CURT 45143 RockerBall Cushion Hitch – 2-Inch Ball, 3-Inch Drop, 7,500 lb

CURT 45143 RockerBall is a cushioned trailer hitch assembly that uses CURT ShockDrop technology to reduce jerking, jarring and vibration transferred through the trailer coupling. It fits a 2 x 2-inch receiver and provides a 3-inch drop for a matching 2-inch trailer coupler.

Ratings and specifications

• Manufacturer part number: CURT 45143
• Trailer ball diameter: 2 in
• Maximum gross trailer weight: 7,500 lb
• Maximum tongue weight: 750 lb
• Receiver opening: 2 x 2 in
• Drop: 3 in
• Construction: forged-steel ball and steel ball-mount assembly
• Finish: black powder coat on mount; chrome-plated ball
• Safety testing: SAE J684
• Warranty: limited lifetime; one-year finish and one-year parts coverage

Included components

CURT lists this kit as including the 2-inch RockerBall #40047, the 3-inch-drop ball mount #45050 and the anti-rattle component #22321. It is supplied as a complete cushion-hitch assembly for a compatible 2-inch receiver; confirm that the receiver, vehicle and trailer are all appropriately rated.

Maintenance and installation

Grease the RockerBall assembly before initial use and then every 3 months or 3,000 miles, whichever comes first, using a high-quality molybdenum-based grease through the grease fitting. CURT specifies 35 ft-lb for the anti-rattle hitch pin. Do not combine multiple shock-dampening products in the same towing setup. Always follow the supplied installation instructions and never exceed the lowest-rated towing component.