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The built-in automatic slider moves as you turn, giving you 14" of extra clearance between your truck cab and trailer. The rack-and-pinion gears control this motion smoothly, so you can maneuver at slow speeds without getting out to pull a lever. Each time you straighten out, the head slides back toward the cab on its own. This setup makes backing into campsites or tight parking lots much easier and removes the guesswork from short-bed towing.
A single-piece wraparound jaw completely surrounds the king pin for 360-degree contact. That tight fit cuts down on rattle and trailer movement during travel. A solid 3/4" steel locking bar reinforces the jaw once it closes, adding another layer of security before you roll out. The spring-loaded handle with a tethered safety pin lets you secure it in either the open or closed position, so coupling and uncoupling are quick and predictable.
The double-pivot head moves both front to back and side to side to match the angle of your trailer’s pin box. Three polyurethane dampeners cushion those movements to absorb road shock and minimize chucking noise between truck and trailer. As soon as your king pin contacts the hitch, the head pivots automatically into the right position for hitching, helping you line up faster and get on your way.
This heavy-duty steel hitch is rated for 18,000 lbs gross towing weight and a 4,500 lbs vertical load limit. The rust-resistant black powder coat finish keeps it protected from the elements tow after tow. With height settings of 16-1/2", 17-3/4", and 19-1/4", you can fine-tune your trailer height for level towing and proper bed rail clearance under load.
It installs on standard above-bed base rails using included pins for a solid fit. The design also lets you bolt on side plates with multiple height positions to match your trailer’s pin box setup.
This fifth-wheel trailer hitch is not compatible with Sidewinder or Revolution king pins. Do not use any device that changes the pivot point of your trailer's king pin with this hitch.
Alternate Instructions
Ratings & Reviews
John
7/17/2023
Still working great!
Jimp
9/5/2019
Still loving it. My only complaint definitely a 1st world problem! is that the unit takes up a lot of space in our bed when were not using the trailer. I solved that issue with a cheap chain hoist, attached to a beam in my garage. Now when we return from a trip and know were not going to use the 5th Wheel for a while, I just hook up the hoist and pull it out. Simple solution to my only issue with the Demco Hijacker.
Glenn
7/11/2021
Works Flawlessly
Mark C.
1/20/2020
Its been a year and I would not hesitate to purchase again.
Mike L.
3/6/2019
The hitch is indeed heavy. If you have a chain hoist available, using a lifting bracket like part # DM6100 see link would certainly make installing and removing the hitch much easier.
Helpful Links
Heather A.
8/14/2018
This demco hitch part DM8550034 is a completely gear driven hitch. Whichever angle you uncouple at is the same position the head will stay in until it is coupled back up. It is a good idea to couple up at as straight of an angle as possible. If there is ever a situation where you have to uncouple at an angle you can physically turn the head back to a straight position by taking the head off the hitch and putting a straight bar through the assembly for some leverage. The head should not be swiveling during coupling unless the main bolt is loose. The bolt that holds the gear assembly together has to be torqued to the specific foot lbs in the installation instructions or the head may swivel and cause issues during coupling. That bolt is part 05366 in the instructions.
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Mike G.
9/15/2019
This hitch has worked well for me. It is now used in a 2018 GMC Sierra 2500. It is just tall enough that I can see it in my rearview mirror to make it easy to get lined up with the kingpin