CURT 2-1/2" Forged Ball Mount 2-1/2" Shank, 20,000 lb Capacity — 4" Drop, Carbide Powder-Coat

The CURT 45458 is a one-piece forged 2-1/2" ball mount built for heavy commercial towing with up to 20,000 lb gross trailer weight capacity.

Engineered for demanding work environments, this CURT forged ball mount replaces multi-piece or welded designs with a single solid-steel construction that resists flex and fatigue. Its carbide powder-coat finish helps protect against corrosion, abrasion and UV exposure so the mount keeps performing whether it’s hauling equipment across a jobsite, pulling a car hauler, or towing an RV.

How does the CURT 45458 stand up to heavy-duty towing?

The strength comes from its one-piece forged construction rather than welded assemblies, giving it higher resistance to stress and fewer failure points. CURT rates this mount for 20,000 lb gross trailer weight and 2,700 lb tongue weight when used within the limits of your towing system.

• Solid forged steel body for superior structural integrity
• Zero-weld design to minimize fatigue-prone joints
• Class 5 commercial-duty performance when paired with compatible receivers

What fitments and measurements should I check before buying?

This ball mount uses a 2-1/2" x 2-1/2" shank that slides into standard 2-1/2" receivers; confirm your hitch accepts that size. Note the overall geometry: 4" drop, 2-1/2" rise and an 8-1/2" length to match trailer tongue height and provide stable towing geometry.

• Shank: 2-1/2" x 2-1/2" — fits matching receiver tubes
• Drop/Rise: 4" drop / 2-1/2" rise to accommodate hitch and trailer height differences
• Length: 8-1/2" overall for proper clearance and leverage
• Ball hole: 1-1/4" to accept common ball sizes and mounts

How does the finish protect the mount over time?

CURT applies a carbide powder-coat that delivers a tough barrier against rust, scratching and sunlight exposure typical of working rigs. The coating helps the mount retain its appearance and structural condition when exposed to road grime, salt, and daily wear.

• Carbide powder coat resists corrosion and abrasion
• UV-stable for outdoor storage and prolonged use
• Reduces surface wear from hitching and handling

What towing setups work best with this ball mount?

Because of its high capacity and commercial design, the 45458 is ideal for full-size pickups, flatbeds, work trucks and other vehicles equipped with a 2-1/2" receiver. Match the mount to a vehicle and hitch rated to handle the same or greater loads and always obey the lowest-rated component limit in your towing chain.

• Recommended for trucks, SUVs and commercial flatbeds
• Commonly used with dump trailers, car haulers, toy haulers and RVs
• Pair with a Class 5 commercial hitch for maximum capability

Who is this for? The CURT 45458 forged ball mount is designed for professionals and serious owners who require dependable, high-capacity towing hardware. If you regularly tow heavy trailers, equipment or multiple-axle loads and you have a 2-1/2" receiver, this forged, zero-weld mount gives the strength and durability needed for frequent, demanding use. Always verify vehicle, hitch and trailer ratings before towing and follow safe hitching practices.