CURT 2 in Trailer Ball Chrome — 10,000 lb Forged-Steel Hitch Ball with Fine-Thread Shank

The CURT 40090 is a 2-inch diameter chrome trailer ball built from forged steel and rated to tow up to 10,000 pounds when matched with compatible towing components.

Choose a trailer ball engineered for dependable connection and long-term durability. The CURT 40090 combines hot-forged steel construction, a corrosion-resistant nickel-chrome finish, and fine-threaded hardware to deliver a secure hitching solution for many standard and heavier-duty trailers. Every unit is manufactured to fit 2" couplers and tested to U.S. VESC specifications so you can focus on the road instead of the connection behind you.

How does this tow ball handle heavy loads safely?

This model is rated for a gross trailer weight of 10,000 pounds when installed and used within the limits of your vehicle and hitch system. Its hot-forged steel body and precise dimensions reduce flex under load while the fine-threaded shank and included zinc-plated nut with helical lock washer improve clamping force.

• 10,000 lb gross trailer weight rating (match to lowest-rated towing component)
• Hot-forged steel core for high tensile strength
• Fine-threaded 1-1/4" shank for increased holding power
• Supplied zinc-plated hex nut and helical lock washer for secure installation

Will the CURT 40090 fit my 2" coupler and hitch mount?

This ball is designed specifically for standard 2" couplers and fits ball mounts that accept a 1-1/4" diameter shank. The shank length and thread profile accommodate most class 3 and class 4 applications, but verify receiver, ball mount, and vehicle ratings before towing.

• Ball diameter: 2.00" to match 2" couplers
• Shank diameter: 1-1/4" and shank length: 2-5/8" for common ball mounts
• Fine threads require 450 lb.-ft. torque for proper seating
• Suitable for many pickup trucks and SUVs when used within system limits

How does the finish protect the hitch ball from weather and wear?

The CURT 40090 uses a nickel-chrome plating that resists rust, chipping, and abrasion better than bare steel. That finish helps maintain a smooth coupling surface and reduces corrosion where tow balls are exposed to road salt, water, and grime.

• Nickel-chrome plated exterior for corrosion resistance
• Smooth polished surface reduces wear on coupler components
• Finish helps prevent pitting and surface rust during regular use

What installation and maintenance steps are recommended?

Install the ball with the provided hex nut and lock washer, torquing to the specified value for a firm, safe connection. Inspect the ball, nut, and coupler regularly for wear and re-torque after initial use; replace any component that shows significant corrosion or deformation.

• Hand-thread then torque the nut to the recommended 450 lb.-ft. specification
• Check nut tightness and surface condition before long trips
• Clean and lightly lubricate mating surfaces to reduce wear and corrosion

Who is this for: The CURT 40090 is made for drivers who tow medium- to heavier-duty trailers—utility trailers, boats, campers, ATVs, and similar loads—using a 2" coupler. It’s a solid choice for owners of pickup trucks and SUVs who need a durable, tested tow ball with a corrosion-resistant finish. Always confirm the 10,000 lb rating does not exceed the lowest capacity among vehicle, hitch, and trailer components before towing.