plate aren't MX or MS (they won't be), the correct Roadmaster Guardian Rock Guard would be the part # RM-4000 which will protect the front of your 2010 Chevy HHR.
    view full answer...
  • Vehicle Protector/Rock Guard for Falcon Tow Bar and EZ5 Base Plates
    For the Roadmaster Falcon tow bars such as # RM-520 and the EZ5 base plates # RM-521448-5 the only vehicle guard that will work is the Roadmaster Tow Defender Protective Screening # RM-4750. I have included a link to a video featuring the Tow Defender for you.
    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...
  • Recommended Tow Vehicle Protection For Tiffin Motorhome Pulling 2009 Jeep Wrangler Unlimited
    For your Demco Excali-Bar III Non-Binding Tow Bar # DM9511013, I recommend the Rock Tamers Heavy-Duty, Adjustable Mud Flap System for 2" Hitches - Matte Black # ERT00108 or the Access Rockstar 3XL Custom Mud Flaps w/Heat Shield for Modified Suspensions - 47" W - Smooth Finish # A10200213 for even more coverage. Then you can use the Roadmaster Tow Defender Protective Screening # RM-4750 which is compatible with the Demco base plates and tow bar. For a windshield cover, I recommend...
    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...
  • 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...
  • Protective Cover For Towed Vehicle When Being Flat Towed Behind Motor Home
    I believe you are asking about the Roadmaster Guardian Rock Guard part # RM-4000 that protects the towed vehicle from rocks and other flying debris when being towed behind the motor home. It fits all Roadmaster tow bars with quick disconnects. There is also the Roadmaster Tow Defender Protective Screening part # RM-4700 that deflects rocks and other road debris from damaging the towed vehicle. It also connects with Roadmaster tow bars with quick disconnects as well. They are frequently...
    view full answer...
  • Will the Roadmaster Guardian Rock Guard # RM-4000 Fit a Falcon 5250 Tow Bar on 2015 Ford Explorer
    The Roadmaster Guardian Rock Guard # RM-4000 fits all Roadmaster tow bars with quick disconnects. Also it will NOT work on a vehicle that has MX or MS style base plates. The Falcon 5250 did use quick disconnects so they will work together as long as your 2015 Ford Explorer is not using the MX or MS base plates. For the 2015 Ford Explorer Roadmaster has 2 base plate options. There is an MX series which is # 4427-3A. The Guardian will not work with these base plates. There is also an XL...
    view full answer...
  • Can Roadmaster Rock Guardian and Tow Defender Screen # RM-4700 be Used at Same Time
    The Roadmaster Tow Defender Protective Screening # RM-4700 and the Roadmaster Guardian Rock Guard # RM-4000 that you referenced can fit together. The screen can easily store on the tow bar when not in use but the Rock Guard needs to be removed from the tow bar when not in use. It does fold up for easy storage though.
    view full answer...
  • Rock Guard Recommendation for Roadmaster Tow Dolly
    To use the Roadmaster Rock Guard part # RM-4000 on a Roadmaster Tow Dolly like the part # RM-2000-1 you'd need to use the adapter part # RM-2000-8 and you'd be set.
    view full answer...
  • Vehicle Protector for a 2012 Jeep Wrangler Towed Behind an RV with Blue Ox Base Plates and Tow Bar
    The Roadmaster Guardian Rock Guard # RM-4000 does not work with the Blue Ox base plates and tow bar but you can use the Blue Ox KarGard # BX8870 as long as you are not using the Acclaim tow bar or a Blue Ox AutoStop braking system. It sounds like debris is getting kicked up from the sides of the rear wheels as much as it is from behind them. The only way to really reduce that would be fender skirts to partially block the sides of the tires but those would likely have to be custom made. There...
    view full answer...
  • Will Roadmaster Guardian Rock Guard Restrict Airflow on GMC Acadia
    Since your owner's manual states not to use a vehicle mounted guard when it's being flat towed I have to recommend adhering to this advice. While most likely you would be fine, if anything were to go wrong because of the restricted airflow it would not be covered under the vehicle's warranty. With this in mind I strongly recommend the Roadmaster Tow Defender # RM-4750 instead, which will attach to the base plates and tow bar on your setup to keep gravel and debris down and away from...
    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...
  • Availability of Way to Protect Front End of Vehicle When Flat Towing
    If you have a Roadmaster tow bar we have the Guardian Rock Guard part # RM-4000 which is designed to protect the front end of a vehicle while it is being flat towed like what you are doing. If you have a different tow bar let me know and I'll recommend the best solution for it if available.
    view full answer...
  • Recommendation for Protecting Vehicle While Being Towed Behind Motorhome
    We do have a few great options for protecting your vehicle from road debris when being towed behind your motorhome. If you have a Roadmaster tow bar with quick disconnects, I recommend looking at the Roadmaster Guardian Rock Guard # RM-4000. This is a durable guard that will protect your vehicle with its high-impact polyethylene. The center panel will attach to the tow bar mounting bracket and the connecting rods attach to the two side panels. It is also easily removable when not in...
    view full answer...
  • Which Vehicle Protector To Use with Roadmaster Falcon Tow Bar
    The Roadmaster Guardian Rock Guard # RM-4000 would be the one to use with a Roadmaster Falcon # RM-520 as it is designed for use with Roadmaster tow bars that have quick disconnects. The Blue Ox Kargard is designed for use with Blue Ox tow bars so it would not be what you need.
    view full answer...
  • Roadmaster Guardian Rock Guard RM-4000 Recommendation
    The Roadmaster Guardian Rock Guard # RM-4000 is a great choice for a way to protect the front end of your vehicle as it is being flat towed. This one may not be as tall as the one you currently have but due to how close the towed vehicle is to the tow vehicle the taller guard would not be necessary. The rocks that would end up thrown from your tow vehicle wouldn't end up high enough to clear this guard. It will work well for you. If you check out the reviews of this product you will...
    view full answer...

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Info for this part was:

Expert Research:
Mike L
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
John H
Expert Research:
Adam R
Video Edited:
Joshua S
Video Edited:
Jacob T
Video by:
Kathleen M
Updated by:
Laura H
Updated by:
Sarah W
Updated by:
Hannah L
Updated by:
Isabelle B
Installed by:
Andrew S
Installed by:
Brent H
Test Fit:
Robert C

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