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  1. Trailer Hitch Ball Mount
  2. CURT
  3. Fits 2-1/2 Inch Hitch
  4. Adjustable Ball Mount
  5. Drop - 6 Inch
  6. Rise - 5 Inch
Curt Adjustable 2-Ball Mount - 2-1/2" Hitch - 6" Drop, 5-1/4" Rise - 20K
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Curt Adjustable 2-Ball Mount - 2-1/2" Hitch - 6" Drop, 5-1/4" Rise - 20K

Our Price: $294.62
You Save: $153.33
Trailer Hitch Ball Mount
Shipping Weight: 36 lbs
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This heavy-duty steel, adjustable ball mount lets you tow up to 10,000 lbs with the 2" ball or 20,000 lbs with the 2-5/16" ball. Can be used in 6" drop or 5-1/4" rise positions. Fits 2-1/2" x 2-1/2" hitch receivers. Great Prices for the best trailer hitch ball mount from CURT. Curt Adjustable 2-Ball Mount - 2-1/2" Hitch - 6" Drop, 5-1/4" Rise - 20K part number C45902 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (752)
  • Q & A (0)
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  • Used (1)

CURT Trailer Hitch Ball Mount

  • Fits 2-1/2 Inch Hitch
  • Adjustable Ball Mount
  • Drop - 6 Inch
  • Rise - 5 Inch
  • 2 Inch Ball
  • 2-5/16 Inch Ball
  • Two Balls
  • 20000 lbs GTW
  • Class V
  • CURT
  • Steel Shank - Gloss Black
  • Steel Ball

This heavy-duty steel, adjustable ball mount lets you tow up to 10,000 lbs with the 2" ball or 20,000 lbs with the 2-5/16" ball. Can be used in 6" drop or 5-1/4" rise positions. Fits 2-1/2" x 2-1/2" hitch receivers.


  • Ball mount with built-in hitch balls lets you hook up your trailer to your tow vehicle
    • Shank slides into hitch receiver
    • Ball provides connection point for trailer coupler
  • Adjustable height lets you tow trailers of different heights with the same vehicle
    • Slide ball mount up or down along shank and secure in place with included pins and clips
  • 2 Different-size hitch balls let you tow trailers with different coupler sizes
    • To switch ball, simply remove pins, rotate balls, and reinsert pins
    • Adjusts in 1" increments
  • Channel-style mount also lets you attach a pintle hook (C45922 - sold separately)
  • Anti-rattle design helps to reduce towing noise
  • Heavy-duty steel construction
  • Black powder coat on ball mount and zinc coating on balls resists corrosion
  • Hitch pin and clip included


  • Application: 2-1/2" x 2-1/2" trailer hitch receivers
  • Gross towing weight:
    • When used with 2" ball: 10,000 lbs
    • When used with 2-5/16" ball: 20,000 lbs
  • Tongue weight: 2,000 lbs
  • Distance from center of hitch pin hole to center of ball:
    • Hitch pin hole closest to ball: 10-3/8"
    • Hitch pin hole farthest from ball: 11-3/8"
  • Distance from center of hitch pin hole to the closest point of the support gusset:
    • Hitch pin hole closest to gusset: 3"
    • Hitch pin hole farthest from gusset: 4"
  • Maximum rise: 5-1/4"
  • Maximum drop: 6"
  • Pin hole diameter: 5/8"
  • Interior channel width: 3"
  • Limited 1-year warranty

How to Measure Drop on Adjustable Ball Mount

45902 Curt Channel-Style Adjustable Ball Mount w/ 2" and 2-5/16" Balls

Item # C45902

Customer Satisfaction Score:

Customer Reviews

Curt Adjustable 2-Ball Mount - 2-1/2" Hitch - 6" Drop, 5-1/4" Rise - 20K - C45902

Average Customer Rating:  4.8 out of 5 stars   (752 Customer Reviews)

This heavy-duty steel, adjustable ball mount lets you tow up to 10,000 lbs with the 2" ball or 20,000 lbs with the 2-5/16" ball. Can be used in 6" drop or 5-1/4" rise positions. Fits 2-1/2" x 2-1/2" hitch receivers.


The product was well described on the web site. The truck matching worked great and was easy to use.
This hitch was very easy to order and the price was good.
The delivery date was correct, it was easy to follow with the information provided.
The hitch was as advertised, easy to install and easy to use.
Great Job!

Dean M.


I have had this hitch for a year and it has towed trailers all over the northeast. It is still in great shape and works great.


Super strong, not much noise. Have it on a ram 2500 on 35” tire with stock suspension and it goes low enough for my 4x8 trailer and tall enough for my dump trailer and flatbed


What is there to say about a perfect hitch like this one? Why haven't you got it yet would be it. I have a 2015 Dodge Ram 2500 and it went low enough for any trailer I pulled. Performed perfectly at pulling any trailer, of any size, of any weight. Still use it today (2023) It does have a locking bolt if you don't like hitch ball rattle. But you don't have to use it and it works fine without it. The hitch rattle doesn't bother me. I guess the only thing I would have liked is if it had come with another drop hitch with 1 7/8 ball on one side. And maybe a hook or a hole for a clevis on the other side.


First of all, ETRAILER is a great company in my opinion. Their selection, prices and customer service are all great.

This hitch is stout! I'm the type that I'd rather have more capability than what I may actually use. For what I will use this for, I'm 100% sure it will be way more than I'll ever need but I'm also confident that I would not have any issues using it regularly at it's maximum capability. The construction of it is top notch and I'd be willing to bet it can do more than what it's rated for.

I will definitely be ordering the 20K Pintle that works with this as well as a Curt 5th Wheel and Gooseneck. Thank you ETRAILER and thank you CURT for amazing service and and amazing product.


I have been completely satisfied with this product. Very durable, solid beyond my expectations. Whether towing 1/2 ton or 6 tons I have no concerns that the trailer and load aren't safe and secure. Would purchase again but won't need to as this hitch was built to last.


Hitch is very heavy duty which is nice. Think some more engineering could go into it so you don’t have to use the Allen to snug hitch to keep from rattling. I ended up purchasing the rubber inserts. Definitely recommend if towing heavy trailers.


I ordered the adjustable ball mount and it showed up in two days and in perfect shape. Etrailer has always delivered parts very timely. Thanks.


Very well built. I've had it for one year and it's exactly what I needed. Heavy duty towing capabilities, adjustable and two ball sizes. What more could you ask for?



After one year it has held up fantastically. Very little to no rust showing. It has been very durable through the heavy snow and salt life after a winter season. I still would recommend this to anyone.


The hitch arrived quickly and as expected. Normally a hitch that weighs as much as this one (37.5lbs shipped) is hard to order online due to the weight of the item but etrailer really made it easy. The interaction with the folks from etrailer was perfect. They were detailed in their email and made every effort to make this a personal experience.


This is the quickest and easiest ball mount I have ever seen or used. Just by pulling 2 pins you can easily adjust the ball height and size in seconds. Very pleased with Curt product. has great products and great service.


Always a pleasure doing business with etrailer. Product came with free shipping in 3 days! What more could you ask for?


Just what I needed for the Ram 2500, so I can pull smaller trailers and keep them level.


Strong as on ox. Love it. Very easy to adjust and flip. The real deal!



This dude is the beast! Strong as an ox. Tremendous vertical range by flipping vertically. Appreciate rubber bushings on back of the 2 ball mount that absorb shock against the gusset. I tow 3 types trailers all different heights. Adjusts quick n easy. Love it.


Very strong and durable hitch. Elevation and dropping is very convenient.

2 big issues with his hitch.

1) does not have an option to buy a 1 7/8 ball.
2) even with a pin lock on the hitch, the balls can still be stolen with its design. If the balls are stolen they can not be easily replaced or cheaply.

Overall, does the job, but once it is stolen, I’ll be buying something better theft protection.

Etrailer Expert

Mike L.


As with any ball mount, it is recommended to remove it from the vehicle when it is not being used. This will protect it against theft and corrosion. Some States actually mandate that a ball mount be removed when not towing.If removing the ball mount is not feasible, a hitch lock # RH5-XL can be used in place of one of the pins that hold the ball in place.



Hitch hasn’t been stolen. Easy hook up. Pulls 12k with ease. Rust build up is a little disappointing, but still have plenty of life in it. Hitch has saved my bumper from damage several times.


The shank has a lot of play , up down .. side to side
Slops around while towing
When you brake the ball will shift up and down causing it to be uncomfortable

Etrailer Expert

Jenny N.


I do have a solution for you. I recommend adding an anti-rattle device such as part # BX88312 to help take out movement in the hitch receiver.


Fast shipping from etrailer. Very heavy duty unit and perfect for my 2020 Silverado 2500HD. I needed an adjustable drop hitch and this unit works perfectly between different trailers that I tow.



Had the hitch a year and still love it. When not in use I remove the hitch from receiver and store it away for fear of theft.


Overall quality looks good . Powder coating is less than adequate 1 day in the rain it has rust on it

Etrailer Expert

Laura E.


So sorry to hear of any inconvenience with your order. Since this product is covered by a 1-year limited warranty, I have forwarded your review to our customer service department for direct follow-up with you.


The product is everything they said it was and more, the adjustment capabilities are great along with the ability to extend the receiver. I plan to pull a 26 foot car trailer at about 12,000 pounds loaded. The service and concern as always was excellent. I highly recommend this product and certainly etrailer.


Easy to adjust and strongly built



No problems at all.


Very pleased with the product quality. The hitch must have been updated since the video and still images were taken. The manual “anti-rattle” design is gone. Replaced by a rubber plug, which I can only assume will work just as well (?). Shipping time was minimal, etrailer has always delivered well.


Good heavy duty hitch, works as well as other big brand names without the hurt on the wallet. Love that you can have a 2 inch,2-5/16 and a pintle hitch all in one unit!!


Great service. Highly recommend


Quality product!


I have had this hitch/mount for a year and I am glad I purchased it for my horse trailer. This is one sturdy hitch & ball mount. Due to the cost I only install the hitch when I need to tow, so I have no experience on how the metal will hold up in the weather.


This is a heavy duty hitch set up. I have only used it a few times but I know what ever I hook up to. it will get the job done. I have towed a full size suv and a large heavy duty trailer with no problems. This hitch should give a life time of service and then some. If your looking for a heavy duty hitch set up. This is the one you want. Only thing negative is it needs to be able to accommodate a1 7/8” ball. Other than that it’s perfect.
Thanks etrailer for having outstanding products like this to offer your customers.

Chuck D.


Still looks good and no issues. Does what it was made for. You won’t go wrong with this hitch.

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Used Picture for Curt Adjustable 2-Ball Mount - 2-1/2" Hitch - 6" Drop, 5-1/4" Rise - 20K

Condition: Like New

Notes: May have damaged packaging or minor cosmetic blemishes.

Our Price: $255.95
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