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Universal Part
UPC: 612314047970

RockerBall Cushion Hitch with 2" Ball (2" Shank, 7,500 lbs., 5" Drop) #45144

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  • Dynamic trailer ball featuring ShockDrop technology
  • 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
  • Fits trailer hitches with a 2" x 2" receiver tube opening
  • Virtually maintenance-free with no airbag or bearings to service
  • Grease zerk fitting provides easy lubrication
  • 5" drop for leveling towing with large or lifted trucks
  • Forged steel ball for dependable towing power
  • Durable black powder coat finish (chrome plating on ball)
  • Standard trailer ball diameter fits 2" couplers
  • Rated for 7,500 lbs. GTW and 750 lbs. TW
  • Tested for safety to meet SAE J684 specifications
  • Limited lifetime warranty (one-year finish, one-year parts)


  • Includes 2" RockerBall #40047, ball mount #45070 and anti-rattle #22321
  • Patent# 11,192,408
  • Weight capacity may change if trailer ball is removed

Guides & Install Sheets

Product Videos

  • Product Videos First-of-Its-Kind Cushion Hitch Ball | RockerBall™
  • Product Videos How Has RockerBall™ Changed The Way You Tow?


  • Side Application Type DescriptionNot Applicable
  • Shipping Weight15.000
  • Shank Length2 IN
  • HUB_USAD01
  • Mount Type DescriptionNot Applicable
  • Installation Time Exact0
  • MaterialFORGED STEEL
  • Drop5 IN
  • Ball Diameter2 IN
  • Shank Diameter2 IN
  • Receiver Tube Size2 IN
  • WarrantyLimited Lifetime Warranty (One-Year Finish, One-Year Parts)
  • Ball Capacity7,500 LBS
  • Tongue Weight (TW)750 LB

WARNING: Cancer and Reproductive Harm -

The CURT RockerBall™ cushion hitch provides improved comfort and enhanced control while towing, featuring our unique ShockDrop™ technology. An integrated cushion isolator allows the hitch ball to turn the standard ball mount into a cushion hitch with anti-rattle capabilities.

The RockerBall™ ball mount kit is a shock-absorbing hitch accessory that 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.

This RockerBall™ hitch kit comes with a standard ball mount with a 5" drop and standard 2" shank to fit most class 3, class 4 and class 5 receiver hitches. It also includes an anti-rattle shim kit for maximum vibration resistance.

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

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