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  1. A-Frame Trailer Coupler
  2. etrailer
  3. 2-5/16 Inch Ball Coupler
  4. Weld-On
  5. 14000 lbs GTW
  6. Thumb Latch
A-Frame Trailer Coupler - Thumb Latch - Zinc - 2-5/16" Ball - Weld On - 14,000 lbs
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A-Frame Trailer Coupler - Thumb Latch - Zinc - 2-5/16" Ball - Weld On - 14,000 lbs

Part Number: CA-5400-Z
In Stock
$31.50
A-Frame Trailer Coupler
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A-frame coupler features a thumb latch for safe, easy hookup. Simply push latch down and slide forward or back to open or close ball socket. Durable, zinc finish offers superior corrosion resistance and is perfect for boat trailers. 1-800-940-8924 to order etrailer a-frame trailer coupler part number CA-5400-Z or order online at etrailer.com. Free expert support on all etrailer products. Great prices and Fastest Shipping for A-Frame Trailer Coupler - Thumb Latch - Zinc - 2-5/16" Ball - Weld On - 14,000 lbs. A-Frame Trailer Coupler reviews from real customers.
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  • Reviews (155)
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etrailer A-Frame Trailer Coupler - CA-5400-Z

  • 2-5/16 Inch Ball Coupler
  • Weld-On
  • 14000 lbs GTW
  • Thumb Latch
  • Standard Coupler
  • 50-Degree Frame
  • etrailer
  • Marine Grade
  • 2-1/4 Inch Hole

A-frame coupler features a thumb latch for safe, easy hookup. Simply push latch down and slide forward or back to open or close ball socket. Durable, zinc finish offers superior corrosion resistance and is perfect for boat trailers.


Features:

  • A-frame coupler lets you hook up your trailer to your tow vehicle
    • Provides connection point for hitch ball
  • Thumb latch makes it easy to clamp around ball
    • Push latch down and slide it back toward the trailer to open the ball socket
    • Push latch down and slide it forward to close
  • Sturdy steel construction
  • Clear zinc finish provides superior corrosion resistance
  • Built-in jack-attachment point allows for quick, easy mounting of round utility jack
  • SAE J684 certified
  • Weld-on installation


Specs:

  • Ball size: 2-5/16"
  • Jack hole diameter: 2-1/4"
  • Overall dimensions: 12-7/8" long x 10-7/8" wide
  • Pin hole diameter: 5/16"
    • Minimum span needed for pin or pin lock: 7/8"
  • Weight capacity: 14,000 lbs
  • 1-Year warranty


CA-5400-Z Ram A-Frame Trailer Coupler - Thumb Latch - 2-5/16" Ball - Zinc - 14,000 lbs





Video of A-Frame Trailer Coupler - Thumb Latch - Zinc - 2-5/16" Ball - Weld On - 14,000 lbs
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Hands-On with the A-Frame Trailer Coupler

Today, we're going to be taking a look at the a-frame trailer coupler. This is designed for a two and five sixteenth inch hitch ball. The a-frame coupler is going to let you hook up your trailer to your tow vehicle. It's a weld on installation. It's going to provide the connection point for your two and five sixteenth inch hitch ball. This coupler is going to feature a gross weight capacity of fourteen thousand pounds with a maximum tow weight capacity of twenty-one hundred pounds.

It's going to feature the thumb latch mechanism that makes it very easy to clamp around the hitch ball for a nice tight secure connection. In order to do that, all you have to do . I like to place an index finger underneath. Thumb on top. Lift up and then pull it back. It's got the groove in it, so it's going to remain in the open position.

That way, you don't have to hold it back or you don't have to insert any pins or clips or anything like that. Once it's in the open position, you can go ahead and place your coupler over top of your hitch ball and then when you ready to secure it, simply just lift it up out of the groove. It's going to go forward and then it's just going to rest back down so it's really nice, very easy to use and operate. The units made from a sturdy steel construction. It's going to have a really nice clear zinc finish so it's going to provide great protection from rust and corrosion. Here on the back side, your going to notice, right here, that it has the built-in jack attachment point.

That's going to allow for quick and easy mounting of a round utility jack. That jack hole diameter is going to give us a measurement of two and one quarter of an inch and then it's also going to feature the three threaded mount holes. That way you can easily attach your round utility jack. When it comes to the overall dimensions, taking a look a the overall length, measuring from very back to very front, this is going to give us a measurement of twelve and seven eighths of an inch. There's a couple different width measurements that I want to go over with you real quick. The overall width from outer edge to outer edge, that's going to give a measurement of about ten and seven eighths of an inch wide.

Internal, so inside edge to inside edge, that's going to be closer to ten and three eighths of an inch wide. Now, here on that thumb latch mechanism, you're going to notice a small pin hole. That's designed to accept a coupler pin or a coupler lock. That pin hole diameter is five sixteenths of an inch and in the span that you would need for a pin or lock, measuring from this point here to the same point on the other side of that mechanism is going to be seven eighths of an inch. Now, if you're in need of coupler pin or a coupler lock, they are sold separately and you can find them right here at etrailer.com. That's going to do it for today's look at the a-frame trailer coupler for a two and five sixteenth inch hitch ball.

Ratings & Reviews

4.8

155 reviews
5 Stars
(136)
4 Stars
(13)
3 Stars
(2)
2 Stars
(1)
1 Star
(3)
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by:
Great communication and service, and very nice coupler - with one exception that I was surprised about - it doesn't have any ability to adjust the fit to the ball.

When inserting the ball and clamping it down, there is about 1/4" of free-play, which is more than I would expect, and more than I like. I like to see it being more in the range of 1/8 to 1/16 inch maximum free-play, while still having free rotation and movement in all manners.

I'm certainly no expert on trailer hitches, but I do have a lot of engineering background, and 1/4" play seems significantly more than I would think is necessary, and I feel that it could potentially lead to damage as the coupler bangs up and down on the ball.

The more free-play you have, the more inertia the coupler to ball will accumulate before banging at the stop - going each direction (both up and down).

I'm glad I got a 14,000 lb coupler for my 8,000 MGVW trailer. I assume the 14,000 coupler will be significantly heavier duty than an 8,000 coupler would be, so hopefully, it should last a long time - even though it's a bit loose.

In fact, the coupler I just replaced to install this coupler - the original coupler was very similar design, and the (upper) coupling portion of the coupler was split open about 1/2" or more length, and 1/8 inch or more at the widest point of the split. That coupler, which I'm sure was original on the trailer, has manufacture date of 1992 - but it sat unused for 15 years, so it had roughly 20 years of use.
by:
Works like it should
by:
A1
by:
I ordered this coupler to replace the one on my trailer that is bent. I thought I hit a dip that caused the coupler to twist or something. All the markings on my trailers coupler match this one. Turns out this one is bent too! I'd imagine they all are. So I guess I didn't bend the coupler on my trailer, it was already bent from the factory just like this one. I need to return it. No reason to change a bent coupler with one that is already bent.
Mike L. profile picture
Etrailer Expert

Mike L.

9/10/2026

I'll get that processed for you, Peter.

Peter B. profile picture

Peter B.

9/21/2026

@MikeL Hi Mike, I was just at Hershey park RV show and none of the intech campers there had bent couplers like on mine and the one from etrailer. I spoke to someone from intech and he thought maybe there was a batch of bent couplers. So I would like to replace the coupler I ordered from etrailer with the same thing. The one I have is still new in the box. Can you please set this up for me. I hope I'm not going to be charged for this. Thank you, Peter
by:
I needed to replace a Shelby 5104 coupler on my 25 year old flatbed trailer. etrailer recommended this one (CA5400B) as a replacement. I ordered it and Joshua B got it shipped out in record time. The CA 5400 coupler is pretty much an exact copy of the Shelby 5104. The new one fit like a glove and had good instructions on weld locations and sizes. The problem I encountered on the replacement was the old coupler had been welded in just about every location possible forcing me to have to cut it up in small pieces for removal. I’m back on the road, thanks etrailer.
Brooke M. profile picture
Etrailer Expert

Brooke M.

5/6/2025

Joshua is awesome for sure! I'll make sure he sees your review. And man! Took some elbow grease to get that old coupler off to say the least - happy to hear you're back up and running though :) what do you haul?

by:
I replaced my old 2 inch hitch with a new 2 5/16 inch hitch so now I do not have to change balls for my trailers
by:
The item I ordered was exactly what I needed. It arrived on time. The only draw back it was not packaged well. One piece of tape to secure the top and the item was not wrapped carefully and cut though the box in two locations as it rattled around. Its heavy metal so there was no damage. Otherwise, I would order again.
by:
Part is quality, arrived quickly, and will solve our problem with the trailer.
by:
Excellent and quick service! Brieann C does a great job following up and makes sure that you’re happy with your product.
by:
Hasn't failed me yet and we've been using it religiously over the past year to haul scrap iron and derby cars. A little bit of silicone spray and TLC and it's still making me money. If it's still available when I need it, I'd still buy it. Nothing beats simplicity in a fast paced world. As for the quality, well, I just hope my welds last.
Brooke M. profile picture
Etrailer Expert

Brooke M.

5/1/2025

Well said, Junior! Sounds like it's working hard for you for sure -- here's to another solid year :)

by:
Looks good! Just need to find time to cut the old one off and welders this on!
by:
Very well made coupler. Better quality than the original one.
by:
Product came on time and in great condition. Exactly what I needed.
by:
Great to Deal with will be buying from again AAA++++
by:
Works great replaced old tunge when you would load something it would pop off the ball of hitch.
by:
Had a professional certifies welder stick weld this on for me. Worth the 3 hundred to do it Works but hard to engage the ball lock. Have to make sure you are as far forward as possible to drop it on the ball. The lock is a pain to engage sometimes have strike it to get it to lock in
by:
thank you again for the correct parts the first time around. eTrailer is the best!
by:
Website easy to use. Found exactly what I needed. Very fair price. I needed the coupler soon so I used 3 day shipping. Came when scheduled. Was correct piece. I could not find this piece in my town. One of the trailer repair shops told me about the website. Will definitely use again when I need something for my trailers. Don’t have a picture but it looks like it did when the trailer was new.
Tim profile picture

Tim

3/3/2021

Still great. Would recommend

by:
Had to replace my coupler after an accident, this one worked as needed. Good quality.
by:
Great product! Can handle more weight than the one I took off.
by:
Just purchased this coupler for the lowbed I am getting ready to rebuild. Like the look and the price of the coupler. Can't wait to cut away the mess the prior owner welded on. figuring the new coupler, jack, safety chains and wiring coupler box will make this a nice complete lowbed trailer to fill my needs for moving my 4x4 Cub Cadet tractor around for working on our properties.
by:
Exact replacement for my 10,000 lb (gross trailer weight) enclosed cargo trailer. I had a professional welder install it, loaded the trailer to 10k, and pulled it 2,000 miles. Works and looks as expected.
by:
We are very happy with our purchase and loving working with etrailer! The prices are great and items come quickly. Everyone at etrailer is always so helpful. We always get the small town feel when ordering from them. The coupler we ordered is exactly what was needed for our snowmobile trailer. Thanks!
by:
Quality Seems Great. I did incur a problem with this coupler being slightly wider than the original one that I cut off. This could be in part that I'm switching from a 2" coupler to a 2-5/16". If this is just simply because it's wider you may want to purchase a new bottom jack support plate to install with this. Otherwise excellent service and fast delivery from etrailer yet again!!
by:
Th coupler was installed, and as far as I know, we have not had any issues with this product. The trailer is used regularly to haul steel for our structural steel fabrication shop. Thank you for your excellent service. We buy all of our equipment & trailer products from eTrailer.com.
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See what our Experts say about this etrailer A-Frame Trailer Coupler


Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Cole B
Installed by:
Cole B
Employee Wilson B
Updated by:
Wilson B
Employee Ronnie R
Updated by:
Ronnie R
Employee Mike S
Updated by:
Mike S
Employee Amanda M
Written by:
Amanda M

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