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  1. Adjustable Trailer Coupler
  2. Demco
  3. 2-5/16 Inch Ball Coupler
  4. Coupler Only
  5. 21000 lbs GTW
  6. Auto Latch
Demco Trailer Coupler - Cast - Adjustable Channel - eZ-Latch - Zinc - 2-5/16" Ball - 21K

Demco Trailer Coupler - Cast - Adjustable Channel - eZ-Latch - Zinc - 2-5/16" Ball - 21K

Item # DM14040-95
Our Price: $106.25
You Save: $6.06
Adjustable Trailer Coupler
Shipping Weight: 9 lbs
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Cast ball coupler is made of sturdy steel and has a durable zinc finish. Composite eZ-Latch ensures fast, easy, secure hookup and disconnect. Adjustable channel bracket and mounting hardware sold separately. 1-800-940-8924 to order Demco adjustable trailer coupler part number DM14040-95 or order online at Free expert support on all Demco products. Great prices and Fastest Shipping for Demco Trailer Coupler - Cast - Adjustable Channel - eZ-Latch - Zinc - 2-5/16" Ball - 21K. Adjustable Trailer Coupler reviews from real customers.
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  • Reviews (476)
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Demco Adjustable Trailer Coupler - DM14040-95

  • 2-5/16 Inch Ball Coupler
  • Coupler Only
  • 21000 lbs GTW
  • Auto Latch
  • Demco

Cast ball coupler is made of sturdy steel and has a durable zinc finish. Composite eZ-Latch ensures fast, easy, secure hookup and disconnect. Adjustable channel bracket and mounting hardware sold separately.


  • Cast ball coupler lets you hook up your trailer to your tow vehicle
    • Provides connection point for hitch ball
  • eZ-Latch mechanism ensures simple, secure hookup and disconnect
    • Lets you hook up when latch is in closed position - just drop coupler over hitch ball and latch will snap into place
  • Corrosion-proof polymer-nylon-resin composite latch handle is durable and impact resistant
    • Sleek low-profile design allows hazards to simply slip over the top of the coupler, preventing damage to latch components
  • Adjustable channel mount lets you change coupler's height depending on application
    • Channel bracket and mounting hardware sold separately
  • Sturdy steel construction
  • Zinc finish offers corrosion resistance
    • 300-Hour salt spray rating
  • SAE J684 certified
  • Made in the USA


  • Application: 3" wide channel bracket
  • Ball size: 2-5/16"
  • Weight capacity: 21,000 lbs
  • Coupler dimensions: 8-1/8" long x 2-7/8" wide
  • Diameter of lock pin hole: 5/16"
    • Minimum span needed for pin lock: 3"
  • 1-Year warranty

Coupler Dims

Note: (4) 5/8" Grade 5 mounting bolts must be used to achieve the 21,000-lb weight capacity

eZ-Latch Coupler

Cast Coupler Cutaway

This coupler features a simple-to-use latching mechanism known as the eZ-Latch. With this mechanism, hooking up is as easy as dropping the coupler over your trailer hitch ball. The latch does not need to be tugged or manually activated to allow the ball into the coupler socket, nor does it have to be secured in place. Just make sure that the coupler is properly lined up with the ball when you lower it, and the rest is automatic. Disengaging the coupler is just as effortless. Simply lift up the handle and the coupler socket will automatically release its grip on the ball.

Demco eZ-Latch in Use

The contoured, low-profile design of the latch handle helps protect the coupler from damage by allowing any potential hazards - from debris on the road to your ball mount backing into the coupler - to simply slide over the top. This helps prevent anything from getting under the latch handle and releasing the ball, and it can also limit any damage to the coupler should an impact occur

Unlike most couplers, which have a pin hole on the handle latch, the eZ-Latch coupler features a hole on the side of the coupler itself. Inserting a coupler lock through this hole will keep the latch from lifting, preventing disconnect and theft.

Sturdy, Corrosion-Resistant Construction

Made of sturdy steel, this coupler features a durable zinc coating that is designed to limit rust and corrosion. This finish has a 300-hour salt spray rating, allowing it to stand up to the elements.

The eZ-Latch's sleek, ergonomically designed handle is constructed of an impact-resistant polymer-nylon-resin compound that provides the flexibility and strength needed to bounce back from a collision. The handle is corrosion-proof, allowing it to withstand whatever the road and the elements dish out.

14040-95 Demco Trailer Coupler with Easy Latch for Adjustable Channel Bracket - Zinc Plated - 2-5/16" Ball - 21,000 lbs

California residents: click here

Video of Demco Trailer Coupler - Cast - Adjustable Channel - eZ-Latch - Zinc - 2-5/16" Ball - 21K

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

Video Transcript for Review of Demco Adjustable Trailer Coupler - Trailer Coupler 2-5/16 Inch Hitch Ball - DM14040-95

Hi, everybody. Andy here with, and today we're gonna take a look at this Demco Trailer Coupler. This cast ball coupler is gonna let you hook up your trailer to your tow vehicle, giving you a connection point for your 2 5/16 inch hitch ball. The easy latch mechanism is going to ensure simple, secure hookups and disconnect, letting you hook up when the latch is in closed position and you're just going to drop the coupler over the hitch ball and the latch will snap into play. So I have a 2 5/16 inch hitch ball here. I just want to give you an example of that.

Obviously, this is going to work a little bit easier and a little bit smoother when you have this installed, but I'm just gonna show you how this can connect with the latch down. (metal thudding) So as you can see you, you're not gonna have to have that latch up and it's going to provide that secure connection for you. And then just lift this up for an easy release, and it's gonna be just as simple as that. The corrosion-proof polymer nylon resin composite latch handle is durable and impact-resistant, and the sleek low profile design is going to allow hazards to simply slip over the top of the coupler, preventing damage to latch components. Now the adjustable channel mount is going to let you change the coupler's height depending on your application.

And the channel bracket and mounting hardware are sold separately, but you can find it here at And this is going to mount into a three inch wide channel bracket. And the holes, the mounting holes are 5/8 of an inch in diameter. And let me see if I can line my ruler up here to give you the measurements of those mounting holes on center. So as you can see, center to center, they're sitting right at two inches.

Now this coupler is made here in the U.S.A. of a sturdy steel construction that offers a weight capacity of 21,000 pounds. I do wanna make an important note that four 5/8 of an inch grade 5 mounting bolts must be used to achieve that 21,000 pound weight capacity. The zinc finish is going to give you great corrosion resistance, giving you a 300-hour salt spray rating. This is SAE J684 certified.

And let me get my ruler again and give you some overall measurements here of this coupler, just so you can be aware of the size. So lining this up as best as I can. The overall length, we're sitting a little over eight inches, it looks like, probably about 8 1/8 inches long. And then looking at the width, again, this is gonna fit in your three inch channel. So as you can see, this is about 2 7/8 inches wide. And you can run a lock through here. And that lock pin hole is 5/16 of an inch. And you'll need to make sure that if you do pick up a pin lock, it has a minimum span of three inches. Well, that's gonna conclude our brief look today. I do hope that it was helpful for you. Again, my name is Andy. Thank you for joining me.

Customer Reviews

Demco Trailer Coupler - Cast - Adjustable Channel - eZ-Latch - Zinc - 2-5/16" Ball - 21K - DM14040-95

Average Customer Rating:  4.8 out of 5 stars   (476 Customer Reviews)

Cast ball coupler is made of sturdy steel and has a durable zinc finish. Composite eZ-Latch ensures fast, easy, secure hookup and disconnect. Adjustable channel bracket and mounting hardware sold separately.


Fast service and delivery.


This is heavy duty if you're looking for a great reliable coupler. Replaced on a trailer I use to haul my D2 Catepillar. The coupler has performed above and beyond, over rough terrain and long hauls. No signs of wear and absolutely no metal failure or stress fractures like previous couplers from other suppliers.




great product, great service, cheap shipping and fast!



Great service





Very good quality, construction, and finish. This was used to replace a 5000# rated coupler on my RV trailer that was just not strong enough. It has an extra 2-3" of length than the old coupler so make sure your safety chains have enough length to accommodate the extra length. One bonus for me was that the extra length was just enough to allow me to open the back door of my SUV with the trailer hitched (which I couldn't do before). The DEMCO coupler does take a 2 1/2" wide hitch pin /lock which is different than most couplers.


Heavy duty for sure. Drilling 1/2” holes in 1/4” thick angle iron on the trailer required more than a hand drill, but other than that installation was simple. Removing the original coupler was a chore because it was welded on both top and bottom. I had to use a hacksaw (3 blades), 2 lb mallet, large crowbar, steel chisel, grinder. Fortunately I had all that, and I’m very pleased with the result.


Great product! This thing's built like a tank. We're always pulling the heaviest things possible with our trailers and this stands up to the job.


Exactly what I needed to replace the sloppy pintle hitch on my trailer I’m rebuilding.


We're switching all of our couplers to the Demco eZ-latch. They've been very reliable and easy to use.


Installed this AWESOME hitch on my 20 ft equipment trailer after I upgraded to 8k axles. This hitch is a beast. I love the no touch when hooking up. Just lower the trailer down and it makes a positive lock sound. I welded the hitch to a 1/2 inch thick plate. Welded the plate onto the trailer and used my own gussets instead of the supplied ones. You won’t go wrong with this hitch!


Was very easy to install. I did have to grind a bit off the back so I could get clearance for the bolt holes to line up. Only took about 30 min to install.


I decided I wanted to renew my Dad's old trailer. Starting with a trailer coupler upgrade to the adjustable "eZ-Latch". Thanks to etrailer it was an easy, convenient one stop shop and I couldn't be more pleased with the products and service. When it comes time to do the running gear and tires, etrailer will be my source.

Thank you!


love these couplers ! they are the best and are easy to open up and when they are pulled up you know it is disconnected !! the best !

I was a little disappointed when I opened the box yesterday and found that there was no keeper pin with the couplers now I have to go to town and find the right size ! I was thinking it would come with one ! should have a option to buy the correct one or just send one with !! thanks


Great fit. Easy fix. Replaced my worn thin ball hitch. Grade 5 1/2" bolts with lockwashers.


Easiest coupler I have ever used. A must if you are constantly switching trailers, or hooking up.


When my old coupler failed I was very happy to find a bolt on coupler this heavy as most are weld on for a trailer this heavy. I wish I would have changed the coupler years ago. I always had trouble with the old one. This one is so easy to latch and unlatch from my truck. It is great quality.


I love Demco Couplers, they are so easy to use and so well constructed.
I have been changing the couplers on all of my equipment to Demco.
etrailer is the is by far the best place to get them, along with numerous other items like trailer jacks, lights, hitches, etc.
Great customer service, fast shipping, great prices, what more could you ask?


Exactly what was advertised.


For someone who kept forgetting to engage the lock this item has been the best investment on my trailer. (Funny thing is once I put this guy on there I don't forget to check that it is engaged.) In the event I forget I know the coupler will be engaged and safe. As far as weight rating I have pushed this guy to almost 18k and seen no stress or issues with it. The components are holding up great after a year.


Best trailer hitch for the price, Very solid and easy to use and makes hook up a breeze. Highly recommended

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See what our Experts say about this Demco Adjustable Trailer Coupler

Info for this part was:

Employee Lindsey S
Written by:
Lindsey S
Employee Laura H
Updated by:
Laura H
Employee Wilson B
Updated by:
Wilson B
Employee Amanda M
Updated by:
Amanda M
Employee Cole B
Installed by:
Cole B
Employee Andy C
Installed by:
Andy C

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