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Say goodbye to lengthy and complicated hitch installations! The Curt Custom Fifth Wheel Installation Kit is designed to fit your vehicle perfectly with minimal drilling, drastically reducing your setup time compared to universal kits. The custom brackets mount directly to existing holes in your vehicle's frame, offering a clean and secure installation without the need for unnecessary modifications.
No more second-guessing compatibility with your existing setup! This kit's base rails fit seamlessly with industry-standard above-bed 5th-wheel trailer hitches including brands like B&W, Curt, Draw-Tite, Hidden Hitch, Husky, Reese, and Valley. Its versatility ensures that you can swap in your preferred hitch to suit your towing needs.
Elevate the look of your truck with the kit's high-durability carbide finish rails. Not only are the rails tough and built to withstand the rigors of towing, but they also match the Curt fifth wheel hitches for a cohesive look. It’s protection and style combined in one sleek package.
Dreading hours under your truck? With this custom-fit kit, you'll cut installation time in half compared to universal brackets. Designed with the user in mind, it cuts down complex steps, allowing even DIY enthusiasts to complete the job with ease and efficiency. Get back on the road faster with your fifth-wheel trailer.
Finding the right spot to attach your hitch assembly can be a challenge, but not with this system! The custom brackets cleverly utilize your truck's existing frame holes, ensuring natural alignment and a perfect fit every time without having to guess or make extra cuts.
Whether you like mixing brands or sticking to one, this kit offers flexibility and functionality compatible with major brands. Feel free to mix brands of hitches and the rails for the best experience that suits your tastes and needs, all thanks to this versatile and reliable kit.
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today on our 2016 Chevrolet Silverado 2500, we're going to take a look at, and also show you how to install, the Curt Custom Fifth Wheel Installation Kit with carbide finish. The part number is C16411-204. Now, this is what our custom side plates look like installed. You see these bolt directly to the frame using some M16 bolts that go right into weld nuts. That allows for excellent connection points between our frame and the end of our rails up here on each side without the need to drill out the frame or make any kind of modifications. As you can see, the carbide finish is going to give you a nice clean look. We got good sturdy rails and it's gonna offer the three different widths: the outer, middle, and inner widths that are very typical with most standard fifth wheel hitches.
This is going to work out well with, of course, the Curt. But also Reese, Valley and several other types of fifth wheels. So it will allow us to safely haul a fifth wheel trailer. Now, we put this one in a short box. Always a good idea for a slider or something that gives you extra room behind the cab.
In a long bed, you'll have to just do the measurements and see how it works out. There are also gooseneck plates that are designed to drop right into our pinned locations here. That'll give you a gooseneck ball in the middle that is kinda interchangeable with your fifth wheel. Now from the top of the beds corrugation to the top of the rails, we've got about a one inch difference there. Now the rails are a nice heavy duty steel material. They've got a solid black powder coat finish on them.
The hardware is gonna be corrosion resistant. So, this should look good in the back of our truck for quite a few years. Now, to begin our installation, we need to get our forward rail positioned in the truck bed. We've got a couple different measurements depending on the long box or short box situation. You need to measure from that rear edge to the back edge of our rail here. You'll notice this truck has a spray in bed liner.
You need to account for the thickness of that as well. Not only do we need to get this squared, front and back here, but this is also going to need to be squared up side to side. So you measure over from our wheel well. Once we have this in the appropriate position, we need to mark the center of each of our hole locations. We'll be using the middle one, here in the back side and then the two on each end. Now we can center punch those, just keep our drill bit from moving around. Now, we're gonna take just a 1/8th inch drill bit, a nice small drill bit, and drill out one of our holes. We'll makes sure that these are matching up with our side plates. Now, depending on your vehicle, you may or may not have these fender liners that are kinda inside of the rear wheel here. If you do have them, there's gonna be 14 little torque screws that kinda go around the edge here and also across the back side. You want to get all those taken out and then get that fender pulled down. This is what it's gonna look like. You'll need a T15 torx bit to get them out. Now we can grab our side plate, we'll need to mock it up. We want the larger bracket. The smaller one in the front here, the larger one in the back. We want that towards the back. And then they should loop in over our frame. Once we have that in position, you're gonna notice we've got one of these round holes well nuts that already exist in the frame, so we're just gonna use the provided hardware, put a flat washer and lock washer on it. Then we can thread that in. Put one there in the back and also one right up here in the front. Now it's time to verify that the hole we created in the back does line up with the rear hole in our bracket here. Once we've confirmed that our hole does line up with our side plate, we're gonna move up to the quarter inch drill bit. Drill out each of our holes and then use a step drill bit to bring it up to 9/16'ths of an inch. Now we're gonna clean up our mess here and we're gonna touch up each of the holes with a little bit of rust preventative spray paint just to prevent rusting and things like that. Then we'll position our rail back over top of the holes. Now we're gonna start getting our bolts in position. For the medal one here, since it's in the middle of the corrugation, the bolts just going to pass down through. For the outside hole, since it's in the lower portion, we need to put our U-shaped spacers underneath there. It's gonna prevent the rail from crushing the bed and then, just like we do with the center, our bolts will just slide in. Since our bolt was in the top of the corrugation on the top, we're gonna be putting another U-shaped spacer here on the bottom. We'll follow that up with our square-hole spacer. And then we can thread on our flange nut. We're gonna use this to just kinda anchor that rail down. Hand tight is really all we need to do. Then we need to add on a square-hole spacer and a flange nut to the other four bolts, the two we have on each side. We're gonna go through, we're gonna snug up that forward rail. Last up is gonna be getting everything torqued down. Now we just really want to hold it down into position. Now we're gonna grab the rails with whatever your fifth wheel arms or your leg inaudible 00:06:03 are gonna be. We're gonna position in the front rail and match that up to the rear rail. Now, once we have this in, we want to pull it as far forward as we can so we have good pressure there. And then we need to measure our wheels wells again, going side to side. And then we're gonna repeat the exact same process for the holes in this rail, although this time we need to use the holes that are the second set from the outside. Not all the way to the outside. We're going one set in from that. Now since these bolt holes all in the top side the U-shaped spacers we'll go on the bottom. We're going to take our spacers. Those are going to go between the brackets and the bottom of the bed. That gives us that gap that we need. Then, just like we did on the forward, we put on our square-holed spacer lock and one of our flange nuts. Now we'll go through and get each of our bolts torqued down to the specifications, which are listed in our instructions. We'll start with the 1/2 inch bolts then we can move to the M16's that went into the frame rails. With everything torqued down, if you had to remove them, we'll put the side skirts back down on the fenders here. Kind of push them up into position around then edge and start lining up the holes. We'll just go through and get all of our screws started here and then just snug them down. That's gonna complete our installation of the Curt Custom Fifth Wheel Installation Kit, part number C16411-204 on our 2016 Chevrolet Silverado 2500.
Installation went well. High qualirty fifth wheel hitch. Happy with etrailer from order through shipment, I will order again from this company, Thank you.
worked great, thought installation would be easier,but the holes in the factory frame were hard to get to and made it hard to get the washers and nuts on the bolts. Also had to use a wrench on all of them because of limited space.
Great solid product that bolted up to the frame without drilling. If you REALLY want to do it yourself, I suggest that you will need a helper (or 2) to successfully mount on a 2011 Silverado 2500. There is no way I could have done this by myself. This is one item you might be better off taking to a trailer shop.
I installed the fifth wheel kit, it was a great fit, but it is a tight fit, on getting the eight bolt nuts started. But all in all, I believe it's a great product.
The installation video is very helpful friendly service and fast shipping and very accurate fitment definitely recommend e trailer for any trailer needs and accessories
I feel that the installation video simplifies the process to much. Attaching the frame plates with the bolt fish wire was more difficult than the video showed. I am to blame for the first bolt. We started on the left side and fished the back bolt first. I did not check to see if the wire would go through both plate and bolt once threaded onto the bolt. I just placed the plate on the wire and then threaded the bolt onto the wire and pulled or tried to pull it through the frame hole. The wire was "bunched" on part of the bolt and would not feed through the frame and the plate holes. I stretched the wire to the point I thought I was going to lose the bolt in the frame. We ended up getting the bolt back out and using the other fish wire to feed this bolt through. We made sure we could fit both the plate and bolt through together before fishing it through the frame. Once we did one the other three went a lot easier but we only had one fish wire to use.
I had watched the installation video several times and played it while we were working. The video is good but it makes the process seem to easy.
I would like to see the video have more details about this process and have 4 fish wire instead of 2 or tell people you may want to have two more on hand for piece of mind.
Jeff L.
10/1/2018
After a year and around 7,000 miles pulling our fifth wheel camper, I love the hitch. I have not had to use the sliding portion but glad we have it if we need it
This product fit the truck greate the only thing is the flat washers were a little big but all I did I to make them fit flat washers were a I ground off the part the overleaped the other bolt.
The structure and how it fit in the truck bed was great.
Last summer I made purchase of the A16 sliding 5th wheel hitch along with rails.the install took about six hours working by myself .following the enclosed instructions is important and saves time if you do it exactly as shown.I was very pleased with the delivery,it was prompt and no charge.that was great.the hitch is a slider which I think is important on a shortbed,could save damage to truck during maneuvers.my experience with etrailer has been really good and would recommend this company to anybody shopping for trailering equipment
The installation kit fit perfect but take the time to move the spare tire and the heat shield out of the way to make it easier.
Kevin L.
10/23/2017
The products have worked flawlessly no problems and thank you for checking back with me its nice when a company cares about there costumers. Next time I need any trailer products I will definitely be contacting etrailer.
Excellent product, perfect fit for my vehicle, arrived a couple days before it was supposed to. I did not want an "aftermarket" look, which is why I ordered a kit designed specifically for my vehicle. I did take the time to remove the heat shield to gain better access to the installation bolts. The biggest challenge was installing and tightening the bolts that go through the bed; there is not a lot of room between the trucks frame and the bed of the truck. The most challenging bolts were the ones on the driver side closest to the cab of the truck due to the placement of the gas tank. Trailer wiring was plug-and-play, hardest part was drilling the 2" hole in the side of my truck bed.
Whew! Installing that Rail kit about kicked my butt! The reason why is all the trips I made from underneath the truck and back. The Rail kit is a very high Quality Product from Curt that fits perfectly in the bed of my truck. The hardware is also high quality. One downside is there isn't a lot of room to work as the gas tank on one side and the exhaust on the other side prevents easy access (gas tank in particular). It was very hard to get a wrench on the nuts unless you used a Gearwrench. After the install they are torqued to 110 ft-lb. The only way to do that was to put a 1 inch adapter on the torque wrench then put that in the open end of the gearwrench in the adapter. Then using a formula on line, convert that to what you have to ft-lb. Anyway It was worth it because I know I have a good product that will stand the test of time.
This is the second one of these that I ordered from e trailer. The first one I got at the same time as the fifth wheel hitch. I install on my 2015 Silverado 2500HD. I traded that Silverado for a 2018 Silverado 3500 Z71. Kept the hitch had to leave the rails. Great product and not bad to install. Took about 2 hours. If I trade again, I will get third.
Real nice kit. Super easy installation. Heavy duty. Definitely recommend
Good quality, easy to install, but hard to reach some of the bolts between bed and frame.
Box was delivered with a little damage and the contents of the hardware bag was loose in the box. After going through the parts list and realizing I was missing 1 block, we contacted etrailer and they shipped the replacement part immediately, we got it within 3 or 4 days. Install was a breeze after watching the video and fishing the bolts and blocks in the frame. Only took a couple hours total.
Just installed my curt 5th wheel kit,all materials are heavy duty and comes with all hardware needed. Installation is straightforward for the average DIY . The only challenge in the installation of the kit is getting the right tool to torque the rail bolts. My truck is a 2013 chevy Silverado 2500HD. I would recommend this kit.
If you do this yourself, definitely remove the wheel well liners and remove 3 of the 4 bolts holding the heat shield with one loosened to move it out of the way. Top front four nuts are the hardest to get started from under the truck. Start to finish 3 hours. Saved myself $500 for install
Heavy steel construction. Went on without an issue. Everything fit like a glove. I would suggest the 10-bolt pattern as I did for extra strength and security.
Ron C.
5/15/2018
Great, solid as they come.
This bracket and rail kit was the perfect fit for my 2011 Silverado. Made the install of my hitch a breeze and allowed me to be on the road with my new trailer in no time.
I would like to say a big Thank You to Paula and entire Etrailer team. Their customer service is grade A+ they did everything in there power to deliver the parts I needed last minute and everything showed up faster then expected. Quality service is hard to find and for that I will always shop Etrailer. Thanks again!!
Aaron
7/1/2024
After using my equipment for a year, I honestly have nothing bad to say. The product holds up in the elements and great quality. Thanks again!!
I had originally ordered a 11604/11607 under bed gooseneck mount for my 2019 Silverado 2500HD, but found out during initial parts fitting that an under bed rib had been welded out of position on my truck, and the side rail brackets would not fit because of it. A phone call to Curt verified my finding and they suggested going to an in bed rail mount as an alternative. I called etrailer and spoke with Bailey B about my situation and she was very quick to understand what I needed to do. She helped me place an order for a 16411/16204 in bed rail mount kit. She then emailed me instructions and UPS shipping labels so I could return the parts I could not use. I received my new kit yesterday (one day early!!) and a quick look tells me I now have what I need. Bailey B was super helpful, and the exchange process was above and beyond my expectations. Count on me for future purchases. I had hand surgery a few days ago so it will be a while before I can install this hitch rail kit. If I can edit this review then, I'll add pictures. In the meantime, I'm going to have a spray in bed liner done and I'll be ready to go. Thanks again Bailey and etrailer!
David
3/10/2024
Fantastic! I was able to install the entire kit by myself as soon as my hand allowed me to. Everything went together as it was supposed to. Ive only been able to tow my 5er a few times, but getting hitched up and unhitched is a breeze, even when the truck isnt straight on to the trailer. The hitch is totally silent, with no chucking at all. I was able to set it up so I had good cab clearance that I dont need to use the Turning Point feature on my pin box. I highly recommend this hitch.
Works great, I self performed the install on my 2018 GMC, the only issue I struggled with was on feeding the bolts through the frame with the provided threaded feeder wire on the front driverside, the trucks fuel tank location and brake lines mounted on the frame was a little challenging but worked through it. Thanks
I received the 2500HD custom fit rail kit and A16 slider hitch very quickly which was great because we were on a time crunch to pick up our new camper. I selected this hitch and rail combination after reading all of the positive reviews. A buddy and I installed it ourselves in a few hours and could not be more happy with the fitment. We used the installation video below the product description which really helped. Etrailer was great to work with and I would definitely order from them again. We will be picking up our fifth wheel this weekend and will comment on how well it performs!
Great product.. better than my previous install on a 2006 Silverado w/separate brackets for each bolt for the Rails.
This went in like a dream.. however, with that said... watching the video from etrailer on YT showing how to install this was extremely helpful... the "real life" install is no where near as easy as they show.
The fuel tank and the bottom of the bed allow for about 5" of room to get you hand, arm and the bolts installed on the bottom of the bolts that come down from the rails. Very difficult. The passenger side also has the exhaust and a shield to contend with. Removal of the shield is a must, however the tight area between the frame rail and the underside of the bed... again, only allows for minimal accessability for the bolts.
The only bolts that were able to be torqued were the bolts on the outside of the frame rails, otherwise all other bolts were only able to be torqued to grunt specs.
Took about 3hrs, however it is way easier drilling only the 8 holes through the bed floor than into the frame...
I would suggest re-tapping the threaded studs that are on the frame. I installed this on a 3 yrs old 2017, and I had a tap to do this. W/O the tap I think the bolts would not have gone in so easy AND they most likely would have been damaged from the rust and stuff laying in the holes.
Jerome C.
3/17/2021
Just a year now, and this hitch is still performing great. I really like the colored indicator in the front. I thought this would be a joke at first, but hey.. it really works. I find myself looking at the connection dot right before I put the truck in drive. If anything, its another way to double check Im hooked up correctly. Really like this 5th wheel hitch
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Christopher
11/3/2025
Excellent bolt right up to factory holes on the frame and the instructional video is awesome highly recommend