Mount-n-Lock SafetyStruts Universal RV Bumper Support Brackets - 4" to 4-1/2"
(174 reviews)
Price: $84.95
In Stock
Mount-n-Lock SafetyStruts Universal RV Bumper Support Brackets - 4" to 4-1/2"
Item # MO34VR
Retail:$97.27
Our Price: $84.95
You Save: 13%
In Stock
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- All Info
- Reviews (174)
- Q & A (0)
- Photos
Mount-n-Lock Accessories and Parts - MO34VR
- RV Cargo Carrier
- RV Bumpers
- Bumper Parts
- Mount-n-Lock
Beef up your RV bumper and boost your weight capacity to 400 lbs to safely haul your generator and other heavy cargo. Universal design mounts to most RV frames to reinforce your bumper and prevent metal fatigue that causes your bumper to detach.
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
- Included standoff spacers are required for welded or bolted I-beam frames shorter than 6" or any size double channel frames
- 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
- Installation requires some drilling - drill bits and mounting 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.
Universal Application
The included standoff spacers give you the flexibility to mount your SafetyStruts to most RV frames, making it nearly universal. This heavy-duty extension hardware is required for welded or bolted I-beam frames less than 6" tall and any size double channel frames where flanges stick out past your mounting surface. They also combat bolted-frame designs where bolts may obstruct your mounting surface. The standoff spacers won't be necessary if you have a welded or bolted I-beam, S-beam, or single channel frame 6" or taller without flanges, or a tube frame 4" or taller.
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.
1SNUHD Mount-n-Lock SafetyStruts RV Bumper Brackets - Universal Fit - 4" to 4-1/2"
Installation Details
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
- Wrong item was ordered
- Too difficult to install
- Product did not meet expectations
Customer Reviews
Mount-n-Lock SafetyStruts Universal RV Bumper Support Brackets - 4" to 4-1/2" - MO34VR
Average Customer Rating: 4.7 out of 5 stars (174 Customer Reviews)
Beef up your RV bumper and boost your weight capacity to 400 lbs to safely haul your generator and other heavy cargo. Universal design mounts to most RV frames to reinforce your bumper and prevent metal fatigue that causes your bumper to detach.by: Nick03/20/2024
Well made, the kit includes the proper drill bits you need. Not really sure how much these add to capacity and I managed to crush the bumper a bit with a bolt on hitch and a Thule 5 bike carrier. Live and Learn !!
by: Jeremiah03/23/2024
Put theses on because I have a bumper mounted hitch to haul a cargo carrier. I think they definitely will help out in the long run
by: James 02/17/2024
JUST what I needed. It helps the bumper supporting a generator and rack that we haul with our 5th wheel.
by: Jay 08/28/2023
Purchased Item #MO34VR support struts. The kit comes with everything you need to install no matter your frame configuration, including 2 drill bits. That product did work out nicely and is a HUGE peace of mind product, totally worth the work and the price. I have a 24' Jayco Jayflight SLX with a 4" square bumper. After drilling through the frame I can assure you you'll need the struts if you're utilizing the GennyGo tray to carry a generator. Yes the bumper joints are welded solid but the metal is not nearly as thick as it may appear. Thinking "this is gonna take all day", a few seconds after starting the drill on the frame, I was through the other side. Buy the struts if you have a comparable rig. I know now why they make this product.
by: Christopher 07/22/2023
we have hauled 2 heavy ebikes on a bumper bike rack on travel trailer bumper
FL to CO
This product gives me piece of mind
It was kinda tough to drill through frame of rv but install was straight forward
by: Stephen12/23/2022
Shipped fast...very good quality...very easy to install both items...pleased with purchase...will continue to deal with etrailer
by: Greg 05/14/2023
Will see how these work long term. A bit of work drilling into the frame but I think they will hold the tray and generator without stress
by: Jeffrey 03/24/2023
Purchased my second bumper support bracket and I’m very pleased with my choice. I appreciate the product and fast delivery from E Trailer
by: Charles08/16/2022
Don't waste your time or money on this. Now my bumper welds are cracked. If you want to carry more than spare tire on rear of camper bumper install a hitch on frame.
by: Keith04/03/2023
Quality and theory of the product is great but on my application it didn't work very good. I think for most applications it probably would work as intended.
by: Heather10/05/2022
I like the product, however the kit arrived with 2 missing locking nuts that were needed to tighten the bracket to the bumper.
Brooke M.
10/21/2022
Thanks for letting us know about this. I have already sent your information to our customer service team and they will be reaching out to you soon.
by: Jeffrey03/17/2023
Just opened the bumper support bracket. Seems to be heavy duty and looks like it’s going to do what I’m looking for. Thank you E Trailer for outstanding product.
by: Dan08/08/2023
Being just only 1 yr old it has rusted an awful lot already. The paint should have been done better. Maybe better QC
by: Roger09/13/2022
I installed these because I was concerned about the stress that would placed on the trailer bumper from the spare tire rack and new Kayak verti rack. Installation was easy and since we have driven over 3000 miles across interstate 40 (alot of bad highway) and the bumper showed no signs of stress cracking at the welds. It was a simple addition that required no welding and the bolts that hold the bracket never loosened. I highly recommend this product, it gives you peace of mind and prevents your gear from snapping off down the road.
by: David03/16/2023
I have not had an opportunity to install the safety struts yet. It looks like it's doable with the parts provided.
by: Danny09/11/2023
Thank you so much for your help
by: Michael 09/17/2022
Still need to install. Like having extra support for 4” square bumper that cargo carrier attaches to.
by: Roger 06/12/2023
Good fit, easy to install product as de scribed
by: Scott02/02/2022
Not the easiest to install but it just had to do with the design of my Sunseeker, in most cases it looks a lot easier. Can’t really knock it for that, it’s job was to reinforce bumper. I put a rack with two 40 lb propane tanks on mine so I needed something I knew would not fail, lest I find myself in prison for being negligent and blood on my hands . Worked like a charm, too bad I didn’t think of earlier as it allowed me to carry ample propane for full timing in colder climates. Rock solid is the important part, they work exactly as described.
by: Hugh04/11/2022
Added the extra support we needed to our 5th wheel bumper to be able to haul our e-bikes.
by: Justin 12/16/2021
Etrailer is an awesome business. They get right on your order and keep you updated. The brackets seem to be of good quality and well packed. They literally come with everything, even drill bits. I would recommend!
by: Joe 09/24/2022
You're my go to fory rv and trailer needs thanks.
by: Kevin03/28/2023
Parts were in stockband cheaper than on Amazon.
by: Darl09/04/2021
Great product. Whom ever put together the accessories (bolt, shims, etc) put a lot of thought into it. I had everything I needed to get a good job done.
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Show More Reviews
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Do you have a question about this Accessories and Part?
Info for this part was:
Expert Research:
Mike L
Expert Research:
Jameson C
Video by:
Andrew K
Installed by:
Jeff D
Installed by:
Zach D
Video Edited:
Joshua S
Edited by:
Amanda M
Updated by:
Kristina F
Written by:
Adam Y
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David B.
9/2/2022
This is not a common thing to happen, can you elaborate on the size of the bumper and age of the unit?