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  1. Trailer Hitch Ball
  2. CURT
  3. Trailer Hitch Ball
  4. 2 Inch Diameter Ball
  5. 1 Inch Diameter Shank
  6. Standard Ball
2" Hitch Ball - 1" Diameter x 2-1/8" Long Shank - Chrome - 6,000 lbs

2" Hitch Ball - 1" Diameter x 2-1/8" Long Shank - Chrome - 6,000 lbs

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Trailer Hitch Ball
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Shipping Weight: 2 lbs
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Durable steel ball has a 1" diameter x 2-1/8" long shank. Built-in wrench flats ease installation. Chrome finish resists corrosion. Fine threads provide strong grip. Lock washer and nut included. Lowest Prices for the best trailer hitch ball from CURT. 2" Hitch Ball - 1" Diameter x 2-1/8" Long Shank - Chrome - 6,000 lbs part number C40004 can be ordered online at or call 1-833-496-1390 for expert service.
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CURT Trailer Hitch Ball

  • Trailer Hitch Ball
  • 2 Inch Diameter Ball
  • 1 Inch Diameter Shank
  • Standard Ball
  • 6000 lbs GTW
  • Class III
  • Chrome-Plated Steel
  • 2-1/8 Inch Shank Length
  • CURT

Durable steel ball has a 1" diameter x 2-1/8" 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 exceptionally tight, strong grip
  • Durable steel construction
  • 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"
  • Shank dimensions: 1" diameter x 2-1/8" long
  • Weight capacity: 6,000 lbs
  • Fits ball mounts 1/2" to 1" thick
  • 1-Year limited warranty

40004 Curt 2" Diameter Hitch Ball with Medium Shank - 6,000 lbs GTW - Chrome

Item # C40004

Video of 2" Hitch Ball - 1" Diameter x 2-1/8" Long Shank - Chrome - 6,000 lbs

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

Video Transcript for Curt Hitch Ball - Trailer Hitch Ball - C40004 Review

Today, were going to take a look at the Curt Two Inch Hitch Ball, part number C40004. This chrome ball is two inches in diameter. It has a shank diameter of one inch, a shank length of 2-1/8 inches. It is intended for a ball mount with a draw bar thickness of half an inch to one inch, and has a weight capacity of 6,000 pounds. It comes with everything you see here, including the nut and washer. Were going to show you how you would install this using one of our ball mounts and using our trailer hitch demonstrator.

You would just slide the shank into the ball hole of the ball mount. Also you can see, we have the wrench flats here, to make it easier to tighten. You would take your washer, slide that on first and take your nut, and slide that on, finger-tighten it. Then once youre done with that, you could use the wrench flats here to hold that while using another wrench to tighten that fully, and then youre ready to tow your trailer. That should about do it for our Curt Two Inch Hitch Ball, part number C40004.


Customer Reviews

2" Hitch Ball - 1" Diameter x 2-1/8" Long Shank - Chrome - 6,000 lbs - C40004

Average Customer Rating:  4.9 out of 5 stars   (3002 Customer Reviews)

Durable steel ball has a 1" diameter x 2-1/8" long shank. Built-in wrench flats ease installation. Chrome finish resists corrosion. Fine threads provide strong grip. Lock washer and nut included.


Looks like a good quality tow ball. I'll never be able to tell you though. I cut the shank off to build my own trailer coupler lock for cheaper than a purpose built coupler lock. This ball plus the e98883 coupler pin lock makes my trailers secure in my yard as well as anywhere we go. And by buying enough keyed-alike coupler pin locks, one key fits all trailers unlike previous setups I tried where each coupler lock had its own key.


Works great, and the low profile keeps it out of the way. The adaptor cable made it plug and play for my 2021 Nissan Frontier.


You guys are always helpful with asking the right questions and providing the right product.


Proud to put crome ball hitch on my veh icle


This pic makes the ball look like it's not chrome,,,, it is actually very shiny chrome and fit my setup great for my 2008 Honda Element SC


Fit and finish is as expected. It's new and I can't comment on how the chrome finish will hold up . Threads are clean and the nut goes on smoothly. Chrome lock washer compressed nicely with no chrome flaking.


Works well and is not very visible at all. Happy purchase.


Too large to fit in the above drawbar

Thank you for your review. The ball mount you ordered, Item # 3605336053, has a ball hole diameter of 3 quarter inch. Whereas, the hitch ball you ordered, Item # C40004, has a shank dimension of 1 inch diameter. The hitch ball you needed is here: Item # C40018.
-- Etrailer Expert Sierra K - 09/10/2021


Good price


I am very pleased. The guides arrived very quickly -like two days -and were easy to install.
I have ordered everything for my used trailer including spare tire, trailer hitch receiver and the ball mount. The ball mount gave me an 8in rise which is what I needed for my Toyota Tacoma.
Etrailer follows up and does a great job.


5 Stars. etrailer is the best ever.


Towing a 20Ft. Ranger Bass Rig with no issues after 1 year. Strong Hitch and


Purchased trailer hitch, ball, and lock pin. Needed a 9 1/4 " drop. etrailer had the parts in stock at competitive prices. ordered on a Sunday arrived Wed noon. Great response time on any items I have ever ordered. I like these folks!


Drawtite trailer hitch was easy, one person install


Great hitch, but needed a bigger wrench to torque this puppy.


Works as expected, no complaints.


George and the team at etrailer did a fantastic job getting me this hitch ball - in time to take the boat and enjoy the weekend. OUTSTANDING SERVICE!! Nicely done! Thanks. Kurt


According to my mechanic wiring harness went in with no problems.


great product. my new frontier came with a hitch with no ball. this is the 2" ball I was looking for, tightened it to 250 and now I am ready. fast delivery, good quality and great price.


Everything still works a year later and quality is holding up.

I am BEYOND impressed with etrailer's customer service. Both at the date of purchase and now reaching out a year later. I’ll never buy anything for a trailer anywhere but etrailer.


Bought a number of Items to add a trailer hook up to my 2017 Nissan quest. Jason was very helpful with all the different Items I purchased. i recommend buying from etrailer.


Everything came as described, and I am so happy with the products and service! is my definite go to!!!


Nice trailer hitch ball. Less than big box store price and name brand rather than nameless.


this product is to large for the hitch. needs 3/4in dia shank.

For the same sized ball with a 3/4 inch diameter shank thats 2-1/8 inches in length, youd want to use # A-82.
Mike L - 06/19/2018


Very pleased with the quality finish on this Curt product. eTrailer staff is friendly and helpful. They provide unbelievable fast shipping. Great business to deal with.

Show More Reviews

See what our Experts say about this CURT Trailer Hitch Ball

  • Hitch Ball Size Needed for 6,000 Pound Custom Flat Bed Trailer
    To determine what size hitch ball you will need to pull your custom flat bed trailer, you will just need to look at the coupler on the trailer. Typically, the size hitch ball needed will be stamped into the coupler's metal housing or listed on a safety sticker. Once you find the hitch ball size you need, you will also need to check the ball shank diameter to ensure that it will fit the ball hole on your ball mount. Lastly, you will just choose a hitch ball that has at least a 6,000 pound...
    view full answer...
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  • Socket Size Needed for the 2" Hitch Ball Part # C40004
    In order to torque down the 2" Hitch Ball part # C40004 to 250 ft. lbs. you will need to use a 1-1/2" socket. You can then use an adjustable crescent wrench to hold the hitch ball in place while you are torquing down the nut.
    view full answer...
  • Does Hitch Ball Height Factor in to Determining Rise/Drop Calculation for Picking Out Ball Mount
    When determining rise you don't need to factor in the height of the hitch ball unless it's a high rise ball. The rise calculation is done by taking the measurement from the top of the hitch opening down to the ground and comparing it to the distance from the ground to the bottom of the trailer coupler when sitting level. In relation to the ball mount the dimension would be from the bottom of the ball mount platform to the top of the shank of the ball mount like in the picture I attached. An...
    view full answer...
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  • Does 2 Inch Hitch Ball and 1-7/8 Inch Hitch Ball Use Same Size Nut
    So long as the hitch balls have the same diameter shank then they will use the same size nut. For example, the 1-7/8" Hitch Ball # C40051 and 2" Hitch Ball # C40004 both have a 1" diameter shank so they will use the same nut.
    view full answer...
  • What Size Socket is Needed for the Nut on the Curt 2 Inch Hitch Ball 40004
    The 2" Hitch Ball - 1" Diameter x 2-1/8" Long Shank - Chrome - 6,000 lbs # C40004 will use a 1-1/2 inch socket like # ALL643210 or a wrench. If you aren't using a torque wrench, you will need to make sure that lock washer is fully compressed to ensure that nut has been tightened enough.
    view full answer...
  • What Size Wrench/Socket Fits Nut of Curt C40004
    The 2" Hitch Ball - 1" Diameter x 2-1/8" Long Shank - Chrome - 6,000 lbs # C40004 you referenced will use a 1-1/2 inch deep well socket.
    view full answer...
  • How to Determine Correct Rise/Drop for Ball Mount on 2022 Honda Palisade Limited
    The correct rise/drop for a ball mount on your 2022 Honda Palisade Limited depends on the trailer you will be towing. In order to determine this you will need 2 measurements. The first is the hitch height and the second is the coupler height. It is also worth noting that the rise and drop on the ball mount are measured from the top of the shank to the top of the ball platform. The hitch height is the distance from the ground to the top of the receiver opening. For the # C13427 that measurement...
    view full answer...
  • Height of Curt 2 Hitch Ball # C40004
    I went out to our warehouse to take a look at the Curt 2" Hitch Ball # C40004 that you referenced and I measured a height of 2-3/4" from the mounting base to the top of the ball. I have attached an image to assist. If this doesn't provide the height you need we also have the 2" ball available with an additional 1" rise with part # C40033 or an additional 2" rise with # C40034. These rise measurements would be added to the 2-3/4" height mentioned above.
    view full answer...
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  • Solution for Ball Mount to Move Trailer up Steep Driveway
    The best solution would for a ball mount to help you move your trailer up a steel driveway would be one with a good amount of rise. An adjustable ball mount would be the best for this, something like the Curt Channel Style Adjustable Ball Mount - 5-1/4" Rise, 6-3/4" Drop # C45901. I'm not sure what rise or drop you use now, but this would give you some additional rise and allow you to use the rise or drop you need for normal towing circumstances. For a hitch ball, depending on your trailer's...
    view full answer...
  • Are Safety Chains Required When Towing a Trailer or is the Hitch Ball and Trailer Coupler Enough
    When towing a trailer, you will always need safety chains or cables as required by law. This is so if the trailer coupler pops off the ball on your step bumper for some reason, it is still connected to the tow vehicle via the safety chains or cables until you can stop and remedy the problem. I recommend getting a couple of 27 inch Long Safety Chains with 11/16 inch Hook, # 2118-605-04. With these chains installed, you will not have to worry about losing your trailer or getting a ticket! I...
    view full answer...
  • Can I Replace the Bolt in My Surge Coupler to Secure it in Place?
    I have a solution for you. I went ahead and reached out to my contact at Dexter Axle, and they recommended replacing the surge coupler with a standard weld on or bolt on straight tongue coupler. This is the safest way. They could not confirm for sure whether drilling a hole/installing a bolt would affect the stability or strength of the coupler. For a standard coupler, I recommend the Channel Tongue Trailer Coupler # CT-3002-Z along with the 2" Hitch Ball # C40004. If you need a hitch...
    view full answer...
  • Ball Mount Recommendation Made by Reese with 6 inches Of Drop
    The Curt ball mount, part # C45070, would be the closest thing we offer to what you described. This ball mount is made by the same company as Reese so it is basically a Reese ball mount for all intents and purposes. The ball mount can do 6 inches of drop which is as close as we have to the drop you mentioned. Since typically the rear of a vehicle will sag slightly it's best to go slightly higher when picking out a ball mount than needed if the exact dimension isn't available. I attached...
    view full answer...
  • Hitch and Trailer Wiring Recommendation for 2020 Toyota RAV4 Adventure Series
    Both the Curt # C13416 and the Draw-Tite # 76201 are confirmed fits for all models of the 2020 Toyota RAV4. Both hitches are a concealed design, which means that the crossbar of the hitch is hidden behind the bumper, the only visible portion is the receiver tube and the safety chain hoops. Both hitches are very similar in appearance with the Draw-Tite model having a slightly higher capacity. If the extra capacity isn't a consideration, I'd choose the Curt model because the hitch is manufactured...
    view full answer...
  • How Much Ball Mount Clearance Is Acceptable For A Hitch Ball?
    An 1/8" of play is acceptable for the hitch ball. Especially with such a light weight hitch rating of the MaxxTow Adjustable-Height Ball Mount # MT70068 at 5,000lbs maximum. We do have bushings that can be used to allow balls to be used that are 1/4" different. Curt Reducer Bushing for Ball Mounts - 1" to 3/4" # C21100 Curt Hitch Ball Bushing - 1-1/4" to 1" # F-2 The 2" Hitch Ball # C40004 has a 1" shank that will fit your ball mount.
    view full answer...
  • Choosing Correct Ball Mount for Yakima Rack and Roll Trailer Towed by 2016 Lexus RX 450h
    The linked article on choosing a ball mount explains the measurement process we use, and you're correct that Yakima references the top of the coupler while we use the bottom. You'll measure from the ground up to the top of the level trailer's coupler, and from the ground to the top of the receiver opening. The difference between these is the amount of rise you need, about 3- inches. You can use fixed ball mount # 4285 for 3-inches of rise along with 2-inch ball # A-90. If you like you...
    view full answer...
  • Ball Mount with a 12 Inch Drop for a Motor Home Towing a Tow Dolly
    Drop is measured from the top of the receiver opening to the top of the other receiver opening in the case of a high-low adapter like # RM-048-6 which actually has a 6 inch drop. However, these adapters cannot be used with a tow dolly per the manufacturer specifications. What you can do is use a ball mount with 12 inches of drop, # AMSC12. For a ball mount drop is measured from the top of the receiver opening down to the ball platform like in the FAQ I have included. With this ball mount...
    view full answer...
  • Which Hitch Balls Work with the Draw-Tite Ball Mount Part # 2923
    Any trailer hitch ball that has a 1" diameter and at least 2-1/8" long shank will work with the Draw-Tite Ball Mount part # 2923. For a 1-7/8" hitch ball I recommend part # C40002, part # C40004 for 2", or part # C40005 for 2-5/16". I have also attached a selection of our hitch balls that will work with the above ball mount for you. To protect your ball mount/hitch ball, I recommend using the Trailer Hitch Receiver Lock part # e98880.
    view full answer...
  • Recommended 6 Inch Drop Ball Mount with Extended Length for a 2 Inch Trailer Hitch Receiver
    I recommend using the Curt Ball Mount part # D-28 which has a 6" drop. We do not have a 2" ball mount that offers exactly 6-1/2" of drop with an extended shank but since the vehicle will squat a bit while attached to the trailer, the 1/2" difference will not be an issue for you. This ball mount slides into a 2" receiver tube opening and works with hitch balls that have a 1" diameter shank. If you need a hitch ball I recommend using part # C40002 for 1-7/8", part # C40004 for 2", or part...
    view full answer...
    Image 1 for
  • Most Cost Effective Trailer Hitch and Wiring for a 2016 Jeep Cherokee Latitude
    The least expensive trailer hitch option for your 2016 Jeep Latitude is the Curt Trailer Hitch Receiver Class III - 2" # C13172. It is a solid choice as well. I have attached our Best 2016 Jeep Cherokee Trailer Hitch Video where this part is reviewed. The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56208 is your most economical wiring harness option. I attached an installation video. If you plan on doing some towing, I recommend the cost effective Convert-a-Ball...
    view full answer...
  • Recommended Towing Package for a 2002 Isuzu Rodeo
    Yes, the Curt Trailer Hitch Receiver part # C13235 is a confirmed fit for your 2002 Isuzu Rodeo with the door mounted spare tire. This is a Class III trailer hitch with a 2" receiver tube opening. If you will be towing a trailer you will also need a trailer wiring harness and ball mount/hitch ball if you do not already have them. For a trailer wiring harness I recommend taking a look at the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # 118360 and for a ball mount...
    view full answer...
  • Recommended Hitch And Wiring For A 2021 Toyota RAV4 Hybrid
    We definitely have options available to set up your 2021 Toyota RAV4 Hybrid to tow a trailer. The Curt # C13416 Class III Hitch is a great place to start. This American made hitch is rated up to 4,000 pounds towing and 600 pounds of tongue weight and will definitely handle the small trailer you are looking at. This is a bolt on application with no drilling is required, but if present, the tie down bracket from the bottom of the passenger-side frame rail will need to be removed. Next you...
    view full answer...
  • What is Included with the Curt Trailer Hitch Receiver Part # 13390
    The Curt Trailer Hitch Receiver part # 13390 comes with everything you will need for installation except the tools including 4 carriage bolts, 4 hole spacers, 4 hex nuts, and 2 firewire bolt leaders. In order to install this hitch you will need a 10/19 mm socket, 8" extension, ratchet, torque wrench, 17/32" drill bit, rotary tool, and file. If you will be doing any towing with the hitch then you will also need a wiring harness, ball mount, and hitch ball. For a wiring harness I recommend...
    view full answer...
  • What is Needed to Tow Safely With a 2011 Toyota Sienna XLE?
    Happy to see that safety is important enough that you'd ask, and the answer is no, you do not need any additional equipment such as engine coolant in order to tow safely with your 2011 Toyota Sienna. Now, that does not necessarily mean something like a transmission cooler is a bad idea, as it will stop your Sienna from working quite so hard, but it is not necessary. What you will need, however, is a hitch, and the Curt # C13105 has a 2" x 2" opening with a max tongue weight of 350 lbs...
    view full answer...
  • Correct Trailer Hitch and Trailer Wiring Harness for 2017 Nissan Quest
    According to Curt, the # C13900 is a fit for the Nissan Frontier and the small Nissan Pickup that predated it but they don't list the Quest as a fit. I'd recommend using the Curt # C13078 Class III hitch which is specifically designed for your 2017 Quest. If you'll be using the hitch for towing purposes, you'll also need the # C56342 trailer wiring harness, a ball mount like # 40346 (use in the rise position) and a 1-7/8 inch ball like # 19260 or a 2 inch ball like # C40004. You'd also...
    view full answer...

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Info for this part was:

Employee Jameson C
Expert Research:
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Employee Adam R
Expert Research:
Adam R
Employee Brandon M
Installed by:
Brandon M
Employee Wilson B
Updated by:
Wilson B
Employee Amanda M
Updated by:
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Employee Brian T
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