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  1. Trailer Hitch Ball Mount
  2. Weigh Safe
  3. Adjustable Ball Mount
  4. Fits 2-1/2 Inch Hitch
  5. Drop - 8 Inch
  6. Rise - 9 Inch
Weigh Safe Hitch w/ Built-In Scale for 2.5" Hitch, 8" Drop/9" Rise, 18.5K, Aluminum
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Weigh Safe

Weigh Safe Hitch w/ Built-In Scale for 2.5" Hitch, 8" Drop/9" Rise, 18.5K, Aluminum

Part Number: WS56ZR
In Stock
$399.00
Trailer Hitch Ball Mount
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Here's your versatile solution for safe towing! This aluminum hitch has a built-in gauge for measuring tongue weight, comes with two stainless steel tow balls that swap out easily, and includes locking pins to keep everything securely attached. Great Prices for the best trailer hitch ball mount from Weigh Safe. Weigh Safe Hitch w/ Built-In Scale for 2.5" Hitch, 8" Drop/9" Rise, 18.5K, Aluminum part number WS56ZR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (132)
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Weigh Safe Trailer Hitch Ball Mount - WS56ZR

Highlights

  • 18,500 lbs GTW for Heavy Loads: Handles big campers, equipment, and boat trailers with ease.
  • 8" Drop or 9" Rise for Level Towing: Adjusts height to keep different trailers balanced and stable.
  • Built-In Tongue Weight Scale: Shows trailer weight instantly so you can load safely every time.
  • Two Ball Sizes in One Mount: 2" (10,000 lbs) and 2-5/16" (18,500 lbs) balls fit a range of couplers.
  • Stowable Aluminum Design: Flip the platform under the truck to stay out of the way when not towing.
  • Locking Dual Pins for Security: Keeps the mount and platform firmly attached and deters theft.

Features to know about

Checks Your Load Instantly: Built-In Tongue Weight Scale

Balancing a trailer’s load used to mean guesswork or hauling out a separate scale. This hitch takes all that out of the equation. The built-in gauge automatically measures tongue weight the moment you hook up, so you can see if your load needs adjusting before you hit the road. It’s quick, accurate, and gives peace of mind every time you tow.

Keeps Trailers Level and Stable: 8" Drop / 9" Rise Adjustment

Different trailers rarely sit at the same height, but keeping them level is key to smooth tracking and safe braking. This adjustable ball mount slides up or down the shank in 1" increments, providing up to an 8" drop or 9" rise. Once set, secure it with the included locking dual pins for a steady, no-slop connection that stays put even under heavy load.

Handles Heavy Loads Without Strain: 18,500 lbs GTW Capacity

When you’re hauling serious weight, you need hardware that’s just as serious. The solid 6061-T6 billet aluminum shank and platform combine low weight with high strength, rated for 18,500 lbs gross towing weight on the 2-5/16" ball and 10,000 lbs on the 2" ball. With a maximum tongue weight of 2,200 lbs, this mount has the muscle for heavy-duty towing day after day.

Switches Between Trailers Fast: Dual Ball Setup

If you tow different trailers during the week or season, swapping balls should be simple. This design includes two stainless steel hitch balls—2" and 2-5/16"—that change out in seconds. Just pull the retaining pin, switch balls, and reinsert. Both are corrosion resistant and SAE J684 and VESC V-5 compliant for dependable performance across every haul.

Stows Cleanly When Not in Use: Flip-Under Design with Locking Pins

No one likes catching a shin on a hitch that sticks out. When not towing, just remove the locking dual pins and rotate the ball platform to face underneath your vehicle. Reinsert the pins to secure it in stow position. The keyed-alike locking system also includes a hitch receiver lock to deter theft so your setup stays ready whenever you are.

Specs

Application

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

Weight and Capacity

  • Gross towing weight (2-5/16" Ball): 18,500 lbs
  • Gross towing weight (2" Ball): 10,000 lbs
  • Maximum tongue weight: 2,200 lbs

Dimensions

  • Distance from center of hitch pin hole to center of hitch ball (closest to ball): 8-1/2"
  • Distance from center of hitch pin hole to center of hitch ball (farthest from ball): 9-5/8"
  • Maximum drop: 8"
  • Maximum rise: 9"
  • Incremental height adjustment: 1"

Warranty

  • Limited lifetime warranty

WS8-2.5-KA Weigh Safe 8" Drop Hitch w/ 2.5" Shank (10K/18.5K GTWR) w/ Locking Hitch Pin





Video of Weigh Safe Hitch w/ Built-In Scale for 2.5" Hitch, 8" Drop/9" Rise, 18.5K, Aluminum
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Review of Weigh Safe Built in Scale - WS56ZR

Hello neighbors, Steven here with etrailer.com. Today we're taking a look at our Weigh Safe two ball ball mount with a built-in scale for a 2 1/2 by 2 1/2 inch shank with an eight inch drop or nine inch rise. So folks, you're gonna get two balls. The two inch one's rated at 10,000 pound capacity, and the 2 5/16 is rated at 18,500 pounds capacity. Now folks, this ball mount, again, gives you two different ball options and lets you tow trailers with different coupler sizes and different heights. You have a built-in scale, which is gonna give you a safe towing.

It promotes safe towing and helps you balance your trailer. And then it's gonna let you know whether you need to adjust your load before you tow. It's a very simple operation. It automatically provides you that measurement every time you couple to any trailer. Now it's efficient and hassle free.

Eliminates the need for separate or commercial scale use. Now this does have what's called a stowable design. You can take this off, flip it around, and put it back here under the shank while your towing this on the vehicle to keep this area free from hitting anything or just give you a little bit more clearance when you're not towing a trailer. The whole shank here is made of a billet 6061-T6 aluminum and the head housing as well. Now the two balls are a stainless steel construction, they're heavy duty hardened steel, and everything here is gonna be nice, corrosion resistant, rust free, those kind of things.

Now some quick dimensions. From the center of both balls, which are what you have in place here, to the center of this hitch pin hole is 8 1/2 inches. And from the center of the hitch ball to the center of the back hitch pin hole is 9 5/8 inches. Now what I like about this kit is everything's keyed alike. You get four keys individually, and they all work on both the hitch lock here, the hitch pin rather.

And this is a 5/8 inch hitch pin if you're curious. And that very same key will then open this lock, and I can pull up that dual pin lock here. And let's say I want to switch to a 2 5/16 inch ball, okay Very simple, I got the head unit with the scale, there's a closer view of that scale, and now inside here, there's a little ring and a pin. I found it's easier just to flip it. That pin almost falls out by itself at that point, which is nice, but you got a nice little finger pull here if you need it. Now that two inch ball simply comes out. What you got down there is the plunger that underneath in that housing is the hydraulic fluid that makes that scale work up or down. Take the 2 5/16 inch ball, put it in, I'll line up the holes from the back, and I simply push that pin back in place. Now it's in place, that's not going nowhere. Now I can slide this back onto this shank, and I can put my locking pin back in. Helps if I put it in the right way, right Put my locking pin back in, lock it in place, and now I'm ready to go with my 2 5/16 inch ball. It's that simple folks. If I want to flip it over and put it in the rise, same thing. All I'd simply have to do, unlock the pin, pull it out, flip this over to the rise, set this whatever height I need it at, and then I'd be ready to go just that quick. So again, folks, very simple to use, very easy to use, very quick operation. I'm gonna set that under here so it doesn't fall over. And as you can see, very elegant. This, again, is the Weigh Safe two ball ball mount with built in scale. And that's gonna wrap it up folks. I'm Steven, thank you so much for your time. Hope this information's been helpful for you. As always, stay safe while you're towing.

Customer Satisfaction Score:

Ratings & Reviews

4.9

132 reviews
5 Stars
(124)
4 Stars
(2)
3 Stars
(3)
2 Stars
(2)
1 Star
(1)
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by:
I haven't towed with it yet, but out of the box very impressed. It weighs in at approx 18 lbs, so rugged. Using on a 2022 RAM 2500. I was concerned because some drop hitches don't fit well in RAMs due to the rounded corners in the receiver. This one fit perfectly. Shipping was great. Packaging was great. I expect it will tow just fine.
by:
I am really impressed with the quality of the Weigh Safe. Although I haven’t used it yet I think it will perform better than my last hitch that almost failed. I will update after I use it.
Mike L. profile picture
Etrailer Expert

Mike L.

8/17/2026

Please do, we'd love to hear what you think!

by:
Quality product. Much lighter and easier to handle than comparable steel hitch. Scale seems to be accurate based on camper loading and advertised dry tongue weight.
by:
Best trailer hitch ever purchased. Worth every penny.
by:
Great hitch, the 8" drop worked great on my 24 Ford F250 Tremor.
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I haven't used the product yet but the experience has been great dealing with etrailer and it looks/feels like a quality built product.
by:
Great product! Would recommend.
by:
Outstanding product. Build quality is superior.
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Very well built and extremely light…
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Helps distribute weight properly and gives me peace of mind
by:
Very high grade build, this is coming from a 45 years tool & diemaker.
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I was very pleased with the fit and finish of the Weigh Safe hitch and scale. I also purchased a standalone tongue weight scale and was happy to see both of them give me very identical readings. I would like to see an additional pin on the height adjustment pin so it’s not relying solely upon the key lock. I would certainly recommend this hitch for someone that wants to know their trailer tongue weight. Will definitely cut down my trips to the CAT scale and provide a more accurate measurement. I can also move weight around and see direct results on the tongue.
by:
I downloaded the APP. It took me awhile to figure out how the App work. I think I have it figured out now. It would be nice to give a QR code to a video on how the APP set up works. The Hitch overall is made very well.
by:
It's a beast! Heavy duty and everything fits together perfectly. Can't wait to haul my camper with it and see what my actual tongue weight is.
by:
Received my new hitch today and can’t be happier with the build quality. Excellent customer service! Can’t wait to test it out on our next trip.
Lazer S. profile picture
Etrailer Expert

Lazer S.

1/27/2026

Glad you like it, JT! What is the next trip you have planned?

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Info for this part was:

Employee Lindsey S
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Employee Joshua S
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Joshua S
Employee Dustin K
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Dustin K
Employee Chris R
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Employee Steven C
Installed by:
Steven C
Employee Wilson B
Updated by:
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Employee Katherine B
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Employee Evangeline M
Test Fit:
Evangeline M
Employee Kim H
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