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Mount-n-Lock SafetyStruts Standard RV Bumper Support Brackets - 4" to 4-1/2"

Mount-n-Lock SafetyStruts Standard RV Bumper Support Brackets - 4" to 4-1/2"

Item # MO22FR
Retail:$91.54
Our Price: $79.95
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Shipping Weight: 3 lbs
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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. 1-800-940-8924 to order Mount-n-Lock accessories and parts part number MO22FR or order online at etrailer.com. Free expert support on all Mount-n-Lock products. Great prices and Fastest Shipping for Mount-n-Lock SafetyStruts Standard RV Bumper Support Brackets - 4" to 4-1/2". Accessories and Parts reviews from real customers.
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  • Reviews (162)
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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

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.


Spacer bars Used-Unused

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 MO22FR Installation instructions


California residents: click here


Customer Satisfaction Score:


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   (162 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:

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!

Ron

1/19/2023

good product, keeps rear bumper in place and sturdy regardless of load placed upon it.



by:

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:

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:

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:

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:

Adds a bit of security to your travel trailer bumper. Easy to install. Works for our rig.



by:

Good to have piece of mind back there.



by:

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:

good quality product that should reinforce the bumper for my bike rack . very quick service and delivery



by:

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:

Would never have a tube bumper without them!



by:

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:

They fit well, however I would be more comfortable if the removable spacer was closer to the back square of the bumper



by:

Perfect for my use. I added a bumper hitch to the back of my trailer for my dirtbike carrier.



by:

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:

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:

Great product and fast shipping as alwa ys!



by:

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:

Help the bumper for the dog gates



by:

High quality easy to assemble, I think it's great thank you very much.



by:

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:

Very easy to install. Looks good and will see how it works. My bumper is a tube frame welder to an I beam.



by:

Perfect fit for my tv bumper.



by:

Added insurance for trailer bumper. Only use it for light weight items like camp chairs etc. yet the bouncing car carrier on bumps can greatly increase stress of the bumper



by:

On time, kept me informed, respectful of property! Thank you


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Info for this part was:

Employee Andrew K
Video by:
Andrew K
Employee Jeff D
Installed by:
Jeff D
Employee Zach D
Installed by:
Zach D
Employee Jameson C
Expert Research:
Jameson C
Employee Joshua S
Video Edited:
Joshua S
Employee Wilson B
Updated by:
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Employee Amanda M
Edited by:
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