Mount-n-Lock SafetyStruts Standard RV Bumper Support Brackets - 4" to 4-1/2"
(171 reviews)
Price: $79.95
In Stock
Mount-n-Lock SafetyStruts Standard RV Bumper Support Brackets - 4" to 4-1/2"
Item # MO22FR
Retail:$91.54
Our Price: $79.95
You Save: 13%
In Stock
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- All Info
- Reviews (171)
- Q & A (0)
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Mount-n-Lock Accessories and Parts - MO22FR
- RV Cargo Carrier
- RV Bumpers
- Bumper Parts
- Mount-n-Lock
Beef up your RV bumper and boost your weight capacity to 400 lbs so that you can safely haul your generator and other heavy cargo. Brackets mount to 6" or taller I-beams and S-beams and 4" or taller tube frames to reinforce your bumper.
Features:
- SafetyStruts reinforce your RV bumper so that you can carry generators and other heavy cargo
- Increases weight capacity to 400 lbs
- Helps prevent bumper detachment from your RV's frame
- Brackets mount to welded or bolted I-beam, S-beam, and single channel frames 6" or taller, and tube frames 4" or taller
- Optional spacer bars can be removed to fit around larger bumpers up to 4-1/2" wide
- Gives you more space on your frame for proper mounting
- Power-coated, galvanized steel construction resists rust and corrosion
- Easy, self-drilling installation - nut driver and hardware included
- Made in the USA
Specs:
- Application: 4" to 4-1/2" RV bumpers
- Overall dimensions: 7-1/2" wide x 5" tall x 5/16" thick
- Weight capacity: 400 lbs when evenly distributed
- Quantity: 2 brackets
- Limited lifetime warranty
Note: Bumper weight capacities vary by manufacturer. Please be sure to verify the weight capacity of your bumper with the manufacturer prior to loading.
Spacer Bars
These all-steel brackets also have optional spacer bars that are in place to allow a nice, snug fit around your standard 4" RV bumper. They can be removed so that the brackets fit around larger bumpers between 4-5/16" and 4-1/2" wide, or if your bumper is bolted to the frame and the bolts interfere with the spacer bar.
If your RV's frame has less than 3" of mounting space, the spacer bars are the perfect solution to create that extra space to properly mount your SafetyStruts. Simply remove the spacer bar, flip it around, re-locate it to the outer part of your bumper, and secure in place with the included nuts and bolts.
1SSNHD Mount-n-Lock SafetyStruts RV Bumper Brackets - Standard Fit - 4" to 4-1/2"
Installation Details
California residents: click here
Customer Satisfaction Score:
93% were satisfied with this product
7% of customers were not satisfied
- Wrong item was ordered
- Product did not meet expectations
- etrailer mistake
Customer Reviews
Mount-n-Lock SafetyStruts Standard RV Bumper Support Brackets - 4" to 4-1/2" - MO22FR
Average Customer Rating: 4.7 out of 5 stars (171 Customer Reviews)
Beef up your RV bumper and boost your weight capacity to 400 lbs so that you can safely haul your generator and other heavy cargo. Brackets mount to 6" or taller I-beams and S-beams and 4" or taller tube frames to reinforce your bumper.by: Jeremy03/22/2024
They are exactly what I needed on my coleman lantern camper. I have no doubts on what I can haul now, easy install, easily the strongest option. Don't do the other hacks, just get these and be done, be happy!
by: Ron01/17/2022
Relatively easy to install, after trimming a bit of the I beam out of the way. Flush fit with self drilling screws (drill pilot hole first) should be very secure. Before and after pix for reference. Ready to load cargo tray and camp!
by: James 01/26/2023
Product was easy to install and performs exactly as intended. Don't have to worry about hitting a pothole and a vehicle behind my camper running over my 10,000 watt generator lol.
James
2/7/2024
I have put around 10,000 miles with heavy gen in rack on bumper and not one problem!
by: Blaine 08/22/2022
They were easy to install and gave us confidence of having a little extra weight capacity on our rear bumper. We carry 2 electric bikes on the back. Great job !!
Blaine
Blaine
8/23/2023
The product did exactly what I was looking for. It has held up well. Installation directions were spot on. I often recommend to other rv users o buy these and get that extra bumper security.
by: Bill01/23/2023
The brackets worked well.
The only issue was the kit contained a 3/8 nut driver but none of the bolts were 3/8!! They were 7/16… lol! Good thing I had my own tools…
by: James91910/02/2023
Took some work to install. Had to pre-drill for self-drilling bolts because of extra thick tubular frame. Once installed, easily supports 200lbs of RV/ebike rack and two ebikes, even on rough roads
by: Cliff 04/12/2024
We did not know that they came with the other item so we ended up with 2 of them
by: Brown09/17/2023
Adds a bit of security to your travel trailer bumper. Easy to install. Works for our rig.
by: Donald 04/24/2024
Great product!
by: Eric 02/18/2024
Good to have piece of mind back there.
by: Jeffrey 07/13/2023
Easy to install I had to drill a small hole then use hardware sent have hauled a basket on camper with pellet grill and other stuff
by: Ken 05/05/2023
good quality product that should reinforce the bumper for my bike rack . very quick service and delivery
by: Charles 06/08/2023
Added to my Imagine XLS 23 LDE so I could add a rack and put small generator inverter on rack, install was easy enough and product is very well made.
by: Richard 07/21/2023
Would never have a tube bumper without them!
by: Doug03/27/2023
Mounted a second spare. The supports gave me confidence that the bumper has the ability to carry the extra weight. Instructions were easy to follow.
by: Kenneth06/04/2021
They fit well, however I would be more comfortable if the removable spacer was closer to the back square of the bumper
by: Leon 11/20/2022
Perfect for my use. I added a bumper hitch to the back of my trailer for my dirtbike carrier.
by: Russell 08/18/2022
Bought this for added support on my trailer bumpe. Installed spair tire carrier and bike rack. Have gone 4000 + miles so far and had n issues
by: Brent 10/05/2022
They were easy to install. The system appears to work. In addition to the spare tire and bicycle rack, I added a generator box. Everything is holding so far.
by: Ricci Favors10/02/2020
etrailer delivery was fast and I was kept informed throughout the shipment process. I will tell you that Customer Service was excellent in doing a price match for me against a competing site that carried the same product.
Here's what you need to know about the install. Forget the self tapping screws and use a 3/4" high speed drill bit. Make sure to keep the bit oiled during drilling. Also you will need a minimum of 1 clamp to hold the brace in place.
I would have rated the product a 5 star, but on my rig there is a L-brace also welded to the bumper. The washers included that are supposed to be shims are not thick enough to fit the bracket firmly against the frame. I had to use some additional washers I already had.
But I have no doubt this will hold the extra spare tire I have added to my travel trailer.
by: Thomas 05/23/2023
I placed two on each frame tube and bolted them through, I didn’t like the idea of the threaded holes in a tube!!
by: Dario04/11/2021
Very easy to install. Looks good and will see how it works. My bumper is a tube frame welder to an I beam.
by: JOHN FROST06/28/2022
High quality easy to assemble, I think it's great thank you very much.
by: Wayne 08/12/2023
Help the bumper for the dog gates
by: Michael 03/24/2023
Great product and fast shipping as alwa ys!
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See what our Experts say about this Mount-n-Lock Accessories and Parts
- Can Mount n Lock SafetyStruts Fit 2021 Winnebago Micro Minnie FBS Comfort ExplorerSince it looks like you have C-channel on your 2021 Winnebago Micro Minnie FBS Comfort Explorer you'd have to find a welder to box the frame so that you can then install the Mount-n-Lock SafetyStruts # MO22FR that you referenced but it can fit.
view full answer...
- Mount-n-Lock SafetyStruts Standard RV Bumper Support Brackets Dimensions and Capacity The Mount-n-Lock SafetyStruts Standard RV Bumper Support Brackets item # MO22FR you were looking at will mount to an I-Beam that is 6" or taller. They don't go off of width. These safetyStruts reinforce your RV bumper so that you can carry generators and other heavy cargo. These will beef up your RV bumper and boost your weight capacity to 400 lbs. If this doesn't work for your trailer go ahead and message me back with some more specific measurements and I will try to find something that...
view full answer... - What Is The Weight Capacity Of The Mount-n-Lock SafetyStruts RV Support Brackets?Yes that's correct! As long as the load is evenly distributed the Mount-n-Lock SafetyStruts Standard RV Bumper Support Brackets # MO22FR will accommodate up to 400lbs, and will fit bumpers that are 4" to 4-1/2". Additionally, bumper weight capacities will vary from manufacturer to manufacturer. To ensure you're being safe and not overloading your bumper, please be sure to verify the weight capacity of your bumper with the manufacturer prior to loading.
view full answer... - Can The Mount-N-Lock SafetyStruts Standard RV Bumper Support Brackets Work On A 2-1/2 Bumper?The Mount-n-Lock SafetyStruts Standard RV Bumper Support Brackets # MO22FR is meant to fit on bumpers at least 4" wide, but with use of the included spacer, can fit bumpers 4-1/2" wide, meaning, it is not able to work with your 2-1/2" wide bumper.
view full answer... - Mount-n-Lock SafetyStruts Compatibility For a 2021 Forest River Vibe 25RKYes, the Mount-n-Lock SafetyStruts # MO22FR will fit the rear bumper on your 2021 Forest River Vibe 25RK.
view full answer... - Recommended Mount-N-Lock Safety Struts For A 2104 Keystone Montana Fifth Wheel. For your 2014 Keystone Montana High Country Fifth Wheel you can use the Mount-n-Lock SafetyStruts # MO22FR. These technically are not custom fit, and can be used on virtually any 4" square or 4-1/2' square bumper and can be bolted or welded directly to the I-beam or S-beam.
view full answer... - Could Mount N Lock Safety Struts # MO22FR be Used to Support HitchI would say it's definitely possible to use the Mount-n-Lock SafetyStruts Standard RV Bumper Support Brackets # MO22FR as support brackets for a hitch for a bike rack since they are rated for 400 lbs but I don't have a way to recommend how you would do that. If you are okay with a decent amount of fabrication I am sure there is a way to make this work.
view full answer... - Will Mount N Lock SafetyStruts Work on Coachmen 265RBSSHey George, yes the Mount-n-Lock SafetyStruts Standard RV Bumper Support Brackets # MO22FR would definitely work to beef up the rear bumper of your Coachman to allow it to carry your bikes and rack.
view full answer... - Can Mount N Lock SafetStruts Install on 2023 Grand Design Transcend 247BHThat's a really good question but the best way to know if the bumper of your 2023 Grand Design Transcend 247BH would require reinforcing would be to check with Grand Design to determine if the bumper has a weight capacity for towing or if it's even rated for towing or not. If it's rated for towing it would be fine but if not you'd want to run the install of the Mount N Lock SafetyStruts # MO22FR by them and see what they think.
view full answer... - Can Mount-n-Lock SafetyStruts Standard RV Bumper Support Brackets Attach to Tube FrameThe Mount N Lock Safety Struts part # MO22FR can only fit tube frames if they are 4 inches or larger. If yours is 3 inch it would not work.
view full answer... - How Thick Is The Mount-N-Lock SafteyStruts Standard RV Bumper BracketsThe Mount-n-Lock SafteyStruts Standard RV Bumper Support Brackets # MO22FR is 5/16" thick. This product is also capable of withstanding up to 400-lbs when evenly distributed.
view full answer... - Self-Tapping Screw Size Included With The Mount-n-Lock SafetyStruts RV Bumper Support BracketsThe self-tapping bolts included with the Mount-n-Lock SafetyStruts Standard RV Bumper Support Brackets # MO22FR are 5/16”-18 x 1-1/4" with a 7/16” head.
view full answer... - Can Two Sets of Mount-n-Lock SafetyStruts Standard RV Bumper Support Brackets Be Used on Same BumperIt's possible to use two sets of the Mount-n-Lock SafetyStruts Standard RV Bumper Support Brackets part # MO22FR but you might need to alter the hardware or instructions slightly. That said, it's not needed nor would it produce a higher capacity as the manufacturer does not test nor have they with two plates per side. If it gives you more peace of mind however then I say go for it. Thankfully, the owner of Mount-n-Lock is very cool when it comes to stuff like this and he even said himself...
view full answer... - Recommended Mount-n-Lock SafetyStruts For A 2022 Grand Design 337 RLSFor a 2022 Grand Design 337 RLS we recommend the Mount-n-Lock SafetyStruts Universal RV Bumper Support Brackets # MO34VR. We do not know the exact size of the frame on your camper, but the universal kit will fit virtually any I-beam, S-beam or channel frame. So provided the bumper is 4" or 4-1/2" you should be good to go. While knowing exact dimensions of the frame is always nice, they do call it the universal kit for a reason.
view full answer... - Can Mount-n-Lock SafetyStruts Be Mounted On The Inside Of The Bumper Frame BeamYes, both the Mount-n-Lock SafetyStruts Standard RV Bumper Support Brackets - 4" to 4-1/2" # MO22FR and Universal # MO34VR can be mounted on either the inside of outside of the frame beams. It's typically easier to mount to the outside since you wouldn't have to get under the trailer, but if you're wanting more of a hidden look it's totally acceptable to mount it on the inside.
view full answer... - Availability Mount n Lock SafetyStruts for RV BumperYes we do have the Mount n Lock SafetyStruts part # MO22FR for standard RV bumpers or the part # MO34VR for a universal setup.
view full answer... - Bumper-Mounted Reinforcement Support Brackets For RV BumpersThe Mount-n-Lock SafetyStruts Standard RV Bumper Support Brackets - 4" to 4-1/2" # MO22FR and Mount-n-Lock SafetyStruts Universal RV Bumper Support Brackets - 4" to 4-1/2" # MO34VR. Use # MO22FR for standard bumpers and use # MO34VR for universal bumpers such as I-beams. These support brackets will increase your bumper's weight capacity to 400lbs.
view full answer... - What is The Difference Between The Mount-n-Lock SafetyStruts Universal MO34VR & Standard MO22FR Kit?The Mount-n-Lock SafetyStruts Universal Kit # MO34VR includes the Standoff Spacers # MO54VR along with drill bits and the components found in the Standard Kit # MO22FR. The standoff spacers allow for mounting on I-beams shorter than 6".
view full answer... - Are the Safety Struts for the etrailer Cargo Carrier IncludedYes, I can confirm that the 24x40 etrailer Cargo Carrier for RV Bumper # e99050 does include the bumper safety struts # MO22FR you're referencing.
view full answer... - Recommended Trailer Hitch for a Forest River Cherokee 284DBHThe Curt RV Bumper 2" Trailer Hitch Receiver, # E-100 is designed to fit standard 4" x 4" rear bumpers providing ability to tow a trailer up to 3,500 lbs. However, just because this component is rated for that does not mean the bumper on your RV is; you will need to confirm with manufacturer for spec on your Forest River Cherokee 284DBH. In addition, you will need to check legality of towing a bumper pull trailer behind a bumper pull trailer. Pulling a trailer behind a 5th wheel is frequently...
view full answer... - Recommendation For Increasing Strength of Rear Bumper Attached to Spacers Off Of Trailer FrameI do say those welds are bad and it appears the bumper is simply welded onto the back plate of the trailer rather than the frame. I recommend removing the entire bumper for the Mount-n-Lock Heavy-Haul'r Replacement RV Bumper # MNT43VR which you will then be able to add the Extensions # MO24VR. This will allow you to reach your frame and have bolts into the thicker frame material. The Mount-n-Lock SafetyStruts # MO22FR you found will help with the bumper attachment to the spacers the manufacturer...
view full answer...
- Does The etrailer RV Bumper Cargo Carrier Come With The Universal Safety Strut Kit The 24x64 etrailer Cargo Carrier for RV Bumper # e83YR is going to come with the Standard Supports # MO22FR. If you have an I-Beam frame that you'll be attaching to then you'll want the Universal Kit # MO34VR instead.
view full answer... - Can You Use The Mount-N-Lock SafteyStruts To Be Able To Carry A 50cc Honda Metropolitan Scooter?Yes, you should have no problem carrying your 50cc Honda Metropolitan Scooter. The Mount-n-Lock SafetyStruts Standard RV Bumper Support Brackets # MO22FR is designed to reinforce your trailer's bumper weight capacity to 400-lbs, which is more than enough to carry your scooter. If you're looking for a scooter carrier, the Ultra-Fab Dirt Bike Carrier for 2" Hitches # UF48-979033 is a great option, can support up to 500-lbs, and will fit into 2" x 2" trailer hitch receivers. That being...
view full answer... - What Parts Come with 24x64 etrailer Cargo Carrier for RV BumperHere are parts lists for both of the kits that come in the 24x64 etrailer Cargo Carrier for RV Bumper # e83YR (see attached photos). The Mount-n-Lock SafetyStruts # MO22FR do come with our cargo carrier.
view full answer...
Do you have a question about this Accessories and Part?
Info for this part was:
Video by:
Andrew K
Installed by:
Jeff D
Installed by:
Zach D
Expert Research:
Jameson C
Video Edited:
Joshua S
Updated by:
Wilson B
Edited by:
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Written by:
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Ron
1/19/2023
good product, keeps rear bumper in place and sturdy regardless of load placed upon it.