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  1. Trailer Hitch Ball Mount
  2. B and W
  3. Fits 3 Inch Hitch
  4. Adjustable Ball Mount
  5. Drop - 7 Inch
  6. Rise - 7 Inch
B&W Tow & Stow 2-Ball Mount - 3" Hitch -7-1/2" Drop, 7" Rise - 21K - Black

B&W Tow & Stow 2-Ball Mount - 3" Hitch -7-1/2" Drop, 7" Rise - 21K - Black

Our Price: $379.00
You Save: $252.85
Trailer Hitch Ball Mount
Shipping Weight: 37 lbs
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Easily stow the ball and mounting platform on this heavy-duty, dual-ball ball mount beneath your hitch for a sleek look when you are done towing. Tow up to 7,500 lbs with the 2" ball or 21,000 lbs with the 2-5/16" ball. Great Prices for the best trailer hitch ball mount from B and W. B&W Tow & Stow 2-Ball Mount - 3" Hitch -7-1/2" Drop, 7" Rise - 21K - Black part number BWTS30040B can be ordered online at or call 1-800-940-8924 for expert service.
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B and W Trailer Hitch Ball Mount

  • Fits 3 Inch Hitch
  • Adjustable Ball Mount
  • Drop - 7 Inch
  • Rise - 7 Inch
  • 2 Inch Ball
  • 2-5/16 Inch Ball
  • Two Balls
  • 21000 lbs GTW
  • Class V
  • B and W
  • Steel Shank - Matte Black
  • Steel Ball

Easily stow the ball and mounting platform on this heavy-duty, dual-ball ball mount beneath your hitch for a sleek look when you are done towing. Tow up to 7,500 lbs with the 2" ball or 21,000 lbs with the 2-5/16" ball.


  • Ball mount with built-in hitch balls lets you hook up your trailer to your tow vehicle
    • Shank slides into hitch receiver
    • Ball provides connection point for trailer coupler
  • Stowable design lets you store ball and mounting platform underneath your vehicle
    • Remove pins holding ball mount platform in place on shank
    • Flip platform underneath the hitch
    • Reinsert pins and clips to secure ball mount platform for travel
  • Adjustable height lets you tow trailers of different heights with the same vehicle
    • Slide ball mount up or down along shank and secure in place with included pins and clips
  • Anti-theft design ensures ball mount platform can't be removed when Tow & Stow is installed in hitch
    • No additional locks required to prevent platform and balls from being removed
  • 2 Different-size hitch balls let you tow trailers with different coupler sizes
    • To switch ball, simply remove pin, rotate balls, and reinsert pin
  • Dual-process chrome plating on balls provides excellent rust resistance
  • Black powder coated shank is corrosion resistant
  • Stainless steel pins create sturdy, rust-resistant connections
  • Durable steel construction with high yield tubing offers superior strength
  • Hitch pin and clip or hitch lock sold separately
  • Made in the USA


  • Application: 3" x 3" trailer hitch receivers
  • Gross towing weight:
    • When used with 2" ball: 7,500 lbs
    • When used with 2-5/16" ball: 21,000 lbs
  • Distance from center of hitch pin hole to center of hitch ball:
    • Hitch pin hole closest to ball: 9-1/4"
    • Hitch pin hole farthest from ball: 10-3/8"
  • Distance from center of hitch pin hole to pin hole in mounting block:
    • Pin hole closest to mounting block: 3-3/4"
    • Pin hole farthest from mounting block: 4-7/8"
  • Maximum drop: 7-1/2"
  • Maximum rise: 7"
  • Incremental height adjustment: 1-3/8"
  • Limited lifetime warranty

An illustration shows the eleven inch clearance level needed between the ground and B and W Tow and Stow hitch.

Note: To avoid the Tow & Stow hitting steep driveways or curbs, we recommend at least 11" of clearance between the ground and the lowest point of the drop hitch, as seen above.

The B&W Tow & Stow adjustable ball mount lets you tow a variety of trailers with different tongue heights. Having both a 2" ball and a 2-5/16" ball allows for even more versatility, making this the ultimate go-to ball mount if you own multiple trailers.

Easily Adjusts and Stows

B&W Tow & Stow Ball Mount Operation

To switch the hitch ball, simply remove the pin holding the balls in place and rotate the entire block that the balls are mounted on until the ball you want to use is on top. Then replace the pin to secure the block in place.

Adjusting the height of the ball is just as easy. Remove the pins holding the ball mount platform in place and slide the platform up or down along the shank to the desired position. Once you have found the correct height, reinsert the pins and replace the clips.

When you're not towing, you can flip the ball mount platform around and stow it beneath your hitch so that you won't bang your shins. Just remove the pins to slide the ball platform down along the channel and up the back side so that the hitch balls face towards your vehicle. Then replace the pins.

Built-In Anti-Theft System

The Tow & Stow ball mount features a channel that runs along both sides of the shank. This channel not only allows you to slide the ball mount platform up and down to adjust the ball height, but it also prevents removal of the platform when the ball mount is installed, which will help prevent theft of your trailer.

Single Dimensions

A slot is cut into the adjustment channel near the top of the shank. To remove the ball mount platform from the shank you will need to remove the entire ball mount from your hitch. Then remove the pins that hold the platform in place. Flip the platform around to the stowed position on the rear of the shank, and then slide it up until the center pin lines up with the slot in the shank. Pull the platform out towards the rear of the shank until the pin pops out of the adjustment channel.

When the Tow & Stow is secured in your hitch receiver, you will not be able to remove the ball mount platform. This is because the slot in the shank is positioned in such a way that the collar on your hitch will block the pin on the platform from being able to leave the channel. Even if the pins holding the ball mount platform in place are removed, the platform will still be confined to this channel. So, as long as a hitch lock is used to secure the entire ball mount in your hitch receiver, and a coupler lock is used to prevent your trailer's coupler from being disengaged from the ball, your trailer will be secure.

How to Measure Drop on Adjustable Ball Mount

TS30040B B and W Stow and Tow Dual Ball Mount - Model 8 - 2" Ball and 2-5/16" Ball - Black

Item # BWTS30040B

California residents: click here

Customer Satisfaction Score:

Customer Reviews

B&W Tow & Stow 2-Ball Mount - 3" Hitch -7-1/2" Drop, 7" Rise - 21K - Black - BWTS30040B

Average Customer Rating:  4.9 out of 5 stars   (3729 Customer Reviews)

Easily stow the ball and mounting platform on this heavy-duty, dual-ball ball mount beneath your hitch for a sleek look when you are done towing. Tow up to 7,500 lbs with the 2" ball or 21,000 lbs with the 2-5/16" ball.


I've been towing with this for a year and I love it. The convenience of being able to stow it away without taking it off is fantastic. The finish is holding up pretty well so far.


Absolutely love this product , looks nice aesthetically when stowed , and ease of choice of hitch balls !! Put one lock one and food to go ! Thank you , great ptoduct



Best accessory you could purchase , love it , easy to use and still looks great today , thank you for a great product


This is a serious hitch!! Well designed and built. Easy to install and change out. You only need a locking hitch pin on the receiver as the ball and carrier are machined into the hitch. Super fast delivery from etrailer. Great company and I buy from them for all my trailer and truck needs.


You guys are awesome, informed me on every step of the process from receiving the order to delivery. This hitch works great with the ford Tremor.

G. Elliot


good solid hitch, the height adjustment is great for this truck.


What a great ball mount! This solidly built mount makes it so easy to switch between ball sizes, it conveniently saves time. When you’re not towing it tucks neatly out of the way.



After a year of using this hitch, I am completely satisfied! It is rugged, heavy duty, and is as easy as ever to use. I would highly recommend this to anyone who needs more than one ball size.


Love the fact that i can pull everything i need and adjust height to pull the correct height on the different trailers i have with 1 hitch. THANK YOU B&W for making a all in one item and building it the best from any competion.


One of the best drop shanks around

by: 08/22/2023

Looks great with the infinite pins


I pull different trailers during the weeks and I am constantly changing heights and balls size. This hitch has been perfect. It is everything I expect a hitch to be. We bought one for each of our trucks. We replaced the pin clips with ones clips that have the rubber pull tab. They should come standard with this hitch. We are very pleased with the quality of this product.


What a beast of a hitch. Fun fact: I put this one my truck when I first received it to see how it looked. It’s a heavy, solid steel monster easily weighing 40+ lbs. i drove to the local hardware store in the Seattle area and it was stolen while I was in the store. I didn’t put a locking pin in yet because I didn’t expect to go to the store. Long story short, the thief posted it for sale online and I met up with him to…steal it back. So I have the hitch, locked to my truck, with thousands of miles on it now.


high quality


I love the hitch but the pins you use to raise and lower the hitch started rusting. I don't leave this hitch on my truck. It's actually rarely used and is kept in my garage.


Excellent customer service and super fast shipping! Lifelong customer with etrailer Corporation!


Arrived within days of ordering in excellent condition. Can already tell I'll have no issues and it will perform as advertised!


Ordered the incorrect shank diameter and drop length. Service representative was knowledgeable of the item I needed, placed the order for the new one, explained the return procedure to include emailing the return authorization, all done in a friendly, professional attitude. Received the correct receiver hitch within one day. Representative made a mistake on my part as painless as possible.





Shipped promptly, packaged well, stout and heavy duty. Looking forward to many, many miles of towing


The entire process through entailed was simple fast and easy! The product arrived faster than expected and as described. It feels study and solid. I will use it this weekend for the first time. Thank you!


I just received the Stow and Tow 3" two ball hitch yesterday so I haven't even had a chance to use it yet. Actually, I don't even have a trailer that I'll be using it with but wanted to be prepared should I have the need.

The five star rating reflects the customer service I received from etrailer. The pricing, the ordering process and the prompt shipping and tracking were absolutely first class. I've bought many things from them and each time I've been extremely pleased!

As for the Stow and Tow, my initial opinion is that it is as advertised and depicted in all of the etrailer photos and videos. Can't wait for the opportunity to put in action!


Great product, well built and a good looking hitch.


I've used B&W in the past. I love the ability to hide the hitch when not in use.


My receiver hitch arrived in perfect condition right on time


Sto and go can't be beat! Perfect ride height evey time.


When I was shopping for a multi size ball mount I only looked seriously at B&W. They make a high quality product that does exactly what it is supposed to do. I have a 5th wheel B&W hitch and am absolutely sold on the brand. Made in America.


The only thing that was better than this B&D Tow and Stow Hitch from etrailer was the Customer Service that they provided. They checked on my purchase one year after I bought it to make sure we were still satisfied. Good Team. Keep it up guys.


Excellent product B&W have been in the towing business a long time. Knew I would get a quality product. I think it was a better option than getting sleeves for the new 3 in. hitch. Will be used to haul a 22' deck over tilt with skid loader and sea containers.

Show More Reviews

See what our Experts say about this B and W Trailer Hitch Ball Mount

  • Height of B&W Tow & Stow 2-Ball Mount BWTS30040B
    The B&W Tow & Stow 2-Ball Mount part # BWTS30040B measures 11.125" from the top of the vertical rail to the bottom.
    view full answer...
  • Availability of Adjustable Ball Mount that will Fit a 3 inch Trailer Hitch
    We have some options for fitting a 3 inch trailer hitch like what you have on your Ford truck. I attached a link to a page that has all of them. One of the more popular options is the B&W Tow & Stow # BWTS30040B.
    view full answer...
  • Recommended Ball Mount for 2017 Ford F-250 with 3 Inch Hitch Receiver
    In order to determine how much drop you need, you will measure from the top inside edge of your trailer hitch receiver on your 2017 Ford F-250 to the ground. Then you will measure from the ground to the bottom of your trailer coupler when it is level. The difference between these measurements is the drop you need. I've attached an article to assist and have linked 3 inch ball mount options. I personally recommend the B&W Tow & Stow 2-Ball Mount - 3" Hitch -7-1/2" Drop, 7" Rise - 21K...
    view full answer...
  • Picking Out Adjustable B and W Ball Mount for 2017 Ram 2500 with 3 inch Hitch
    For your 2017 Ram 2500 that has the factory 3 inch hitch we have a couple B and W Tow n Stow adjustable ball mount options available. We have the part # BWTS30037B which can do a drop of up to 4-1/2 inches and we have the part # BWTS30040B which can do a drop of up to 7-1/2 inches. So to determine how much drop you'd need you'd need to take two measurements. Measure from the top of the hitch opening down to the ground on your truck and then measure from the bottom of the coupler lip to...
    view full answer...
  • Ball Mount For 3" Hitch With A 1-7/8" And 2-5/16" Ball
    We do have the B&W Tow & Stow 3-Ball Mount # BWTS30049B for a 3" hitch. This has a 1-7/8", 2" and 2-5/16" ball and is rated for up to 21,000 lbs. That one is the 7" rise/drop, we also have the # BWTS30048B for a 4" drop/rise
    view full answer...
  • Does B&W Make a 2-Ball Ball Mount for a 3 Inch Receiver
    B&W does indeed offer a Tow & Stow 2-ball mount for a 3 inch receiver. Part # BWTS30040B includes a 2 inch and a 2-5/16 ball, and is adjustable up to a 7-1/2 inch drop or a 7 inch rise. Part # BWTS30037B also includes a 2 inch and a 2-5/16 inch ball and is adjustable up to a 4-1/2 drop or a 4 inch rise. I've linked to product description videos for both Tow & Stow ball mounts.
    view full answer...
  • Adjustable Ball Mount Recommendation for 3 inch Hitch that Has Two Balls
    For an adjustable ball mount with 2 hitch balls that fits a 3 inch trailer hitch like what you have you'd want the B&W Tow & Stow part # BWTS30040B which comes with a 2 inch and 2-5/16 inch hitch ball and a 21k capacity when used with the larger ball size.
    view full answer...
  • Trailer Hitch Receiver Lock for a 2016 Ram 2500
    Our brand of hitch locks, such as # e98880 for 2 inch hitches, have proven to be reliable and are highly rated by our customers. They have several options for different size hitches and other applications. I have included a link to the options for you.
    view full answer...
  • High Capacity Trailer Hitch Recommendation for 2018 Ram 5500
    The Curt hitch part # C15800 is the highest capacity hitch we offer for your 2018 Ram 5500 cab and chassis. The hitch has a 20,000 lb trailer capacity and a 2,700 lb tongue weight capacity. The hitch is also made in the USA and has a 2-1/2 inch hitch opening which is very common for heavy duty ball mounts like what you'd need. For and adjustable ball mount with two hitch ball sizes we have the B&W Tow and Stow part # BWTS30040B which has a 21,000 lb towing capacity.
    view full answer...
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  • Availability of Keyed Alike Lock Set for B and W Tow and Stow Ball Mounts
    For the B and W Tow and Stow Ball Mounts like the part # BWTS30040B that you referenced we do have lock sets that lock the platform and the hitch pin and use all the same key with the part # 34061775-D. This fits the Tow and Stow models that fit 2 inch and 2-1/2 inch hitches.
    view full answer...
  • Can I Replace the Ball Mount of a 3 Inch B&W Tow and Stow for a 2-1/2 Inch Ball Mount?
    No, you can't. I contacted B&W this morning and was told they do not sell the components of their tow and stow ball mounts separately. While you are most likely correct and they are probably interchangeable, B&W wants you to buy a new one. It sounds like you have either item # BWTS30037B or item # BWTS30040B. The comparable 2-1/2" Tow and Stow two ball ball mounts are listed below: B&W Tow & Stow 2-Ball Mount - 2-1/2" Hitch - 7-1/2" Drop/Rise item # BWTS20040B B&W Tow & Stow 2-Ball Mount...
    view full answer...
  • Weight of Weigh Safe 180 Hitch 2-Ball Mount # LTB6-3
    The Weigh Safe 180 Hitch 2-Ball Mount # LTB6-3 has a total weight (with the ball platform attached) of just 22 pounds. The shank by itself is only 8 pounds. You are right that the aluminum shank allows it to weigh less than all steel options such as the B&W Tow and Stow # BWTS30040B that weighs closer to 40 pounds. I have attached a short video demonstration that you can check out as well.
    view full answer...
  • Can Rock Tamer for 3 inch Hitch be Used with B and W Tow n Stow Ball Mount for 3 inch Hitch
    Yes a Rock Tamer Mud Flap for 3 inch hitch part # RT54FR would have enough clearance to fit on the B and W Tow n Stow for 3 inch hitches part # BWTS30040B.
    view full answer...
  • Adjustable Ball Mount for 3 inch Hitch on GMC Sierra 3500
    For a 3 inch hitch that is 19-1/2 inches from the top of it down to the ground you'd want a ball mount with about 6-7 inches of drop like the B&W Tow & Stow 2-Ball Mount - 3" Hitch -7-1/2" Drop, 7" Rise # BWTS30040B.
    view full answer...
  • Can the Weigh Safe 3 180 2-Ball Mounts Be Stowed
    I do have an option for you but the Weigh Safe 3" 180 2-Ball Mounts are not stowable, only the 2" and 2.5" models are. If you want stowable then you'll have to go with the B&W Tow & Stow 2-Ball Mount part # BWTS30040B. The other main difference is that the Weigh Safe is made of aluminum and the B&W is made of steel which is stronger.
    view full answer...
  • What Hitch Pin Diameter Does B&W Tow & Stow 2-Ball Mount # BWTS30040B Use
    3 inch hitches like what the B&W Tow & Stow 2-Ball Mount # BWTS30040B was designed for use the same hitch pin diameter as the smaller 2 inch and 2.5 inch hitch size which is 5/8 inch diameter. For a locking hitch pin to use with this we have the Weigh Safe part # WS05 which would work great. I attached review videos for the hitch lock and the ball mount for you to check out as well.
    view full answer...
  • Adjustable Ball Mount for 3 Inch Hitch on 2018 Ram 2500
    We do have adjustable ball mounts that fit the 3" hitch on your 2018 Ram 2500 but there is not an option for an adjustable ball mount from Curt at this time; instead I strongly recommend checking out the B&W Tow & Stow 2-Ball Mount # BWTS30040B. The Tow & Stow will fit your 3" hitch and will give you a maximum drop of 7-1/2" and maximum rise of 7". It comes with a 2" hitch ball that has a maximum capacity of 7,500 lbs and a 2-5/16" hitch ball with a maximum capacity of 21,000 lbs. The...
    view full answer...
  • Hitch Lock Recommendation for 3 inch Trailer Hitch of 2018 Ford F-350
    For a hitch lock to fit a 3 inch trailer hitch like what you have you would want the Hitch lock part # FA86-00-3160. This lock is designed to fit the larger 3 inch hitch size you have so it would work well.
    view full answer...
  • Locking Hitch Pin For B&W Tow & Stow 2-Ball Mount # BWTS30040B
    The B&W Tow & Stow 2-Ball Mount, # BWTS30040B uses a hitch pin of 5/8 inch diameter. For a compatible locking hitch pin, I suggest the Weigh Safe, # WS05. Please note the linked product review and installation videos below.
    view full answer...
  • Recommended Made In USA Ball Mount for 3" Hitch
    I have some great options that check all the boxes; 3" hitch, 2-5/16" hitch ball, 6" drop, and made in the USA. I have attached these for you below but bear in mind they are all adjustable. 180 Hitch 2-Ball Mount w/ Stainless Balls part # LTB6-3 BulletProof Hitches Adjustable 2-Ball Mount part # HD306 B&W Tow & Stow 2-Ball Mount part # BWTS30040B Gen-Y Adjustable 2-Ball Mount part # 325-GH-1723 I recommend the B&W Tow & Stow due to the stowaway feature.
    view full answer...
  • Is There a B&W Tow & Stow For 3 Inch Hitch With 21,000 lb Capacity
    So there is a B&W Tow & Stow that fits a 3 inch hitch and has a capacity up to 21,000 lbs, but not with a pintle hook. I checked directly with B&W to verify this for you. The 21k capacity is for the included 2-5/16" hitch ball, and if you were okay with that, you can choose from the following, depending on the maximum rise or drop you need: - Max 4-1/2" Drop, 4" Rise: B&W Tow & Stow 2-Ball Mount - 3" Hitch # BWTS30037B - Max 7-1/2" Drop, 7" Rise: B&W Tow & Stow 2-Ball Mount - 3" Hitch...
    view full answer...
  • Recommended Hitch Lock and Ball Mount Compatible with 3 Inch Hitch with Reducer Sleeve
    The Flash E Series Adjustable 2-Ball Mount w Chrome Balls # FA42-00-2800 has a 5/8 inch pin hole diameter. I believe you will be able to use the Fastway Trailer Hitch Lock and Adjustment Pin Lock Set for Flash E Series Ball Mounts # FA86-00-3660 for a locking combination. The hitch lock is 3-5/8 inches from inside to inside so as long as your 3 inch receiver is under that 3-5/8 at the outer edges you will be fine. You can alternatively use the Draw-Tite Trailer Hitch Lock - 3" Hitch...
    view full answer...

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Info for this part was:

Employee Lindsey S
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Expert Research:
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