CURT Forged Trailer Hitch Mount with 2-5/16" Ball, Fits 2-1/2" Receiver — 20,000 lb Capacity, 2" Drop, Carbide Black

CURT 45371 is a forged, loaded trailer hitch mount with a factory-installed 2-5/16" ball, rated for 20,000 lb gross trailer weight and featuring a 2" drop for proper trailer leveling.

This heavy-duty CURT ball mount is built for high-capacity towing where durability and reliability matter. Made from solid forged steel and finished in a carbide black powder coat, the 45371 accepts trailers with a 2-5/16" coupler and fits receivers with a 2-1/2" x 2-1/2" opening. It is engineered to manage large loads — such as deluxe campers, double-axle utility trailers, and heavy boat trailers — while resisting corrosion, chipping, and UV exposure for long-term use.

How much weight can this ball mount safely handle?

The CURT 45371 is rated for a gross trailer weight (GTW) of 20,000 pounds and a tongue weight (TW) capacity of 2,000 pounds. Always observe the lowest rated limit among vehicle, hitch, ball mount and trailer components when towing to avoid overloading.

• Gross trailer weight: 20,000 lb
• Tongue weight: 2,000 lb
• Designed for heavy-duty trailers, campers and multi-axle loads

Will this mount fit my hitch receiver and trailer coupler?

This ball mount is sized to slide into a 2-1/2" x 2-1/2" receiver tube and features a factory-torqued trailer ball that matches a 2-5/16" coupler. It does not include a hitch pin, so you’ll need to supply the correct pin or locking pin for your receiver.

• Receiver compatibility: 2-1/2" x 2-1/2"
• Coupler size: 2-5/16" ball installed
• Hitch pin: sold separately; select appropriate diameter and length

What materials and finish protect this ball mount from wear?

The CURT 45371 is forged from solid steel for maximum strength and rigidity under heavy loads. Its carbide black powder coat finish provides a protective layer that reduces the risk of rust, flaking and UV-related fading, helping the mount retain structural integrity and appearance over time.

• Construction: forged steel for superior tensile strength
• Finish: carbide black powder coat for corrosion and chip resistance
• Factory-torqued ball ensures secure attachment and consistent performance

How does the 2" drop affect trailer setup and leveling?

The 2" drop on this loaded ball mount helps align the trailer tongue with the tow vehicle’s hitch height, promoting level towing and even weight distribution. Correct leveling improves handling, reduces sway potential, and ensures the trailer rides as intended.

• Drop amount: 2" to lower trailer coupler height relative to hitch
• Helps establish a level tow for safe weight distribution
• Useful for trailers that sit slightly higher than the tow vehicle hitch

Who is this for? The CURT 45371 is intended for drivers who tow heavy loads and need a rugged, ready-to-use ball mount with a high capacity rating. It suits owners of large boats, multi-axle utility trailers, deluxe campers, livestock trailers and other heavy-duty towing setups that require a 2-5/16" coupler and a 2" drop. If you need a forged steel mount with a dependable finish and factory-installed ball, this model provides a straightforward, high-strength solution — just add the proper hitch pin and verify your vehicle and trailer ratings before towing.