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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Ball Mounts C45042 - Ball Mount Kit - Curt
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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. Call 800-298-8924 to order Curt ball mounts part number C45042 or order online at Free expert support on all Curt products. Guaranteed Lowest Price and Fastest Shipping for Curt Class III Ball Mount with 2-5/16" Ball - 2" Rise or 4" Drop - 7,500 lbs. Ball Mounts reviews from real customers.
  • All Info
  • Reviews (12)
  • Q & A (7)
  • Videos (1)
  • Photos
  • Why etrailer?

Curt Ball Mounts - C45042

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

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

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

Video Transcript for Curt Ball Mounts - Fixed Ball Mount - C45042 Review

Today we're going to be taking a look at part number C45042. This is the Curt Class III Ball Mount with a 2-5/16-inch hitch ball. The starter kit is going to have everything that you need to tow as soon as you take it out of the box. The ball mount is going to provide a 4-inch drop which is measuring from this point here to the top of the ball platform or you can flip it over and re-position your hitch ball and it's going to give you a 2-inch rise from this point here to this point here. It's going to include your 5/8-inch pin and clip so you can secure this inside of your hitch. The hitch ball, again is a 2-5/16-inch hitch ball. It's going to come already torqued to factory specifications so, again, it's ready to use right out of the box.

It's going to feature a nice chrome plating that's designed to resist corrosion. Here at the base it's going to feature a 1-inch shank diameter and that's on the hitch ball itself. It's also going to include your wrench flats for easy adjustability in case you ever need to make any adjustments to the hitch ball. The ball mount is going to feature a steel construction with a nice black powder-coated finish over the entire unit. It's going to offer superior rust protection. Here on the back side you'll notice that it is a hollow shank.

This unit is designed for 2-inch by 2-inch trailer hitch receivers. It's going to offer a gross towing weight of 7500 pounds with a maximum tongue weight capacity of 750 pounds. A few measurements to go over real fast, the first one is we want to measure from the center of the hitch pin hole to the center of the hitch ball. That's going to give us a measurement of 8-1/4 of an inch. The overall length from end-to-end is going to be about 12-1/2 inches. The measurement we have from the end of the shank, this point right here, to the center of the hitch pin hole is going to be 2-1/2 inches.

If you use this in the rise position, you want to make sure you have enough clearance from the rear most part of your vehicle so the upright portion here. A measurement we can do real quick is measuring from the base of that weld 00:01:58 to the center of the hitch pin hole, that's going to give us a measurement of 4-3/8 of an inch. The unit's going to feature a limited lifetime warranty. It's a really easy installation. All you've got to do is slide the shank of the ball mount into the receiver tube of your hitch. You're going to push it in until you get your pin holes to line up with one another and then you need to install the included hitch pin and clip.

Now you can also get a hitch lock that is going to be sold separately but you can find that right here at That's going to do it for today's review of part number C45042. This is the Curt Class III Ball Mount with a 2-5/16-inch hitch ball. .

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 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 It just happened that we ordered and the shipping occurred over the weekend. Again, fast, courteous service. I highly recommend 375134

- C45042

I have never had a bad experience with, we're a large environmental company and 75% of my purchases are with 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 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 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 Ball Mounts

Do you have a question about this Ball Mount?

  • 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...

  • 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...

  • 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 # C45067. 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...

  • 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...

  • 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...

  • 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...

  • 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...

Do you have a question about this Ball Mount?

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Info for this part was:

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

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