When selecting a class 4 ball hitch, you want proven strength, reliable fit, and durable finishes. The following options highlight sturdy construction, standard 2-inch receivers, and common ball sizes to fit most American trailers. Use this guide to compare capacity, drop, and mounting style to match your setup and towing needs.
| Product | Tow Capacity (Gross Trailer Weight) | Ball Size / Shank | Notes |
|---|---|---|---|
| CURT 40090 Chrome Trailer Hitch Ball | 10,000 lbs | 2-inch diameter ball; 1-1/4 inch shank | Chrome finish for corrosion resistance |
| Nilight Trailer Hitch Ball Mount | 7,500 lbs | 2-inch ball; 2×2 shank | 4-inch drop; corrosion-resistant finish |
| CURT 45332 Forged Steel Mount | 15,000 lbs | 2-5/16-inch ball; 2×2 shank | 4-inch drop; ready-to-tow design |
| CURT 45056 Mount With Ball & Pin | 7,500 lbs | 2-inch ball; 2×2 shank | 4-inch drop; gloss black finish |
| CURT 45310 Class 4 Ball Mount | 10,000 lbs | 1-1/4-inch hole accepts 1-1/4-inch shank | 2-inch drop; 1-inch rise; 2-inch ball mount |
These selections show a broad range of capacities and configurations. Whether you need maximum payload for heavy trailers or a lighter, easier-to-maneuver setup, the following detailed product sections present essential features, mounting compatibility, and practical notes to help you decide.
CURT 40090 Chrome Trailer Hitch Ball

The CURT 40090 hitch ball is built for reliability with a 10,000-pound gross trailer weight rating. Constructed from hot-forged steel, it provides solid towing strength for a range of trailers. It has a 2-inch diameter ball to fit most standard couplers and a 1-1/4-inch shank that measures 2-5/8 inches long, ensuring a secure attachment to trailer hitch mounts. A chrome-plated finish offers corrosion resistance to help maintain performance in rain and road grime.
Ideal for frequent towing tasks where a standard 2-inch connection is used, this ball is designed for straightforward compatibility and predictable performance. It’s a practical option for open trailers, utility trailers, and light-to-medium duty configurations where corrosion resistance and long-term durability matter.
Nilight Trailer Hitch Ball Mount

The Nilight hitch mount offers up to 7,500 pounds gross trailer weight with a 750-pound tongue rating. It uses a 2-inch ball and includes a 4-inch drop, a 2-inch by 2-inch shank, and a 5/8-inch pin hole. Its corrosion-resistant finish—featuring an E-Coat pre-coating and a textured black powder coating—provides enhanced protection against rust and wear in outdoor environments. This mount is well-suited for trailers, campers, motorcycles, and ATVs that require a standard 2-inch receiver.
With a straightforward ready-to-use approach, this option emphasizes durability and practical mounting, especially for mid-range towing tasks. Its build is designed to withstand typical road conditions while maintaining ease of installation and alignment with the trailer hitch.
CURT 45332 Forged Steel Mount

The CURT 45332 offers robust strength with a 15,000-pound gross trailer weight rating and a 1,500-pound tongue weight. It uses a 2-inch by 2-inch shank compatible with most standard receivers and features a 4-inch drop with a 2-5/16-inch ball for versatile towing. The 8-1/2-inch overall length provides ample clearance, and the kit includes a pre-attached tow ball and a trailer hitch pin for quick installation. This mount is designed for heavy-duty towing setups where reliability and long service life are priorities.
This mid-to-heavy-duty option balances high capacity with ready-to-tow design, making it appropriate for larger trailers, boats, or equipment trailers that demand a strong, secure connection and straightforward setup at the hitch.
CURT 45056 Trailer Hitch Mount

The CURT 45056 mount is built for dependable strength with a 7,500-pound gross trailer weight rating and a 750-pound tongue weight. It includes a 2-inch by 2-inch shank and a 4-inch drop, along with a 5/8-inch pin hole and an 8-1/4-inch overall length. A pre-attached tow ball and hitch pin facilitate quick, secure mounting to a 2-inch receiver. The gloss black powder coat adds a durable finish suitable for harsh weather, road spray, and regular use.
This option offers a balanced profile for everyday to heavy-duty towing tasks, with a focus on ready-to-use functionality and straightforward compatibility with common 2-inch receivers. Its finish helps maintain its appearance and performance after exposure to the elements.
CURT 45310 Class 4 Ball Mount

The CURT 45310 Class 4 ball mount is designed for versatility and dependable strength, rated up to 10,000 pounds gross trailer weight and 1,000 pounds tongue weight, subject to the lowest-rated towing component. It uses a 2-inch by 2-inch shank to fit standard receivers and features a 2-inch drop with a 1-inch rise to promote level towing. The 1-1/4-inch hole accepts a 1-1/4-inch diameter hitch ball (sold separately). This setup is well-suited for general-purpose towing where level alignment is beneficial and a compact, efficient mounting solution is preferred.
As a Class 4 option, it emphasizes compatibility, ease of use, and reliability in a wide range of trailer configurations while providing a straightforward upgrade path for heavier loads.
Buying Guide
Key purchase considerations
Capacity and safety: Match the gross trailer weight rating to your trailer’s weight plus cargo. Do not exceed the lowest-rated component in your towing setup.
Ball size and hitch compatibility: Ensure the ball size (2-inch or 2-5/16-inch) fits your coupler. Verify your receiver size is 2 inches and that the shank length fits your hitch height needs.
Drop and rise configuration: A 4-inch drop is common for level towing with many trailers. Consider whether you need more rise or more drop to achieve level alignment on your vehicle.
Construction and finish: Forged steel offers strength; chrome plating and powder coatings resist corrosion. A durable finish helps extend life in wet, salty, or muddy environments.
Ready-to-tow features: Some mounts come with pre-attached balls and hitch pins, reducing setup time. Check whether a ball mount and pin are included versus sold separately.
Comparison perspectives
- Heavy-duty needs: For larger trailers and higher loads, the CURT 45332 Forged Steel Mount provides up to 15,000 pounds capacity with a robust 2-5/16-inch ball.
- Standard towing with quick setup: The CURT 45056 and CURT 45310 options emphasize ready-to-tow features and reliable 2-inch couplers, with a balance of weight capacity and installation ease.
- Corrosion resistance: Chrome-plated and powder-coated finishes help protect against rust in varying climates, particularly for frequent outdoor use.
- Budget-conscious or lighter-duty needs: The Nilight option offers solid capacity with practical features like a protective finish and a combo of drop and shank suitable for common 2-inch receivers.
- Compatibility focus: Always confirm receiver size, ball size, and shank dimensions align with your current hitch setup to avoid mismatch and towing risk.
In selecting a class 4 ball hitch system, consider not only the immediate towing task but also potential future uses, trailer types, and climatic conditions. The right combination provides predictable performance, straightforward installation, and long-term resilience.