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  4. Fits 2-1/2 Inch Hitch
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  6. 2-1/2 Inch to 2 Inch
Adapter Sleeve for Fastway and Diversi-Tech 2" Locking Ball Mounts to 2-1/2" Receivers

Adapter Sleeve for Fastway and Diversi-Tech 2" Locking Ball Mounts to 2-1/2" Receivers

Item # DTADP25-SS
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Use your Fastway or Diversi-Tech 2" locking ball mount with your 2-1/2" trailer hitch receiver. Heavy-duty steel is durable and corrosion resistant. 1-636-306-4830 to order Fastway hitch adapters part number DTADP25-SS or order online at Free expert support on all Fastway products. Guaranteed Lowest Price and Fastest Shipping for Adapter Sleeve for Fastway and Diversi-Tech 2" Locking Ball Mounts to 2-1/2" Receivers. Hitch Adapters reviews from real customers.
  • All Info
  • Reviews (14)
  • Q & A (0)
  • Videos (2)
  • Photos
  • Why etrailer?

Fastway Hitch Adapters - DTADP25-SS

  • Hitch Reducer
  • Fits 2-1/2 Inch Hitch
  • No Extension
  • 2-1/2 Inch to 2 Inch
  • Ball Mounts
  • Fastway

Use your Fastway or Diversi-Tech 2" locking ball mount with your 2-1/2" trailer hitch receiver. Heavy-duty steel is durable and corrosion resistant.


  • Designed to let Fastway (Diversi-Tech) DTLBM and DTALBM series ball mounts fit into 2-1/2" receivers
  • Includes two sets of hitch pin holes
    • One set lines up with the locking pins of the ball mount
    • One set lines up with the hitch pin holes in the 2-1/2" receiver
  • Durable steel construction with black painted finish
  • Made in the USA


  • Application: 2-1/2" x 2-1/2" trailer hitch receivers
  • Overall length: 6-1/4"
  • 1-Year limited warranty

Dimensions of Adapter Sleeve

DT-ADP25-SS Fastway (Diversi-Tech) Steel Reducer Sleeve for 2" x 2" Ball Mounts to 2-1/2" x 2-1/2" Hitch Receivers

Video of Adapter Sleeve for Fastway and Diversi-Tech 2" Locking Ball Mounts to 2-1/2" Receivers

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

Video Transcript for Fastway and Diversi-Tech Locking Ball Mounts Adapter Sleeve Review

Adam: Hi everyone. Adam Today we're going to be taking a look at the Fastway hitch receiver adapter. Basically it's just going to be a sleeve that's going to go inside your 2-1/2" hitch receiver, and it's going to convert it to a 2" so you can use it with the Fastway or Diversi-Tech locking hitch ball mount. It was designed specifically for that, so you're going to be able to utilize both the locking hitch pin that you can buy here at, and also the locking mechanism on your ball mount.So we can actually just slide the sleeve in there, because there is two holes and they are evenly displaced throughout our two here. We can put in our locking hitch pin in there first just to lock that into place.

This does not come with the sleeve. It is sold separately. That's going to lock that into place. Once we do that we can take our ball mount, and this is the Fastway locking ball mount. You can see we can line up that little cylinder there and once we do that we have keys that come with this ball mount and we're going to rotate it.

You can see how that kind of slides out and that's going to lock your ball mount into your hitch.Once you do that, you can plug this up, everything's locked into place and now you're ready to tow. So if you have a Fastway adjustable ball mount, or even the fixed locking ball mounts and the same goes for our Diversi-Techs, the sleeve is going to be what you need to get it. A lot of you guys are wondering what's the difference between this sleeve compared to just another random brand that we carry here at etrailer We do carry a lot but the only difference is, is there are going to be these two circles here. The first one's going to be utilized for our lock, and the back one is going to be able to hold that hitch pin and line up with our holes on our hitch receiver here.The overall length of this whole entire sleeve is going to be about 6-1/4" long and it's actually pretty symmetrical. So we have about 2-1/8" from our end to the middle of our hitch pin hole here and then 2-1/8" from here to here.

And then the same on this side, 2-1/8" from the very end to the middle of our hitch pin hole here.This sleeve is not going to work with any of your other hitch mounted accessories. As you can see here, our hole is lined up so we will be able to get our pin through, but we won't be able to get a pin through here to lock that hitch mounted accessory into this sleeve. So this sleeve will differentiate from the others we carry on the website just because of the location of the holes. And of course on this one there's two of them. So if you have a hitch like this or a Diversi-Tech, this is going to be the sleeve for you.

Well everyone, that's going to do it for our look at the Fastway hitch sleeve adapter.

Customer Reviews

Adapter Sleeve for Fastway and Diversi-Tech 2" Locking Ball Mounts to 2-1/2" Receivers - DTADP25-SS

Average Customer Rating:  4.4 out of 5 stars   (14 Customer Reviews)

Use your Fastway or Diversi-Tech 2" locking ball mount with your 2-1/2" trailer hitch receiver. Heavy-duty steel is durable and corrosion resistant.


size of product is not standard. it fit my boat hitch, but not my bicycle rack hitch.


The thing is a piece of junk. The holes do not line up as they were drilled too close together.

According to Fastway, this adapter is only compatible with their DTLBM and DTALBM series ball mounts. If youre using a different ball mount, the adapter wornt work for you.
-- Etrailer Expert Mike L - 07/25/2019


The stainless steel adaptor sleeve was exactly what I expected. A nice piece of square tubing cut to exact length with properly located pin hole and all corners and edges deburred. Perfect fit.

by: 04/08/2022

I like it


Holes didn't line up where I wanted them but it worked regardless.


Product was shipped out quickly and it was exactly what I needed.


Perfect fit, works as designed!



works great and wonderful service.



Great product





See what our Experts say about this Fastway Hitch Adapters

  • What Type of Steel is Used on the Adapter Sleeve for Fastway and Diversi-Tech Ball Mounts
    The Adapter Sleeve for Fastway and Diversi-Tech 2" Locking Ball Mounts part # DTADP25-SS is not made from stainless steel. The adapter is made of a regular steel that is coated in black paint. The "SS" at the end of the part number does not refer to this product being stainless steel. Unfortunately, we do not have a stainless steel adapter for you at this time therefore this is your only option. I have attached a review video of the adapter for you as well.
    view full answer...
  • Can 2-1/2 inch Hitch to 2 inch Hitch Adapter be Used in Towing Applications
    Yes, the Adapter Sleeve for Fastway and Diversi-Tech 2" Locking Ball Mounts # DTADP25-SS is designed for use in towing applications with the adjustable ball mounts so it will work when towing. If you do not have a Diversitech or Fastway ball mount you instead would need the # 58102.
    view full answer...
  • Adapter for Fastway Self-Locking Aluminum Ball Mount to Fit 2-1/2 Inch Hitch Receivers
    It sounds like you have a Fastway Self-Locking, Adjustable, Aluminum Ball Mount, such as # DTALBM6600, or the discontinued Fastway Locking, Aluminum Ball Mount, such as # DTLBM8600. In order to fit a 2 inch receiver Fastway ball mount into a 2-1/2 inch hitch receiver, you will want to use the Fastway Stainless Steel Adapter Sleeve with Hitch Lock # DTADP35. The adapter sleeve is also available without a lock as # DTADP25-SS.
    view full answer...
  • Recommended Adapter Sleeve For Fastway Self-Locking, Adjustable, Aluminum Ball Mount DTALBM7000
    We have just what you are looking for. I recommend the Adapter Sleeve w Hitch Lock for Fastway Locking Ball Mounts, part # DTADP35. This adapter slips over the shank of your Fastway ball mount and then can be used in your 2-1/2 inch receiver on your 2017 Ram. The locking hitch pin included with this is designed for a 2-1/2 inch receiver. If you want the adapter sleeve without the locking hitch pin I recommend part # DTADP25-SS. Either one of these adaptersd will work great with your...
    view full answer...
  • Will Adapter Sleeve for Fastway and Diversi-Tech Ball Mounts DTADP25-SS Work with Other Brands
    It is possible that adapter sleeve # DTADP25-SS will work with other brands. But it was designed with 2 sets of pin holes so the locking tabs from the compatible ball mounts fit in one set and a regular hitch pin will fit in the other set. For a more universal item we have reducer sleeve # C45405.
    view full answer...
  • Reducer Sleeve Compatible with 2-1/2 Inch Hitch and Bike Rack
    You will instead want to use the Brophy Hitch Reducer and Extender - 2-1/2" to 2" Trailer Hitch - 7" Long # HR26. The Adapter Sleeve for Fastway and Diversi-Tech 2" Locking Ball Mounts to 2-1/2" Receivers # DTADP25-SS will not be ideal for your bike rack fit. It will not allow that 2nd pin hole location to be compatible with your bike rack.
    view full answer...
  • Reducer Sleeve and Hitch Pin for a GMC Sierra Denali 2500HD with 2-1/2 Inch Factory Trailer Hitch
    You are correct. Some OEM 2-1/2 inch hitches from different vehicle manufacturers are too wide for the standard size pin due to extra material on the outside of the hitches. You can get a reducer sleeve by itself. You can use reducer sleeve # DTADP25-SS. Our customers have found that it fits the GM trucks with 2-1/2 inch receivers but not Ford OEM 2-1/2 inch receivers due to a slight design difference. Since you have a GM reducer # DTADP25-SS will work. For a locking pin that will fit...
    view full answer...
  • Can Fastway Adjustable 2-Ball Mount DTALBM7025 Be Used in 2-Inch Hitch By Removing Sleeve
    My contact at Fastway said the sleeve on the shank of the Fastway Self-Locking Adjustable 2-Ball Mount # DTALBM7025 is part of the lock assembly and is more than a spacer. It is not designed to be removed to enable using this 2-1/2-inch ball mount in a 2-inch hitch. However, Fastway does offer sleeve # DTADP25-SS that let's you use one of their DTLBM and DTALBM series 2-inch ball mounts like # DTALBM6600 in the larger 2-1/2-inch hitch size.
    view full answer...
  • Will Fastway Locking Ball Mount Work With 2018 Chevy Silverado?
    The Flash Self-Locking Ball Mount # DTLBM9400 is going to work with Adapter Sleeve # DTADP25-SS on your 2018 Chevy Silverado 2500, but the locks on the ball mount will not function the same as they do on a 2" hitch because they will be inside the receiver, as you mentioned. Essentially the ball mount will be locked into the adapter, which is going to be why you would need hitch lock # e98881.
    view full answer...
  • Recommended 2 Inch Adjustable Aluminum Ball Mount And Adapter For 2-1/2 Inch Hitch Receiver
    The sleeve that is mounted to the Solid-Tow Adjustable, Aluminum Ball Mount, part # DTSTBM6825 is not removable to allow it to work with a 2 inch receiver opening, but we do have an option for you. I recommend part # DTALBM6800. This adjustable ball mount has the versatility that allows you to be able to go from an 8 inch drop to a 9 inch rise in 1 inch increments. It also includes 2 chrome-plates hitch balls, a 2 inch and a 2-5/16 inch. This ball mount has the same towing weight capacity...
    view full answer...
  • Reducer Sleeve Compatible with 2-1/2 Inch Hitch Receiver and Fastway Self-Locking Ball Mount
    The Fastway Self-Locking, Adjustable 2-Ball Mount w Stainless Balls - 2" Hitch - 6" Drop, 7" Rise # DTALBM6600-2S can be used with certain adapters and not others. The single hole sleeve reducers like # 58102 or # 325-GH-007 will not work because the ball mount won't have the pins long enough to secure to the receiver itself after connecting to the sleeve reducer. You will want the Adapter Sleeve for Fastway and Diversi-Tech 2" Locking Ball Mounts to 2-1/2" Receivers # DTADP25-SS to...
    view full answer...
  • Hitch Sleeve Extension and Reduction Adapter For Ford F350
    If your 2019 Ford F350 has a 3” receiver and you need to have a 2” adapter with it's own pin hole then the Buyers Products # 337RTA302 adapter will work for you. If you need an additional 5/8” hitch pin I would recommend the Buyers Products # 337HP6256WC hitch pin with clip . If you prefer a locking hitch pin then the Master Lock # ML1465DAT will work well. If your F350 has a 2-1/2” receiver then the Fastway # DTADP25-SS sleeve would work for your purpose. If you want a locking hitch...
    view full answer...

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Info for this part was:

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