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

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

Item # DM15791-81
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Our Price: $124.58
Adjustable Trailer Coupler
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Shipping Weight: 9 lbs
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DM15791-81 - Auto Latch Demco Coupler Only
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Cast ball coupler is made of sturdy steel and has a durable black powder coat finish. Metal eZ-Latch ensures fast, easy, secure hookup and disconnect. Adjustable channel bracket and mounting hardware sold separately. Call 800-298-1624 to order Demco adjustable trailer coupler part number DM15791-81 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 - Black - 2-5/16" Ball - 21K. Adjustable Trailer Coupler reviews from real customers.
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  • Reviews (240)
  • Q & A (2)
  • Videos (1)
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  • Why etrailer?

Demco Adjustable Trailer Coupler - DM15791-81

  • 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 black powder coat 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
  • Black powder coat 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 black powder coat 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.



15791-81 Demco Trailer Coupler with Easy Latch for Adjustable Channel Bracket - Black - 2-5/16" Ball - 21,000 lbs




California residents: click here


Video of Demco Trailer Coupler - Cast - Adjustable Channel - eZ-Latch - Black - 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 - DM15791-81 Review

Today we're going to be taking a look at a Demco trailer coupler. This is a cast-ball coupler that lets you hook up your trailer to your tow vehicle. It's going to provide a connection point for a hitch ball. This one's designed for a two and five sixteenths in ch ball. This unit's going to feature the easy latch mechanism. It's going to ensure simple, secure hook-up and disconnect. What that means is, all you have to do is simply drop the coupler over the ball, even with the latch in the closed position.

Everything's going to engage automatically. The latch is going to snap into place, it's going to engage around the hitch ball. That way why don't have to have it open. You can if you want to, that's totally your preference. The neat thing about this one, one of the main benefits, is with the latch in the closed position, you can drop it over the hitch ball and it engages automatically. When it comes to mounting, it's going to use an adjustable channel mount design.

That's going to allow you to change the coupler's height depending on the application. Channel bracket mounting hardware is sold separately. We want to recommend using hardware kit, part number DM6166. That'll give you everything that you need to get this installed onto an adjustable bracket or a channel mount bracket. That is sold separately and can be found here at e-trailer.com The unit's made from a sturdy steel construction.

It's going to feature a black powdered coated finish. It's going to do a great job at resisting rusting, corrosion and lasting a long time. It actually features a 500 hour salt spray rating, which is going to make it great for marine applications. It is SAEJ684 certified. This is designed for a three inch wide channel bracket. It's going to accept a two and five sixteenth hitch ball.

The weight capacity for this unit is 21 000 pounds. now, taking a look at a few dimensions real quick. Starting with the overall length, that's going to give us a measurement of eight and one eighth of an inch long. Again, designed for a three inch wide channel bracket, so the width back here is just under three inches, it's about two and seven eighths. That way it fits perfectly inside that bracket. You'll notice that on the unit, it's going to feature two lock-pin holes. That way you can use a coupler lock or a coupler pin and lock. Or a pin and clip. Your going to have a coupler area right here for a pin. The diameter of the lock-pin holes on the unit are going to measure five sixteenths of an inch. If you're going to use this one right here, which would just lock the latch, that's going to need a usable pin length, or a span of one and one eighth of an inch. There's also one down here, which would keep the wedge from actually operating. Which is going to be great for you're unattended trailer, making sure nobody runs off with your trailer. The usable pin length, or span needed for using this location would be three inches. Coupler pins and clips and pins and locks are sold separately. You can find everything that you need, right here at etrailer.com That's going to do it for today's look at the demco trailer coupler.


Customer Reviews

Demco Trailer Coupler - Cast - Adjustable Channel - eZ-Latch - Black - 2-5/16" Ball - 21K - DM15791-81

Average Customer Rating:  4.8 out of 5 stars   (240 Customer Reviews)

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

- DM15791-81
by:

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.



- DM15791-81
by:

I ordered an easy latch trailer coupler in silver, about two days later I got a call and was told that silver was out of stock, but I could get sent black. I agreeed to black instead of silver. However when I received my trailer coupler it was a whole different model. I did not have time to send it back, however not the greatest to receive something different than what I ordered.



- DM15791-81
by:

Thanks for the quick response helping me out.



- DM15791-81
by:

All items on the order were correct and delivered as stated by the company. We would highly recommend etrailer and plan on ordering from them in the future



- DM15791-81
by:

Quick shipping, good communication, Quality products, The only place for Trailer Parts.



- DM15791-81
by:

Delivery was very quick & the item fit perfectly. Thank you etrailer.



- DM15791-81
by:

Quality part for the money.Fast delivery



- DM15791-81
by:

Exactly what I needed to get my heavy trailer back in shape!



- DM15791-81
by:

Very good product - works well for our application



- DM15791-81
by:

Great product, beautiful finish and paint, fast shipment. Well pleased



- DM15791-81
by:



- DM14040-81
by:

Review from a similar eZ Latch Coupler in Adjustable Trailer Coupler


Awesome coupler. You cannot forget to lick in your hitch ball with this. It automatically locks in place when you drop it on the ball and the flip latch is easy to release the ball when unhooking. There is a reason Airstream has this on all their new travel trailers



- DM14793-81
by:

Review from a similar eZ Latch Coupler in Adjustable Trailer Coupler


this was an effective solution to a bent trailer coupler and twisted frame. i did add welds and a piece of channel to the frame before i bolted it down. 4 stars because i had to hunt around for a lock long enough to go thru the hole in the front. definitely recommend if you have a difficult repair on a trailer coupler.



- DM14793-52
by:

Review from a similar eZ Latch Coupler in Adjustable Trailer Coupler


Better made than the original load rite piece. Much better hitch mechanism. Very pleased with it. Purchased for a 2year old single axel Load Rite UT-510. Load Rite confirmed this is the correct replacement piece. It is not. Bolt holes did not match up.. Had to drill new ones into the frame. Very pleased w Demco. Load Rite? Not so much love going there.


Comments
I am not sure about this being a direct replacement for anything but we do have the specs listed in the description for people making a switch in brands.
-- Etrailer Expert Sierra K - 08/26/2021


- DM14040-81
by:

Review from a similar eZ Latch Coupler 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.



- DM14791-97
by:

Review from a similar eZ Latch Coupler in Adjustable Trailer Coupler


Excellent product and was exactly as described. I love the Demco EZ latch. Shipping was super quick! Will do business with etrailer.com again.



- DM6125-81
by:

Review from a similar eZ Latch Coupler 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!



- DM14040-97
by:

Review from a similar eZ Latch Coupler in Adjustable Trailer Coupler


Absolutely Great coupler! I have 3 trailer's with 3 different hitches. These Demco unit's are so simple and so easy to operate. I just bought a new equipment trailer last week and I struggled to get that coupler on (so did the dealer) so I ordered 2 of these to make my life easy. I now have 1 for a spare or parts if needed. Highly recommend one if you have any issue's with your current coupler. YES, they are worth it..... I'd give these more than 5 stars if I could.



- DM12688-95
by:

Review from a similar eZ Latch Coupler in Adjustable Trailer Coupler


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!



- DM14793-81
by:

Review from a similar eZ Latch Coupler 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.



- DM14793-81
by:

Review from a similar eZ Latch Coupler 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.



- DM14791-97
by:

Review from a similar eZ Latch Coupler in Adjustable Trailer Coupler


Best coupler I have ever had on a trailer. Wish I would have had sooner in my live of trailering. Makes connecting and disconnecting a one step breeze. I will get this on all trailers from now on!



- DM14040-52
by:

Review from a similar eZ Latch Coupler in Adjustable Trailer Coupler


The coupler came quickly and fit perfectly. So much better than the original. I will make sure all my trailer business will go to etrailer.



- DM14040-81
by:

Review from a similar eZ Latch Coupler 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.


Comments
It has been great. No issues. I am very happy
Rcmedic - 08/16/2021


- DM14793-52
by:

Review from a similar eZ Latch Coupler in Adjustable Trailer Coupler


I purchased the premium version of this bolt on coupler. I replaced a cracked welded original, and likes the bolt on feature. Used grade 8 bolts, its not going anywhere. It is extremely beefy, thick and heavy steel. The finish is excellent. It has a 500 hr salt rating. I clamped it into place with C clamps and used the holes in the coupler as templates to drill into the channel steel on the trailer. As a result, a perfect fit. It fits the 50 degree angle of the trailer channels like a glove. The fastening mechanism works very nicely. Unlike other fastener systems, it simply engages or disengages a spring that sets the locking mechanism. It requires that you pull the trailer forward under tension slightly to lock it in place. It has a beefed 5/16” locking pin hole. I purchased my locking pin locally as e-trailer has a 5/16 pin but it is not long enough as specified for this. A pin is not supplied, I don’t think this is normally supplied anyways.


Comments
Good, continues to work well. It requires placement against the ball or it does not close, typical of most hitches. It seems to snap right in place I like it. Worried the lever is made of plastic.
Richard - 07/14/2020

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Ask the Experts about this Demco Adjustable Trailer Coupler

  • Material of Latch Handle on Demco Trailer Coupler
    The review on the product page for the Demco Trailer Coupler # DM15791-81 is actually from a similar product and not the exact same coupler. I'm not sure the product the customer is referring to but the latch handle of # DM15791-81 is metal.
    view full answer...
  • How to Mount an Adjustable Trailer Coupler
    Adjustable trailer couplers are not going to mount to your truck; they will attach to the frame of your trailer. Some of the adjustable couplers, such as the Bulldog Cast Head # BDA2563C0317 come with the mounting hardware to weld onto the frame of your trailer. Others, such as the Demco # DM15791-81, come with the channel bracket # DM66134 and mounting hardware # DM6166 separately. I've added a link to our page with each of our 2-5/16" adjustable trailer couplers for you to take a look at.
    view full answer...

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Cole B
Installed by:
Cole B
Employee Wilson B
Updated by:
Wilson B
Employee Amanda M
Written by:
Amanda M

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