MAXXHAUL 2" x 2" Hitch Receiver Adapter for 4" RV Bumpers — 200 lb Tongue Weight, Heavy-Gauge Steel

The MAXXHAUL 50173 converts a 4" square RV bumper into a 2" x 2" receiver, providing a secure mount for bike racks, tire carriers, and other 2" shank accessories with a 200 lb tongue weight limit.

Turn your RV’s 4-inch square bumper into a versatile platform for rear-mounted accessories without welding or permanent modification. Built from heavy-gauge steel and finished with a durable black powder coat, this adapter slides into a 4" bumper and fastens with four bolts to create a stable 2" receiver opening. It’s designed for carrying appliances such as bike racks and spare tire carriers — not for towing trailers or handling cargo carriers — so it’s ideal when you need extra utility on the back of an RV while preserving safety margins.

How does the MAXXHAUL 50173 attach to my RV bumper?

Installation is straightforward: slide the adapter into your 4" square bumper and secure it with the included bolt pattern. No cutting or permanent alterations are required, and the four-bolt fastening system keeps the adapter aligned and stable under normal accessory loads.

• Fits standard 4" square RV bumpers
• Four-bolt mounting for reliable hold
• Installs quickly with common hand tools
• Non-permanent, reversible attachment

What accessories can I safely use with this receiver?

The MAXXHAUL 50173 accepts any accessory built for a 2" hitch shank, such as platform bike racks, spare tire carriers, and hitch steps. Be careful to keep the total tongue weight at or below 200 pounds, and avoid using it for towing or carrying heavy cargo packs beyond its rated capacity.

• Compatible with 2" shank bike racks
• Works with RV tire carriers and hitch steps
• Not intended for trailer towing or cargo carriers
• Observe 200 lb tongue weight limit for safe use

What materials and finish protect the adapter from weather?

This receiver adapter is fabricated from solid steel and coated in a textured black powder finish to resist surface corrosion and wear. The robust construction keeps the unit rigid under load while the finish helps shield it from road salt, rain, and general outdoor exposure.

• Heavy-gauge steel frame for strength and durability
• Black powder coat resists rust and abrasion
• Solid welded body weighs about 8 pounds for stable handling
• Designed to withstand typical RV exterior conditions

Are there safety considerations I should follow?

Yes—observe the 200 lb tongue weight rating and avoid applications for which the adapter is not intended, such as towing trailers or supporting cargo carriers beyond the rated load. Regularly inspect mounting bolts and finish for signs of wear, and tighten fasteners after initial installation and periodically thereafter.

• Do not exceed the 200 lb tongue weight capacity
• Not rated for towing or hauling heavy cargo
• Check bolts and finish for wear before each trip
• Follow accessory manufacturer guidelines when loading

Who this is for: The MAXXHAUL 50173 suits RV owners who want a simple, removable way to use 2" hitch accessories on travel trailer bumpers. It’s ideal for campers who need a secure place for a bike rack, spare tire mount, or step without permanent modification. If you require towing or heavy cargo hauling, choose dedicated towing hardware instead; for everyday accessory mounting on a 4" bumper, this adapter is a compact, robust solution.