bing tracking image
  1. Trailer Hitch Ball Mount
  2. Blue Ox
  3. Adjustable Ball Mount
  4. Fits 2-1/2 Inch Hitch
  5. Drop - 4 Inch
  6. Rise - 4 Inch
Blue Ox Adjustable Ball Mount with Clamshell for 2-1/2" Hitch - 4" Drop/Rise - 12,000 lbs
etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
Blue Ox

Blue Ox Adjustable Ball Mount with Clamshell for 2-1/2" Hitch - 4" Drop/Rise - 12,000 lbs

Part Number: BLU89XR
In Stock
$233.35
Retail:$319.99
You Save: $86.64
Trailer Hitch Ball Mount
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.
By submitting this form, you understand and agree to our Terms of Sale, Website Terms of Use and Privacy Policy.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
This powder coated steel adjustable ball mount with stainless steel hitch ball lets you tow up to 12,000 lbs with included 2" ball. Use in drop or rise positions. Clamshell adapter is included to provide a 2-5/16" towing option. Great Prices for the best trailer hitch ball mount from Blue Ox. Blue Ox Adjustable Ball Mount with Clamshell for 2-1/2" Hitch - 4" Drop/Rise - 12,000 lbs part number BLU89XR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (18)
  • Q & A (0)
  • Videos (2)
  • Photos

Blue Ox Trailer Hitch Ball Mount - BLU89XR

Highlights

  • 12,000 lbs GTW for Heavy Loads: Handles large campers, boats, or equipment trailers with strength.
  • 4" Drop or Rise for Level Towing: Adjusts height to keep trailers even and stable on any setup.
  • 2" and 2-5/16" Ball Options: Covers common trailer coupler sizes without swapping mounts.
  • Clamshell Adapter Flexibility: Adds a 2-5/16" option by clamping over the 2" ball for quick changeovers.
  • Corrosion-Resistant Steel Build: Stainless ball and coated finish hold up to rust, salt, and grime.
  • Pin and Clip Included for Secure Setup: Locks the mount firmly in the receiver for reliable towing.
Made in USA

Features to know about

Keeps Your Trailer Level: 4" Drop or Rise for a Balanced Tow

Towing different trailers means the coupler height is rarely the same. This adjustable ball mount gives you up to a 4" drop or 4" rise, so you can line things up level every time. The platform slides along the shank and locks in place with dual pins, giving you solid, repeatable adjustments that keep your trailers tracking straight and stable on the road.

Handles Heavy Loads with Confidence: 12,000 lbs Gross Towing Weight

When you’re pulling serious weight, you want the hitch to feel as solid as the truck. This mount can handle up to 12,000 lbs whether you’re using the 2" ball or the 2-5/16" clamshell adapter. The steel shank and stainless steel ball create a strong connection that’s built for demanding hauls, from campers to work trailers, without flex or rattle under load.

Switches Between Ball Sizes Without Losing Clearance

Swapping between trailers with different coupler sizes doesn’t have to be a chore. The included clamshell adapter locks around the 2" stainless steel ball to create a 2-5/16" towing option—no extra tools or loose parts needed. It keeps ground clearance steady since the adapter fits right over the existing ball instead of hanging lower like a tri-ball setup.

Built to Last Through Weather and Road Grime

Towing gear takes a beating from rain, salt, and dust. The black powder coat on the steel shank and the stainless steel hitch ball both resist corrosion that would otherwise eat away at your setup. You can leave it on year-round without worrying about rust buildup or stuck components after a long trip.

Ready to Tow Right Out of the Box

The mount comes complete with a 5/8" pin and clip to secure it in your 2-1/2" receiver and all hardware needed to get rolling. Setup is straightforward—slide it in, pin it, set your height, and you’re ready to tow with confidence every time.

Specs

Application

  • Application: 2-1/2" x 2-1/2" trailer hitch receivers

Weight and Capacity

  • Gross towing weight (When used with 2" ball): 12,000 lbs
  • Gross towing weight (When used with 2-5/16" clamshell): 12,000 lbs

Dimensions

  • Maximum drop: 4"
  • Maximum rise: 4"
  • Incremental height adjustment: 1-1/4"

Warranty

  • Limited lifetime warranty

BXH12241 BlueOx Adjustable Ball Mount with Clamshell - BXH12271 - 4" drop/rise, 2-1/2 receiver, rated to 12K





Video of Blue Ox Adjustable Ball Mount with Clamshell for 2-1/2" Hitch - 4" Drop/Rise - 12,000 lbs
Video Thumbnail Video Player Dialog

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




Video Transcript for Ultimate Overview of the Blue Ox Adjustable Ball Mount with Clamshell for 2-1/2" Hitch

Hi there. I'm Michael with etrailer.com. Today, we're gonna take a quick look at this Blue Ox adjustable ball mount. This is going to slide right into your 2 1/2 inch by 2 1/2 inch trailer hitch receiver on your vehicle. It's gonna provide the two inch ball here for you to hook up to your trailer coupler. This does also have this 2 5/16 inch ball clamshell that will fit right over top of that two inch ball, so that you can accommodate a 2 5/16 inch coupler as well.

Both the ball and the clamshell are going to be a stainless steel construction, so they are gonna hold up really well for you. So, no matter what, which size coupler you're hooking up to, you'll have that same great option. They're both gonna have the same gross towing weight capacity, which is 12,000 pounds. So, either way, just gives you more options of being able to tow different trailers. And with different trailers comes different trailer heights, which is where our adjustable height setting comes in.

So, we'll be able to adjust our height here to accommodate those different trailer heights, make sure that they're gonna stay level as we're towing. Very simple to adjust. Just remove these clips here, and push out the pins. Then we can adjust the ball in that direction, or we can flip this over like so and adjust it like that. So, if we have it in our max rise here, obviously, we'd wanna put the pins in.

From the top inside the edge of our receiver tube, up to where the coupler is going to sit, our max rise is gonna be four inches. If we we're to flip this around and use it in the drop position, our max drop is gonna be four inches as well. So, we have 1 1/4 inch increments of adjustment. So, that will accommodate a wide variety of trailer heights to make sure that your trailer's gonna be nice and level as you're towing down the road, which is obviously very important for making sure that everything's riding properly. The tires are gonna wear properly, and all that sort of important things that a trailer levelness brings.

This does have a black powder coat finish to help resist rust and corrosion. This is made here in the USA, so you can trust it's made it to the high quality standards that we've come to know and trust for products that are made here in the US. Also comes with a limited lifetime warranty. And they include this standard 5/8 inch pin and clip to secure the ball mount to your hitch receiver. So, everything you're gonna need to just put right into your 2 1/2 inch hitch receiver. Hook up to either a two inch ball or 2 5/16 inch ball, coupler. So, that completes our look for today. Again, I'm Michael with etrailer.com. Thanks for watching..

Customer Satisfaction Score:

Ratings & Reviews

4.5

18 reviews
5 Stars
(11)
4 Stars
(5)
3 Stars
(2)
2 Stars
(0)
1 Star
(0)
Review Sort Icon
by:
Nicely built and sharp looking. Haven’t used yet sure it tows just fine. 3 stars as Blue Ox for this price should have used locking pins both on receiver portion and adjustable ball mount. Now I have to buy the locking pins as extras and I’ve been seeing competitors that do provide the appropriate pins at comparable prices.
by:
Great product, used with varying trailers with different hitch heights. The square tubing that slips into the receiver could be a couple of inches longer to better position a mud flap holder, especialy for stock Duramax exhaust. It does work OK.
by:
Absolutely. One our best investments for camping
by:
by:
Great drop hitch. Clamshell is a great idea for quick interchangeability. Cotter pins to adjust the ball up and down that come with hitch are not so great. The cotter pin fell out and the whole second pin was missing before I noticed. Easily replaced with better, and no issues since.
by:
Needed an adjustable heavy duty hitch for several different trailers I use, this one was worth the extra money, easy to adjust. Had bent cheaper hitches in the past. And would replace with the 2” version if I ever go back to a half ton truck
Gwendolyn Y. profile picture
Etrailer Expert

Gwendolyn Y.

3/13/2025

I'm glad that you can use it with all your various trailers. What kind of trailers do you have?

by:
Quality materials and simple design.
by:
I love the product. Love Etrailer. Unfortunately, the product came with damage. There was not enough damage for me to return it, but it was dropped. The paint was chipped, and the drop pins didn't seem to operate correctly.
Katrina D. profile picture
Etrailer Expert

Katrina D.

9/6/2023

I'm sorry to see that your hitch has received some scratches on it due to shipping. This does tend to happen and when it does, we recommend using a Rust-oleum type paint to cover up any scratches and prevent corrosion in the future during use. I have a link below for your reference. I have also sent this information over to our Customer Service Department for them to get into contact with you.

by:
Great hitch. Super heavy duty and quickly adaptable from 2" to 2-5/16" with the clamshell.
by:
Great ball mount that is fully adjustable in 1" increments.
by:
My kid has used it an works as should.
by:
It's a very well made hitch. Highly recommend this hitch
by:
Item arrived in a timely manner and looks great. I haven’t hooked up a trailer but the adjustability and the clamshell adapter look very promising.
by:
by:
by:
by:
by:
18
18
true

See what our Experts say about this Blue Ox Trailer Hitch Ball Mount

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


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jacob T
Video Edited:
Jacob T
Employee Chris R
Video Edited:
Chris R
Employee Dustin K
Video by:
Dustin K
Employee Samuel H
Video by:
Samuel H
Employee Wilson B
Updated by:
Wilson B
Employee Ryan F
Updated by:
Ryan F
Employee Ed W
Installed by:
Ed W
Employee Conner L
Installed by:
Conner L
Employee Michael B
Installed by:
Michael B
Employee Mike S
Written by:
Mike S

At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.