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Mount-n-Lock Heavy-Haul'r Standard Duty Replacement RV Bumper - 5.3" - 660 lbs - Black
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Mount-n-Lock

Mount-n-Lock Heavy-Haul'r Standard Duty Replacement RV Bumper - 5.3" - 660 lbs - Black

Part Number: MNT63VR
38 Reviews | 9 Questions
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$631.12
Retail:$722.63
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mount-n-lock accessories and parts rv cargo carrier bumper heavy-haul'r standard duty replacement - 5.3 inch 660 lbs black
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mount-n-lock accessories and parts rv cargo carrier bumpers heavy-haul'r standard duty replacement bumper - 5.3 inch 660 lbs black
mount-n-lock accessories and parts rv cargo carrier bumpers
mount-n-lock accessories and parts rv cargo carrier heavy-haul'r standard duty replacement bumper - 5.3 inch 660 lbs black

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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 MNT63VR 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" - 660 lbs - Black. Accessories and Parts reviews from real customers.
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Mount-n-Lock Accessories and Parts - MNT63VR

  • 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 sleek, glossy black powder-coat 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: 660 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 glossy black aluminum bumper is sleeker and 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.



10NBK92GB Mount and Lock Heavy Hauler Standard Duty RV Rear Bumper Replacement Kit - 660 lbs - Glossy Black Aluminum

Replaces Mount and Lock 10MBK92GB







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Customer Satisfaction Score:

Ratings & Reviews

4.5

38 reviews
5 Stars
(27)
4 Stars
(8)
3 Stars
(1)
2 Stars
(0)
1 Star
(2)
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by:
Very good quality. Not as easy to mount, but it is solid and stronger than original. Finish is very good.
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:
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:
Heavy duty quality metal. Came well packaged. Great instructions with photos. Clever engineering.
by:
Vast improvement over the stock bumper that was on there
by:
Always fast and easy.
by:
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.
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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:
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.
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Jesse profile picture

Jesse

8/28/2024

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

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.
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by:
Everything is was promised
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:
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:
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!
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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 Michael B
Updated by:
Michael B
Employee Amanda M
Edited by:
Amanda M

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