bing tracking image
  1. Accessories and Parts
  2. Mount-n-Lock
  3. RV Cargo Carrier
  4. RV Bumpers
  5. Bumper Parts
Mount-n-Lock Heavy-Haul'r Standard Duty Replacement RV Bumper - 5.3" - 600 lbs - Brushed
Mount-n-Lock

Mount-n-Lock Heavy-Haul'r Standard Duty Replacement RV Bumper - 5.3" - 600 lbs - Brushed

Part Number: MNT33VR
In Stock
$589.49
Retail:$674.97
You Save: $85.48
Accessories and Parts
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.
By submitting this form, you understand and agree to our Terms of Sale, Website Terms of Use and Privacy Policy.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Need help with installation?
Locate installers near me
Wish your stock RV bumper could support more gear? We do too! That's why we love that this aluminum bumper increases your weight rating so you can throw a few extra bags onto the back of your RV for your long weekend trip to the campground. 1-800-940-8924 to order Mount-n-Lock accessories and parts part number MNT33VR or order online at etrailer.com. Free expert support on all Mount-n-Lock products. Great prices and Fastest Shipping for Mount-n-Lock Heavy-Haul'r Standard Duty Replacement RV Bumper - 5.3" - 600 lbs - Brushed. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (38)
  • Q & A (0)
  • Videos (1)
  • Photos

Mount-n-Lock Accessories and Parts - MNT33VR

  • RV Cargo Carrier
  • RV Bumpers
  • Bumper Parts
  • Mount-n-Lock

Wish your stock RV bumper could support more gear? We do too! That's why we love that this aluminum bumper increases your weight rating so you can throw a few extra bags onto the back of your RV for your long weekend trip to the campground.


Features:

  • Standard-duty RV bumper kit increases your weight rating for highway driving
    • Great for cargo carriers, bike racks, and other bumper-mounted accessories
    • Less likely to lead to bumper detachment than a stock bumper with the same weight
  • Roomy, hollow compartment stores your wet, smelly sewer hoses and fittings
    • Vented end plates circulate fresh air to prevent moisture and mold build-up
  • Rustproof, lightweight aluminum has a silver brushed finish
  • Bolt-on installation onto your RV's frame with included 10 brackets and hardware
    • Some drilling required - does not need any welding or painting
  • Optional accessories (sold separately) make it easier to install and use the bumper
    • AddaBumper plates help the bumper clear frame obstructions during installation
    • SafetyStruts brackets increase the weight capacity for hauling more gear
    • Adapter brackets let you mount different sized accessories like a cargo carrier or bike rack
  • Made in the USA


Specs:

  • Application: I-beam, S-beam, tube, and channel frames
    • Flanged frames: must be at least 4" tall x 3" long
    • Non-flanged frames: must be at least 3" tall x 3" long
  • Overall bumper dimensions: 92" long x 5-5/16" wide x 5-5/16" tall
  • Maximum capacity: 600 lbs when evenly distributed
  • Weight: 40 lbs
  • Limited lifetime warranty


Worried that your existing steel RV bumper won't be able to support the weight of an extra, larger cooler? Well, you're in luck! This brushed-finished aluminum bumper is stronger than your stock bumper, and it boasts a higher weight rating so you can haul a couple of heavier bags to the campsite. 10 Standard-duty brackets reinforce the bumper, giving you peace of mind that your gear won't detach from your RV on the highway.


Stores Your Sewer Hoses and Fittings


Mount-n-Lock Replacement RV Bumper Ventilated Compartment

If you don't want to muck up the inside of your RV's cargo compartment, you can use the ventilated storage area inside the bumper to hide your smelly sewer hoses and fittings. The end plates on either side have small, built-in holes that help circulate fresh air to help prevent moisture and mold from building up on your wet hoses. And by keeping your sewer gear in the bumper, you'll free up space in your RV storage compartment for additional camping gear. When it's time to dump your black and gray tanks, slide the end plate up to easily grab your hoses.



10MBK92BF Mount and Lock Heavy Hauler Standard Duty RV Rear Bumper Replacement Kit - 600 lbs - Brushed Aluminum





Video of Mount-n-Lock Heavy-Haul'r Standard Duty Replacement RV Bumper - 5.3" - 600 lbs - Brushed
Video Thumbnail Video Player Dialog

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




Video Transcript for The Low-Down on the Mount-n-Lock Heavy-Haul'r Replacement RV Bumper

Hello everybody, this is Jeff at etrailer.com. Today we're gonna take a look at this Mount-n-Lock Heavy-Haul'r 92 inch long aluminum RV replacement bumper with a brushed finish. It has a 600 pound weight capacity. Now this complete bumper kit here will let you add a bumper or replace your stock RV bumper for extra durability and a higher weight rating. This is a nice heavy duty aluminum bumper. Gives you a higher weight rating so that you can safely haul your bikes or generator to the campsite.

It's also great for supporting any cargo carriers or other bumper mounted accessories. You can see we've pre-installed the mounting brackets on this. They do include 10 heavy duty brackets, five on each side, you can see right here. And this will reinforce the bumper to prevent heavy loads from damaging it. On the zoom in, you can see on this side there's the five mounting brackets.

It's less likely to lead to a bumper detachment than a stock bumper with the same weight. Now also, if you wanted to add a two-inch hitch to this bumper, we do sell a separate part number. It's MNT37FR. We listed it on this product page as a related product and basically I wanna pop up an insert, here you can see what that part looks like. But it is a two-inch hitch that'll clamp around the bumper and allow you to put anything that'll go into a two-inch hitch receiver on here.

Now the other nice feature on this bumper, it is hollow. It is a hollow compartment, and you can see on the end these vented end plates and allow you to store your wet smelly sewer hoses and fittings inside there. So if you just open this plate like that, you can put your hoses and fittings right in there. And we mentioned that they're vented. So what's nice about that, it allows fresh air to circulate, prevent moisture and mold buildup, and again just to access it and just slide the plate up or down.

Now this is a rustproof lightweight aluminum construction. This one has a nice brushed finish to it. The brushed finish will be nice and shiny and it'll hide any scratches but it does hold onto some dirt since it is a rough surface. They do also offer this bumper in a raw mill finish that will show scratches and discolorations. And we do also sell the same hitch or the same bumper in a glossy black powder coat mirror-like finish. And again, those are usually listed on the product page as a related product. Now this is a bolt-on installation. It'll bolt onto your RV's frame. Comes with the included hardware here. There is some drilling required. Comes with a nice set of instructions. Couple things I do wanna mention that if your RV frame is shorter than your RV's body, we do sell extension plates that'll help you install it. They're part number MO24VR. They are sold separately. Also, if your RV's body extends to the bottom of your frame, you might need the drop plates. That's part number MO84VR. And again, they're sold separately. Now this part is made in the USA. Specs the application this will fit I beam, S beam, tube and channel frames. Now if it's flange frames they must be at least four inches tall, three inches long. If they're non flange frames, they must be at least three inches tall by three inches long. Now we need mention the overall length on this bumper from this end all the way to that end. It's 92 inches long, and the width of it, it is a square so it is five and 5/16 inches wide, five and 5/16 inches tall. Maximum capacity, again is 600 pounds when it's evenly distributed on it. And the total weight of this bumper is about 40 pounds. But that should do it for the review on this Mount-n-Lock Heavy-Haul'r 92 inch long aluminum RV replacement bumper with the brushed finish.

Ratings & Reviews

4.5

38 reviews
5 Stars
(27)
4 Stars
(8)
3 Stars
(1)
2 Stars
(0)
1 Star
(2)
Review Sort Icon
by:
Exactly as advertised. Materially superior to the original. Professional and competent technical service from Noah. Installation was a breeze. One day project and I can actually use the bumper tube to store the car waste hoses.
by:
The Bumper was great.It went on without any problems. I had only two issues. One of the removal end plates is bent and stuck inside the bumper It needs to be damaged further to get it out. The other is that it takes quite a bit of effort to get the blue painters tape off.
by:
I think I need longer brackets. Are the Heavy Duty or Med Duty longer? I need at least 3in longer, to match frame holes in E350 RV frame.
Mike L. profile picture
Etrailer Expert

Mike L.

4/1/2026

The # MO24VR extension plates would be your best bet, they're 10-11/16 inches long.

by:
Love the product and the ability to safely handle more cargo such as our 4 bike carrier. My only qualm is if you have a Camco Rhino waste hose you will have to use your old end cover instead of the stock ends that come with the unit. The little screws that hold the metal pieces in place are in the way and the hose will not go in.
Jesse profile picture

Jesse

8/28/2024

Rock solid! I carry 4 bikes, a 35 gallon waste tank and spare tire.

by:
Very good quality. Not as easy to mount, but it is solid and stronger than original. Finish is very good.
by:
Great product and sturdy design. Installation was not straight forward as the instructions suggest, but a lifetime of handy work allowed me to finish.
Scott profile picture

Scott

8/19/2025

Amazing product, it may cost more, but it would be nice if the trailer manufacturers use these to start with. They know their clients are going be carrying a lot of weight on their bumpers. Great option!!!

by:
Great product. I used different bolts to attach to the camper.
by:
Went together just as advertised
by:
Product quality is very good and powder coating was well done. My issue is with the shipment packaging. Although there was an attempt to protect the product in transit it did in fact fail. I recommend the shipper place reinforced cardboard on all four corners from top to bottom and also add reinforced cardboard at each end of the bumper. The shrink wrap was an attempt but didn’t prevent the scratches and dents. After spending nearly $[XX] for the bumper I would say an additional $[XX] spent in proper packaging would eliminate any returns. See pictures.
by:
It is a beast. Took some work to get the factory bumper off. I called Josh for help and he did. I was trying to save the factory bumper. After talking to Josh I just cut it off and then it went smooth. To many factory welds you can't get to. The heavy hauler went right on after. Looks great.
by:
Everything is was promised
by:
This is an impressive bumper. We ordered this to be delivered to a RV park in FL after our original 4” bumper twisted & broke the welds on our trip down from the weight of our mountain bikes (~ 200 lb total).
We went with a 5.3” replacement to make it easier to insert our sewer hoses & adapters. My husband & neighbor put the new bumper on in 2 h; it did require drilling new holes in the frame but that was easy enough & well worth it. This bumper is exceptionally strong, has a great finish and has a much better solution for closing the ends than your typical end caps. We also bought the 2” Shake-Stopper Hitch Receiver and it mounted in about 20 min. It is super strong and as advertised - it makes a very solid connection with the bumper. Highly recommend both
by:
The products I bought came a little earlier than originally stated, and that was great. Unpacking the products was a big pain in the a. However, every thing was in good shape. My main complaint that gives the 4 stars is I ordered a 4 inch bumper to replace my old 4 inch bumper, but with the slide gates on the ends (which looked like a great idea) my 4 inch dump hose won't slide in past the slide gates. Customer service says I'd have to have a 3 inch hose or buy a bigger bumper. That was not an issue I saw while shopping for the bumper. In fact, the little video showed tipping the slide gate to the side and easily sliding the hose inside. Nope! It never said anything about a smaller hose. I'm going to have to take off the screw in the slide gate on one end of the bumper and remove the gate every time I want my hose. I hope it won't bounce out while I am traveling. If it does I'll go back to a rubber cap, rats!
by:
Works great, tested with tow hitch ebike holder.
by:
Heavy duty quality metal. Came well packaged. Great instructions with photos. Clever engineering.
by:
Fast shipping and great packaging.
by:
It was easy to install with the adapter. Looks great
by:
Satisfied & would by again. The original bumper on my 27-foot Freedom Express travel trailer failed when I mounted a lightweight bicycle rack on it. I replaced it with this Heavy-Haul'r bumper. This has worked well. No problem at all now carrying my bicycles. I also use it to carry a equipment rack with an auxiliary generator and gas can. I usually run the generator from the carry rack attached to the Heavy-Haul'r bumper. A bit slow installing with some frame drilling on my camper required but works great once installed.
by:
Both products failed with a 4-bike rack rated for RV use the first time I used it.
Brooke M. profile picture
Etrailer Expert

Brooke M.

9/15/2023

Oh no! I am so sorry to hear that. Do you know the make and model of the bike rack you used?

Edward profile picture

Edward

9/15/2023

@BrookeM Yakima Stage Two
Brooke M. profile picture
Etrailer Expert

Brooke M.

9/15/2023

@Edward It looks like the Mount-N-Lock hitch used, part # MNT47FR, was over loaded. The platform of the rack runs from sixteen inches to sixty six inches, putting the center of the load for the carrier platform at forty one inches out, or roughly three and a half feet. The rack itself is probably ninety percent of the one hundred eight pound carrier weight, or ninety seven pounds. So, ninety seven pounds times three and a half feet puts the empty carrier at three hundred forty pound feet, or forty pound feet greater than the rated capacity of the MNT47FR hitch...before the bikes are even added! Unfortunately, the hitch was simply overloaded. If there is a silver lining, at least your rack and bikes werent lost!
by:
Not as easy to install as I thought. Looks great though.
by:
Vast improvement over the stock bumper that was on there
by:
Jeff profile picture

Jeff

4/15/2024

Brackets need to curve up bumper scrapes when pulling into raised driveways etc.

by:
Product arrived quickly, and was packaged extremely well! Installed and SOLID!
by:
Jenny N. profile picture
Etrailer Expert

Jenny N.

7/3/2023

I hate to see the low star with no information as to what happened. Please let me know how I can help.

by:
I received the new bumper right on time.
25
38
true
Show More Reviews

See what our Experts say about this Mount-n-Lock Accessories and Parts

  • Hauling E-Bikes With The Rear Bumper Of A 2007 Keystone Cougar 276RLS
    Hi George, Most OEM bumpers are typically 4" x 4" so you could just go with the the # MNT72VR instead and add on the Mount-n-Lock SafetyStruts Universal RV Bumper Support Brackets # MO34VR to increase the capacity of the OEM bumper to 400lbs. If that's not what you're wanting to do then yes, you could install both the ShakeStopper # MNT82VR and one of the 5.3" Heavy Haul'r bumpers to increase your capacity to haul some e-bikes: Mill Finish # MNT88VR Brushed Finish # MNT33VR Glossy...
    view full answer...
  • Replacement Bumper for Generator and Cargo Carrier on Grey Wolf Black Label
    Hi David; all of our heavy duty bumpers like the # MNT88VR you were looking at have the same fitment since it is designed to be universal. However, you will need to check out the frame on your Grey Wolf Black Label to make sure it is compatible. This fits I-beam, S-beam, tube, and channel frames which covers almost everything. If you have a flanged frame it must be at least 4" tall x 3" long and non-flanged frames must be 3" tall x 3" long. If your frame is shorter than your RV body you...
    view full answer...

Do you have a question about this Accessories and Part?


Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee Mary K
Written by:
Mary K
Employee Wilson B
Updated by:
Wilson B
Employee Amanda M
Edited by:
Amanda M

At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.