ARIES 
CURT 
LUVERNE 
UWS 
Trailer Ball #40091
- Fits 2 5/16" couplers and accepts up to 30,000 lbs. GTW
- Constructed from high-strength, hot-forged steel
- Heat-treated for optimum wear resistance
- Zinc-plated hex nut and helical lock washer for secure mounting
- Tested for safety to meet U.S. VESC V-19 specifications
Notes:
- The mounting platform must be at least 3/8" thick, and the hole size must not be more than 1/16" larger in diameter than the threaded shank.
Guides & Install Sheets
Product Videos
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How to Choose a Ball Mount and Trailer Ball - CURT
PRODUCT SPECIFICATIONS
- Ball Capacity30,000 LBS
- Ball Diameter2.3125
- colorRaw Steel
- FinishBlank
Hub Warehouse D20- MaterialBlank
- Part Type*
- Shank Diameter2
- Shank Length3 1/2 IN
- Shank Rise0 IN
- Shipping Weight9.000
- Superceded by Item40088
- Torque4550 FT LB
The CURT 2 5/16" trailer ball does not mess around. Simply put, it is a solid piece of towing equipment that makes all others look like they're just spinning their wheels. CURT 2 5/16" trailer balls are made with expert engineering to be packed with strength and durable enough to withstand the harsh wear of heavy-duty towing. Anything your class 5 trailer hitch and class 5 ball mount can handle, CURT has a 2 5/16" trailer ball to match. These tow balls are perfect for towing all types of heavy receiver-style trailers, including dump trailers, toy haulers, farm trailers, chopper boxes, dual-axle utility trailers, deluxe RVs, small yachts and more (NOTE: Never exceed the lowest weight capacity of any towing component; i.e. the vehicle, hitch, trailer, etc).
This 2 5/16" trailer ball features a ball capacity of 30,000 lbs. It features a 2" shank diameter, a 3 1/2" shank length, 0" of rise and a heat-treated, raw steel finish. To give you the power you need to tow with confidence, CURT 2 5/16" trailer hitch balls are thoroughly tested for safety and meet U.S. VESC specifications.