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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 - 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: $102.98
Adjustable Trailer Coupler
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Shipping Weight: 9 lbs
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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. 1-800-940-8924 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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Demco Adjustable Trailer Coupler - DM15791-97

  • 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 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:  4.8 out of 5 stars   (281 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.

by:

NIce part, fair price, American made.



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.


Comments
It continues to perform like it was new. I will never have a trailer without one!
JOE E - 01/24/2022

by:

Review from a similar eZ Latch Coupler in Adjustable Trailer Coupler


I don’t really want to write a review, hope someone will really read this.the main reason I ordered a bolt on coupling is so I would not have to weld, but I’m gonna have to even add 2in.to my trailer to make all the holes match. I would have returned it but your return policy says I would have to pay shipping ugg!!. I’m already in for 140.00 bucks now I have to pay and end up with nothing but lost of money for nothing. I’m 74 years old and did not want to weld , that was my only reason for ordering your coupling .the thing had some scratches and marks on it like it had already been a return, don’t think it was done during shipping, although it was put in a fairly large box with flimsy paper packing, so I’m going to have to make it work,even have to weld and everything. Now I’m having to waste time writing all of this , and it’s not going to even make any difference anyway. I think y’all owe me some kind of discount for all my troubles I was trying to avoid anyway, but I’m sure that is not going to happen either. GOD BLESS THOMAS OLIVER


Comments
You mentioned that you needed to add 2 inches to your trailer to install the trailer and I wanted to see if you could explain in more detail what you mean. Would you be able to send pictures?
-- Etrailer Expert Jenny N - 04/05/2022

by:

Review from a similar eZ Latch Coupler in Adjustable Trailer Coupler


Very solid hitch. Fast shipping. Fits well except your trailer channels need to nearly come to a point for the first set of holes to have anything to bolt to. Mine did not, so I am having it welded on as well. No paperwork or hardware with this package, but the video will answer most all questions.


Comments
Excellent - it’s stronger than the trailer. Weak point is the plastic lever. If I’m unhitching on an incline it won’t release. I would break it.
Matt - 04/09/2022

by:

Review from a similar eZ Latch Coupler in Adjustable Trailer Coupler


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


Comments
Here is a link to our ion of coupler locks if you are still looking to purchase one.
-- Etrailer Expert Brooke M - 05/02/2022

by:

Review from a similar eZ Latch Coupler in Adjustable Trailer Coupler


I like the 4 bolt system rather than the 2 bolt system because it "mates" the two metal surfaces together better than 2 long bolt design. The way in which its tightened is better. Plus if you have 1 of 4 bolts break you can still safety tow it. If 1 of 2 bolts break you're flirting with disaster. 21k coupler on a 10k trailer. Heavier and better design than my original Made in China coupler.



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.



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!



by:

Review from a similar eZ Latch Coupler in Adjustable Trailer Coupler


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?



by:

Review from a similar eZ Latch Coupler in Adjustable Trailer Coupler


Trailer coupler was easy to install,
fits
over tow ball and locks with ease.
I’ve ordered other trailer parts from E Trailer and they always have shipped quickly and parts have always been what’s specified on their website.
And their videos are very helpful when ordering parts.
I highly recommend ordering parts from this company.



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!



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.



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.



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.



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



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.



by:

Review from a similar eZ Latch Coupler in Adjustable Trailer Coupler


This is a great coupler. The ease of use and security are unmatched.



by:

Review from a similar eZ Latch Coupler in Adjustable Trailer Coupler


Iv ordered many things from these guys, always quick, correct parts, and the quality I expect. Pretty simple install if you have the tools and knowledge. Thanks guys



by:

Review from a similar eZ Latch Coupler in Adjustable Trailer Coupler


We installed this unit on our trailer and have had no problems whatsoever. The holes have not elongated like other brands. The flip up tab is easier than a more traditional style, and while it is a plastic tab, it has been quite durable. Have had no freezing issues up here in northern Wisconsin. Very satisfied.



by:

Review from a similar eZ Latch Coupler in Adjustable Trailer Coupler


Just received the Trailer Coupler. Is very nice!! Heavy Duty! I placed it over the old coupler and it looks like it will work very well. I know what I'll be doing this weekend.


Comments
The trailer coupler has worked out perfectly. Handles everything that I haul.
Matthew D - 05/22/2021

by:

Review from a similar eZ Latch Coupler in Adjustable Trailer Coupler


Ordering process was easy and the videos regarding installation and operations were very useful!



by:

Review from a similar eZ Latch Coupler in Adjustable Trailer Coupler


Order shipped earlier than expected and arrived on time. Edith was extremely helpful and product is what I expected it to be. Would definitely order from etrailer again



by:

Review from a similar eZ Latch Coupler in Adjustable Trailer Coupler


Heavy duty adjustable weld on ball hitch , welds on easy with some prep , work.



by:

Review from a similar eZ Latch Coupler in Adjustable Trailer Coupler


excellent product. perfect fit. better quality than other hitches i found.



by:

Review from a similar eZ Latch Coupler in Adjustable Trailer Coupler


Worked great . Easy install . Saved the trailer


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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...
    Image 1 for
  • 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...
  • Is Demco Hydraulic Brake Actuator DM8759432 Bolt-On or Weld-On
    While we do have a bolt-on option, the Demco Hydraulic Brake Actuator - Drum - Primed - 12" Adjustable Channel Down - 8,000 lbs # DM8759432 is actually a weld-on actuator. If you are looking for a bolt-on option, there are a couple similar options: - Demco Hydraulic Brake Actuator - Drum - Zinc - 12" Adjustable Channel Center - 8,000 lbs # DM8758521 - Demco Hydraulic Brake Actuator - Drum - Zinc - 8" Adjustable Channel Down - 8,000 lbs # DM8759231 Your 11 inch channel is more than long...
    view full answer...
    Image 1 for
  • 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 will...
    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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