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The Curt A25 5th Wheel Trailer Hitch with S25 Slider is rated for 25,000 lbs gross towing weight and a 6,250 lbs vertical load limit. It’s a heavy-duty setup built from sturdy steel with a durable carbide powder coat finish that stands up to seasons of towing. The interlocking 2-jaw system wraps the king pin for full 360-degree contact, cutting down on rattle and giving you a tight, true connection that stays steady over long miles.
The hitch head pivots on Curt’s spherical axial bearing for smooth, quiet operation. It helps control road shock and reduces chucking so your trailer tracks cleanly behind you. The torsion head self-aligns during hookup and flexes naturally with the trailer over bumps or uneven ground, keeping your ride calm and predictable.
A quick glance at the color-coded lock indicator shows exactly what the jaws are doing—red means uncoupled, yellow means ready to couple, and green means locked for towing. The indicators are visible from the cab, so you can confirm the hitch’s status without climbing into the bed. When you unhook, the handle resets itself to the ready-to-couple position so you’re ready to hitch back up when it’s time to go.
The integrated S25 slider gives you 12" of fore/aft travel for slow-speed turns. It automatically latches in both directions and provides the clearance needed to prevent contact between your trailer and cab during tight maneuvers. The slider’s solid design anchors securely to industry-standard fifth-wheel rails for a stable towing platform every time you hook up.
Clearing the bed when you’re done towing is simple. The A25 head lifts off with one pin so a single person can manage removal without heavy equipment. Built-in zerk fittings make lubing quick, and the included plastic lube plate keeps the king pin gliding smoothly into place during hookup.
Alternate Instructions
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hello, everybody. This is Jeff at etrailer.com. Today we're gonna take a look at the CURT Universal Carbide Black Finish Fifth Wheel Base Rails. Now, these base rails will install in your truck bed. And they provide the necessary attachment points for your fifth wheel hitch installation. Now, when these rails are used with the CURT's Custom Mounting Brackets, which we sell separate on a website, these rails will cut in half the time it takes to install your fifth wheel trailer hitch.
We mentioned the finish on this. I'm gonna zoom in and sort of show it. It's a carbide black finish, sort of like a matte black finish, so it matches the finish if you use it on the CURT Q5 20K Fifth Wheel Hitch. Now, these rails are universal, so they will work with the following fifth wheel hitches. They work with the CURT brand, the Draw-Tite, the Hidden Hitch, the Reese, and even the Husky.
This part here will include the two base rails. Now, we mentioned the mounting brackets, the custom mounting brackets, the hardware, and an installation kit is all sold separately. The length on these rails, if we put a tape measure on them from one end to the other, right at 43 inches long. But that should do it for the review on the CURT Universal Carbide Black Finish Fifth Wheel Base Rails.
Ratings & Reviews
Quick ship and easy to install!
Heavy heavy lol looks great package well
Great
Excellent product.
Hitch was easy to install. It's also very easy to use,no guessing as to what position it's in.
The ride was great, not a lot of bounce.
Came with everything in the description installation was fairly easy
Easy installation great fifth wheel.
Thank you for making this process so quick and easy. Package arrived 3 days earlier than expected. Was notified every step of the way what stage my order was in. Very pleased with my experience working with etrailer.com
Great product. Installation time is misleading on the paper but would recommend if you have the proper tools and time. Had to remove gas tank which was the hardest part of the installation. The quality of the product is great and will buy again when needed in the future
only received part of my order.i am alittle disappointed.
Shannon N.
12/29/2023
Yes it all arrived yesterday .I just wasn't expecting it on three different trucks. I am happy with the hitch and the timely shipping. Merry Christmas.
Mike L.
12/30/2023
Needed the 41/2" bolts and space described, however not included in Kit. According to CM manufacturing it is not part of the bolt kit for my truck?? but was needed to fasten throught the bed support frame.
Mike from E-Trailer was very helpfull, but the manufacturer needs to review their product.
Good hitch heaven duty
I had no pro lem wifh my hitch
Ot went on well. Had to put on extension to the hitch because my bed was to short
I have a 2018 Ram 1500. Everything worked and fit as should. Holes and Bracket mounts all lined up. Directions were clear on where to drill holes in bed and bed rails. Install took about 6 hours. Had to remove rear tires, wheel well shield and spare tire to access everything. Also there is some notching involved to get at some bolts. I would recommend this product.
I have no mechanical ability, and I have never seen or used a 5th wheel hitch until a week ago when I impulsively bought my wife a 5th wheel camper for her birthday. I had no idea what I needed to make things work. After a little research on the website I learned that this semi custom kit was exactly what I needed (rails and frame mounting brackets) and that it would fit my truck perfectly. The parts arrived at my house a lot quicker than I expected, and i was really nervous about starting this job because i knew it involved drilling holes in my truck bed and in the frame of my truck. I started the install with my 12 year old daughter, and we managed to get the entire job done in about 6 hours. We actually found a YouTube video that walked us through the entire install with no problems. We did the entire job with nothing but a few common tools (wrenches, tape measure, screwdriver) and a battery powered drill. If you need an inexpensive and easy to install system to haul a 5th wheel with a 1/2 Ram pickup, then this is for you!!!
This works great once installed, however I will warn anyone with a Ram with air springs, this will not work without modification, and definitely not a bolt on solution. This took close to 6 hours to install (instructions say 90 min), mainly due do the front brackets having to be mounted right where the air spring sensors are mounted. This required us to have to weld the brackets to the frame and widen the holes in the brackets to be able to mount the sensors in the same place. I would recommend a different product if you have air springs.
The instructions, while not the best, were still pretty straight forward but make sure you closely follow where to put the holes in the truck bed, which can only be seen in the diagram.
The Curt A25 5th Wheel Trailer Hitch with S25 slider worked perfectly on my 2024 GMC Sierra 2500HD Denali. Install was a breeze. Great pricing as well at etrailer.com.
Installed on a 2017 Ram 1500 Sport Quad cab for pulling my small fifth wheel camper. Installation instructions were straightforward for a first time installer. Everything came in the package that was required. Installation was somewhat challenging. Removal of the fuel tank was required to gain enough access on one of the attachment points. Not a huge deal, but working on the ground it was not ideal. The biggest thing to note is that you WILL have to cut out parts of the bed sill to install three of the forward bolts and hardware. Unfortunately there is no way around this due to dimensional requirements for placement of the rails. A small grinder or cutting torch is required to complete the job. Again, completing the install on a lift is highly preferred, but I did mine by jacking up the rear of the truck and working underneath. Once installed, it is very secure and I've had absolutely no problems with it. It's a nice clean look and should last for the rest of the use of the truck. If you are a decent backyard mechanic and can follow instructions (both on paper and YouTube/videos) you should be able to accomplish this.
I order the items I need and they were immediately placed for delivery. I received hitch and slide quickly. Packages were shipped with care. Excellent instructions.
It arrived on great shape for being so heavy! Packed very well.
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Katrina D.
12/23/2023
Tracking is showing that it has finally arrived. Can you please let me know if the tracking is correct or not? Sometimes, packages will deliver to the wrong address, so I also recommend you contacting your neighbors if you still have not received it to see if they got it in your place.