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Original price was $165.95. Current price is $99.95.You save $66.00 (40%)
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Includes 2" RockerBall #40047, ball mount #45050 and anti-rattle #22321
Patent# 11,192,408
Weight capacity may change if trailer ball is removed
Includes 2" RockerBall #40047, ball mount #45050 and anti-rattle #22321
Warranty: Limited Lifetime Warranty (One-Year Finish, One-Year Parts)
Receiver Tube Size (Inches): 2 IN
Finish: BLACK POWDER COAT
WC / TW (Pounds): 750 LB
WC Tongue Weight (Pounds): 750 LB
Ball Diameter (Inches): 2 IN
Installation Time Exact (Minutes): 0
The CURT RockerBall cushion hitch dynamically absorbs jerking and jarring from your trailer at the coupling point. The ball easily bolts onto the included trailer hitch ball mount, giving you increased comfort, enhanced control and extended longevity of your vehicle's systems. The RockerBall tow ball is engineered with ShockDrop technology: a cushion isolator that reduces noise, vibrations and chucking at the coupling point. This produces quieter towing, increased driver control over the trailer and reduced strain on the vehicle's brakes, towing system and suspension, compared to a conventional metal-on-metal towing connection. This RockerBall kit comes with a standard ball mount, featuring a 3-inch drop and a 2-inch shank to fit most class 3, class 4 and class 5 hitch receivers. It also includes a threaded anti-rattle hitch kit. The RockerBall hitch ball is virtually maintenance-free. Unlike other cushion hitch and torsion hitch options, it has no airbags or bearings to service. Just apply grease to the zerk fitting as needed for continuous lubrication and smooth towing. The RockerBall trailer ball is constructed from forged steel for exceptional strength, and it comes with a powder coat finish and chrome plating for dependable corrosion resistance.
CURT offers a variety of high-quality trailer hitches and accessories for select vehicle models. Find the perfect fit for your towing needs at TowUniverse.
CURT, a Lippert brand, offers a complete line of towing products and is the leading manufacturer of custom-fit trailer hitches. We offer the broadest selection of custom-fit hitches, and each one is designed, welded, and coated in Wisconsin.
CURT is also a leader in flat towing products, as well as 5th wheel, gooseneck, and weight distribution hitches, ball mounts, electrical components, cargo solutions, 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®.'
Experts available to answer your questions
Call 888-634-9494Rediscover "Us" Time | Tested. Proven. Safe. Towing Products
The CURT 45143 is a loaded ball mount assembly designed for towing trailers. It consists of a ball mount that inserts into a vehicle's receiver tube hitch, an anti-rattle clamp plate to reduce movement, an anti-rattle hitch pin for secure fastening, and a clip for safety. The assembly is rated for a gross trailer weight of 7,500 lbs and a tongue weight of 750 lbs.
The CURT 45143 is designed to insert into a standard receiver tube hitch. However, you must verify that your vehicle has a receiver hitch installed and that the trailer ball size matches your trailer coupler. If the ball size does not match the coupler, the trailer could become uncoupled. Consult your vehicle manufacturer's documentation or CURT customer service to confirm compatibility with your specific vehicle.
The CURT 45143 is rated for a gross trailer weight (GTW) of 7,500 lbs and a tongue weight (TW) of 750 lbs. Never exceed your vehicle manufacturer's recommended towing capacity, as the product ratings represent only the capability of the ball mount itself, not the complete towing system. You must verify that all components of your towing system—vehicle, hitch, wiring, and brakes—meet or exceed the load you intend to tow.
You will need a torque wrench and a socket. These are essential to tighten the hardware to the specified torque values: 250 ft-lbs for the 1" bolt and 35 ft-lbs for the 1/2" anti-rattle pin. Proper torque is critical for safety.
The kit includes: (1) loaded ball mount assembly, (1) anti-rattle clamp plate, (1) anti-rattle hitch pin, and (1) clip. All parts are necessary for proper installation and operation.
The manual does not specify removal of vehicle components. The ball mount is designed to insert directly into your existing receiver tube hitch. Ensure the receiver tube is accessible and the hitch pin hole is aligned before beginning installation.
Follow these steps: (1) Place the anti-rattle clamp plate inside the hollow ball mount shank and align the nut with the hitch pin hole. (2) Insert the ball mount into your receiver tube and align with the hitch pin hole. (3) Place the lock washer onto the anti-rattle hitch pin and thread it completely through the nut in the clamp plate. Tighten to 35 ft-lbs and insert the clip through the hole in the exposed end. (4) Grease the assembly using the grease zerk on the bottom of the shank before initial use.
Yes. The small tab on the back of the clamp plate may be bent straight to ease installation. This is an optional modification to simplify fitting the plate into the ball mount shank.
The anti-rattle hitch pin (1/2") must be tightened to 35 ft-lbs. Use a torque wrench to ensure accuracy. Failure to tighten to the specified torque can result in serious injury or death.
The 1" bolt must be tightened to 250 ft-lbs. Use a torque wrench and socket to achieve the correct torque. Proper torque is essential to prevent hardware failure and ensure safe operation.
Grease the trailer ball assembly before initial use and then once every 3 months or 3,000 miles of use, whichever comes first. Use a high-quality molybdenum-based grease applied through the grease zerk located on the bottom of the RockerBall shank. The assembly is adequately lubricated when grease can be seen in the marked areas on the shank. Failure to grease the assembly may lead to failure and can result in serious injury or death.
Before every use, verify that the snap ring on the pivot pin of the trailer ball assembly is in place and properly seated. Periodically check that the hex nut is tightened to the correct torque specification (35 ft-lbs for the anti-rattle pin). Ensure that safety chains operate freely around the trailer ball system and do not become entangled. If the snap ring is missing or the trailer ball pin has backed partially out, immediately discontinue use and do not tow.
The product has reached the end of its useful life and must be replaced when the ball can be moved five degrees or more from a vertical position with minimal force applied by hand. Continued use of a worn trailer ball assembly may result in the trailer becoming separated from the vehicle. If you observe this condition, consult CURT customer service and do not tow.
No. Use of any pin other than what is provided by the manufacturer could be a serious safety hazard and will void the warranty. Always use the anti-rattle hitch pin (#3) supplied in the kit.
Immediately discontinue product use if the snap ring is missing on the end of the trailer ball pivot pin. Do not tow the trailer. The snap ring is a critical safety component that must be in place and properly seated before every use. Contact CURT customer service for a replacement assembly.
Failure to tighten hardware to the specified torque can result in serious injury or death. The hardware may loosen during towing, causing the ball mount to shift or separate from the receiver tube, which could result in the trailer becoming uncoupled from the vehicle. Always use a torque wrench to tighten the anti-rattle hitch pin to 35 ft-lbs.
Failure to grease the trailer ball assembly may lead to failure and can result in serious injury or death. Proper lubrication prevents wear and corrosion of the ball and shank, which could cause the ball to seize, crack, or separate during towing. Grease before initial use and every 3 months or 3,000 miles using a high-quality molybdenum-based grease.
Safety chains must operate freely around the trailer ball system and must not become entangled. If chains are entangled, they cannot function properly in the event of a separation, and the trailer could become a hazard on the road. Ensure adequate clearance between the chains and the ball mount during installation and before every tow.
The manual rates the installation difficulty as 'Easy' and does not require professional installation. However, you must have a torque wrench and socket to properly tighten the hardware to specification. If you are unfamiliar with using a torque wrench or working with hitch equipment, consult a professional installer.
The CURT 45143 fits any vehicle with a standard receiver tube hitch. Verify that your trailer ball size matches your trailer coupler and that your vehicle's towing capacity meets or exceeds your trailer's weight. Contact CURT customer service at 877-287-8634 to confirm fitment for your specific vehicle.
No drilling is required. The CURT 45143 inserts into your existing receiver tube hitch and is secured with the supplied anti-rattle hitch pin through the factory hitch pin hole.
Tighten the 1/2" anti-rattle hitch pin to 35 ft-lbs using a torque wrench. Do not exceed this specification.
Grease before initial use and then every 3 months or 3,000 miles of use. Use high-quality molybdenum-based grease applied through the grease zerk on the bottom of the shank. Failure to grease can lead to failure and serious injury.
Before every use, verify that the snap ring on the pivot pin is in place and properly seated. Check that the hex nut is tightened to 35 ft-lbs. Ensure safety chains operate freely and are not entangled. If the snap ring is missing or the pin has backed out, do not tow.
| Part # | Shank Size | GTW / TW | Ball Diameter | Drop | Length | Included Parts |
|---|---|---|---|---|---|---|
| RockerBall Starter Kits | ||||||
| 45143 | 2" | 7,500 / 750 lbs. | 2" | 3" | 8-1/4" | 45050 ball mount, 40047 RockerBall, 22321 anti-rattle |
| 45144 | 2" | 7,500 / 750 lbs. | 2" | 5" | 9-1/4" | 45070 ball mount, 40047 RockerBall, 22321 anti-rattle |
| Standard Starter Kits | ||||||
| 45534 | 2" | 7,500 / 750 lbs. | 2" | 2" | 8-1/4" | 45030 ball mount, 40037 trailer ball, 23515 hitch lock, 22272 hitch tube cover, 21500 pin & clip, case |
| 45554 | 2" | 7,500 / 750 lbs. | 2" | 4" | 8-1/4" | 45050 ball mount, 40037 trailer ball, 23515 hitch lock, 22272 hitch tube cover, 21500 pin & clip, case |
| Part # | Shank Size | GTW / TW | Ball Diameter | Drop | Length | Included Parts |
|---|---|---|---|---|---|---|
| 45143 | 2" | 7,500 / 750 lbs. | 2" | 3" | 8-1/4" | 45050 ball mount, 40047 RockerBall, 22323 anti-rattle pin |
| 45144 | 2" | 7,500 / 750 lbs. | 2" | 5" | 9-1/4" | 45070 ball mount, 40047 RockerBall, 22323 anti-rattle pin |
| 45149 | 2" | 7,500 / 750 lbs. | 2-5/16" | 1" | 7-1/2" | 45820 sway tab ball mount, 40248 RockerBall |
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