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  1. 5th Wheel Hitch
  2. Demco
  3. 21000 lbs GTW
  4. Aftermarket Below Bed Rails
  5. Sliding Fifth Wheel
  6. Premium - Single-Hook Jaw
THIS ITEM IS NOT A FIT FOR
2016 Keystone Hideout Travel Trailer
Demco

Demco Recon Sliding 5th Wheel Hitch for Ford Super Duty - Single Jaw - Underbed - 21,000 lbs

Part Number: DM79KV
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$1,942.03
5th Wheel Hitch
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2016 Keystone Hideout Travel Trailer

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This hitch manually slides to give you 14" of clearance for tight turns. Sturdy wraparound jaw has a locking bar for added security. Pivoting head allows easy hook up and helps limit chucking. Polyurethane bumpers ensure a smooth ride. 1-800-940-8924 to order Demco 5th wheel hitch part number DM79KV or order online at etrailer.com. Free expert support on all Demco products. Great prices and Fastest Shipping for Demco Recon Sliding 5th Wheel Hitch for Ford Super Duty - Single Jaw - Underbed - 21,000 lbs. 5th Wheel Hitch reviews from real customers.
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  • Reviews (99)
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  • Videos (4)
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Demco 5th Wheel Hitch - DM79KV

  • 21000 lbs GTW
  • Aftermarket Below Bed Rails
  • Demco
  • Sliding Fifth Wheel
  • Premium - Single-Hook Jaw
  • 18-3/8 - 20-7/8 Tall
  • Double Pivot
  • 5250 lbs Vertical Load
  • 14 Inch Fore/Aft Travel

This hitch manually slides to give you 14" of clearance for tight turns. Sturdy wraparound jaw has a locking bar for added security. Pivoting head allows easy hook up and helps limit chucking. Polyurethane bumpers ensure a smooth ride.


Features:

  • 5th-Wheel hitch mounts in your short-bed truck so you can tow your 5th-wheel trailer
  • Manual slider provides clearance required for your short-bed pickup to turn safely at slow speeds
  • Wraparound, single-piece jaw provides a secure connection
    • 360-Degree jaw-to-king-pin contact
    • Less rattle and more security than slide-bar jaws
  • 3/4" Thick, solid steel locking bar reinforces the connection of your coupled trailer
    • Automatically locks into place when the jaw closes
  • Double-pivot hitch head eases hookup and helps to limit chucking
    • Pivots front to back and side to side
  • Slider provides clearance required for short-bed pickups to turn safely at slow speeds
    • Prevents trailer from hitting the cab of your pickup during sharp, slow-speed turns
    • Designed for use on trucks with beds shorter than 8'
      • Not recommended for use on truck beds shorter than 6'
  • 3 Height settings to fit your application
  • Cushioning polyurethane dampeners help reduce noise and absorb road shock
  • Spring-loaded handle with comfort grip allows for simple coupling
    • Tethered safety pin lets you secure the handle in the open or the closed position
  • Sturdy steel construction with rust-resistant black powder coat finish
  • Simple installation with included underbed mounting kit
  • Made in the USA


Specs:

  • Application: designed for use on 6-1/2' truck beds
  • Fits standard pin boxes 12" - 14" wide
  • Gross towing weight: 21,000 lbs
  • Vertical load limit: 5,250 lbs
  • Travel: 14" front to back
  • Hitch height settings: 18-3/8", 19-5/8", and 20-7/8"
  • 5-Year limited warranty


8550064 Demco Recon Manual Slide 5th-Wheel Trailer Hitch - 21,000 lbs

6436 Demco UMS Under Bed Mount Adapter Plates for Recon Manual Slide 5th Wheel Trailer Hitch

8551000 Demco Hijacker UMS Under Bed Rail Frame Bracket Kit

Installation Details DM79KV Installation instructions


California residents: click here


Video of Demco Recon Sliding 5th Wheel Hitch for Ford Super Duty - Single Jaw - Underbed - 21,000 lbs

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Demco Hijacker Underbed Rail Kit Installation - 2015 Ford F-350

Male 1: Today on this 2015 Ford F-350, we'll be having a look at and showing you how to install the Demco under bed rail and installation kit for Demco Hijacker fifth wheel and gooseneck trailer hitches, part number DM8551000. Here's what a Demco under bed system looks like installed. These under bed rails allow us to have all of the mounting solutions for our fifth wheel and gooseneck trailers underneath the bed of our truck. This will allow us to maintain full access to our truck bed and not lose any of the valuable space in it. One of the great features about the Demco under bed system is how easy it is to remove our fifth wheel to gain full truck bed access. So I'll show you how to do that now.We'll pull our clips, pull our pins out, move our handles to the unlocked position.

We'll do this on both sides. Now with an extra set of hands we can grab the slider, pull it out. Now, you'll see once our fifth wheels out of our truck bed, we have complete access to our entire bed of our truck. There is nothing that sticks up above it at all since it's all underneath. It does come with these plugs that you can install in the holes that you drilled in your bed to help keep dirt and debris out of the rails.These under bed rails will allow you to tow a fifth wheel trailer or a gooseneck trailer with the right adapter.

Comparing these two other fifth wheel or gooseneck options, what's really nice about this is being completely under the bed yet there's nothing that sticks up. It does provide a very clean look in your truck when you aren't towing your trailer, and you want to have full bed access. Now that we've gone over some features, we'll show you how to get them installed.To begin our install, we've measured according to the instructions to find the four locations that we need to drill our pilot holes in our bed. When taking these measurements, it's critical that we take the initial measurement from the end of the bed and not the end of our tailgate. If you have a plastic drop-in bed liner, you want to make sure you move it before you make your initial pilot holes.

You can always reinstall it before you put the rails back in and drill up from underneath the bed to enlarge the plastic bed liner if you want to. So we'll have a pilot hole near where the factory dimple is for the factory under bed puck system. So make sure we don't drill into that temple, but we drill where you measured.Now, with our pilot holes made at all four corners, we can now enlarge it to the appropriate size using a hole saw. We'll continue doing the same process for all four holes. Now to help prevent rust on our truck, we're going to take some clear coat and go along the inside edge.

If you have a spray in bed liner, you can just use flat black spray paint as well because that will match your bed liner.Now, we find ourselves in our wheel well. We need to insert our rail over the frame underneath the bed. We'll start with our rear rail first. Make sure the holes are facing up. We'll slide this in position right here. We go all the way across, and then we'll start to slide it back. We'll slide this back over the rear set of holes. We have lined up pretty good on the driver's side, but we need to get it further back on the passenger side. So we may need to use a hammer to tap it into place.Now, we can do our front rail. We'll insert it in the same manner. Now, we'll slide it back and show what's underneath or holes. We've already went ahead and took our fifth wheel or slider, we're using a slider in this case, dropped it in place into our bed, down in our rails, and secured to our rails. We have insured where the legs of our slider go through the bed of the truck into rails that all four are centered into our hole in the bed of our truck.Now, we'll bolt our frame brackets to our rails. To do that, we'll use a half inch bolt with lock washer and a flat Washer. Now for the back hole on our frame bracket on the driver's side, we'll insert a half-inch diameter bolt through that hole into the frame. It will be capped on the inside of the frame with a flat washer and a lock nut. Both the front and the rear hole on the passenger side bracket are the exact same way as this. For our center hole here, we'll take a three-quarter inch diameter bolt, we'll go through that and into the frame. On the inside, we'll cap it with a nut. Now, we'll take our pull wire, we'll go through our forward attachment hole. It'll come about our frame, and we can just pull it around back towards us like this. And we'll thread on our knurled bolt, and we can pull that through the frame. We'll move the pull wire, and we're thread on our flange nut.Now, we can go repeat the same process for the passenger side. The only difference being we won't have a knurled bolt on the front on the passenger side. We'll have a standard bolt like this with a washer on the inside and the nylon lock nut.Now we can start to tighten down our hardware that secures our frame bracket to the frame. Now, we'll do the other ones. Now that we have our frame brackets tightened to the frame on the truck, we'll now tighten the rails to our frame bracket. Now, we'll torque all of our hardware to the amount specified in the instructions.And that completes our look at and showing you how to install the Demco under bed rail and installation kit for Demco Hijacker fifth wheel and gooseneck trailer hitches, part number DM8551000 on this 2015 Ford F-350.

Ratings & Reviews

4.7

99 reviews
This hitch manually slides to give you 14" of clearance for tight turns. Sturdy wraparound jaw has a locking bar for added security. Pivoting head allows easy hook up and helps limit chucking. Polyurethane bumpers ensure a smooth ride.

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See what our Experts say about this Demco 5th Wheel Hitch

  • Below Bed Base Rails for 2002 Ford F-250 and Demco Hijacker Autoslide 5th Wheel Trailer Hitch
    You can absolutely use the 18,000 lb Demco Hijacker Autoslide with the underbed rails on your 2002 Ford F-250 crew cab. What you need are the following: - Underbed Rail and Installation Kit for Demco Hijacker # DM8551000 - Demco Hijacker Autoslide 5th Wheel Trailer Hitch with Slider - 18,000 lbs # DM8550022 As you mentioned, this is also compatible with the 21,000 lb version of the Hijacker # DM8550037. Additionally, if your '02 F-250 has the factory 7-way but you need a 5th wheel wiring...
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  • What 5TH Wheel Hitch Attaches To 5TH Wheel Rails That Don't Have Slots Like Industry Standard Rails?
    Currently the only hitch I know of that uses rails different than the ISR Industry Standard Rails is the Demco Hijacker # DM8550032. This uses a different type of Underbed Rail and Installation Kit # DM8551000 that only has 4 holes that the hitch will drop into and lock onto. While it is possible to have another type of system that may have been discontinued you can send me pictures and measurements of what you do have and I can use that information to determine if there is anything else...
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  • Demco Autoslide 5th Wheel Trailer Hitch For A 2002 Ford F250 Short Bed
    Hi John! The Demco Autoslide 5th Wheel Trailer Hitches - 18K # DM6077 can be used in your 2002 Ford F250 short bed, but not as it it currently stands. It is technically a replacement part as it needs a way to be attached. I have two options for that listed below: Standard Above Bed Rails: Side Plates for Demco Autoslide 5th Wheel Trailer Hitches - Above Bed Mount # DM6003 Demco Underbed Rails ( # DM8551000): Side Plates for Demco Autoslide 5th Wheel Trailer Hitches - Underbed Mount #...
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  • Estimated Installation Time For Demco Fifth Wheel Hitch And Installation Rail Kit
    Hey Clint, you are going to be installing the rail kit on the truck as well, correct? The Demco Recon 5th Wheel Trailer Hitch # DM47YV by itself should take only about 30 mins to assemble and install. The Installation Rail Kit # DM8551000 will also need to be installed on the truck. For the Installation Rail Kit, we estimate about 4.5 hours for installation. So, for the hitch and rail kit you would be looking at around 5 hours. You will find our install video linked below.
    view full answer...
  • 5TH Wheel Hitch Adapter for 2009 Ford f-350 OEM to Industry Standard Rails
    I believe the factory Ford 5th Wheel Prep didn't enter the market until 2011. So I wonder if someone installed the same OEM style system or did a different underbed mounting system. If you are not 100% sure check the measurements. For the Ford OEM Mount, Demco 5th Wheel Rail Adapter for Ford OEM 5th Wheel Towing # DM6175. This converts the OEM mount to the Industry Standard above bed rails. These holes will be 13" center front to back and 30" on center side to side. There will also be...
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  • 5TH Wheel Rail Kits and Hitches For a 2016 Ford F-350 Without Factory Prep/Puck System
    You will have several options for mounting a 5th wheel hitch in your 2016 Ford F-350. First is the Curt Custom 5th Wheel Installation Kit for Ford # C16424-204. This system gives you rails that will mount inside your bed and accept either a Sliding Hitch # C16541 for a short bed or Fixed Hitch # C16130 for a long bed. This system does mean that you will have the rails that are always in your bed which can be a hassle if you do slide things in and out of you bed a lot. Next is the B&W...
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  • Can Demco Autoslide 5th Wheel Hitch Fit 2011 F-250 With B&W Turnoverball Gooseneck Hitch
    I have two options for you, but you won't be able to use your Demco Autoslide with the B&W Underbed Installation Kit. You can't mount additional rails with the B&W hitch installed, and you can't use an adapter since it is unable to withstand the torque from the autoslide. The first option is to sell the Demco and get a B&W Companion # BWRVK3400-5W. The other option is to remove the B&W underbed hitch and install new rails to work with your Demco. You can choose above or below bed rails...
    view full answer...
  • Can I Hitch Up My 5th Wheel Trailer at a 90 Degree Angle?
    I would not recommend hooking up at a 90 degree angle for a couple of reasons. The trailer is not designed to take the force of the truck contacting the pin box at that angle. It would be very dangerous and unstable and could topple the trailer over if something were to hit it too hard. The front of the pin box has a curved lip to let the pin box ride up the hitch head. The side of the pin does not have that lip so everything would have to be extremely precise to make sure the flat...
    view full answer...
  • Underbed Fifth Wheel Rail Kit and Hitch Recommendation for 2016 Ford F-350 Short Bed
    For the Reese fifth wheel rail kit designed to fit under the bed of your 2016 Ford F-350 short bed we have the part # RP30126 which is a confirmed fit. Since you have a short bed you would need the slider hitch part # RP30144 to give you the needed turning clearance. For a different brand that also fits under the truck bed we have the Demco hitch and rail kits. What I really like about this option is that it gives you a slider hitch that automatically slides as you make tight turns. So...
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  • Under Bed 5th Wheel Installation Kit for 2008 Ford F-250 Short Bed with Air Bag Helper Springs
    Because of where the air bag brackets mount on the frame of your 2008 Ford F-250 the only 5th wheel installation kit that would work is the universal kit # RP30035. This is an above the bed kit though. None of the under bed mounts will work because of the air bag brackets. If an under bed kit is a must then you can install a different air bag system, # F2550. Then you can use Demco under bed installation kit # DM8551000. This installation kit is compatible with Demco 5th wheel hitch #...
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  • 5th Wheel Trailer Hitch and Install Kit Recommendations for a 2015 Ford F-250 Short Bed
    Since your 2015 Ford F-250 has the short bed I strongly recommend using a 5th wheel installation kit and hitch and not using an adapter in a gooseneck hitch. The reason is that will the short bed truck you will want as much clearance as you can get when turning so that the trailer and truck do not collide. Adapters do not offer much additional clearance. Since you like the clean look of the gooseneck I have an excellent solution for you. I recommend the B&W system using installation kit...
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  • Is a Sliding 5th Wheel Hitch Needed to Tow with a 2007 Ford F-350 Diesel with Short Bed
    Although some people can make it work, for any pickup with a bed less than 8' we always recommend going with a sliding 5th wheel hitch. This allows you to safely make sharp turns without your 2004 Forest River Cedar Creek making contact with the cab of your 2007 Ford F-350. You actually don't need a capture plate unless your pin box has a rotating turret, like a Sidewinder, or you have an automatic sliding 5th wheel hitch. If you have a normal pin box then no special capture plate is required. If...
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  • Auto-Slide Fifth Wheel Hitch Recommendation for 2002 Ford F250 Short Bed
    Yes, that does provide enough information. From a quick online search, it shows that your 2008 Keystone Cougar 276RLS is well under 18K, for this, I recommend the Demco Hijacker Autoslide 5th Wheel Trailer Hitch. You have two options, my recommendation, is to install with the below bed rails, using hitch # DM8550022 and rail installation kit, # DM8551000. The benefit of the below bed kit is a rail-free design that allows for full access to truck bed when hitch is removed. Or the second...
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  • Automatic Sliding Fifth Wheel Hitch Recommendation for 2016 Ford F-250 6-3/4 foot Bed
    For a 6-3/4 foot bed you would want to use a slider hitch still. Basically anything shorter than 8 feet is going to require a slider hitch unless the nose of the trailer was specially designed for turning clearance with a short bed truck. I have a great slider hitch solution that I can provide though. The Demco Hijacker AutoSlide part # DM8550022 will automatically slide back and give you turning clearance while making sharp turns. This way you will avoid the hassle of having to get out...
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  • Installation of Locking Plate for AirRide Pin Box with Demco 5th Wheel AutoSlide Hitch
    The instructions state that with the use of the Demco Adapter Plate # DM6095 the locking plates on hitch head are not needed when using this kit. They can be extended all the way out or removed. Per Demco the # DM6095 is only compatible with the Trailair Tri-Glide Pin Boxes. I really like the Demco Hijacker's AutoSlide technology because you never have to get in or out of your bed to adjust the hitch from towing to turning, it just automatically takes care of it for you. The Demco AutoSlide...
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  • How Much Does the 18K Demco Hijacker Autosliding 5th Wheel Hitch # DM8550022 Weigh
    If your 2013 Ford F-250/F-350 has the 6-3/4 bed you can use the Underbed Rail and Installation Kit # DM8551000 so that you can use the 18K Demco Hijacker Autosliding 5th Wheel Hitch # DM8550022 that you referenced. The Demco Hijacker # DM8550022 weighs about 280 lbs. The head can be removed (which weighs about 62 lbs) to help make lifting the hitch a little easier though. If you have a standard Lippert 1621 pin box then no plate is needed for hooking up your trailer. The capture brackets...
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  • Recommended 5th Wheel Hitch and Rear Suspension Enhancements for a 1999 Ford F-350
    For a 5th wheel hitch compatible with your 1999 Ford F-350 I recommend going with the Demco Hijacker UMS Double Pivot 5th Wheel Trailer Hitch part # DM8550032 in addition to the Underbed Rail and Installation Kit for Demco Hijacker UMS 5th Wheel and Gooseneck Trailer Hitches part # DM8551000. The Demco Hijacker is an excellent 5th wheel hitch rated for weight capacities up to 21,000 lbs. The rail free designed allows for full access to truck bed when the hitch is removed. The wraparound...
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  • Recommended 5th Wheel Hitch For a 2015 Ford F-350 With Short Bed
    First this will depend on if your 2015 Ford F-350 short bed came with the factory hitch prep/puck system from Ford. If you have the factory mounting points in your bed I recommend the Demco Autoslide 5th Wheel Hitch # DM8550038 as it will drop into the factory mounting holes. If you do not have the factory in bed hitch mounts then you can use the similar Demco Hitch # DM8550037 with the Underbed Mounts # DM8551000. This ensures you will not have any rails in your bed when not towing so...
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  • 5th Wheel Trailer Hitch and Install Kit for a 2008 Ford F-350 Short Bed and 2010 Keystone Cougar
    Since your 2008 Ford F-350 is a short bed I recommend going with a slider hitch so you will have more clearance between trailer and truck cab when making tight turns. The slider hitches that offer the most travel are the Demco HiJacker auto-sliders, # DM8550022 for below the bed rail kit # DM8551000, or # DM8550034 for above the bed rail kit # DM8552002-71. These hitches also have the benefit of sliding automatically. This means you won't have to get in an out of the truck repeatedly...
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  • Base Rails for 2003 Ford F-350 Super Duty and Old Hijacker FHW 24 5th Wheel Hitch
    We definitely have the rails you need to mount your Demco Hijacker FHW 24 in the bed of your 2003 Ford F-350 Super Duty, but I'm unsure of the base style you have, so you'll need to compare your base and choose from the following: - Above-Bed Base Rails # DM8552006-71 - Underbed Rails # DM8551000 - SL Series Rails, Parts # DM6012 and # DM8553003 If you aren't sure which is the correct rails please just shoot me a photo of the base connection and I'll be happy to clarify which one you...
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  • Solution for Towing Both Gooseneck and 5th Wheel Trailers Using Hitch With Under Bed Mounting Rails
    In order to easily tow both 5th wheel and gooseneck trailers and to leave the bed free when the hitches are removed, you'll want to use a Demco Hijacker Autoslide that uses their UMS under bed rails. For a 21K capacity Hijacker Autoslide hitch, you'll want so use part # DM8550037 with the # DM8551000 rail kit. Once the 5th wheel hitch is removed, you would use the # DM5988 gooseneck hitch which is compatible with the UMS rails. This option provides a lot of convenience, as the hitch...
    view full answer...
  • Recommended Fifth Wheel Sliding Hitch for 2013 Ford Super Duty Short Bed Truck
    For your 2013 Ford Super Duty Crew Cab, they only have the 6-3/4 foot or the 8 foot bed. For any short bed trucks, I recommend a sliding hitch to protect your Crew Cab and your trailer from impact when turning. I've seen far too many photos or people on the road with a dented cab or broken window to suggest a fixed hitch option for you unless you are using a Sidewinder style pin box. For your truck, I recommend the underbed rail kit # DM8551000 along with the Demco Hijacker Autoslide...
    view full answer...
  • Will The Demco Underbed Rail Kit Come With All Necessary Hardware
    Yes, the Underbed Rail and Installation Kit # DM8551000 will come with all necessary hardware for installation in your 2016 Ford F-350. This kit will give you great underbed attachment point for the Demco Autoslide 5th Wheel Trailer Hitch w/ Slider # DM8550022 that you were looking at. I've attached a short video below where Brent will walk you through the installation process.
    view full answer...
  • Recommended Automatic Sliding Fifth Wheel Trailer Hitch on 2016 Ford F-250 Short Bed
    For an automatic sliding fifth wheel hitch I recommend the Demco Hijacker Autoslide # DM8550035 with the custom install kit # DM8552000-71. Or if you prefer a below bed option, # DM8550037 with custom install kit # DM8551000. They're both designed specifically to work on short bed trucks and are confirmed to fit your 2016 Ford F-250 Super Duty with the 6-3/4 foot bed and no factory rail kit. They provide 14 inches of movement to help with turning clearance and the gross trailer weight...
    view full answer...
  • How Much Does The Demco Recon 5th Wheel Trailer Hitch w/ Slider DM47YV Weigh?
    Hello Doug. The Demco Recon 5th Wheel Trailer Hitch w/ Slider # DM47YV weighs about 220 lbs. The slider base weighs 165 lbs and the head unit is about 55 lbs.
    view full answer...
  • Estimated Installation Time For Demco Fifth Wheel Hitch And Installation Rail Kit
    Hey Clint, you are going to be installing the rail kit on the truck as well, correct? The Demco Recon 5th Wheel Trailer Hitch # DM47YV by itself should take only about 30 mins to assemble and install. The Installation Rail Kit # DM8551000 will also need to be installed on the truck. For the Installation Rail Kit, we estimate about 4.5 hours for installation. So, for the hitch and rail kit you would be looking at around 5 hours. You will find our install video linked below.
    view full answer...

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Info for this part was:

Employee Lindsey S
Updated by:
Lindsey S
Employee Wilson B
Updated by:
Wilson B
Employee Michael B
Updated by:
Michael B
Employee Dustin K
Video Edited:
Dustin K

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