bing tracking image
  1. Trailer Hitch Ball Mount
  2. CURT
  3. Fixed Ball Mount
  4. Drop - 4 Inch
  5. One Ball
  6. 20000 lbs GTW
Curt Heavy Duty Forged Ball Mount for 3" Hitch - 2-5/16" Ball - 4" Drop - 20K
etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
CURT

Curt Heavy Duty Forged Ball Mount for 3" Hitch - 2-5/16" Ball - 4" Drop - 20K

Part Number: C52JR
In Stock
$141.61
Retail:$210.95
You Save: $69.34
Trailer Hitch Ball Mount
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.
By submitting this form, you understand and agree to our Terms of Sale, Website Terms of Use and Privacy Policy.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
Towing starter kit includes forged ball mount; 2-5/16" diameter, chrome-plated, pre-torqued hitch ball; and pin and clip. Slides into 3" square trailer hitches. Great Prices for the best trailer hitch ball mount from CURT. Curt Heavy Duty Forged Ball Mount for 3" Hitch - 2-5/16" Ball - 4" Drop - 20K part number C52JR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (902)
  • Q & A (0)
  • Videos (1)
  • Photos

CURT Trailer Hitch Ball Mount - C52JR

Highlights

  • 20,000 lbs GTW for Heavy Trailers: Handles large boat, utility, camper, and livestock trailers.
  • 4" Drop for Level Hauling: Helps match trailer height to keep loads balanced while towing.
  • Pre-Torqued 2-5/16" Ball Included: Ready to tow right away without mounting or torqueing your own ball.
  • Solid One-Piece Forged Steel Build: Delivers strength and long-term reliability for heavy-duty towing.
  • Corrosion-Resistant Finishes: Carbide black powder coat and chrome ball plating help block rust and chips.
  • Includes Pin and Clip for Setup: Lets you mount directly into a 3" x 3" receiver without extra parts.

Features to know about

Built for Heavy Loads: 20,000 lbs GTW Capacity

When you’re pulling big trailers, strength and stability are non-negotiable. This forged ball mount is rated for a 20,000-lb gross towing weight and a 2,000-lb tongue weight, giving it the muscle to handle tough jobs like large boat trailers or double-axle utility haulers. The solid, 1-piece forged steel design keeps flex out of the equation so your connection feels steady and secure every mile.

Keeps Your Trailer Level: 4" Drop for Proper Height Match

A level trailer tracks straight and brakes smoothly. This fixed mount gives you a 4" drop from the top of the hitch opening, helping line up your coupler height for balanced towing. Once it’s hitched, you’ll feel the difference in stability and control—no need to juggle multiple mounts or guess at height settings.

Ready Right Out of the Box: Pre-Torqued 2-5/16" Hitch Ball

No wrenching or guesswork needed here. The factory-torqued 2-5/16" chrome-plated ball comes pre-installed so you can tow straight away. It also includes a pin and clip for securing it in your 3" receiver, saving time when you’re setting up for a haul.

Resists Rust and Wear: Carbide Black Powder Coat Finish

Towing gear lives a hard life exposed to rain, salt, and road grime. The carbide black powder coat on this mount holds up to corrosion, chipping, and UV damage so it stays looking clean and performing strong season after season. The chrome plating on the hitch ball adds another layer of rust resistance for long-term reliability.

Specs

Application

  • Application: 3" x 3" trailer hitch receiver

Weight and Capacity

  • Gross towing weight: 20,000 lbs
  • Tongue weight: 2,000 lbs

Dimensions

  • Drop: 4" from top of inside of hitch opening

Technical diagram showing how to measure drop on a standard trailer hitch ball mount, illustrating correct measuring points for proper trailer leveling.

Ball Information

  • Ball size: 2-5/16"

Warranty

  • Ball mount: Limited lifetime
  • Ball: 1-Year limited

45375 Curt Loaded Ball Mount - Quick-Loading 3" Square, Forged Ball Mount with 2-5/16" Chrome Hitch Ball - 4" Drop - 20,000 lbs





Video of Curt Heavy Duty Forged Ball Mount for 3" Hitch - 2-5/16" Ball - 4" Drop - 20K
Video Thumbnail Video Player Dialog

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




Video Transcript for Comprehensive Review: Curt Heavy Duty Forged Ball Mount for 3" Hitch

Hi there, I'm Michael with etrailer.com. Today, we're gonna take a quick look at this CURT heavy duty forged ball mount. Now, this is going to slide right into your three 3 inch by 3 inch trailer hitch receiver on your vehicle. Then it's gonna provide this 2-5/16 inch diameter hitch ball to connect to the coupler on your trailer so that you can tow your trailer. This pitch ball does come torqued to the factory specifications. So, you're not gonna have to worry about installing it yourself.

It's gonna have a nice and solid connection there for your trailer. This is going to provide a 4-inch drop for your trailers that sit 4 inches lower than your ball mount or your receiver tube on your hitch. So, if you do have it for a trailer that sits a little bit lower, this is going to accommodate that. So, it's gonna allow the trailer to ride nice and level as you're going down the road. So, this is a solid one piece forged steel construction.

So, it is going to give us a gross towing weight of 20,000 pounds, that of course is the weight of the trailer plus the load included. It's going to give us a tongue weight or downward pressure on your hitch ball of 2000 pounds. So, it will be great for towing those heavy loads. As you can see this does have a carbide, black powder coat finish to it. So, that's going to provide corrosion resistance and make sure that it holds up well for us.

The ball has a chrome plating that is gonna provide corrosion resistance as well. This comes with a limited lifetime warranty on the ball mount itself, not on the ball. So, if you we're to have any problems, you're more than welcome to reach out to us, here at etrailer.com. One thing that's not included is going to be your pin and clip. You probably already have one for your hitch, but if not, this is just your standard 5-8th inch diameter hole.

So, you'll just need a standard 5-8th inch diameter pin and clip. We do have lots of options available here at etrailer.com We also have locking pins available. So, if you wanted to add a little extra security, make sure that people aren't gonna be able to come along and pick off with your ball mount when you're not around, we have those available as well. Now, I will say that this is a static mount, so, it's only going to provide that 4-inch drop for you. So, that's gonna work great if you are only planning on ever towing that one trailer that sits 4 inches lower. We do have adjustable ball mounts that will accommodate several different trailer heights. So, if you're gonna be towing multiple trailers that don't all have the same height, I would probably go with that route. But if you are just gonna be towing the one trailer, I think this will work great for you. So, that completes our look for today. Again, I'm Michael with etrailer.com. Thanks for watching..

Customer Satisfaction Score:

Ratings & Reviews

4.8

902 reviews
5 Stars
(822)
4 Stars
(44)
3 Stars
(17)
2 Stars
(5)
1 Star
(14)
Review Sort Icon
by:
My hitch arrived on time as scheduled from half way across the country. The item was packaged well and it didn’t have one scratch on it when it arrived. Good job!
by:
excellent quality- no issues to date
Most impressive, I've never had any supplier contact me a year later to see how there product is performing. Thank you guys for the excellent customer service!!
by:
Another Rock solid product and great service.
by:
Perfect thank you!
by:
by:
Super glad about this!
by:
by:
by:
by:
by:
Heavy duty (very heavy)seems to be a better stable towing hitch compared to the adjustable hitches .Great quality ,etrailer had fast gree shipping
by:
There's a lot of fancy ball mounts out there. I like the tried and true "huge chunk of steel" option. Those fancy ball mounts come with a lot of failure points as well. This is a massive piece of metal, with a ball and a pin. That's it. People have been towing this way forever. Why risk being fancy and watching your trailer pass you on the freeway? Find the drop you need, get a big hitch like this and call it a day. These hitches are cheaper and stronger than nearly anything out there.
Heather A. profile picture
Etrailer Expert

Heather A.

4/10/2026

I love that, “huge chunk of steel” is about as honest as it gets. There’s definitely something to be said for keeping it simple. No moving parts, no extra pieces to worry about, just solid steel doing its job mile after mile. Hard to beat that kind of reliability when you’re towing. Sounds like you’ve got a setup you trust, which is really what matters most. What are you usually hauling with it?

by:
The ball mount is great. Aligns the truck and trailer just right so I can avoid using my clunky and heavy adjustable ball mount.
The pin is ok. Seems a little thin but I reckon it’s solid. The clip though is problematic. Real hard to press in. Scraped my knuckles a couple of times. It’s the angle and or the length of the wire where it begins to assemble. Too short or maybe wrong angle. Hope you understand what im saying.
Thanks
by:
1st: package was in great shape
2nd: idems were delivered quickly
3rd: hitch and lock pin are well made heavy duty,sold.
5th :fits the truck and trailer perfectly and looks great!
by:
Curt products are great. Built like a brick s*** house. I won’t even consider any other brand. I’ve used them for decades and have zero issues with them. Got a new truck that has a 2 1/2 hitch so I had to get a bigger set.
by:
Outstanding chunk of forged steel. I like this because I just have trust issues with a welded hitchbar towing a 12k trailer and putting 50k+ miles/year on it. LOVE the fact that it comes with the ball already installed and torqued to spec. Take it out of the box, lock it onto the truck, and hit the road!
John profile picture

John

4/3/2026

VERY well, unlike everything else involved with trailering, this product has required little-to-no maintenance other than a little grease every now and then.

Heather A. profile picture
Etrailer Expert

Heather A.

4/3/2026

@John Hey John, really appreciate you coming back with the one year update. That kind of long term feedback is super helpful, especially for folks towing as much as you are. It’s great to hear this mount has held up with minimal maintenance and is still giving you that same confidence on the road. A quick bit of grease now and then is about all these really need, so it sounds like it’s doing exactly what it’s supposed to. Out of curiosity, are you still towing that same 12k trailer setup or have you changed things up at all since last year?
by:
Hitch ball mount looks good and fits in the tube. There is a little wiggle in the tube but doesn’t seem to be enough to cause trouble. I need to invert the mount to get a 1/2” rise but the nut is 7/8” flat to flat. I don’t have a socket big enough to fit that. So I’m either going to have to buy or borrow one.
by:
Great customer service! I called for advice on choosing the correct size and weight rating for my specific application. William B was very helpful and within minutes I was able to purchase everything I needed. The whole process was easy and quick.
by:
The hitch showed up on time and is heavy duty as expected.
by:
Exactly as advertised! After I ordered the wrong one, my bad, Will at etrailer made the return process simple and had the correct one shipped same day. We always use etrailer, fantastic customer service.
by:
Love this Curt ball mount. Heavy duty, rugged. One piece with no welding.
There is no chance of a breakage at weld since there is no welding on this piece. Well above my load weight. Never haul a heavier load than the limit shown on the ball mount sticker.
by:
Definitely heavy duty!
by:
Excellent product. Great Customer Service.
by:
Arrived sooner than expected. A very sturdy hitch with pin. I especially appreciate having the rounded edges where we frequently walk at the back of the SUV. 4" drop is correct to match my truck and trailer hitch height on my Subaru Ascent.
Tom profile picture

Tom

11/15/2020

Still working great

by:
As with all Curt products I’ve used, top notch!
25
902
true
Show More Reviews

See what our Experts say about this CURT Trailer Hitch Ball Mount


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Wilson B
Updated by:
Wilson B
Employee Mike S
Written by:
Mike S
Employee Michael B
Installed by:
Michael B

At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.