CURT Class 4 Ball Mount 2" Shank — 10,000 lb GTW, 2" Drop (9-3/8"), CNC-Formed Gloss Black

CURT Class 4 Ball Mount (2" shank) is a heavy-duty, CNC-formed towing accessory rated for 10,000 lbs GTW and designed for precise trailer leveling with a 2" drop or 1" rise.

This rugged ball mount is built from high-strength steel with robotic welding and a gloss black powder-coat finish to resist rust, chips and UV damage. It fits standard 2" x 2" receiver hitches, accepts a 1-1/4" trailer ball shank, and includes a hollow shank for lighter weight and anti-rattle pin compatibility. Whether you frequently tow boats, RVs, livestock trailers or heavy utility loads, this mount delivers consistent alignment and dependable capacity when used within the limits of your towing system.

How does this ball mount help level my trailer?

The CURT Class 4 mount offers a 2" drop designed to bring most trailers level with common tow vehicles. Flip the mount to get a 1" rise when the trailer tongue sits too low relative to the tow vehicle. These simple height options make it faster to achieve correct towing geometry and reduce sway from improper angles.

• 2" drop for trailers needing lower hitch height
• 1" rise when flipped for higher trailer tongues
• Helps maintain correct trailer-to-vehicle pitch for safer towing
• Quick flip design with standard ball hole setup

What towing capacity and tongue weight ratings does it support?

This Class 4 ball mount carries a gross trailer weight (GTW) capacity of 10,000 lbs and a tongue weight (TW) rating of 1,000 lbs when paired with appropriate hitch hardware and a compatible vehicle. Always follow the lowest-rated component in your towing chain and never exceed the limits specified by your vehicle or hitch manufacturer.

• 10,000 lbs gross trailer weight capacity
• 1,000 lbs tongue weight rating
• Designed for heavy trailers like boats, RVs and livestock trailers
• Check vehicle and hitch ratings before towing

What construction and corrosion protection features are included?

The mount is CNC-formed for dimensional accuracy, robotically welded for consistent strength and mechanically descaled to remove surface impurities prior to finishing. A gloss black powder-coat adds a durable barrier against corrosion, chips and UV exposure so the mount retains appearance and performance over time.

• High-strength steel construction with precise CNC forming
• Robotic welding for consistent, dependable seams
• Mechanical descaling before finishing for a clean surface
• Gloss black powder-coat resists rust, chips and sun damage

How does the hollow shank and ball hole affect installation?

The hollow 2" x 2" shank reduces weight while still meeting strength requirements, and it accepts an anti-rattle hitch pin or lock to minimize noise and vibration. The 1-1/4" ball hole fits standard balls with a 1-1/4" shank, simplifying ball selection and replacement when needed.

• Hollow shank for lighter weight and anti-rattle pin compatibility
• Fits 2" x 2" receiver openings commonly found on Class 4 hitches
• 1-1/4" ball hole accepts standard 1-1/4" shank trailer balls
• Easy to install and secure with standard hitch pins or locks

Who is this for: The CURT Class 4 Ball Mount is aimed at drivers who tow heavy loads regularly — boat owners, RVers, farmers, contractors and commercial users — and need a reliable, accurately made mount with high capacity and simple height options. If your vehicle and hitch are rated for Class 4 towing and you require a durable, rust-resistant ball mount that supports anti-rattle hardware, this CURT unit is a practical choice. Always verify your entire towing system’s ratings before use.