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 - Primed - 2-5/16" Ball - 21K

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

Item # DM15791-97
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Our Price: $93.98
Adjustable Trailer Coupler
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DM15791-97 - 21000 lbs GTW Demco Coupler Only
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Cast ball coupler is made of sturdy steel and has a durable primed finish. Metal eZ-Latch ensures fast, easy, secure hookup and disconnect. Adjustable channel bracket and mounting hardware sold separately. Call 800-298-8924 to order Demco adjustable trailer coupler part number DM15791-97 or order online at etrailer.com. Free expert support on all Demco products. Guaranteed Lowest Price and Fastest Shipping for Demco Trailer Coupler - Cast - Adjustable Channel - eZ-Latch - Primed - 2-5/16" Ball - 21K. Adjustable Trailer Coupler reviews from real customers.
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  • Reviews (165)
  • Q & A (4)
  • Videos (1)
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Demco Adjustable Trailer Coupler - DM15791-97

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

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


Features:

  • 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
  • Adjustable channel mount lets you change coupler's height depending on application
    • Channel bracket and mounting hardware sold separately
  • Sturdy steel construction
  • Red powder coat primed paint finish offers excellent corrosion resistance
    • 500-Hour salt spray rating - great for marine applications
  • SAE J684 certified
  • Made in the USA


Specs:

  • 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 through body: 3"
    • Minimum span needed for pin lock through latch: 1-1/8"
  • 1-Year warranty


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


eZ-Latch Coupler

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

Unlike most couplers, which only have a pin hole on the handle latch, the eZ-Latch coupler features a hole on the latch and 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 red powder coat primed paint finish that is designed to limit rust and corrosion. This finish has a 500-hour salt spray rating, making the coupler perfect for marine use.



15791-97 Demco Trailer Coupler with Easy Latch for Adjustable Channel Bracket - Red - 2-5/16" Ball - 21,000 lbs




California residents: click here


Video of Demco Trailer Coupler - Cast - Adjustable Channel - eZ-Latch - Primed - 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 Demco Adjustable Trailer Coupler - Coupler Only - DM15791-97 Review

Today we're going to be taking a look at the Demco trailer coupler. This is a cast ball coupler that let's you hook up your trailer to your tow vehicle. It's going to provide a connection point for a 2 5/16" hitch ball. One of the neat advantages, or benefits, of this type of couple, or specifically the Demco trailer coupler, is this is going to feature what's called an easy latch mechanism. That's going to ensure simple, secure, hook up and disconnect. What that does is, it lets you hook up to your hitch ball when the latch is in a closed position.

All you have to do is drop your coupler over the hitch ball, and the latch will snap into place automatically, and engage the hitch ball. If you want to do it the traditional way with latch up, you can do that as well. Again, the neat thing is the easy latch mechanism lets you connect to your hitch ball with the latch in the closed position, engages automatically. When it comes to mounting, it's going to use an adjustable channel mount design. That's going to let you change the coupler's height depending on your application. Channel bracket and mounting hardware's going to be sold separately.

We recommend using hardware kit, or part number, DM6166. It's available and sold separately, here, at etrailer.com. The unit itself is made from a sturdy steel construction. It's going to feature a red powder coated, primed paint, finish. That way you can paint it however you want to, to match your trailer. This is going to offer excellent rust and corrosion resistance.

It actually has a 500-hour salt spray rating that's going to be great for marine applications. It's SAE JC684 certified. Again, it is designed for a 3" wide channel bracket. The overall width, here, at the back is going to be about 2 7/8, so it'll fit perfectly inside that bracket. Again, your hitch ball size is 2 5/16". The coupler's going to feature a weight capacity of 21,000 lbs.

Taking a look at the overall length of the unit, that's going to give us measurement of right around 8 1/8". These holes right here are going to be separated on center by 2". It's going to have two lock pinhole locations. You're going to have one, right here, on the latch, and then you're going to have one, right here, for the actual wedge mechanism, which is that piece right there. If you want to use this one, you will need a coupler pin and clip, or coupler pin and lock, with a usable pin length, or span, or at least 1 1/8". If you want to use this one, right here, you're going to need to get a coupler pin and clip, or pin and lock, with a usable pin length, or span, of 3". Those are sold separately and they can be found, right here, at etrailer.com. That's going to do it for today's look at the Demco trailer coupler for a 2 5/16" hitch ball.


Customer Reviews

Demco Trailer Coupler - Cast - Adjustable Channel - eZ-Latch - Primed - 2-5/16" Ball - 21K - DM15791-97

Average Customer Rating:  4.9 out of 5 stars   (165 Customer Reviews)

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

- DM6125-81
by:

Review from a similar eZ Latch in Adjustable Trailer Coupler


Easy to assemble, fast shipping , great price 488153



- DM14793-81
by:

Review from a similar eZ Latch in Adjustable Trailer Coupler


I just received the coupler yesterday and it is very heavy duty and has a great finish on it. Customer service was incredible. They even expedited shipping even though I didn't ask or pay for it. Thanks etrailer!! 436486


Comments
Fantastic. Good solid hitch. Great company to deal with. They care about their customers.
Lou Z - 09/26/2018

44013

- DM07678-95
by:

Review from a similar eZ Latch in Adjustable Trailer Coupler


Product its exactly as described. I order it online because i could not find it locally. Get things shipped to my address its hard but etrailer shipped it no problem. Go it fast, looking foward to do more business with etrailer. 596059



- DM14793-52
by:

Review from a similar eZ Latch in Adjustable Trailer Coupler


excellent service extremely helpful staff and great quality product 379036


Comments
great
GREGORY G - 05/29/2018

39010

- DM14793-81
by:

Review from a similar eZ Latch in Adjustable Trailer Coupler


This item is better quality than I was expecting! 664578



- DM12688-95
by:

Review from a similar eZ Latch in Adjustable Trailer Coupler


Purchased item matched what was advertised. Good quality. Received on time too. Great customer service too, thanks George! 552325


Comments
Works great! No rust. Complete confidence hauling my towable air compressor. Much nicer than the pintle hitch once connected.
John - 08/10/2019

58877

- DM15791-81
by:

Review from a similar eZ Latch in Adjustable Trailer Coupler


The coupler would come loose unless it was pinned before I loaded my tractor on the trailer. This coupler stays open when hooking up and closed when in use. 452345



- DM14793-81
by:

Review from a similar eZ Latch in Adjustable Trailer Coupler


Coupler mechanism is finicky, you have to shake the trailer tongue to get it to lock. The pin hole is too small in diameter to accept a lock so you have to use a ball lock to lock the trailer. Also it’s plastic so if it sticks you have to be careful tapping on it. I wouldn’t by again and if it breaks I’ll go back to normal coupler. 489782


Comments
The coupler mechanism is adjustable. Use the adjustment bolt on the underside of the latching mechanism to adjust until the coupler will self-latch when set atop the trailer ball.
-- Mike L - 03/28/2018

36561

- DM07678-95
by:

Review from a similar eZ Latch in Adjustable Trailer Coupler


The coupler is a fantastic, well built and easy to use unit. The installation was super simple. The coupler lock is a great piece as well, it fits great into the ball socket on the coupler and locks super tight. Great pieces of equipment. The coupler latch pin however did not fit the latch on the Demco coupler. Had to pick up a different one from Farm as Fleet, but we can use the other one on my other trailer. 126978



- DM6125-97
by:

Review from a similar eZ Latch in Adjustable Trailer Coupler


Product arrived on time and is an excellent product. Very satisfied. 652773


Comments
Excellent product, fit perfect. Very nice spring loaded ball latch, you do not have to lift up to place on ball. I highly recommend it.
Shirley R - 06/04/2020

78750

- DM14040-81
by:

Review from a similar eZ Latch in Adjustable Trailer Coupler


Excellent design, the only small issue is that the top of the coupler that fits over the ball is already rusting. 526058



- DM14040-81
by:

Review from a similar eZ Latch in Adjustable Trailer Coupler


Works well and is very heavy duty. 374734



- DM6125-81
by:

Review from a similar eZ Latch in Adjustable Trailer Coupler


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! 592298



- DM14793-81
by:

Review from a similar eZ Latch in Adjustable Trailer Coupler


Trailer coupling will not fit correctly on a 2" Ball...to tight and is always difficult to get on and off. 440928


Comments
We have contacted the manufacturer and they suggest pulling forward so that trailer is not pushing against the truck. If the ball is being pushed into the latch mechanism if will be hard to unlatch. Pull forward before unhooking it on a level surface.
-- Heather A - 10/13/2017

29243

- DM14793-81
by:

Review from a similar eZ Latch in Adjustable Trailer Coupler


My old coupler was pretty used up and rated at only 5000 lbs for a 10,000 lb trailer so it had to go. The new bolt-on 10,000 lb coupler is quality. I like the EZ latch because its smooth, self latching and easy. The job was about four hours including removing old coupler, welding some new channel in and drilling holes. New coupler looks good, works great, and trailer is safer. 703091



- DM07678-95
by:

Review from a similar eZ Latch in Adjustable Trailer Coupler


Products work great 250119



- DM14040-81
by:

Review from a similar eZ Latch in Adjustable Trailer Coupler


This is the best hitch on the market! I've changed over all 4 of my trailers to this hitch. Simple hook/unhook, releases off the ball smooth, no pins to mess with. The included steel bracket (product #DM6125-81) is super heavy duty & so is the hitch itself, plenty heavy for any 2 5/16" trailer. I hacked off my existing hitches w a cutoff saw, welded a plate then the bracket and did each of my trailers , w paint, in less than an hour. 463489



- DM14793-81
by:

Review from a similar eZ Latch in Adjustable Trailer Coupler


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. 666913



- DM14791-97
by:

Review from a similar eZ Latch in Adjustable Trailer Coupler


Looks good, quality controle could be a little better. Nothing that will effect the function. It looks like it was not cleaned after welding. There is a lot of weld splatter. I am painting it a different color anyway so I will clean it up. 527512



- DM14793-81
by:

Review from a similar eZ Latch in Adjustable Trailer Coupler


Excellent product, arrived 1 day early. 884116



- DM14793-52
by:

Review from a similar eZ Latch in Adjustable Trailer Coupler


As described perfect 876647



- DM14793-81
by:

Review from a similar eZ Latch in Adjustable Trailer Coupler


Perfect fit, exactly what I was looking for. Great and fast shipping. Keep up the excellent work strainer. 873649



- DM14040-81
by: 08/26/2020

Review from a similar eZ Latch in Adjustable Trailer Coupler


I own a Constuction business and this is the best coupler we have ever used! I will our these on all of our trailer. I wish my new trailers came with this from the factory’. 869127



- DM14040-81
by:

Review from a similar eZ Latch in Adjustable Trailer Coupler


Looks like a great product but it would be nice to have the appropriate bolts with it or the associated brake actuator that I also bought. 862556



- DM14040-52
by:

Review from a similar eZ Latch in Adjustable Trailer Coupler


I bought this coupler to replace my old rusty one. Coupler fit perfectly. Very happy with how this works! 854855


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Ask the Experts about this Demco Adjustable Trailer Coupler

  • What is the Mounting Hole Width on Demco 21K Trailer Coupler DM15791-97
    Demco coupler # DM15791-97 is designed to fit a 3 inch wide channel bracket such as # DM59602. On the coupler where it mounts to the channel the distance from the outside of one flange to the other is approximately 2-7/8 inches. I have included a picture illustrating these dimensions for you. The holes on both are space 2 inches apart on center (vertically) and are 5/8 inches in diameter.
    view full answer...
  • Does the Demco Trailer Coupler # DM15791-97 Have to be Painted
    The coupler part # DM15791-97 that you referenced comes primed for paint, but if you didn't want to paint it you could leave it as-is. A better option would be the galvanized version of this # DM07678-95.
    view full answer...
  • A-Frame Surge Brake Coupler Recommendation to Replace HydroAct Actuator
    From a previous question we know that the actuator you have is a HydroAct brand and based on that we know the master cylinder you mentioned won't fit it. For a similar A-frame style coupler that will work great as a replacement we have the A-Frame Brake Actuator # DM8205222 which would be a great choice as a replacement. For a coupler then you'd want the # DM15791-97.
    view full answer...
  • Best A-Frame Disc Brake Trailer Coupler Actuator
    I do have an option for you but there is not a version of the Titan Zinc-Plated A-Frame Brake Actuator part # T2492800 that is rated for use on trailers with disc brakes. The only a-frame trailer coupler we do offer for use with disc brakes is the Demco Hydraulic Brake Actuator w/ Lockout part # DM8105422 therefore this is what I recommend you use. In order to use this coupler with a 2-5/16" hitch ball you will also need the Demco Trailer Coupler part # DM15791-97. The Demco coupler...
    view full answer...

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Info for this part was:

Edited by:
Lindsey S
Installed by:
Cole B
Updated by:
Sarah W
Written by:
Amanda M

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