Arrives before Christmas 
Heavy-duty 5th-wheel trailer hitch has interlocking jaws, a torsion head, and a color-coded lock indicator for safety and security. Non-binding slider ensures proper clearance during slow turns. Rails and installation kit included.
Features:
Specs:
Unlike slide-bar models, the rounded, two-piece jaw on this fifth-wheel trailer hitch inhibits rattle and movement by securely wrapping around your trailer's king pin, resulting in easier hookup and a safer, quieter ride.
Get peace of mind with Curt's color-coded lock indicator. Just look at the indicator - either the one on the handle or the one on the hitch itself - to determine whether the jaw is in the correct position to uncouple (red), couple (yellow) or tow (green).
Curt's unique spherical axial bearing provides a durable pivot point that allows easy, 360-degree movement of the hitch head. This ball joint is designed for smooth, quiet operation with less clunking and chucking.
Most often used on trucks with 6' and 6-1/2' beds, this slider helps to eliminate clearance problems during slow-speed turns. When you are towing a fifth-wheel trailer, your hitch must be situated on the cab side of your truck's rear axle. However, at slow speeds you can use a slider to slide the fifth-wheel hitch (and the trailer) toward your truck's tailgate and past the rear axle, creating enough space between the cab of your truck and the trailer to permit less-restricted turning.
Alternate Instructions
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi everyone. Aiden here with etrailer. Today we're taking a look at this Curt S 25 sliding base for your fifth wheel hitches. This is gonna be designed to help get us some additional clearance from the cab of our truck when we're carrying our fifth wheels and give us an extra 12 inches of space to make some tight turns. There's gonna be a variety of different slider bases that Curt makes, all with different fits and we'll talk about those a bit in this video. So it's important to get the right one for your fifth wheel head, but let's get into it and check out the S 25.
So when you're operating this you wanna see how easy it's gonna be from the outside of the truck because obviously when it's in use we've got our trailer hooked up. So on the inside, if we reach over the bed rails there's a pin with a retaining clip that controls whether the release lever is opened or not. So we can pull that lever open, pulling it towards us. We'd go and pull our truck forward and the fifth wheel head would slide forward. Now for me, just doing it from the outside of the bed here it's a little difficult to do, but while you're driving, it would auto latch in place right there.
We could come out re-pin it and get our better turning clearance from here with an additional 12 inches of space from the cab of the truck. With this being a manual slider you're going to be getting out of the truck, interacting with it whenever we need to get better turning clearance whether we're parking the camper or just coming across a sharp turn while we're driving, you need to be able to interact with this in a somewhat easy way. I think Curt did a great job here at making this handle easy to get to and easy to pull because we're pulling it towards us and it's not working against us. Something I could compare this to is B&W's system, where the handle is at a similar height but you're pulling it back so it's kind of in line and we're never pulling it towards us. Just makes it a little bit more complicated and difficult to use from the outside of the truck right here.
So for me, Curt wins the ease of use here as far as the handle operation goes. Now while we're talking about the B&W systems there are a few more differences. So if you're looking at building a system from the ground up, that includes the slider and the fifth wheel head itself, you've got options. for me the B&W one is just a bit bulkier and maybe a little bit harder to get in and out of the bed. The Curt slider here has handfuls at the front and back and it's a little less bulky.
So it's pretty easy with a friend to grab these dedicated hand folds, get it in and out of the truck bed and set it up in your rails. As for mounting the fifth wheel head itself it's gonna be a little bit easier on the Curt here as well. It's got these plates on the outside that we'll see a little bit later in the install process that help hold it at the designated height. So then you can just run your bolts through get them attached and torque down properly. Whereas for the B&W system, it's all a bit more internal and harder to get to. So for that install process and that setup it's maybe a little bit more complicated. So if you're frequently going to be taking the fifth wheel in and outta your truck bed then maybe the Curt's a better option. Whereas if it's staying in there full-time you can go with the B&W. It really just comes down to your preference there. Now, if you're not building a system entirely from scratch let's say we already have one of the fifth wheel heads maybe from Curt or from B&W then I just go with whichever slider base is compatible with your fifth wheel head. There's no sense in buying a whole new system when you've got part of the components that will already work and you just need the right slider base. Speaking of which, this slider base that we're checking out today, the S 25, that's going to be designed to use with the A 25 series from Curt. If you've got a different fifth wheel head from Curt maybe like the E 16, the A 16 or the A 20 then you can check out the S 20 slider base. Just making sure you get the right one for the right fifth wheel. Now the slider has a gross trailer weight rating of 25,000 pounds, and obviously you also want to go by the fifth wheel head that you're using, and then be sure you're checking to make sure you're not overloading your vehicle either. Just go by the lowest rated component in your system and know that that's what the slider itself can handle. As for the overall construction of the slider it's a carbide black powder coated steel all around and you can definitely feel it as you're lifting it and setting it into your industry standard rails that the construction is solid and should hold up to the elements for a long time. I do wanna mention that it automatically latches in both positions. So whether we're getting some additional clearance from our cab or we're returning it to its natural driving position That handle will automatically latch back into place on both sides. So you only have to get out of the truck once. Now I mentioned it mounts up to your industry standard rails, and earlier I mentioned that it's very easy and straightforward to set up. So let's check out that process now. Getting the slider base into your bed, you're probably gonna want an extra set of hands because even without the fifth wheel head, it is pretty heavy on this side with the latch and everything. Luckily we've got some convenient handholds on either end. We can lift it up and make our way over to the tailgate and then make our way into the bed to get it to our rails. Before we set it into the rails, we do have these rubber isolators that can line up with the holes that are mounting tabs we'll use and that'll just help reduce the noise and the rattling that we hear whenever we're towing. We can maneuver it into place and drop it in, lining up with the holes. We will need to move our isolators in a little bit to line up. And once it's dropped in, we can pin it in place. Those pins should slide through those mounting tabs and our ISR rails and clip into place like that for all four locations. Now at this point all you have to do is install your fifth wheel head. That's not really included with the slider but what is included with the slider is these plates. It's gonna help you mount it up and get it bolted on. The fifth wheel head itself isn't super heavy on its own so it is easier to lift by yourself but you will probably need a second set of hands to get these plates in. Those will hold it upright at your desired height while you get the bolts attached and torqued down properly. And then these plates will slide through from the outside of the slider right here with the curve matching and the pins poking through on the inside. So our fifth wheel head will just drop into place and you can see how those holes will align. If you've got it at the lowest height setting you really don't need an extra set of hands. It'll support itself while you get this plate in place enough to just hold it there. But if you wanna raise that height up at all, you will probably need someone to help get this plate in while you have it at the proper height setting. And when that's done on both sides you can just take your hardware, run it through, have the nut on the inside, and then tighten and torque it all down properly. But with those plates in place I really don't need to worry about it. These bolts are very easy to get through. Once your fifth wheel head is in place that's really all there is to it for the install process. It's really great that the slider base is just a drop in install that made it very straightforward and simple, and it was easy to get the fifth wheel head installed as well. So if you need that slider base to get you that extra clearance from your cab or your truck you can do that and it's a pretty easy thing to add on, in addition to the fifth wheel head you already have. Thanks for watching.
Average Customer Rating: 4.7 out of 5 stars (375 Customer Reviews)
Heavy-duty 5th-wheel trailer hitch has interlocking jaws, a torsion head, and a color-coded lock indicator for safety and security. Non-binding slider ensures proper clearance during slow turns. Rails and installation kit included.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.
The product shipped and was received in a timely manner. The installation went very good, took me about 3 1/2 hours to install. Instructions were easy to understand. The installation kit came with many extra parts so I wasn't worried about missing parts. Items are very heavy so be careful lifting. The drillbit needed for the holes is 17/32 which is an uncommon bit to find at a hardware store. It would've been nice if the drillbit was included in the kit. I did find one at a local hardware store for $6.35. By the time I was done drilling my last hole the drillbit is now useless, burned the tip out and last hole was hard to finish. When I first started my measurements I didn't realize the truck model at the top of the page and initially measured for a GMC, but I own a tundra. I was thankful my wife came in and was talking with me and disrupted the job. After she left is when I realized I measured for the wrong vehicle. Double check everything before drilling. Very good product and would definitely recommend it to another person.
Easy installation great fifth wheel.
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.
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
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.
only received part of my order.i am alittle disappointed.
I did my research & saw excellent reviews for the Curt products. I was looking for a 16 locally but none were in stock & none could be available before I left to get our fifth wheel. So I had a 20 shipped to our destination which arrived a day earlier than expected. We had it installed & drove it back home—almost 2000 miles. It handled rough roads, construction zones & road work, and unexpected snow storms with ease. I am very happy with our unit & would strongly recommend Curt products.
Quick ship and easy to install!
Heavy heavy lol looks great package well
Poor and wrong instructions. Had to grind bracket. Had to heat and twist one bracket. Bolts to long. Had to cut. Finally got installed and it should be fine. I wanted to get the custom kit but it was gonna take about five weeks to get. If I had known it was gonna be this hard to install I would have waited.
Excellent product.
The hitch came in two boxes, one for the head and one for the side legs. The head box (coroplast) was perfect but the legs box (cardboard) was all but destroyed. The legs were not well packed and have several scuffs / scratches in the paint. Some right down to the steel needing repaint. Overall the hitch is a heavy, high quality unit and fit the truck perfectly.
I haven't used the hitch yet, but while installing it I noticed:
1) the 4 bolts which connect the hitch head to its legs, or base boxes, are a smaller diameter than the 8 bolts that hold the pin box onto my 40' 5th wheel trailer, and
2) when mounting the legs into the 5th wheel prep package on my 2019 F350, I found that a snug adjustment is not possible, because of one or both of these design choices: a) coarse thread bolts are used here (vs. fine thread), and/or b) there is only one hole through each of the 4 base mounting bolts for the cotter pin to go through, so the castle nuts can only be made tighter or looser by turning the nut 1/6th of a revolution.
This means that when you lock the hitch down by rotating the handles 90 degrees, that the locked-in position either feels too loose or too tight because 1/6th of a revolution of the nut is too much. If these bolts had a 2nd hole in them (or were fine thread) that would allow a 1/12th of a nut rotation adjustment. Smaller nut height adjustment would also mean a much greater potential of being able to adjust the locking levers to a firm pressure setting.
This is my first run-in with a fifth wheel, so I spent a lot of time researching as many of the aspects as I could. I knew I didn't want to mount bed rails, so the truck was outfitted with the factory in-bed mounts. That allowed the use of this hitch. Using this setup allows for a clear bed floor by merely unpinning and swiveling the four locks on the leg's ends, then lifting the whole mess up and away.
It arrived in two separate boxes: good thing, it's heavy! Knowing that, the individual pieces were placed in the bed where it could be assembled closer to its landing place. The instructions were very clear, and, before we knew it, we had the mount dropped into place.
Connecting to the trailer couldn't be easier. With the lever forward and the yellow dot showing through the status port in front, the truck slides back into place with a satisfying "chunk" as the hitch latches on. Drop the safety pin into the latch, make your connects, give one final tug with the tow vehicle so you know the hitch is properly latched, and off you go! Thanks, etrailer!
Shipping was fast for box 2/2. I believe I placed my order on June 30th and box 2/2 was delivered on July 2nd. Unfortunately box 2/2 was the only box that I had a tracking number for so I had to call etrailer. Even though this was an inconvenience the lady was super nice and helpful and ensured me box 1/2 would be at my home by the 6th of July and it was. The legs fit perfectly into the 2021 Ram puck system and was almost to easy to believe it was done correctly. The rest of the hitch bolted directly into place as described. I am more than happy with this product and for how easy it is to use it is definitely worth the price.
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