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CURT

Curt Ball Mount for 2" Hitches - 2-3/4" Rise, 4" Drop - 9-3/8" Long - 10,000 lbs

Part Number: C45311

4008 Reviews | 6 Questions

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$49.20

Retail:$72.85

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Product Images

curt trailer hitch ball mount fixed drop - 4 inch rise 3 c45311

curt trailer hitch ball mount no drop - 4 inch rise 3

curt trailer hitch ball mount fixed 10000 lbs gtw

curt trailer hitch ball mount fixed no for 2 inch hitches - 2-3/4 rise 4 drop 9-3/8 long 10 000 lbs

curt trailer hitch ball mount fixed 10000 lbs gtw for 2 inch hitches - 2-3/4 rise 4 drop 9-3/8 long 10 000

curt trailer hitch ball mount no 10000 lbs gtw c45311

curt trailer hitch ball mount drop - 4 inch rise 3 10000 lbs gtw c45311

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In Use/Installed

0 trailer hitch ball mount curt no drop - 4 inch rise 3 c45311

0 trailer hitch ball mount curt fixed drop - 4 inch rise 3 for 2 hitches 2-3/4 9-3/8 long 10 000 lbs

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Checking Out the Curt Ball Mount for 2" Hitches

Curt Ball Mount for 2" Hitches Spec Review

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Corrosion-resistant, black powder coated ball mount measures 9-3/8" from center of hitch pin hole to center of ball hole. Use it in either the drop or the rise position to fit your application. Hitch pin and clip sold separately. Great Prices for the best trailer hitch ball mount from CURT. Curt Ball Mount for 2" Hitches - 2-3/4" Rise, 4" Drop - 9-3/8" Long - 10,000 lbs part number C45311 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.

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Reviews (4008)
Q & A (0)
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CURT Trailer Hitch Ball Mount - C45311

Highlights

10,000 lbs GTW for Heavy Loads: Handles large trailers or boats with 1,000 lbs tongue weight capacity.
4" Drop or 2-3/4" Rise for Level Towing: Lets you match trailer height for steady, even hauling.
9-3/8" Shank Length for Setup Flexibility: Positions the ball mount to suit different trailer couplers.
Steel Build for Lasting Strength: Solid construction helps support heavy-duty towing tasks.
Gloss Black Powder Coat Resists Corrosion: Protects against rust and road grime over time.
Works with 2" Hitch Receivers: Fits standard setups using a 5/8" pin hole (pin and clip sold separately).

Features to know about

Keeps Your Trailer Level: 2-3/4" Rise or 4" Drop

When your trailer rides uneven, it can throw off balance and stability. This ball mount makes it easy to dial in the right height, offering a 2-3/4" rise or 4" drop so your trailer stays level. That means straighter tracking, smoother braking, and an overall steadier tow with every hookup.

Built for Serious Loads: 10,000 lbs GTW Rating

Heavy hauls demand gear that won’t flex or fail. This mount is rated for 10,000 lbs gross towing weight and 1,000 lbs tongue weight, giving you the confidence to pull large trailers, boats, or campers without worry. The sturdy steel construction stands up to tough use and stays dependable trip after trip.

Resists Rust and Wear: High-Gloss Black Powder Coat

Road salt, rain, and grime can take a toll on towing gear. The corrosion-resistant, high-gloss black powder coat finish protects the steel from rust while keeping it looking clean. It’s the kind of finish that holds up through years of everyday use and rough weather without flaking or peeling.

Solid Hitch Fit: 9-3/8" Shank for Secure Connection

Nothing’s worse than a loose or rattling hitch setup. The hollow steel shank measures 9-3/8" from the center of the hitch pin hole to the center of the ball hole, giving you a solid fit in your 2" x 2" receiver. Once pinned with a standard 5/8" hitch pin (sold separately), it locks in tight for smooth, steady towing with no drama.

Simple and Dependable: Fixed Ball Mount That Just Works

This fixed design keeps towing straightforward—no moving parts, no adjustments, just a solid connection every time. Hook up your hitch ball (sold separately) through the 1-1/4" diameter hole, slide it into place, secure it with a pin and clip, and you’re ready to tow with confidence.

Specs

Application

Application: 2" x 2" trailer hitch receivers

Weight and Capacity

Gross towing weight: 10,000 lbs
Tongue weight: 1,000 lbs

Dimensions

Length: 9-3/8" from center of hitch pin hole to center of ball hole
Rise: 2-3/4" from top of inside of hitch opening
Drop: 4" from top of inside of hitch opening
Ball hole diameter: 1-1/4"
Pin hole diameter: 5/8"

Warranty

Limited lifetime warranty

45311 Curt Class 4 Ball Mount - Heavy Duty 2" Square Ball Mount - 2-3/4" Rise, 4" Drop

Similar to Draw-Tite 2753

Customer Satisfaction Score:

99% were satisfied with this product

1% of customers were not satisfied

Wrong item was ordered

1% of customers were not satisfied

Wrong item was ordered

4.8

4008 reviews

5 Stars		(3615)
4 Stars		(265)
3 Stars		(60)
2 Stars		(28)
1 Star		(40)

by: Gregory 10/25/2025

Very nice product. I wish the mounting hole for ball was smaller.

by: Josh J 11/24/2020 One Year Later

This is a high quality product that works great for pulling our side-by-side trailer. However, the shank (rectangular tube that inserts into the vehicle receiver) is quite long. This could cause issues if the chains on your trailer are fairly short because it pushes the trailer further back from the vehicle. Other than that, this is a great product.

by: Brooks L 03/30/2019

etrailer is an excellent source for any trailer hitch towing needs. Greg S. whom took my order was very pleasant to work with and knows his business. I had an email notification within about an hour from placing the order that my part had been shipped and contained the easiest shipping tracking information I have ever used. I ordered the part on 3/28/2019 and our USPS mail man delivered the part on 3/30/2019. You could not ask for any better service than that. The part is quality and finish is excellent. etrailer will be my first choice for any future trailer hitch towing needs.

by: Charles 09/14/2023 One Year Later

THE BALL MOUNT OR LET'S SAY STEPPING UP TO THIS CURT SIZE BALL MOUNT PROVIDED GREATER STABILITY, IT WAS A SOLID FIT WITH LITTLE TO NO MOVEMENT, JUST LOVING IT!!!!

by: Captain Bob 12/05/2017

Bought this to tow a 7500 lb boat trailer. This ball mount is beefy. The welding and finish are excellent and made in the USA.

by: James P. 11/26/2018

First time ordering from etrailer......great experience. They made sure I got the proper equipment for my towing, and it arrived in 2 days. Excellent quality....I'll be ordering again from them!

by: Daniel 04/30/2020

Good product. Trailer sits level. Seems to be good quality. Fast shipping.

by: Colin 11/18/2020

Exactly what I needed at a great price. These are also very nicely finished, good looking parts. Only the best from etrailer.

by: John A. 04/25/2019 One Year Later

I use this draw bar with my 7800 Tritoon Trailer. To date it has worked as designed.

by: Matt 02/07/2023

I really enjoyed the whole process. First time ordering and had no issues. I like how specific the tracking information was presented and the product arrived a day early and undamaged. Will definitely shop again!

by: Joseph 12/31/2021 One Year Later

Heavy duty! Great powder coat.

by: Brett 11/15/2019

Fantastic price and arrived at my doorstep two days after I placed my order. Couldn't be happier.

by: LD 10/05/2017

I just installed it today it appears to be extremely heavy duty and well-made. Time will tell.

by: Bob 12/17/2017

Info on site made it easy to select the right product I needed for my application. Exactly what I was looking for. Great build quality.
Product was delivered quickly and in great shape.
Thanks etrailer

by: Steve 09/15/2023

I have bought from E trailer before. They have the specific tow rated item I am looking for that I can't find locally.

by: Tim 07/08/2020

Perfect for me I know I will never have a failure

by: David 04/08/2021 One Year Later

Does what it's supposed to and also great for bruising shins. I had a different brand that rusted and lost all paint after a year, wouldn't do that again. This one seems to retain paint better and not get all rusty.

by: Brett 01/15/2019 One Year Later

Good quality. To note: I have a 1inch lift on my 1500 and the ball point is lower than ideal. Best suited for trucks with a 3 inch lift or more.

by: Kevin 09/18/2024

Kevin One Year Later

9/19/2025

Excellent product!

by: John 05/24/2021 One Year Later

Works great seems heavier than other brands I have used in the past.

by: Eric 06/03/2022

Seems well made with a heavy protective coating. Coating had a few chips, probably due to the ball shipped in the same box and not kept separated. I’ll treat these spots with POR-15.

by: Robert 08/05/2021

Excellent item. High quality, fair price.

by: Daniel 09/29/2022

very well made equipment

by: Joseph 01/18/2020

Arrived on time and looks great on my 2018 Silverado

by: George 10/07/2018

Products were as advertised and shipment was faster than expected/

4008

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

Do you have a question about this Trailer Hitch Ball Mount?

Where to Measure to Determine Correct Rise/Drop for Ball Mount
Since there aren't any zero rise/drop ball mount options (shockingly) you might verify that your setup was measured in the right spots. You'd want to measure from the bottom of the coupler lip down to the ground when the trailer is level and then from the top of your hitch opening down to the ground. The part # D320 has a drop of 2 inches and comes with the tab needed for friction sway control. This probably would be close enough to what you'd need.
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Shank Length of Curt C45311 Class III Ball Mount
The distance from the center of the hitch pin hole to the gusset welded onto the Curt # C45311 is 4 inches, as shown in the provided photo. If you're wanting something with a longer shank for additional clearance, I'd recommend the Curt # C45270 which would offer a similar rise/drop but with a shank that's 8 inches long, measured from the center of the hitch pin hole to the closest part of the ball platform. The ball mount is rated for 7500 lbs. I've also provide a photo of this ball...
view full answer...
What Ball Mount Is Needed for a 4x8 U-Haul Cargo Trailer with a 2013 Hyundai Santa Fe
The etrailer.com Trailer Hitch Receiver part # E98841 when we installed it on a 2013 Hyundai Santa Fe was 13" from the ground to the top inside edge of the receiver tube. I called U-Haul and they said that the coupler height of the 4x8 cargo trailer is around 16" from the ground to the bottom of the coupler while level therefore you will need to use the Curt Ball Mount for 2" Hitches part # C45311 with the 2" Hitch Ball part # A-90.
view full answer...
How to Determine Ball Mount Rise or Drop for 2018 Ford Edge
Thanks for the order of the Draw-Tite Trailer Hitch # 75234 and when we test fit it on a 2018 Ford Edge, you are correct that the distance from the top of the receiver to the ground was 12-1/2". In regards to the height of the Draw-Tite # 36501, when we test fit it on a 2009 Ford Escape the top of its receiver to the ground was 16-3/4", though that's not a height you will want to use to determine the ball mount you'll need. In order to choose the correct ball mount, there are a couple...
view full answer...
Ball Mount with 4 inch Drop, 2 inch Ball, and 10k Weight Capacity
I have a similar solution that will work great for you but we don't have exactly what you are looking for with a hitch ball installed as well. So instead the best way to accomplish what you are looking for is with a fixed ball mount part # C45311 which has the 4 inches of drop, 10k capacity, and fits a 2 inch hitch. For a 2 inch ball to then fit this you'd want the # A-90 which also has a 10k capacity and you'd be set.
view full answer...
Compatibility of Curt Trailer Hitch and Additional Towing Accessories for 2016 BMW X1
I will go down the list of products that you mentioned in terms of their compatibility with each other. The Curt Trailer Hitch Receiver # C13303 referenced in your question is a Class III trailer hitch with a 2 inch receiver opening. It is confirmed to fit your 2016 BMW X1 and will work very well. The Curt Euro Style Drawbar # C45572 that you also referenced is a Class II ball mount designed for 1-1/4 inch receivers. This will not be compatible with the 2 inch receiver on the above...
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Do you have a question about this Trailer Hitch Ball Mount?

Info for this part was:

Expert Research:

Mike L

Edited by:

Lindsey S

Installed by:

Cole B

Installed by:

Ryan G

Written by:

Chelsea B

Video Edited:

Chris R

Updated by:

Wilson B

Updated by:

Kristina F

Updated by:

Mike S

Updated by:

Isabelle B

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