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  1. Trailer Hitch Ball
  2. CURT
  3. 2-5/16 Inch Diameter Ball
  4. 1 Inch Diameter Shank
  5. Shock Absorbing Ball
  6. 7500 lbs GTW
Curt RockerBall Shock Absorbing 2-5/16" Hitch Ball - 1" Diameter Shank - Chrome - 7.5K

Curt RockerBall Shock Absorbing 2-5/16" Hitch Ball - 1" Diameter Shank - Chrome - 7.5K

Item # C82KR
Our Price: $73.95
You Save: 33%
Trailer Hitch Ball
Shipping Weight: 7 lbs
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Curt RockerBall with ShockDrop technology bolts onto your standard ball mounts to provide comfort and control while towing. Chrome ball has a 1" diameter shank. Anti-swivel, forged steel base has black powder coat finish. Great Prices for the best trailer hitch ball from CURT. Curt RockerBall Shock Absorbing 2-5/16" Hitch Ball - 1" Diameter Shank - Chrome - 7.5K part number C82KR can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (101)
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CURT Trailer Hitch Ball - C82KR

  • 2-5/16 Inch Diameter Ball
  • 1 Inch Diameter Shank
  • Shock Absorbing Ball
  • 7500 lbs GTW
  • Chrome-Plated Steel
  • CURT

Curt RockerBall with ShockDrop technology bolts onto your standard ball mounts to provide comfort and control while towing. Chrome ball has a 1" diameter shank. Anti-swivel, forged steel base has black powder coat finish.


  • Hitch ball provides a connection point for your trailer's coupler
    • Fits most existing ball mounts
  • Integrated ShockDrop technology
    • 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
  • Fine threads provide tight, strong grip
  • Anti-swivel base is constructed of forged steel for dependable towing power
  • Durable carbide black powder coat finish on base
  • Corrosion-resistant chrome finish on ball
  • Virtually maintenance-free with no airbags or bearings to service
    • Built-in grease zerk makes it easy to lubricate when necessary
  • Tested for safety to meet SAE J684 specifications
  • Lock washer and nut included


  • Ball diameter: 2-5/16"
  • Shank diameter: 1"
  • Weight capacity: 7,500 lbs
  • Rocker base dimensions: 2-1/2" long x 2-1/2" wide
  • 1-Year limited warranty

Note: All RockerBall hitch balls will sit 1-1/2" higher than a standard hitch ball due to the shock absorbing base.

The mounting platform on your ball mount must be at least 3/8" thick and the hole size must not be more than 1/16" larger in diameter than the ball's threaded shank.

Towing can be brutal, especially when your setup is outfitted with standard, metal-on-metal components. Steel and aluminum can only absorb so much vibration and chucking, so every time you hit a bump in the road, that shock gets transferred to the rest of your rig, leaving it vulnerable to wear and tear. Another unfortunate side effect is an uncomfortable ride for you and your passengers.

Protect your truck and trailer from road shock, vibrations, and rattling - and stay comfortable while you drive - with the shock-absorbing Curt RockerBall hitch ball.

Shock Absorbing ShockDrop Technology

Curt RockerBall with SockDrop Technology

The RockerBall hitch ball features Curt's innovative ShockDrop technology, which is engineered to suppress vibrations and rattling while you're towing. When you hit a bump, the ball compresses around the flexible, polyurethane core. This durable material absorbs excess shock at the coupling point so that it doesn't transfer from the truck to your trailer or vice versa. The result is increased control and comfort as you tow, as well as less wear and tear on your towing setup.

Premium Construction

Curt RockerBall Construction

This hitch ball is built to last with its forged steel construction and durable powder coat finish. The flexible, shock-absorbing polyurethane core withstands extreme heat for long-lasting performance, and the chrome-plated ball resists corrosion.

Curt RockerBall Zerk Fitting

The built-in zerk allows you to lubricate the isolator core when necessary, ensuring quiet and trouble-free operation.

40248 Curt Rocker Ball with Shock Drop Technology - 2-5/16" Trailer Ball - Chrome - 7,500 lbs

Installation Details C82KR Installation instructions

Customer Satisfaction Score:

Customer Reviews

Curt RockerBall Shock Absorbing 2-5/16" Hitch Ball - 1" Diameter Shank - Chrome - 7.5K - C82KR

Average Customer Rating:  4.6 out of 5 stars   (101 Customer Reviews)

Curt RockerBall with ShockDrop technology bolts onto your standard ball mounts to provide comfort and control while towing. Chrome ball has a 1" diameter shank. Anti-swivel, forged steel base has black powder coat finish.


This hitch ball works great no slamming back & forth when stopping are starting. Just the right height for my F150 with a 4 inch curt drop receiver. I would definitely purchased again. Ran it with an unloaded trailer & a trailer with weight around 2500 lb. You want be disappointed in the purchase.


Greatest difference is felt with a full trailer vs empty. For reference, I haul a 3700 horse trailer and with one or two horses on board, this makes a noticeable difference in the reduction of ‘jolts’ when road seams, potholes are encountered. No noticeable difference when empty, but I am rarely empty. Good value for outcome.


love using the rocker ball


I thank it is everything that it should be. Works great


Works great, it's a noticeably smoother ride than other hitch balls I've used.


It looks like a quality product, but after buying 3 different drop hitches for my truck it doesn't look like I will ever find one that it will fit on............. so I just bought a stainless ball and went on. Makes for a nice $[XX] paperweight or conversation piece.


Was impressed when I used it, then I had my son move the truck while I watched and saw the movement, great product


It does seem to make a smoother ride. I tow a 20 foot cargo trailer which gets quite heavy at times.


I purchased this to test out. I’m using it on a Ford Ranger and towing a 6x16 enclosed trailer. Curt makes great products I’m sure it won’t disappoint.


Best ball on the market





I just purchased a new hideaway hitch system. But the hitch sits only 15 inches off the ground at best. And, my trailer coupling is 22-23 inches off ground. So l needed 7-8 inches of rise on the new 1.25 inch receiver system.

Internet research took me to etrailer and the Brophy hitch. I got 5.5 inches with the Brophy hitch, the highest available for a 1.25 inch receiver I could find. The others are limited to 5 inches max. I added another 1.5 inches with your Curt shock absorbing hitch. Voila, with a combined 7 inches of rise and on level ground the trailer now rides perfectly level!!!! Both parts were very easy to connect.

Delivery was speedy. Thank you for saving the day and my investment in an expensive new hideaway hitch!


I received my order one day late but everything turned out good and I already tried out the ball hitch and lock assembly and seems to tow pretty good so far


Somewhat disappointed in Curt with this product and I have always been a big Curt fan. The first one of these I ordered was the listed 3" drop unit. The base of the rocker ball is almost 1 7/8" tall so on a 4 inch drop ball mount its really only a 2 inch drop hitch so be aware when ordering. I had to send the first back and reorder the larger drop unit. When I received the larger drop unit I put it in the receiver like many other hitches I have used and proceeded to properly torque the ball down. Because the rocker ball has a pivot point its very important that it stay parallel to the receiver. Curt includes a sheet metal plate that shims in between the ball mount and the ball to prevent it from turning. The plate is no where near strong enough though and at 224 ft/lb the plate bent and the ball rotated. After the plate is bent it is almost impossible to get he thing torqued down right and lined up.


Drove from San Diego to Alaska - smooth ride w/trailer...


This all-in-one kit does everything it promises to do. I wish I'd learned about it sooner.


Kimberly, our Sales rep, was incredibly patient and amazing and guided us through our options and availability. The products arrived on time and as expected. In a world of choices you all went above and beyond any expectations.


Like most any lock they can be a little temperamental after being out in weather a while, but a shot of lock lube or WD40 takes care of that. "Training the lock to your given key is a breeze, and I definitely like the convenience of not having to try and recall which key is needed to use them!


Just received it. I haven't had a chance to use it yet, but the quality is excellent!


makes for a better ride for sure !!


Fast Service. Excellent quality


We have a small trailer pulling behind an SUV. This really cuts down the rocking as we drive.


Received product before due date however, both our WD Hitches do not have the standard piece to allow the Anti-Rotation Plate to be useful. Pictures attached.
Checking with etrailer to see what can be done before modifying either the ball or the hitches. Only other issue was packaging, it was well packed on bottom side but not on top which allowed the product to distort the box it was shipped in but it did come fully in tact with no visible harm. Mentioning this for future delivery of such items.

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