1. Trailer Hitch Ball Mount
  2. Curt
  3. Fits 2 Inch Hitch
  4. Fixed Ball Mount
  5. Rise - 2 Inch
  6. Drop - 4 Inch
Curt Class III Ball Mount with 2-5/16" Ball - 2" Rise or 4" Drop - 7,500 lbs

Curt Class III Ball Mount with 2-5/16" Ball - 2" Rise or 4" Drop - 7,500 lbs

Item # C45042
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Trailer Hitch Ball Mount
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Shipping Weight: 10 lbs
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Curt Fixed Ball Mount - C45042
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Towing starter kit includes 8-1/4" long, powder coated ball mount; 2-5/16" diameter, chrome-plated, pre-torqued hitch ball; and pin and clip. Slides into 2" square trailer hitches. Lowest Prices for the best trailer hitch ball mount from Curt. Curt Class III Ball Mount with 2-5/16" Ball - 2" Rise or 4" Drop - 7,500 lbs part number C45042 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (12)
  • Q & A (9)
  • Photos
  • Why etrailer?

Curt Trailer Hitch Ball Mount - C45042

  • Fits 2 Inch Hitch
  • Fixed Ball Mount
  • Rise - 2 Inch
  • Drop - 4 Inch
  • Curt
  • One Ball
  • 7500 lbs GTW
  • Ball Mount Kit
  • Steel Shank

Towing starter kit includes 8-1/4" long, powder coated ball mount; 2-5/16" diameter, chrome-plated, pre-torqued hitch ball; and pin and clip. Slides into 2" square trailer hitches.


  • Starter kit has everything you need to tow, minus the hitch
  • Ball mount provides drop or rise to fit your application
  • Hitch ball comes torqued to factory specifications
    • Chrome plating resists corrosion
  • Black powder coat finish on ball mount for superior rust protection
  • Pin and clip included - hitch lock sold separately


  • Application: 2" x 2" trailer hitch receiver
  • Gross towing weight: 7,500 lbs
  • Tongue weight: 750 lbs
  • Ball mount length: 8-1/4" from center of hitch pin hole to center of ball hole
  • Rise: 2" from top of inside of hitch opening
  • Drop: 4" from top of inside of hitch opening
  • Ball size: 2-5/16"
    • Shank diameter: 1"
  • Warranty:
    • Limited lifetime for ball mount
    • 1-Year limited for ball

45042 Curt Loaded Ball Mount - Quick-Loading 2" Square Ball Mount with 2-5/16" Chrome Hitch Ball - 2" Rise or 4" Drop

Customer Reviews

Curt Class III Ball Mount with 2-5/16" Ball - 2" Rise or 4" Drop - 7,500 lbs - C45042

Average Customer Rating:  5.0 out of 5 stars   (12 Customer Reviews)

Towing starter kit includes 8-1/4" long, powder coated ball mount; 2-5/16" diameter, chrome-plated, pre-torqued hitch ball; and pin and clip. Slides into 2" square trailer hitches.

- C45042

Products came in as expected. Thank you. 695864

- C45042

The hitch was exactly as described. etrailer provided it exactly when they said they would. No nonsense, accurate sales at a fair price. That is exactly what I was looking for. 633492

- C45042

Product was exactly what was described delivered in 1 day via UPS. Thxs 598250

- C45042

The Curt Class III ball mount arrived as promised and the product is as advertised. My whole experience with the process was top notch from ordering to delivery, installation, and use all 5 star. 563880

Just great no complaints.
Joe L - 09/11/2019


- C45042

What's to say? Quality product with a good finish. 528754

- C45042

Standard product, but packaged neat & clean. I've never had any issues with the 4 or 5 times that I've dealt with etrailer. 443423

- C45042

The product we purchased, a Curt Ball Mount, is exactly what we wanted. It was well packaged and in perfect shape. We would order again from ETrailer.com without hesitation. While they did upgrade my shipping for free it still took the same amount of time as regular shipping but through no fault of ETrailer.com. It just happened that we ordered and the shipping occurred over the weekend. Again, fast, courteous service. I highly recommend ETrailer.com. 375134

- C45042

I have never had a bad experience with etrailer.com, we're a large environmental company and 75% of my purchases are with etrailer.com. It's not that I want to go other places, but we do everything to or trailers here from paint to door skins. Not everything is offered here, but if you want great service, after sales service and no nonsense purchasing, I highly recommend etrailer.com. 321171

- C45042

Great Service, Great Shipping and GREAT Product, put it to use immediately wouldn't purchase other accessories elsewhere! 319327

- C45042

Etrailer did a terrific job with my order of a Curt 2 5/16 ball and ball mount. Their pricing on this item was less than half of what Lowe's charged for a similar product. The ball and mount arrived without the pin and clip, but the staff responded immediately and shipped the missing items on the next day. I would definitely do business with etrailer again! 306664

- C45042

Excellent---- Web site is easy to navigate & has informative pages. Prices continue to beat my local trailer sales. Even though etrailer is on east coast & i'm located in mid west, I get deliveries in 2-3 days. Parts are packaged well & have always shown up in excellent condition. 293608

Everything is still going well with the parts. Thanks so much
-- Missy a - 10/17/2017


- C45042

Great price. Looks like quality product. Excellent communications and very fast shipping. Will definitely buy from etrailer.com again in the future! 202030

Been nearly 4 years and it still looks like new.
Bob L - 03/08/2019


Ask the Experts about this Curt Trailer Hitch Ball Mount

  • Recommended Curt Ball Mount without Hitch Ball with 4 Inch Drop and 7,500 Pound Capacity
    The Curt Class III Ball Mount # C45042 referenced in your question includes a pre-torqued 2-5/16 inch hitch ball. This exact ball mount is not available from the manufacturer without the hitch ball, but I do have an option that should work well. I recommend taking a look at the Curt Ball Mount # C45154. This 2 inch ball mount features a drop of 3-3/4 inches or a rise of 2-1/2 inches. It features the same 7,500 pound towing capacity as the Curt unit you were looking at but also has a...
    view full answer...
  • Recommended Ball Mount with 4 Inch Drop and 10,000 Pound Towing Capacity
    The Curt Class III Ball Mount with 2-5/16 Inch Ball # C45042 referenced in your question has a maximum towing capacity of 7,500 pounds. For a ball mount that will provide the same 4 inch drop and give you a 10,000 pound capacity, I recommend the Draw-Tite # 40202. This sturdy steel ball mount is compatible with 2 inch hitch receivers and also features a tongue weight of 1,000 pounds. You will just need to add a compatible 2-5/16 inch hitch ball like # 19286. I have attached a short...
    view full answer...
  • Is Hitch Ball Included with Curt Class III Ball Mount # C45042
    The Curt Class III Ball Mount # C45042 referenced in your question does indeed include the 2-5/16 inch hitch ball that is actually pre-torqued to the platform. The ball mount and hitch ball have a gross towing capacity of 7,500 pounds and a drop of 4 inches. I have attached a short video demonstration on this product that you can also check out.
    view full answer...
  • Recommended Locking Hitch Pin to use with the Curt Class III Ball Mount # C45042
    If you are just looking for a locking hitch pin to use with the Curt Class III Ball Mount # C45042 then I recommend going with the Trailer Hitch Receiver Lock # e98880. I do recommend using a locking hitch pin that has an anti-rattle feature as well. The Let's Go Aero Lock # 63232 will work with the Curt ball mount and will provide a lock as well as a part of the hitch pin that will help to keep the ball mount from rattling inside your hitch receiver.
    view full answer...
  • What is the Drop Measurement on Curt Ball Mount C45042
    Curt ball mount # C45042 measures 4 inches from the top of the shank to the top of the ball mount platform. I have linked a video review of this ball mount for you.
    view full answer...
  • Ball Mount with 2 Inch Rise and Ball Already Installed in Rise Position
    The Curt ball mount # C45042 only comes with the ball torqued into the drop position but we do have part # C45155. This has the ball in the rise position and it's a 2-1/4 inch rise but it's only a 2 inch ball not a 2-5/16 inch. If you need a 2-5/16 inch ball you'll need to move the ball on part # C45042.
    view full answer...
  • Best 2 3/8 Ball Hitch Recommandation
    The standard sizes of balls that are available are going to be 1 7/8" , 2" and 2 5/16". We do not carry or have I ever seen a 2 3/8" ball. I would remeasure since there is only a 1/16" difference between 2 5/16" and 2 3/8" it might just be a mistaken identity. If you do discover it is a 2 5/16" ball the one you looked at Buyers Products Tri-Ball Hitch part # 3371802200 is a good choice if your trailer tongue when sitting level is even with your receiver tube opening. If it is lower...
    view full answer...
  • Measuring for Correct Ball Mount on 2017 Chevy Colorado
    Based on your measurements you are looking for a 4-1/4 or 4 inch drop for your ball mount. I've attached an article to assist. If you want a fixed mount ball mount, I recommend the4 Curt Class III Ball Mount with 2" Ball - 4" Drop - 7,500 lbs # C45056 if your trailer has a 2 inch ball coupler. If the coupler fits a 2-5/16 inch ball, then I recommend # C45042 instead. These will work well for towing 7,500 lbs with a 750 lbs tongue weight. Anything beyond that should use a weight distribution...
    view full answer...
  • Options for a 2 Inch Ball Mount that Comes with a 2-5/16 Inch Ball
    The ball mounts that have a ball welded on are all either 2 inch or 1-7/8 inch diameter balls. We have some ball mounts that come with a 2-5/16 inch ball bolted on: # C45331 # C45332 # C45041 # C45042
    view full answer...

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Info for this part was:

Expert Research:
Michael H
Written by:
Laura H
Updated by:
Sarah W
Updated by:
Kristina F
Updated by:
Isabelle B

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