CURT Loaded Ball Mount 2-5/16" Ball, 15,000 lb — 2" Drop, Carbide Black Forged Steel

The CURT 45331 is a ready-to-tow, factory‑assembled forged loaded ball mount with a 2-5/16" ball, rated for 15,000 lb gross trailer weight and 1,500 lb tongue weight.

This forged CURT loaded ball mount arrives fully assembled and factory‑torqued so you can hitch and tow immediately without installing the trailer ball yourself. Built with a 2" x 2" shank and a durable carbide black powder coat, the 45331 combines heavy‑duty capacity, corrosion resistance, and precise geometry for leveling trailers with a 2" drop. It’s designed for demanding towing tasks — from large boats to double‑axle utility and travel trailers — while matching standard 2-5/16" couplers.

How does this ball mount save time during setup?

Because the trailer ball is factory‑torqued and installed, you skip measuring, threading, and re‑torquing on the vehicle. That eliminates a common installation step and reduces the risk of incorrect torque that can lead to unsafe towing.

• Factory‑installed 2-5/16" ball, ready to hitch right out of the box
• Pre‑torqued hardware reduces installation errors and setup time
• Compatible with standard 2" x 2" hitch receivers

What towing capacities and trailer types is the CURT 45331 suitable for?

The 45331 is rated for up to 15,000 lb gross trailer weight and 1,500 lb tongue weight, making it suitable for many heavy‑duty towing jobs. It pairs well with trailers that use a 2-5/16" coupler and require a modest 2" drop to level the tow vehicle and trailer.

• 15,000 lb gross trailer weight capacity for heavy trailers
• 1,500 lb tongue weight capacity for larger loads
• Ideal for boat trailers, double‑axle utility trailers, campers, and RVs

How does the construction protect against wear, rust, and road conditions?

The ball mount is forged from solid steel for structural strength, then finished with a carbide black powder coat that resists rust, chipping, and UV exposure. That combination delivers long service life under highway and marine conditions when properly maintained.

• Forged steel body for superior strength and impact resistance
• Carbide black powder‑coat finish to prevent corrosion and chipping
• Durable hardware and a solid shank built for repeated use

How does the 2" drop and 8-1/2" length affect trailer leveling and clearance?

The 2" drop provides a common amount of vertical offset to level a trailer when the tow vehicle’s rear sits lower than the trailer tongue. The 8-1/2" overall length gives good clearance while keeping the trailer close enough for stable handling.

• 2" drop for typical leveling needs between truck and trailer heights
• 8-1/2" length balances clearance and towing stability
• 2" x 2" shank fits standard hitch receivers without modification

Who is this for: The CURT 45331 loaded ball mount is aimed at owners of full‑size trucks and heavy‑duty towing setups who need a reliable, factory‑assembled solution that saves installation time. It’s a practical choice for boaters, RV owners, farms, contractors, and anyone who tows large trailers using a 2-5/16" coupler and a 2" x 2" receiver. Always verify that the ball mount’s ratings do not exceed the lowest rated component in your towing system (vehicle, hitch, ball mount, or trailer) before towing.