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  1. Trailer Hitch Ball
  2. CURT
  3. Trailer Hitch Ball
  4. 2-5/16 Inch Diameter Ball
  5. 1 Inch Diameter Shank
  6. Standard Ball
2-5/16" Hitch Ball - 1" Diameter x 2-1/4" Long Shank - Chrome - 10,000 lbs

2-5/16" Hitch Ball - 1" Diameter x 2-1/4" Long Shank - Chrome - 10,000 lbs

Item # C40007
Our Price: $25.85
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Trailer Hitch Ball
Shipping Weight: 3 lbs
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Durable steel ball has a 1" diameter x 2-1/4" long shank. Built-in wrench flats ease installation. Chrome finish resists corrosion. Fine threads provide strong grip. Lock washer and nut included. Great Prices for the best trailer hitch ball from CURT. 2-5/16" Hitch Ball - 1" Diameter x 2-1/4" Long Shank - Chrome - 10,000 lbs part number C40007 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (3538)
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  • Videos (2)
  • Photos

CURT Trailer Hitch Ball - C40007

  • Trailer Hitch Ball
  • 2-5/16 Inch Diameter Ball
  • 1 Inch Diameter Shank
  • Standard Ball
  • 10000 lbs GTW
  • Class III
  • Chrome-Plated Steel
  • CURT
  • 2-1/4 Inch Shank Length

Durable steel ball has a 1" diameter x 2-1/4" long shank. Built-in wrench flats ease installation. Chrome finish resists corrosion. Fine threads provide strong grip. Lock washer and nut included.


  • Hitch ball provides a connection point for your trailer's coupler
  • Fine threads provide tight, strong grip
  • Heat-treated steel is durable
  • Corrosion-resistant chrome finish
  • Built-in wrench flats make it easy to hold ball in place while tightening the nut
  • Lock washer and nut included


  • Ball diameter: 2-5/16"
  • Shank dimensions: 1" diameter x 2-1/4" long
  • Weight capacity: 10,000 lbs
  • Fits ball mount platforms at least 3/8" thick
  • 1-Year limited warranty

40007 Curt 2-5/16" Hitch Ball with Medium Shank - 10,000 lbs GTW - Chrome

Video of 2-5/16" Hitch Ball - 1" Diameter x 2-1/4" Long Shank - Chrome - 10,000 lbs

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Curt 2-5/16" Chrome Hitch Ball Review

What's up everybody It's AJ with Today we're gonna be checking out this CURT hitch ball. This is gonna be going on a ball mount platform, so you can hook up your coupler to it. Let's check it out. It's gonna be a two and 5/16-inch ball. It's gonna have an inch-thick shank diameter here, so you just drop that through the platform to attach it.

You got the lock nut and the regular nut right at the bottom. Now I'm just gonna do it hand-tighten right now. When you get this, you're gonna wanna make sure this is torqued to the specifications required. You can't just leave it loose in here and tow your trailer. You want to make sure it's really tight and torqued down before you hook up to go.

So we'll get this tightened down by hand. Now you can either do it this way or upside-down, depending on if you want to rise or drop. Either way, it's gonna work the same way. It's gonna have a weight capacity or a trailer weight rating of 10,000 pounds. It's gonna have a tongue weight rating of 1,000 pounds.

So just keep that in mind with what you're wanting to haul. Looking closer at the base here, you'll see these flat sides on the side of the ball. That's gonna be good for putting your wrench there. So when you go to torque down the bottom here, you can know you get a nice hold on it to get it really tight, to get to the specification you need to. It's gonna have a chrome-plated finish with a nickel alloy coating on the outside.

So when you leave it on the back of your vehicle all the time, the elements aren't gonna bother it. Overall, this is gonna be a good hitch ball to add to your ball mount. Just make sure that you get that shank diameter right so it's gonna fit in there, and check your trailer coupler to make sure you need that two and 5/16-inch ball. Well, here that does it. Thanks for hanging out and hope this helps.

Customer Satisfaction Score:

Customer Reviews

2-5/16" Hitch Ball - 1" Diameter x 2-1/4" Long Shank - Chrome - 10,000 lbs - C40007

Average Customer Rating:  4.9 out of 5 stars   (3538 Customer Reviews)

Durable steel ball has a 1" diameter x 2-1/4" long shank. Built-in wrench flats ease installation. Chrome finish resists corrosion. Fine threads provide strong grip. Lock washer and nut included.


It is as described on etrailer and looks to be of good quality. Dealing with etrailer was, as always, pleasant. Kelly, was very helpful!


Product was as expected.


Works as it should


Needed a 12" drop hitch for my truck since it has quite a bit of lift. Not only did etrailer have the highest rated 12" drop hitch I could find but also the cheapest! I also ordered a 2 & 5/16ths ball that also rated at 10,000lbs. My boat and trailer loaded up is about 6500/7000 so this will def cover the pay load and then some. Shipping was very fast and everything was well boxed together. Would def recommend this company to anyone I knew.


This trailer ball is well made, the threads are cut nicely, and it fits the trailer hitch tightly. I gave it 4 start out of 5 because it does not have a terribly heavy trailer rating considering it is a 2 5/16 ball. I understood this when I ordered it, as my trailer isn't that big, and I needed a ball with a 1 inch shank. I received very good help from the salesperson on the phone, in getting my order together. All in all a good experience.
PS Quality wise, for a 10,000# ball, this should probably be 5 start, but I gave it 4 stars because most 2 5/16 hitches are rated for far more than that, and for a bigger trailer, I wouldn't want the ball to be the weak link.

Jerome B.


Working great


The ball, ball mount and pin and clip all function nicely. The Brake controller along with the wiring harness were very easy to install. Controller applies trailer brakes smoother and more effectively than any I've ever had. Order process was easy and shipping was prompt. Very Satisfied.


Used it with maxx tow adjustable height ball mount hitch also ordered from etrailer. It worked well with no issues. Came in very handy when needed. Free shipping was a big plus.


Received my 12" drop and ball about two weeks ago, the shipping was phenomenal ! They got it to me in two days on standard shipping. The drop works great with my 8" lift on my f250. Town straight as a arrow, and the cushion mount Smith's out any trailer slam I have felt with in the past.


Fit the Brophy class IV 10” drop hitch I ordered with it perfectly.


I purchased these items one week before a Thanksgiving camping trip. I recently bought a new camper and forgot that I needed a 2 and 5/16 ball with a hitch that supports my trailer sway system. I picked 5 to 7 day shipping (foolish) and was pleased when my order was upgraded to 3 to 5 day express shipping FREE. Everything arrived 3 days before our trip and worked perfectly.

Great products and great customer service. Happy Thanksgiving to all ...


Used it to tow an empty 2500lb utility trailer with my Subaru Outback from CO springs to New Mexico. Worked great on the 380 mile trip, no problems, very heavy duty construction.


I needed a 2 5/8" hitch ball with a 1" shank to fit my truck and trailer. None of the local stores carried this combination. Your store had just what I wanted and the price with shipping was no more than picking one up in the store. Your on line order process was simple and I had my equipment in just a few days! I will shop here again if I have a need.


All of the products are High quality, what I expected them to be. But even better, they came with-in a 24 hour period, and that was the best part of it all, because I was not expecting the parts to arrive until at least 5 days. As I said on my earlier review, I had searched around my town where I live, and could not find an inexpensive towing ball in the size that I needed for the right price, nor the friction sway control kit, and one could just forget about finding a sway control bracket. Thanks, again etrailer for such great service, which I truly thought, didn't exist anymore.


This is actually the second order I have placed and normally I don't do surveys or reviews but the quality of the parts is outstanding and both orders were delivered with in in three days. I am a first time trailer owner and picked up my trailer yesterday all of the parts fit perfect and look great. The thing I really appreciate are the step by step installation videos.


What I wanted


I purchased this ball to go with the AMSC 12 cushioned ball mount I purchased at the same time. I was tipped by other reviewers that this ball had a 1# shank and would be difficult to purchase elsewhere being a 2 5/16# ball rated at 10,000 lbs. I won't be using it for another month or so but glad I have it on hand so it will be there when I need it. Thanks to your other reviewer for this info


Perfect. Correct hitch ball for my horse trailer thanks to these guys. Thanks for making me feel I am towing my precious cargo as safely as possible.


Landed on my doorstep less than 72 hours late w free shipping. Can't ask for much more and the Curt 2 5/16" ball replaces a 15 y/o ball so I'm good for another 15+. Can't go wrong with either Curt or etrailer. Thx again.


One of the few hitch balls rated at 10,000lbs... and my new trailer weighs in at 9600. Mounted cleanly. We'll find out how it works when we pick up the trailer on Saturday.


I received my order very quick and all items are just as advertised. I will defantly order from e-trailer again. Prices are ok too. I am impressed with the product lines they offer.
I'll be in the market for one or two trailer brake controllers very soon.


The Curt chrome Hitch Ball 2-5/16 - 10,000 pounds with a 1 inch shaft fits perfectly in my current 10,000 pound receiver. I am towing a 8,500 pound load with an Atwood Coupler. The coupler and ball fit each other without any problems.


Paula and etrailer are great! I needed a higher rise hitch and Paula was great to help me return the one I purchased and get the right one ordered!!!! Thank you!!!


Upgraded the trailer and needed new 2 5/6" hitch ball but have ball mounts with 1" diameter hole. This ball has 10K pound rating with the 1" diameter shank.


Bought this ball to go with the BM20 hitch and it is as advertised. What else can you say about a hitch ball :)


Ordered ball and new long ball mount so that I could pull my trailer with my overhead camper on truck. Ordered on a Sunday received both pieces on Wednesday shipped very quickly, both were just as advertised couldn't be happier. Would use again and recommend to everyone. Thanks Ken

Show More Reviews

See what our Experts say about this CURT Trailer Hitch Ball

  • How Tight Should Nut be On Curt Hitch Ball # C40007
    Looks like you have the wrong tag on your hitch ball part # C40007. The tag that it should have came with is supposed to read 250 ft lbs. If you watch the review video I attached for this ball you'll see our reviewer reads from the tag that it requires 250 ft lbs.
    view full answer...
  • Can My 2007 Honda Odyssey Tow a 1500 Lb Empty Trailer With a 2-5/16" Ball?
    Your 2007 Honda Odyssey has a towing capacity of 3500 lb, so you should have no issues towing a 1500 lb empty trailer with a standard 2-5/16" ball like # C40007.
    view full answer...
  • How to Find a Ball Mount with the Right Rise or Drop to Tow a Trailer Level with a Ford F-150
    Yes, it is likely supposed to be 2-5/16 since there isn't a 2-5/6 option. In order to choose the best ball mount for your new Ford F-150 and motorcycle trailer you will need to do just a little measuring. You want to be able to tow the trailer level so you have to measure for the rise or drop needed to do so. Measuring is easy. Park the truck and the trailer on level ground. Measure from the ground up to the top of the trailer hitch receiver opening. Then use the trailer jack to make the...
    view full answer...
  • Will the Curt Chrome Hitch Ball # C40007 Fit a 3/8 Inch to 7/8 Inch Thick Ball Mount Platform
    Yes, the Curt Chrome Hitch Ball, # C40007, will just barely fit on a ball mount platform that is 7/8 inch thick. If your ball mount is 7/8 inch thick, you will have 2 or 3 threads showing past the nut, but the nut would fully engage the threads on the hitch ball shank.
    view full answer...
  • What Size Wrench Is Needed For The Nut On The Curt Hitch Ball C40007
    The Curt hitch ball # C40007 has a 1" diameter shank. Curt Hitch balls with a 1" shank will use a 1-1/2" wrench for the nut. You would also want to use a 2" wrench for the flats on the base of the ball. We offer the 6-point hex wrench # C20001 which can be used for hitch balls with either a 1" diameter or 3/4" diameter shank.
    view full answer...
  • Hitch Ball for Custom Application on a Komatsu Dozer
    Since this is such a custom application, you will most likely need to fabricate something as we don't have a specific adapter. You may be able to put a 2-5/16 inch hitch ball like Curt Chrome Hitch Ball # C40007 in the upper hole of the clevis hitch on your Komatsu Dozer if the pin hole is big enough for the shank of the ball. The hitch ball shank is 1 inch in diameter and is 2-1/4 inches long. The only other suggestion would be to try to weld a combo bar like Curt Combo Bar with 2 Inch...
    view full answer...
  • Will the Reese Sway Control Bracket Fit a 2-5/16 Inch Hitch Ball
    The Reese Sway Control Bracket, # RP26003, will work with 2-5/16 inch hitch balls as long as the shank of the hitch ball is no larger than 1 inch in diameter. The ball hole of the Reese bracket has a 1 inch diameter. If your current hitch ball has a shank with a diameter larger than 1 inch, then I would recommend picking up the Curt 2-5/16 inch hitch ball, # C40007, with the sway control bracket.
    view full answer...
  • Hitch Ball Recommendation Made in America
    I believe I have something that will work for you, but the Curt Hitch Ball # C40007 that you referenced is not made in the USA, it is made in China. You might be interested in a Convert-A-Ball Interchangeable Ball Set # 904B. This product is made in the USA and comes with an interchangeable hitch ball that will give you the option to easily change between a 2 inch and a 2-5/16 inch ball.
    view full answer...
  • Ball Mount Recommendation that is 12 inches Long and 12 inches of Drop
    12 inches long or 12 inches of drop? For a 12 inch drop ball mount we have the # AMSC12 which also happens to have a distance of 12-1/2 inches from the center of the ball hole to the center of the pin hole. Then for a hitch ball you would want the part # C40007 for a 2-5/16 inch.
    view full answer...
  • Sway Control Bracket to Fit 2-5/16 Inch Hitch Ball with 1 Inch Diameter Shank
    The sway control bracket you're looking for is # RP26003. This fits a 1 inch diameter hitch ball which you can use # C40007 for a 2-5/16 inch ball. I've linked a video of the bracket being installed.
    view full answer...
  • 2-5/16 Inch Ball Recommendation for Ball Mount BM20
    The ball mount part # BM20 that you referenced has a 1 inch diameter hole for a hitch ball to fit. Because of that the part # C40007 would be the correct 2-5/16 inch ball for it.
    view full answer...
  • Trailer Hitch Ball For 2020 Jayco White Hawk 23MRB
    For your 2020 Jayco White Hawk 23MRB you will need a 2-5/16" hitch ball, and the right one will depend on the diameter of the hole of your ball mount: - 1" Diameter: 2-5/16" Hitch Ball # C40007 - 1-1/4" Diameter: 2-5/16" Hitch Ball # A-6
    view full answer...
  • Ball Mount Recommendation for a Trailer that Needs a 1-1/4 Rise To Tow Level
    If you can get the ball mount within a 1/2 inch or so of what you would need to be perfectly level you would be just fine. Since you need 1-1/4 inches of rise to tow level a 2 inch rise would be perfect since there is bound to be a bit of rear suspension sag when you hitch up to your trailer. For a ball mount then I would recommend the # C45230 and then for a hitch ball # 40038 for a 2 inch ball or part # C40007 for a 2-5/16 inch ball. I attached the help article you referenced on selecting...
    view full answer...
  • Smallest Diameter Shank For 2-5/16" Trailer Hitch Ball
    The smallest diameter shank for a 2-5/16" hitch ball is a 1" shank like for the 2-5/16" Hitch Ball # C40007. Hitch balls with 3/4" diameter shanks are all either 2" or 1-7/8" hitch balls, so if you need to use a 2-5/16" hitch ball and your ball mount has a 3/4" diameter shank you'll need a new ball mount to go with the # C40007, like the Curt Ball Mount for 2" Hitches - 2" Rise, 4" Drop. # C93KR. That depends on the rise or drop you need, so I've added a link below to our entire selection...
    view full answer...
  • 2 inch Rise Ball Mount Recommendation that is 10 inches from Ball Hole to Pin Hole
    The part number # C45230 would be your best option. This ball mound will do 2-3/8 inches of rise which would be close enough for your setup most likely when you take into account a bit of sag from the weight of your trailer's tongue weight. The ball mount is 10-1/4 inches from the center of hitch pin hole to center of ball hole as well. For a 2 inch ball the part # 40038 would be what you need and for a 2-5/16 inch ball part # C40007.
    view full answer...
  • Hitch Ball Recommendations for Use with Curt Channel Style Adjustable Ballmount # C45901
    For hitch balls for use with the Curt Channel Style Adjustable Ballmount # C45901 that you referenced you'd want to go with shank diameter of 1 inch and a length of at least 2-1/8 inch. For a 2 inch ball we have the part # 63845 or for a 2-5/16 inch ball you'd want # C40007.
    view full answer...
  • Recommended Hitch Ball for Brophy Ball Mount BM20
    The Brophy Ball Mount part # BM20 has a 1" diameter ball hole so you will need to use a hitch ball with 1" diameter shank, the Curt Hitch Ball part # 40038 for 2" or part # C40007 for 2-5/16".
    view full answer...
  • Ball Mount Platform that Can Fit Weight Distribution Shank
    We have the Convert-a-Ball part # BA-1 which is a ball mount platform that fits standard weight distribution shanks like your Equal-i-zer shank. Then for a 2 inch hitch ball that would fit this you'd want the part # 40038 or part # C40007 for a 2-5/16 inch ball.
    view full answer...
  • What Hitch Ball Shank Length is Needed for Aluminum Andersen Alumistinger Ball Mount
    The Andersen Alumistinger Ball Mount for 2" Hitch - 1" Rise, 2" Drop - 7" Long - 8K # AM3503 has a 1 inch diameter hitch ball hole and will require a hitch ball with at least a 2-1/8 inch length. I recommend the Curt # 40038 for a 2 inch ball or the Curt # C40007 for a 2-5/16" hitch ball. Both of these have a 2-1/4 inch length and are rated higher than the ball mount.
    view full answer...
  • How to Determine the Amount of Drop Needed When Purchasing a Ball Mount
    To determine the amount of drop you need in a ball mount you need to have your trailer and tow vehicle on level ground and measure from the ground to the bottom of your coupler, and from the ground to the inside of the top of your hitch receiver. I've attached a couple of pictures to help show this. Since you measured from the bottom of each you're likely going to need more than 10 inches drop. You'll likely need around 12 inches or so like the Convert-A-Ball, part # AMSC12. If you...
    view full answer...
    Image 1 for Image 2 for
  • Determining Rise Or Drop Of Ball Mount To Tow Level With Truck that Sits Up High
    It sounds like you need a ball mount with a drop to tow level with your trailer since your truck sits up higher. To figure out how much drop, you want to measure from the top of the receiver hitch on the truck to the ground. Then measure from the bottom of the coupler on the trailer to the ground. The difference between those two numbers is the amount of drop you need. Since I am not sure of the truck measurement I cannot tell you how much drop you need at this time. I have attached a helpful...
    view full answer...
  • Can I Use a 2-5/16" Hitch Ball for Towing with a Stealth Hitches Hidden Receiver
    The ball mount that comes with the Towing Kit w/ Ball Mount and Trailer Wiring for Stealth Hitches Hidden Rack Receiver # 391CONVD5 will accommodate a 2-5/16" hitch ball that has up to a 1" diameter shank like what we see with the Curt Hitch Ball # C40007. The Stealth Hitches kit only comes with a 2" hitch ball but you can definitely swap it out for a larger hitch ball like you asked about. Be sure to only tow with the specialized ball mount from Stealth Hitches. When they did their testing...
    view full answer...
  • Can Weight Distribution Shank be Used Like Standard Ball Mount
    We have the Convert-a-Ball part # BA-1 which is a ball mount platform that fits standard weight distribution shanks like your Blue Ox SwayPro weight distribution. Then for a 2 inch hitch ball that would fit this you'd want the part # 40038 or part # C40007 for a 2-5/16 inch ball.
    view full answer...
  • Reese or Curt Weight Distribution For 2020 Coachmen 187RB
    For your 2020 Coachmen 187RB with a 3,800 lb GVWR, the issue with the Curtis its tongue weight rating is for 600 lbs, and your Coachmen may not hit that rating. That would result in a very choppy ride, so the best option is indeed to go with the Reese Weight Distribution System # RP66558. This has a tongue weight rating of between 400 lbs and 600 lbs, which your Coachmen will definitely fall in so this will work for you. This comes with everything you need for install except the hitch...
    view full answer...

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