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Outfit your HEAVY-HAUL'R™ Bumper with these Cargo Box Support Arms. 

These strong, attractive cargo carrier tray arms come in a matched pair and mount directly to our HEAVY-HAUL'R™ Aluminum RV Cargo Replacement Bumper. These are the same support arms that come with our HEAVY-HAUL'R™ RV Cargo Bumper Generator & Cargo Carrier Trays and are available in either bright aluminum or black powder coated steel.  These arms can be used to safely and solidly mount the cargo container of your choice to your HEAVY-HAUL'R™ Aluminum RV Cargo Replacement Bumper.


Can I Mount My Generator to My RV Bumper Using These Cargo Carrier Tray Arms?

We recommend that whatever is mounted across the cargo carrier tray arms provide lateral and angular rigidity.  A simple example of this is a cargo box like those shown below; as the boxes are loaded, the additional weight only creates a downward force and no side force on the arms. Assuming that the boxes are bolted to the arms at four widely-spaced points (two points on each arm), angular rigidity is provided, preventing the arms from moving horizontally angularly in relation to the bumper. An extreme counter example showing a lack of lateral rigidity would be a piece of canvas attached between the two arms; as it is loaded it sags, exerting side forces and drawing the arms closer together. Most generators have a rigid frame, so as long as the generator frame is bolted directly to the the tray arms at four widely-spaced points (two points on each arm), you can enjoy the full cargo-carrying capacity listed below. If you wish to carry the generator on it's four feet (typically done to dampen the vibration), we encourage you to consider using our HEAVY-HAUL'R™ RV Cargo Bumper Generator & Cargo Carrier Trays.


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Suggested Cargo Companions for Our Mount-n-Lock™ Cargo Carrier Tray Arms
Note: Fasteners not included and drilling likely required to mate products.


Product Features

fits 6 inch 85hAttractive, rustproof all-aluminum tray components
Strong, bumper-mounted design
Roughly 4 square feet of platform area (2 feet wide by 2 feet deep)
Cargo carrier clamps tight to existing bumper; eliminating shake, rattle, and roll
Manufacturer's limited lifetime warranty


Product Technical Specifications

Length:  24 Inches
Width:  2.2 Inches
Height:  6 Inches
Weight: 5 Pounds - Aluminum, 14 Pounds - Steel
Cargo Capacity: 175 pound-feet - Aluminum, 225 pound-feet - Steel per arm pair*
Material: Aluminum or Steel

Your Order Includes

2 - Mount-n-Lock™ Heavy Duty Bumper Modular Cargo Carrier Tray Arms
Corrosion-Resistant Mounting Hardware

*Results vary based on age and condition of the bumper, frame, and vehicle.

bwc1 bwc2

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HEAVY-HAUL'R™ Bumper-Mounted Cargo Box Support Arms

  • Availability: In Stock
  • $157.64
  • $129.95


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Tags: Cargo Tray, Tray