To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
The Curt A25 is built from heavy-duty steel and rated for 25,000 lbs gross towing weight with a 6,250 lbs vertical load limit, giving it the strength to pull large 5th wheels without flex or movement. The carbide powder coat finish helps protect it against wear over the miles, and the fixed, above-bed design keeps everything solidly planted for stable towing. It’s a hitch that feels tight and controlled when you’re hauling serious weight.
The rounded, interlocking two-piece jaw completely wraps the king pin for full 360-degree contact. That solid grip means less rattle than slide-bar models and a smoother ride down the road. You’ll notice how steady it feels under acceleration or braking—no banging or clunking between truck and trailer—so long trips stay calm and predictable.


The color-coded lock indicator takes the guesswork out of hitching. Red shows uncoupled, yellow shows ready to couple, and green means you’re locked in for towing. It’s easy to see from the handle or right on the hitch itself, so you can confirm your hookup without climbing in and out of the bed. The handle also self-resets after uncoupling, so it’s ready when you back under again.
The fully articulating torsion head self-aligns as you back up, helping the king pin glide into place with less effort. It also suppresses road shock and reduces noise once you’re hitched. When it’s time to clear your bed, pull one pin to lift off the head—it’s designed so one person can remove it solo. That combination of smooth operation and quick breakdown makes towing days simpler from start to finish.
With 4" of height adjustment built in, you can fine-tune your setup for level towing and proper bed rail clearance. The included plastic lube plate ensures a smooth connection during hookup, and built-in zerk fittings make lubrication easy to keep up with. Everything about this hitch—strong construction, smart controls, and easy maintenance—adds up to reliable performance every trip out.
This fifth-wheel hitch is compatible with rotating pin boxes, such as the Reese Sidewinder, Reese Revolution, and 5th Airborne Sidewinder, only when used with a wedge (sold separately).

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.
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