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  1. Trailer Hitch Ball Mount
  2. CURT
  3. Adjustable Ball Mount
  4. Fits 2 Inch Hitch
  5. Drop - 7 Inch
  6. Two Balls
Curt Alumalite Aluminum Adjustable 2-Ball Mount - 2" Hitch - 7-1/2" Drop - 12.5K
CURT

Curt Alumalite Aluminum Adjustable 2-Ball Mount - 2" Hitch - 7-1/2" Drop - 12.5K

Part Number: C33ZJ
In Stock
$354.95
Retail:$466.95
You Save: $112.00
Trailer Hitch Ball Mount
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In Use/Installed

This aluminum, adjustable ball mount lets you tow up to 8,000 lbs with the 2" ball or 12,500 lbs with the 2-5/16" ball. Can be used in a 7-1/2" drop position. Fits 2" x 2" hitch receivers. Great Prices for the best trailer hitch ball mount from CURT. Curt Alumalite Aluminum Adjustable 2-Ball Mount - 2" Hitch - 7-1/2" Drop - 12.5K part number C33ZJ can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (11)
  • Q & A (0)
  • Videos (3)
  • Photos

CURT Trailer Hitch Ball Mount - C33ZJ

Highlights

  • 12,500 lbs GTW for Heavy Trailers: Handles large campers, boats, or equipment with the 2-5/16" ball.
  • 7-1/2" Drop for Level Towing: Lets you match trailer height for steady, even towing on varied setups.
  • Two Ball Sizes in One Mount: 2" (8,000 lbs) and 2-5/16" (12,500 lbs) balls fit different trailer couplers fast.
  • Adjustable in 1" Increments: Fine-tunes height with included pins and clips for quick changes.
  • Lightweight Aluminum Build: Cuts hitch weight while resisting corrosion from salt and road grime.
  • Smooth Pin-Lock Connection: 5/8" pin holes with vibration-resistant clips help reduce hitch movement.

Features to know about

Keeps Every Trailer Level: Adjustable Drop Up to 7-1/2"

Different trailers rarely line up the same, and that’s what makes this adjustable mount so useful. The Curt Alumalite Aluminum Adjustable 2-Ball Mount slides up or down in 1" increments so you can match each trailer’s coupler height. It works in the drop position with a maximum drop of 7-1/2", keeping your boat, camper, or utility trailer level and tracking straight every time you tow.

Handles Serious Loads: 12,500 lbs GTW Capacity

When you’re moving heavy gear, you need strength you can count on. This mount handles up to 8,000 lbs with the 2" ball and up to 12,500 lbs with the 2-5/16" ball. Tongue weight ratings are 800 lbs and 1,250 lbs respectively, giving you dependable support for large campers or equipment trailers without worrying about strain or flex.

Switches Between Trailers Fast: Dual Hitch Balls in One Mount

Swapping between trailers with different couplers doesn’t have to mean changing mounts. This setup includes polished-steel 2" and 2-5/16" hitch balls on one platform. You just remove the pins, rotate the ball assembly, and reinsert the pins—no tools needed. It’s a simple way to go from hauling a small trailer to a heavier rig in seconds.

Built for Long-Term Use: Lightweight Aluminum That Fights Corrosion

Every part of this mount is designed for strength without unnecessary weight. The billet-aluminum shank is lightweight yet solid, resisting corrosion from road grime and salt much better than plain steel. With vibration-resistant clips holding everything tight, it stays clean, quiet, and ready for the next haul.

Specs

Application

  • Application: 2" x 2" trailer hitch receivers

Weight and Capacity

  • Gross towing weight: When used with 2" ball: 8,000 lbs
  • Gross towing weight: When used with 2-5/16" ball: 12,500 lbs
  • Tongue weight: When used with 2" ball: 800 lbs
  • Tongue weight: When used with 2-5/16" ball: 1,250 lbs

Dimensions

  • Maximum drop: 7-1/2"
  • Distance between vertical adjustment holes: 1"
  • Pin hole diameter: 5/8"

Warranty

  • Limited lifetime warranty

Note

  • Note: Not intended for use in the rise position.

45365 Curt Alumalite Aluminum Adjustable Trailer Hitch Ball Mount with Dual Ball - 2" Shank - 12.5K

Installation Details C33ZJ Installation instructions



Video of Curt Alumalite Aluminum Adjustable 2-Ball Mount - 2" Hitch - 7-1/2" Drop - 12.5K
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Breaking Down the Curt Alumalite Aluminum Adjustable 2-Ball Mount

Hi everybody. Andy here with etrailer.com. Let's take a look together at this Curt, light aluminum adjustable two ball mount for your two inch hitch receiver. Now, this adjustable ball mount is going to slide into your two inch hitch receiver on your vehicle and give you a maximum towing capacity of 12,500 pounds and a maximum drop of seven and a half inches. Now, this adjustable height is going to obviously let you tow trailers of different heights with the same vehicle. You're just going to slide this ball platform up or down along this shank and secure it in place with the included pin and vibration resistant clip.

And like I mentioned, when this is all the way in the lowest position, and let me go ahead and show this to you real quick. I'm gonna go ahead and remove the pin. So when you have it in the lowest position, which will be right here, that's going to give you a maximum drop of right at seven and a half inches. And then this is going to adjust in one inch increments. And I do wanna let you know that this is not intended for use in the rise position rather.

And then I do have this currently set in the two and five 16th inch hitch ball. But to swap this out, I'm just going to slide the ball platform completely off the shank, flip it around, and then slide it back into place. And you can remove it from underneath the shank or below the shank as well. So it can either slide completely off going up or down. So very easy to slide this up and down this shank to get that perfect drop that you're looking for.

I'm gonna go ahead and replace my pin and clip. So the two different size balls are going to let you tow trailers with different coupler sizes and the balls are actually polished steel, so they're going to hold up really well for you. And just some other bits of information that might prove helpful for you. On that two and five 16th inch hitch ball, that's going to be where we get our highest towing capacity of 12,500 pounds. And then on the two inch ball, the maximum towing capacity or the gross towing weight's gonna be 8,000 pounds.

The tongue weight on the two in five 16 inch hit ball is gonna be 1,250 pounds. And then on the two inch ball it's gonna be 800 pounds. So very easy to change the drop, very easy to change which ball you want to use. The lightweight billet, aluminum construction is corrosion resistant. I really like this design. It's amazing just how light this is. When you look at it at first glance, you think this is going to be considerably heavier, but being that this is aluminum, it's very lightweight, but yet it's gonna be very durable, very strong for you. It's gonna be corrosion resistant. Some other measurements of mind proof helpful for you that I took before our time together. From the center of the hitch ball to the center of the first hitch pin hole is gonna be about seven and seven eights inches. And then to the second hitch pin hole is gonna be about nine and one eighths inches again on center. And then from the second hitch pin hole on center to the end of our shank, about one and five eighths inches. I do like the fact that the end of our shank is tapered. It's angled, so it's gonna be very easy to slide that into your trailer hitch receiver. The hitch pin hole diameter is five eighths of an inch. It does include the pin and clip to secure this into your trailer hitch receiver. However, this is really an investment that you're making. So I would recommend taking a look at our hitch lock options that we have [email protected] just to make sure that you have this locked to your trailer hitch receiver and someone can't come by and yank this off when you're not around. We do have an option where you can get a locking hitch pin for the trailer hitch receiver and a locking pin for the ball platform to secure both of those items on the back of your vehicle. So you can find those [email protected]. Instructions are included and this does include a limited lifetime warranty from Curt. Well, I think that's gonna wrap up our look today. I do hope that our time together was helpful for you. Again, my name is Andy. Thank you for joining me.

Customer Satisfaction Score:

Ratings & Reviews

5.0

11 reviews
Review sort icon
This aluminum, adjustable ball mount lets you tow up to 8,000 lbs with the 2" ball or 12,500 lbs with the 2-5/16" ball. Can be used in a 7-1/2" drop position. Fits 2" x 2" hitch receivers.

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Great quality and workmanship.



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Outstanding product! Excellent quality!



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Beautiful, well made, lightweight, corrosion resistant, what's not to love!
I have spent my whole life swapping out trailer balls and different hitches to meet my particular needs now I just make an adjustment to fit the trailer. I'm a happy boy.



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Awesome hitch. Glad I made the purchase!



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Very nicely CNC machined drop hitch with the perfect amount of drop that I needed (7")
Note it says on the box that it cannot be used to raise the hitch, only to drop.


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

  • Is There A Lightweight Aluminum Shank Available For The Curt TruTrack 2P Weight Distribution Hitch
    Hey Candelario, The Curt TruTrack 2P Weight Distribution System w/ Sway Control # C69JR only has a 2" channel and the shank of the Curt Alumalite Aluminum Adjustable 2-Ball Mount # C33ZJ you were looking at is 2-1/2" wide so it would be too large to fit. There isn't a another aluminum shank that would be compatible either unfortunately. Most other WDH's in your tongue weight range are going to either be the same amount of weight or more so there really isn't much of a difference you can...
    view full answer...

Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Dustin K
Video Edited:
Dustin K
Employee Chris R
Video Edited:
Chris R
Employee Jonathan Y
Video Edited:
Jonathan Y
Employee Wilson B
Updated by:
Wilson B
Employee Aidan B
Installed by:
Aidan B
Employee Andy C
Installed by:
Andy C
Employee Ryan F
Written by:
Ryan F
Employee Matthew G
Video by:
Matthew G

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