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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. Standard Coupler
A-Frame Trailer Coupler - Thumb Latch - Black - 2-5/16" Ball - Weld On - 14,000 lbs
etrailer

A-Frame Trailer Coupler - Thumb Latch - Black - 2-5/16" Ball - Weld On - 14,000 lbs

Part Number: CA-5400-B
In Stock
$41.55
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. Black powder coat finish provides durability and rust resistance. 1-800-940-8924 to order etrailer a-frame trailer coupler part number CA-5400-B 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 - Black - 2-5/16" Ball - Weld On - 14,000 lbs. A-Frame Trailer Coupler reviews from real customers.
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  • Reviews (136)
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etrailer A-Frame Trailer Coupler - CA-5400-B

Highlights

  • Heavy-duty capacity: Supports a massive 14,000 lbs with a 2-5/16" ball fit.
  • Easy hookup: Thumb latch smoothly clamps and unclamps around the hitch ball.
  • Durable finish: Black powder coat resists rust and corrosion.
  • Universal fit: Standard 50-degree A-frame design suits most trailers.
  • Built-in jack point: Conveniently mount round utility jacks with 2-1/4" jack hole.
  • Weld-on installation: Secure attachment ensures long-lasting use.

Features to know about

Effortless Towing Precision: Thumb Latch Mechanism

Hooking up your trailer just got easier with the intuitive thumb latch. Simply push down and slide to open or close the ball socket. It ensures a hassle-free, secure connection every time, saving you time and effort.

Heavy-Duty Durability: Black Powder Coat Finish

Whether you're battling harsh weather or tough road conditions, the black powder coat finish on this coupler provides exceptional durability and rust resistance. Your equipment will look and perform like new, every time.

Safety First: SAE J684 Certified

Quality and safety are non-negotiable. With the SAE J684 certification, you know you're using a product that meets rigorous standards, ensuring your trailer is securely hitched and ready for the road.

Versatile Hookup Compatibility: 2-5/16 Inch Ball and 14,000 lbs GTW

Whether you're hauling construction materials or towing a camper, this coupler's rated capacity of 14,000 lbs and compatibility with a 2-5/16 inch ball means it’s equipped to handle heavy loads with confidence.

Hassle-Free Installation: Weld-On Design

No more dealing with unreliable bolts; the straightforward weld-on design ensures a permanent, robust attachment to your trailer's A-frame. It's a solid, worry-free choice for trailer modifications or new builds.

Seamless Jack Integration: Built-In Jack Attachment Point

Designed with convenience in mind, the coupler includes a built-in jack attachment point, making mounting a round utility jack quick and straightforward. It's about smoother parking and easier hookups every time.

Specs

Dimensions

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

Weight and Capacity

  • Weight capacity: 14,000 lbs

Warranty

  • 1-Year warranty

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





Customer Satisfaction Score:

Ratings & Reviews

4.8

136 reviews
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. Black powder coat finish provides durability and rust resistance.

by:

A1



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:

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:

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:

thank you again for the correct parts the first time around. eTrailer is the best!



by:

Great product! Can handle more weight than the one I took off.



by:

I need it. You have it. I order it and it comes. Looks like it fits. Couldn't be better unless they installed it too.

David profile picture

David

2/7/2025

Still there working.

Jesse M. profile picture
Etrailer Expert

Jesse M.

2/7/2025

@David Happy to hear your coupler is still working as it should. Come back anytime you need anything.


by:

Works great replaced old tunge when you would load something it would pop off the ball of hitch.



by:

Product is good the shipping was way to slow I ordered it on the 5th and watched it sit for 3 days before getting packaged and finally sent out it said when I perchised it the I would receive it by the 10th so it didn’t come until the 12th so it was to late had to buy another one so now I don’t need it



by:

Great products



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:

As described. Looks good to go.

Cole profile picture

Cole

11/4/2024

Been working great! No issues. The powder coat has held up nicely and the coupler is still smooth.



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:

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:

Arrived when scheduled have not Installed yet. Matching ball size to my other trailers.

Lloyd M. profile picture

Lloyd M.

5/31/2019

It works very well. Replaced a 2 side hinge so now I have all 2-5/16 ball hitches.



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.



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:

etrailer is a great site, easy to use, everything came in a reasonable time and in one piece. The prices are very reasonable and I love the free shipping.



by:

Item just as described. Perfect fit. The ONLY part bad on my old coupler was the spring that held the latch down. It would have been great IF someone offered a replacement spring for this BUT it is a welded unit and very hard to remove ANY moving parts. The coupler I ordered was perfect!



by:

Everything I expected from etrailer A quality hitch



by:

Package arrived pretty beat up but the coupler was in perfect condition. ( except for the made in china )
Looks like it will work well for what I need. 2 5/16 ball and rated for 14k lbs.
haven’t had it installed yet so 4 stars for now.



by:

Great products, prices and shipping! Chains & tongue that had to be repaced are holding up great!



by:

I looked in a lot of places on the web for this product and found it at etrailer for a good price on both the product and shipping.



by:

The A frame coupler worked great etrailer always goes over and beyond to help out Thanks


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Show More Reviews

See what our Experts say about this etrailer A-Frame Trailer Coupler

  • What Trailer Frame Angle Should A-Frame Trailer be Made to To Fit Standard Couplers
    So the standard angle for A-frame trailers where the two beams meet is 50 degrees. So while I can't get you a CAD drawing for the coupler part # CA-5400-B if you are trying to design your trailer to have the correct angle for the A-frame you should make it as close to 50 degrees as you can and standard couplers like this will fit and work well.
    view full answer...
  • Solution for Needing Shelby Coupler Repair Kit 5104
    Hey Ed, we can help but we don't have repair kits for the Shelby A-Frame coupler you have. Best option would be to replace the coupler like with the Fulton A-Frame Coupler part # FE443050303 which also has a 2-5/16 inch ball size. We do not carry the Shelby brand at this time so we can't get any of their repair kits.
    view full answer...
  • 50 Degree A-Frame Coupler Availability
    Hey Dan, the angle of the A-frame coupler part # CA-5400-Z that you referenced is the standard 50 degree angle. For a similar coupler that is in stock and ready to go we have the part # CA5400 or the part # CA-5400-B.
    view full answer...
  • What are the Dimensions of the Fulton A-Frame Coupler, 2-5/16" Ball F44305R0317?
    I sure do Jeremy. The Fulton A-Frame Coupler, 2-5/16" Ball item # F44305R0317 has the standard 50 degree angle for mounting to the trailer frame and overall measures 12-1/4" long x 11-1/4" wide. It works with a 2-5/16" and has a 10,000 lbs capacity. What kind of trailer do you have? You can add this information and any other questions you have where it says Reply to Jerred H and I'll be happy to answer them.
    view full answer...
  • Is There a Repair Kit For a Thumb Latch Coupler # CA-5400-B?
    Currently the only way to replace the coupler mechanism on the A-Frame Trailer Coupler # CA-5400-B is to replace the entire coupler. If you are going to do this you should look at changing to the Demco 50-Degree A-Frame Trailer Coupler # 12660-97SP as it is much easier to use and can be repaired with the Repair Kit # DM6008 in the event it breaks down the road.
    view full answer...
  • Difference Between Standard and Underslung B&W Continuum Weight Distribution System
    The difference between the standard and underslung B&W Continuum Weight Distribution System is the coupler style they are designed for. If you have a standard coupler like the # CA-5400-B mounted to the top of your frame then you need the standard Continuum # BW78FR. If you have an underslung coupler mounted to the bottom of your frame like # CA-5335-B then you need the underslung Continuum # BW88FR.
    view full answer...
  • Solution for Repair Kit for A-Frame Coupler Latch on 1969 Airstream
    I do have a solution, but those repair kits are designed for an Atwood coupler and have been discontinued. Atwood couplers are no longer made so neither are the parts. The best solution is to replace the coupler with a new one. For a weld-on option you could use the # CA-5400-B or for a bolt-on the # DM13205-95. I have attached some review videos along with a link to all of our A-frame 2-5/16 couplers for your reference.
    view full answer...
  • Recommended 2" and 2-5/16" A-Frame Couplers for an Older Trailer
    I took a look at your current situation and it's looking like there isn't going to be a replacement latch kit available unfortunately. Instead, you're going to need to replace the entire coupler with something like the A-Frame Trailer Coupler # CA-5210-B which is a weld-on style replacement that'll work with 2" hitch balls and has an 8,000 lb capacity. If you needed a 2-5/16" coupler, then the # CA-5400-B would be better suited for you. This coupler is also has a weld-on install and...
    view full answer...
    Image 1 for
  • Replacement Parts for an A-Frame Atwood Trailer Coupler with 2-5/16 Inch Hitch Ball
    I do have an option for you but we no longer carry the Coupler Repair Kit for Atwood 2-5/16" Yoke Style part 15774. Instead, I recommend replacing the entire coupler for which you can use the A-Frame Trailer Coupler part # CA-5400-B. Atwood was bought out by Lippert and their parts are becoming increasingly harder to find which is why I recommend a replacement coupler. This coupler fits most standard a-frame trailers and will accept a 2-5/16" hitch ball. It also has a black powder coat...
    view full answer...
  • Can Atwood Coupler Be Repaired on Vintage 1967 Airstream Travel Trailer
    According to my research your 1967 Airstream would need the Atwood Repair Kit AT88061, but unfortunately Atwood has gone out of business so this is no longer available. To get a working coupler again you'll need to have your current coupler cut off and a new one welded on, for which I recommend the 14K etrailer A-Frame Trailer Coupler - Thumb Latch - Black - 2-5/16" Ball # CA-5400-B. This is a pretty standard coupler and will do a great job as a replacement for your current setup.
    view full answer...
  • Can You Tighten An A-Frame Coupler Or Must It Be Replaced
    If you feel the connection point between your trailer coupler and hitch ball is too loose then the trailer coupler will need to be replaced because there is no way to tighten this. The connection point does need to be loose enough for the coupler to rotate on the hitch ball but not loose enough where you have a bunch of play. If you are in doubt it would be wise to replace the entire trailer coupler for both peace of mind and security. In some cases, you can obtain a trailer coupler repair...
    view full answer...
  • Fit and Compatibility of etrailer 2-5/16 A-Frame Trailer Coupler
    The etrailer # CA-5400-B weld-on coupler you were looking at would be a great replacement for your current Parker Performance A-frame coupler. This coupler has a 2-5/16 inch ball and a weight capacity of 14,000lbs. I have linked this product to this page for your purchasing convenience.
    view full answer...
    Image 1 for Image 2 for
  • Coupler Repair Kit for 1987 Airstream with 2-5/16-Inch Trailer Coupler
    Trailer makers like the good folks at Airstream generally don't keep track of the brand and model of coupler they install so you'll want to try to find branding and part number information stamped into the coupler on your trailer. We do have repair/rebuild kits and replacement parts for many brands and models of A-frame coupler that are displayed on the linked page. I also linked our page for 2-5/16-inch A-frame couplers, both bolt-on like # BD44150WH301 and weld-on like # CA-5400-B, in...
    view full answer...
  • Can I Rebuild my RAM A-Frame Trailer Coupler CA-5400-B
    The A-Frame Trailer Coupler part # CA-5400-B is a full replacement and the only way I know to repair it when it is broken. The Repair Kit for etrailer and Ram A-Frame Couplers part # CA-5100-RK is designed for original trigger latch couplers different than yours. The A-Frame Trailer Coupler w/ Round Jack Hole part # CA-5280-RB is a nice upgrade that can be made which is a 15K coupler that is easier to use and service. Repairs can be made if you're confident it will work and hold but by...
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  • Is There A Repair Kit Available For The A-Frame Coupler CA-5400-B
    The only option we will have would be a full replacement of the coupler. Unfortunately, there currently is not a repair kit offered for the # CA-5400-B couplers. As this is a weld on coupler, the latch components can be removed from a new one and then installed on your current one.
    view full answer...
  • What Is the Difference Between the Blue Ox SwayPro Weight Distribution Systems BXW1003 and BXW1000
    The Blue Ox SwayPro Weight Distribution System part # BXW1003 is for trailer's with an under-slung coupler like part # CA-5335-B. If you have an over-slung coupler like part # CA-5400-B then you will need the Blue Ox SwayPro Weight Distribution System part # BXW1000 or you can just swap out the head, the Head for Blue Ox SwayPro Weight Distribution Systems part # BXW4011.
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  • What is Difference Between Overslung and Underslung Trailer Coupler
    An underslung trailer coupler is one that attaches to the bottom of the trailer frame and an overslung one is one that attaches to the top of the frame. The Replacement Head for Blue Ox SwayPro Weight Distribution Systems part # BXW4011 is for trailers with an overslung mounted trailer coupler like part # CA-5400-B whereas the Replacement Head for Blue Ox SwayPro Weight Distribution Systems part # BXW4012 is for trailers with an underslung mounted trailer coupler like part # CA-5335-B.
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  • Replacement for Weld-On A-Frame Coupler with 14,000 lb Capacity
    The coupler you referenced does not have replacement parts or a latch repair kit so if the thumb latch is busted you will need to replace the unit with the A-Frame Coupler # CA5400. You can replace it with the same unit, the A-Frame Coupler # CA5400 which has has an oily finish but the same one is available without the oily finish and a black coat of paint, the A-Frame Trailer Coupler # CA-5400-B. There is another option if you want to go with a different manufacturer, the Fulton A-Frame...
    view full answer...
  • Replacement For A-Frame Coupler CA5400
    There are no repair kits available for the A-Frame Coupler # CA5400, so the best we can offer is to replace it with the same or, if you don't want the oily finish, the A-Frame Trailer Coupler # CA-5400-B.
    view full answer...
  • Replacement Coupler For a 2017 Grand Design 2670MK with Loose Latch Mechanism
    I recommend switching to the Demco 50-Degree A-Frame Trailer Coupler # 12660-97SP on your 2017 Grand Design 2670MK. I cannot locate anyone who carries a replacement latch mechanism for the A-Frame Trailer Coupler # CA-5400-B. With the Demco you can easily replace the latch with the Repair Kit # DM6008. It is also auto latching so you will only need to open the latch when disconnecting your trailer.
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  • Replacement Trailer Coupler Repair Kit for Trailer Coupler
    It looks like you need a trailer coupler repair kit for your trailer coupler. If that is the case then I would love to help but unfortunately I cannot identify the correct replacement coupler repair kit for you based on the photo you have attached. The only way for us to get you the correct replacement coupler repair kit is if you can provide us with the part number for your trailer coupler as they are not universal. I would also like to point out that we do not carry a coupler repair kit...
    view full answer...
    Image 1 for
  • Fulton A-Frame Coupler Repair Kit
    We only have two options for a Fulton A-frame coupler repair kit so I will list them for you here. The # F640801 fits the # F44305R0317 and # F44305R0500. The # F670801 fits the 44125W and 44150W series couplers. None of these are actually 14k so unless that is incorrect I don't think we have a repair kit. A lot of Fulton replacement parts have been out of stock for more than a year since they were acquired by First Brands so it is possible one exists and we don't have it right now. Some...
    view full answer...
  • Recommended Replacement Trailer Jack for Shelby 5104 Coupler
    For your Shelby 5104 trailer coupler I recommend the Round A-Frame Trailer Jack - Sidewind - 15-5/8" Travel - 5,000 lbs # TJA-5000S-B. This will use the Footplate for 2,000-lb and 5,000-lb Round, A-Frame Jacks # JF-99.
    view full answer...
    Image 1 for
  • Options For Repairing Or Replacing A CA-5400-B A-Frame Coupler
    Hello Barbara. The # CA-5400-B A-Frame Coupler should be snug on a 2-5/16" ball. If yours is loose it could be due to a bad latch, or the inside of the coupler has just worn out over time and caused it to become loose. Unfortunately there is not repair kit available for this coupler, so your best option would be to remove the old coupler and install a new one. If you do end up replacing it, I suggest the Demco A-Frame Coupler # DM15633-81. These are known to be more durable, and have...
    view full answer...


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Info for this part was:

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Employee Jameson C
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Employee Cole B
Installed by:
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Employee Wilson B
Updated by:
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Employee Ronnie R
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