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The Curt A20 5th Wheel Hitch with S20 Slider is built from sturdy steel and rated for 20,000 lbs gross towing weight with a 5,000 lbs vertical load limit. It’s made for serious towing—heavy campers, toy haulers, and RVs that need a solid connection. The carbide powder coat finish holds up against wear and rust, while the interlocking jaw design and torsion head give you a ride that feels stable and secure mile after mile.
The interlocking two-piece jaw wraps completely around the king pin for 360-degree contact. That tight fit cuts down on rattle and movement so your trailer feels steady and quiet behind you. The color-coded three-point indicator system shows you at a glance whether you’re uncoupled (red), ready to couple (yellow), or locked in for towing (green). You can check it from the cab or from the side of the truck, giving instant confidence that everything’s connected the way it should be.

For slow-speed turns where clearance matters, the non-binding S20 slider gives you up to 12" of fore/aft travel. It automatically latches in both directions, so you can get the space you need between cab and trailer when maneuvering into campsites or parking lots. The quiet slider design keeps things stable while still letting the hitch move where it needs to during tight turns.
Installation is straightforward—just drop the base into your factory puck receivers and pin it into place using the included rail adapter. When it’s time to remove it, pull one pin and lift off the head for easier handling. Two built-in zerk fittings make lubrication simple, and the included plastic lube plate helps the king pin glide smoothly into position during hookup. With height adjustment from 17-1/2" to 21-1/2", you can dial in your setup for a level, secure tow every time.

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
What's up everybody It's AJ with etrailer.com. Today we're gonna checking out via Curt Adapter. Now it's for OEM puck systems in the bed. So it's gonna take the underbed puck system make it a overed puck system. That way you can attach your fifth wheel to this and use the one you have already. Let's check it out.
It's gonna be really good if you already have a fifth wheel that you used in roller truck, you wanna transfer it over to this system. It doesn't drop in the puck, or you just wanna upgrade to a different one that also works above bed. That's what this is gonna do. It's gonna convert the puck system to an above bed system and you just drop it in any of these tabs here right away. I wanna show you how easy it is to operate.
So I'm gonna pull the clip and the pen. This is a lever that's gonna turn this portion to let you lift it up and outta the pucks, and I gotta do it on all four sides, but it's really easy to do compared to some of the other adapters I've worked with. There was the Reese one that I've also used but it has the longer arms that pin here in the center and that can be kind of cumbersome to bring those all the way out here and out of the way to unlock it from the pucks. These are shorter handles, so you just push it out makes it far easier. It does clear everything right here.
You don't have to go for that long lever style. So now it's unlocked. I can just lift it up and out of the pucks. It's like our back one's stuck, so I gotta get that lever in the right spot, that easy to do. Now it's up and out of the pucks and we can take it out of the truck.
Installations just as easy. Make sure you got those levers in the correct spot. You see that this portion that goes down into the puck is lined up with it. You just lift it up. Drop it in. Now you might only get one or two of them in. Then you can come over here and adjust. Very easy to come down. I also like that there's plenty of room in between the bend and the bottom of the bar so you don't have to worry about smashing my hands when I'm dropping into place. Once it's lined up in place, you can pull the lever back over. It should go over there. That's gonna lock it in and then we'll put our pin and clip right there in the hole. The way it locks in those pucks is gonna help prevent chucking. I'm gonna try and shake it back and forth. You see it'll move a little bit, but not a whole lot. I'm really shaking the whole truck versus what's gonna move on the fifth wheel, the whole thing has a durable carbate black product oak finished. So if you leaving it in the back of the truck you don't have to worry about the elements bothering it at all. The tabs where you drop the fifth wheel legs in so this is gonna be what kind of fifth wheel spread will work with the adapter. It's gonna go from the furthest ones out. It's gonna be 29 inches center to center. The next one's in it's gonna be 21 inches center to center and then here's gonna be 10 inches center to center. So that should help you decide if your setup's gonna work with the adapter or not. Another thing to think about about is it is gonna add three inches to the bed so that means it's gonna bring your fifth wheel head up three more inches. Just keep that in mind when you're doing your setup. Overall, I really like this adapter. Like I said, it was easier to use than some of the other ones I have used. These quarter turn latches here and drop in the pucks. Make it really easy to get in into place or get it out of here when you want it out and it's gonna help convert that underbed system to an over bed system to using over bed fifth wheel. Well. I think that does it. Thanks for hanging out. I hope this helps..
Ratings & Reviews

Brooke M.
7/8/2025
Everything looks awesome, Dennis! Glad that Fred was able to help you out with this. :) I'll be sure he sees your review. Have you been able to go anywhere fun since installing?

Harvey
4/8/2026
This was a great purchase and it’s made backing into tight camping spots so much easier. 100 satisfied with this hitch and slider system!

Joe
11/6/2025
Still working great. At some point, Ill probably get a hitch that sits in the pucks, but for now Im satisfied.

Jean
7/25/2023
After 1 season the product still perform as new ,easy to removed from the bed if you need the full pick up boxe .quality is as expected it spend the winter installed and do received some snow ounce in a while but no sign of rust

Brooke M.
2/5/2025
Cammi is going to love to see this review, Scott. Thanks for taking the time to write it! Ill be sure she gets to see it, and Im so happy to hear installation went off without a hitch! ;) Please let either me of Cammi know if we can help you out with anything else!

Scott
2/2/2026
My hitch is working great still. Easy to use no issues.

John R.
11/15/2025
The hitch adapter has worked out well. It’s great that Curt gives you an option to buying a new fifth wheel hitch when buying a new vehicle. Only pulled it out once. It’s an extra step removing it but no big deal.

Gwendolyn Y.
4/17/2025
The New hitch looks great in your truck, Frank! Have you taken it out for a spin yet?




Mark
6/15/2024
Great

Matt
7/9/2026
One year and zero issues after many trips pulling our 43ft toy hauler.

Richard
10/30/2025
Just got back from trip that I pulled 5th wheel 7800 miles. No problem with adapter rails. Only problem is top of hitch is about top of bed. I can used my bed cover with hitch mounted it truck bed.
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Kate F.
4/16/2026
Glad we had the right adapter to get you on the road to adventure Quint! Where are you headed for the first trip?