RockerBall 2" Cushion Hitch Trailer Ball (1" Shank, 7,500 lbs.) Curt
(Curt Part #: CM-40247)
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The Curt RockerBall trailer ball provides improved comfort and enhanced control while towing, featuring our unique ShockDrop™ technology. An integrated cushion isolator allows this hitch ball to turn a standard ball mount into a cushion hitch with anti-rattle capabilities.

The RockerBall trailer ball dynamically reduces jerking and jarring while towing. As your trailer passes over bumps and potholes, it produces all kinds of vibrations, jolting, chucking and noise. With a traditional metal-on-metal connection, these annoyances are directly transferred to your tow vehicle, making your ride noisy, uncomfortable and taking a toll on your towing system.

The RockerBall completely changes your towing experience by absorbing the erratic movement and rattling of your trailer at the coupling point. This provides a smoother ride and increased control over the vehicle and trailer. It also reduces the amount stress placed on your vehicle, receiver hitch, brakes and suspension system.

The RockerBall is also extremely low maintenance compared to other torsion hitch and cushion hitch options. It has no airbags or bearings to service. Simply apply grease to the integrated zerk fitting as needed for continuous lubrication and smooth operation.

The RockerBall tow ball retrofits onto a variety of standard ball mounts, virtually any mount with a 2-1/2 inch wide trailer ball tongue platform and a 1 inch trailer ball hole. The anti-swivel base keeps the hitch ball properly oriented and locked in place when fully torqued.

The Curt RockerBall hitch ball is constructed from forged steel for exceptional strength. The base is covered in a durable powder coat finish, and the ball itself has a chrome plating for long-lasting weather resistance.

  • The mounting platform must be at least 3/8" thick and the hole size must not be more than 1/16" larger than in diameter than the threaded shank.

Specs

Ball Diameter2 inch
Thickness Range3/8 inch to 3/4 inch
FinishChrome & Black
GTW7,500 lbs.
Shank Diameter1 inch
Shank Length2-1/8 inches
Torque nut to250 ft. lbs.

Features

  • Anti-swivel base ONLY fits 2-1/2" wide ball mount tongues with 1" diameter hole
  • Dampens jerking and jarring from bumps and potholes for smoother towing
  • Cushioned isolators reduce rattling and vibration for a more comfortable ride
  • Reduces shock loads to the vehicle during sudden braking or acceleration
  • Minimizes stress on tow vehicle's suspension and brakes for extended longevity
  • Grease zerk fitting provides easy lubrication
  • Durable carbide black powder coat finish on base and chrome plating on ball
  • Tested for safety to meet SAE J684 specifications
  • Limited lifetime warranty (one-year finish, one-year parts)

Included:

  • RockerBall, nut and lock washer

Not Included:

  • Standard ball mount with 2-1/2" wide platform and 1" ball hole

Curt

CURT Offers a complete line of towing products and is the leading manufacturer of USA-made custom-fit trailer hitches. 

We offer the broadest selection of custom-fit receiver hitches for nearly every vehicle on the road today. We also offer gooseneck, 5th wheel and weight distribution hitches, as well as electrical components, ball mounts, trailer balls, cargo carriers, bike racks and other towing accessories.

For everything from passenger cars and vans to full-size pickups and SUVs, CURT is 'The First Name in Towing Products'.

The above information has been provided by the Manufacturer, and we cannot guarantee the accuracy thereof or endorse the opinions expressed.