CURT 2" Trailer Ball — 10,000 lb Stainless Steel, 1-1/4" x 2-5/8" Fine-Thread Shank

This trailer ball combines corrosion-resistant stainless construction with precision machining so it seats securely in standard 2" couplers and stands up to demanding towing conditions. Designed for class 3 and class 4 hitch systems, the CURT 2" ball is tested to meet U.S. VESC V-5 specifications and pairs with common ball mounts on trucks and SUVs. It’s a no-nonsense component intended to make hitching straightforward while resisting rust and surface wear during repeated use.

How does this 2" trailer ball handle heavy loads?

The CURT 2" ball is rated for a 10,000 lb gross trailer weight, meaning it supports most standard-duty and many heavy-duty towing tasks when used with compatible vehicle and hitch components. Capacity is limited by the weakest link in the towing assembly—always check vehicle, hitch, and coupler ratings before towing.

• 10,000 lb gross trailer weight rating
• Intended for use with class 3 and class 4 hitches
• Fits standard 2" trailer couplers
• Do not exceed the lowest rated component in your towing setup

What materials and features protect it from corrosion?

The ball head and shank are made from stainless steel, giving superior resistance to rust and scratches compared with plain steel finishes. Fastening hardware includes a zinc-plated hex nut and helical lock washer to maintain a secure mount and add another layer of environmental protection at the connection points.

• Stainless steel construction for the ball and shank
• Zinc-plated hex nut to resist corrosion where it matters
• Helical lock washer helps prevent loosening from vibration
• Fine threads improve clamp strength and torque retention

How is the shank designed for installation and reliability?

This model uses a 1-1/4" diameter shank that measures 2-5/8" long, with fine threads that provide increased holding strength compared with coarse-thread alternatives. The longer, fine-thread shank accepts heavy torque values during installation without stripping, while the included lock washer and nut secure the ball to the ball mount under dynamic towing loads.

• Shank diameter: 1-1/4" for common ball mounts
• Shank length: 2-5/8" to accommodate thick mounts and spacers
• Fine-thread design for superior clamp force
• Supplied with zinc nut and helical lock washer for secure fit

What safety testing does this trailer ball undergo?

CURT tests its trailer balls to comply with U.S. VESC V-5 performance standards to ensure consistent manufacturing quality and predictable service. While the component is tested to meet industry criteria, final towing safety depends on correct installation and adherence to the lowest rated element in the towing system.

• Manufactured to meet U.S. VESC V-5 specifications
• Quality controls applied during production for consistent strength
• Tested units validate mechanical performance under load
• Installation torque and assembly integrity are required for safe use

Who is this for: The CURT 2" stainless trailer ball is suited to pickup truck and SUV owners who tow trailers within a 10,000 lb range and want a corrosion-resistant, precision-fit ball for class 3 or class 4 hitch systems. It’s a practical choice for seasonal haulers, contractors, and anyone who needs a reliable, long-lasting connection point for standard 2" couplers—provided the vehicle, hitch, and trailer ratings are compatible.