1. Fifth Wheel
  2. Demco
  3. 21000 lbs GTW
  4. Sliding Fifth Wheel
  5. Hitch Only
  6. Premium - Single-Hook Jaw
Demco Hijacker Autoslide 5th Wheel Trailer Hitch w/ Slider - Single Jaw - Above Bed - 21,000 lbs

Demco Hijacker Autoslide 5th Wheel Trailer Hitch w/ Slider - Single Jaw - Above Bed - 21,000 lbs

Item # DM8550035
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DM8550035 - Hitch Only Demco Sliding Fifth Wheel
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This hitch slides automatically as you drive to give you 14" of additional clearance for tight turns. A wraparound jaw provides a smooth ride and a locking bar offers added security. Pivoting head allows easy hook up and helps to limit chucking. Call 800-298-8924 to order Demco fifth wheel part number DM8550035 or order online at etrailer.com. Free expert support on all Demco products. Guaranteed Lowest Price and Fastest Shipping for Demco Hijacker Autoslide 5th Wheel Trailer Hitch w/ Slider - Single Jaw - Above Bed - 21,000 lbs. Fifth Wheel reviews from real customers.
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Demco Fifth Wheel - DM8550035

  • Demco
  • 21000 lbs GTW
  • Sliding Fifth Wheel
  • Hitch Only
  • Premium - Single-Hook Jaw
  • 15-1/4 - 18 Inch Tall
  • Double Pivot
  • 5250 lbs TW
  • 14 Inch Fore/Aft Travel

This hitch slides automatically as you drive to give you 14" of additional clearance for tight turns. A wraparound jaw provides a smooth ride and a locking bar offers added security. Pivoting head allows easy hook up and helps to limit chucking.


  • 5th-Wheel hitch mounts in your short-bed truck bed so you can tow your 5th-wheel trailer
  • Automatic slider provides clearance required for your short-bed pickup to turn safely at slow speeds
    • No more getting into and out of the truck to operate a manual slider
    • Head slides toward the tailgate when you turn and back toward the cab when you straighten out
    • Rack-and-pinion gears create smooth, controlled, automatic motion
  • Rotating hitch head turns up to 90 degrees with your trailer
    • Rotation creates the force that propels the automatic slider
    • Built-in brackets stabilize your pin box so the king pin won't rotate in the hitch - no need for a separate capture plate for standard pin boxes
  • 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
  • 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
    • Diamond-plate tread on hitch base adds unique styling
  • Simple installation with base rails and installation kit (sold separately)
    • Compatible with B&W, Curt, Demco, Draw-Tite, Hidden Hitch, Husky, Reese, and Valley above-bed base rails
    • Cannot be used with rails that are a part of a gooseneck adapter plate - base rails must be securely bolted to your truck
  • Made in the USA


  • Designed for use on 6-1/2' truck beds
  • Fits standard pin boxes 12" - 14" wide
    • Locking plates (sold separately) are required for use with Glide Ride, Mor Ryde, Trailair Tri Glide, Trailair Flexair, Rota Flex, and 5th Airborne pin boxes
  • Gross towing weight: 21,000 lbs
  • Vertical load limit: 5,250 lbs
  • Travel: 14" front to back
  • Hitch height settings: 15-1/4", 16-1/2", and 18"
  • 5-Year limited warranty

Note: 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.

Automatic Slider Makes Cornering Easy

Most often used on trucks with 6-1/2' beds, a 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.

Normally, you'd have to get out of your truck and pull a lever to release the slider before every turn, but what if there was an automatic system? Imagine having 14" of extra clearance while towing your fifth-wheel trailer. Now imagine having this without needing get out of the truck to move your slider. The Demco Hijacker Autoslide makes this fantasy a reality. The Autoslide automatically glides back smoothly when you make a sharp turn so you can maneuver effortlessly around tight corners within campsites and parking lots.

Demco Hijacker Autoslide

The base of the Autoslide has a built-in rack-and-pinion gear system that operates automatically. As your truck turns, the pinion in the base also turns. This activates the rack gear, which causes the rotational force of the truck to be converted into the linear sliding action of the hitch. So, when your truck makes a sharp, slow-speed turn, the gears inside the Autoslide force the hitch head to slide down toward your truck's tailgate in a smooth, controlled motion. This way, any time that your truck turns more than 10 to 15 degrees, the Autoslide will ensure that there is enough clearance for your trailer to complete the turn as well, and it will do so without any jerking or binding.

In order for the rack-and-pinion assembly to function as designed, the pin box must be stabilized on the hitch head. Normally in a fifth-wheel hitch, the king pin moves inside of the hitch head so that the trailer can turn. With the Autoslide, the king pin remains fixed inside of the jaws of the hitch and it is the hitch head itself that turns. This is thanks to the capture brackets on the sides of the head that brace the pin box from both sides to hold it in place on top of the hitch head. This is done to ensure that there is enough resistance within the hitch when your truck turns to properly activate the rack-and-pinion gear mechanism.

Demco Hijacker Autoslide capture bracket

To stabilize your pin box on the hitch head, simply push the capture brackets up against your pin box once the trailer is coupled and tighten the outer bolts and the inner jam nuts. The Autoslide head and brackets will fit standard pin boxes that are between 12" and 14" wide. If you have a Glide Ride, Mor Ryde, Trailair Tri Glide, or 5th Airborne pin box, you must install a special locking plate (sold separately) as well.

When you straighten your rig out again and your trailer moves back in line, the hitch head will rotate back to center and slide back toward the cab into the straight towing position.

Secure Wraparound Jaw with Locking Bar

Demco Hijacker Autoslide wraparound jaw and locking bar

The single-piece, strong wraparound jaw completely surrounds your trailer's king pin for 360 degrees of contact. This wraparound jaw provides a more secure connection than standard 2-piece jaws that close in on the king pin from the sides. The increased jaw-to-king-pin contact on the Autoslide offers tighter tolerances around the king pin, which minimizes both rattle and chucking, for a smooth, quiet ride.

A 3/4" solid steel locking bar spans the area in front of the jaw. This bar provides an added barrier of protection against accidental disconnection so you can have peace of mind that your trailer is secure. The locking bar is attached to the jaw and to the spring-loaded handle. The bar automatically locks when the jaw closes around your king pin.

Double-Pivot, Cushioned Hitch Head

The double pivoting, cushioned head improves your towing experience dramatically by helping to reduce jarring and unwanted noise. Built-in pins allow the hitch head to pivot back and forth and side to side. And hooking up is easy because the hitch head will automatically pivot to the proper angle when it comes into contact with your pin box.

Three polyurethane dampeners help to cushion the movement from the pivoting head and to reduce towing noise. Two of these dampeners are built into the head assembly to cushion the head's side-to-side pivoting. The third dampener cushions the back-and-forth motion and must be installed in the hitch prior to use. Installation of this third dampener is easy - simply press the dampener up into the pre-drilled hole underneath the hitch head.

Easy Installation

The Hijacker Autoslide hitch is designed to attach to universal above-bed base rails (sold separately). The hitch will fit most industry-standard rails, including those from B&W, Curt, Demco, Draw-Tite, Hidden Hitch, Husky, Reese, and Valley. The hitch comes pre-assembled for an easy installation. All you have to do is bolt on the side plates and attach the head to the hitch base.

The side plates have 2 functions. They contain the feet that fit into your above-bed rails, and they allow you to raise or lower the hitch head to better match your pin box height. After you choose your desired height setting, simply bolt the side plates to the hitch base with the included hardware. Then attach the base to the rails with the included safety pins.

Clearance Formula for Short Bed Trucks

Use the formula below to ensure there will be enough space between your truck cab and trailer when executing a 90-degree turn.

(A+B) - C = Clearance

A = Distance from the center of fifth-wheel hitch jaw to truck cab

B = Length of Travel (14")

C = Width of trailer divided by 2 (to get half)

For example: If the distance from the center of the hitch to the cab is 36", 36" + 22" = 58". If your fifth-wheel trailer is 102" wide, take half (51"), then plug in: 58" - 51" = 7" of clearance.

Note: At least 4 inches of clearance is recommended to safely execute a 90-degree turn.

6107 Demco High Jacker Head Assembly for Auto Slide 5th Wheel Trailer Hitch - 21,000 lbs

6003 Demco High Jacker Adapter Plates for Auto Slide 5th Wheel Trailer Hitch

DM8550035 Installation InstructionsInstallation Details DM8550035 Installation instructionsDM8550035 Installation InstructionsAlternate Instructions DM8550035 Installation instructions

Video of Demco Hijacker Autoslide 5th Wheel Trailer Hitch w/ Slider - Single Jaw - Above Bed - 21,000 lbs

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

Video Transcript for Demco Fifth Wheel - Sliding Fifth Wheel - DM8550035 Review

Today, we're going to review part number DM8550035. This is the Demco 21,000 Pound Hijacker Autoslide Above Bed Mount 5th Wheel Hitch. Now, this hijacker autoslide is an automatic sliding 5th wheel hitch. It is designed for sharp bed trucks with a 6.5 foot bed to give you additional clearance between your truck's cab and the trailer during turning maneuvers, and it does eliminate the needs to have to get in and out of the truck, pull a pin, and manually slide the hitch back and forth. This will automatically slide by using a rack and pinion gear technology right here in the base of the hitch. It will move about up to 14 inches of travel fore and aft to help you get in and out of those tight spots. Now, normally on a 5th wheel trailer, when it connects to the 5th wheel hitch, it is designed to lock into place and pivot on the kingpin, right where it's connected to the hitch head and the jaw there, so the pin box made to move like this. On this hitch, it actually locks the pin box in, and lets the hitch head itself do the rotating.

Has this integrated locking system right here in the head to lock your pin box in place on the hitch head, and that eliminates the need for any additional locking wedges with a standard pin box. Instead, your hitch head will totally pivot with the pin box locked in place, and, if necessary, if it gets to about a 10 to 15 degree turn, it will also automatically get closer to the tailgate, which'll create more space between your truck cab and your trailer on sharp turns. Now, with it in this position, if you're towing it and the trailer's directly behind you and you're not turning, it will not move on its own back because there is a guide plate that holds it into place. It does have to get to about a 10 or 15 degree angle, then it would automatically move back if needed. Now, this autoslide hitch is designed to work with standard trailer pin boxes between a 12 inch minimum width up to a 14 inch maximum width. They have these capture plates you can see right here on the head, and these are adjusted to the width of the trailer pin box in order for this automatic slide mechanism to operate properly. So basically, what happens is with the trailer backed in and all hooked up, what you would do is you'll see these capture plates can move in and out on each side.

What you'll want to do is, once your pin box is all installed, push this up against your pin box, and then with the bolts right here, just finger tighten these bolts all the way down. You'll do both of them, and then on this side also. Then once they're tightened down, run these jam nuts up to lock them into place, and that'll keep them from moving, and this will keep your pin box from rotating on the hitch head. Allows the hitch head to do the movement, or the pivoting. Now, one thing I do want to mention, that if this hitch is installed in any trucks with like a 5.5 foot or a 6 foot bed, there is no guarantee that you'll get a full 90 degree turn with this autoslide hitch. Now, this autoslide hitch is designed for use with RV-style 5th wheel trailers that use an industry standard 2 inch diameter kingpin.

This does have a 21,000 pound towing capacity. It is a lower profile design, which helps as far as easy access for routine maintenance on it. One of the nice things that's easy to do is these jaw pins right here, they're pushed down in. You can unsnap the snap ring, pull these out, grease them up, put them back in, put the snap ring on. Makes it very easy to grease these jaw pins. This is a lighter weight hitch for easier hitch installation and removal.

One of the other nice features is if you need to take this out of your truck bed, you can just pull the clip down here below the head, pull the long pin out, about this long, and that's what keeps the head into the saddle. Once you pull that pin and clip out, you can lift that head out of the saddle by yourself, and then it makes the base even lighter to help you remove it if you don't need to tow. Now, this does feature a double pivot head, and by double pivot, we mean it goes side-to-side, and it also goes front-to-back. It does have a wraparound jaw, which'll totally wrap around the kingpin when it's installed, and in front has a nice locking bar for a smooth, safer, and more secure ride. Now, this autoslide 5th wheel hitch will come assembled from the factory to help make your installation easier and quicker. The only thing you'll have to do is add these. They do come with them. You'll just have to add the side plates to the hitch and put them in the correct hitch height position. Again, they are included. You just have to mount them in the correct position. That's the only thing. These side plates are what will connect your hitch to the rails in the above bed rails. They have the tabs in them. What you'll need to do is you'll notice on these side plates, there's 3 rows of holes, and then on hitch itself there's 2 rows, so you can move them up or down to get your 3 different vertical height adjustments to help you level your truck or trailer. Basically, the lower measurement would be 16.5 inches, and that measurement, when they say hitch height measurement, it's from the truck be to the top of the hitch head. At the lowest, it would get you 16.5 inches. The middle would be 17 and 3/4. The highest would be 19 and 1/4. So you can get it for your correct application. Now, one other thing I want to show you on here . Now, on these side plates, they will come with the pins and clips that I show here, and that's what's used once this is dropped into the rails. You run your pin and clip through to lock it into place. I also want to mention this outrigger bar right here up in the front. I have that attached with the long bolts net. That is used to help carry and distribute the hitch and trailer weight when the hitch is at its full travel distance. It'll help eliminate any movement of the hitch in the truck bed. What you need to do is adjust that after your hitch is installed and at its correct height in the truck bed and just tighten that down. Now, this hitch is made in the USA. It's made with American steel. I do want to show you how this jaw would operate. Got an example here for demonstration purposes. We have a demonstration. Here's a 2 inch diameter kingpin, like would be on your pin box, so what you'd want to do is first pull the pin and clip out. Pull your handle completely open, it locks into ready-to-couple position. And then again, this would be your pin box, for when you'd be backing up, your kingpin would be sliding in. Once it slides in far enough, it would automatically wrap the jaw around it to lock it in place, and then the locking bar slides also to keep it secure. And then before you're ready to get on the road, you just want to put your pin and clip back in so you know the handle's secure and everything's in place. That should do it for the review on part number DM8550035, the Demco 21,000 Pound Hijacker Autoslide Above Bed Mount 5th Wheel Hitch. .

Customer Reviews

Demco Hijacker Autoslide 5th Wheel Trailer Hitch w/ Slider - Single Jaw - Above Bed - 21,000 lbs - DM8550035

Average Customer Rating:  4.7 out of 5 stars   (154 Customer Reviews)

This hitch slides automatically as you drive to give you 14" of additional clearance for tight turns. A wraparound jaw provides a smooth ride and a locking bar offers added security. Pivoting head allows easy hook up and helps to limit chucking.

- DM8550035

Works excellent! Will never use any other hitch again. 603389

- DM8550035

Very happy with the product. The only draw back is the weight. Can't be loaded/unloaded by one person. A good cross-sell opportunity is to offer a tool for removal. When I first got it, it didn't fit the truck. Support team was helpful and responsive. It seemed to be due to the bed spray. I was able to get it to mount perfectly by loosening a bolt under the truck, and then smoothing the edges of the locks in the rails. 352378

- DM8550035

I have had this for a year now, It took a while to get comfortable hooking it up. but now I feel great about it. Works as described and I am more confident when making sharp turns in confined areas. 550075

- DM8550035

If you have to have a slider this is the one to buy. I’ve now driven with it about 5000 miles..the only down side is that you have to hook and unhook with the truck perfectly straight in line with the trailer. But it does work perfectly as advertised. 517815

Great, customer service with [Demco Representative] could not be any better..he knows this hitch like the back of his hand . I would buy another just because of him.
Richard - 06/05/2019


- DM8550035

great product i love it etrailer support was great. I had a question called the manufacture they have great service too. Best part is its MADE IN THE USA in Iowa. 556857

- DM8550035

I had trouble with this hitch at first. I could not get it to close and latch properly when I backed into the king pin. I worked with tech services and ended up replacing the inner pivot parts and I have really not had any issues since. Because I have to have the locking plate for my pin box, you do have to line up the truck just right for it to latch properly, but once you figure that out, it is easy. The auto slide feature works really good. I have a short bed RAM truck and I have completely turned 90 degrees with my trailer attached and it slides back with no issues to miss my cab. I highly recommend this hitch. Also the Demco Tech Services guys are great to work with. 338908

- DM8550035

Great hitch. No capture plate to deal with, you can hook up to any 5th wheel. No more greasy pin box. No more watching the mirror wondering if your going to hit and damage the cab of your truck. Works perfectly. Built solid, though I did purchase the 21K for a 15K 5th wheel. Easy to lube. The only drawback I had was that it sat just a little bit high in the truck even on the lowest mounting holes. If you are thinking of purchasing this you may want to take some measurements first. I have an 08' F350 SD with air springs so it does set high. Before I bought it I called the factory (easy to reach and eager to help) and asked them, among other things," if the hitch broke, could I easily get parts for it?" They replied that if you need parts we will get them to you wherever you are. Overall I think this is the best hitch on the market. 446202

After about 6000 miles the hitch developed some fore and aft movement. After another 2000 miles it seemed to be excessive with a loud clunk when stopping and starting. Yes, I do grease it as per instructions before each trip. I called Demco and told them the problem and they sent me the parts I needed at no charge since it was under warranty. Since I had the mechanical ability I disassembled, diagnosed and repaired it myself. I thought later on that I should have been compensated something for my time only because if I took it to a dealer they would have charged for labor. Just a suggestion, there needs to be an easier way to lubricate this hitch rather than removing the large pivot pin and also the large pivot bolt and greasing them by hand. Some well placed grease fittings would make this job a lot easier and cleaner, especially when on the road. Also, the hitch owner would be far more inclined to do it. Other than that the hitch has performed great and I am very happy with it. Thanks.
Joe W - 10/26/2018


- DM8550035

This is a quality piece of equipment. I can't wait to use it. The installation directions were complete and easy to follow. Looks fantastic. 585957

- DM8550035

Fit perfect easy install and removal 696617

- DM8550035

Well constructed, great quality and ease of use. The staff at etrailer were very knowledgeable and helpful. 640176

- DM8550035

great hitch no problems 495663

works very well thankyou
Dan - 04/13/2019


- DM8550034

Review from a similar Demco Hijacker Autoslide in Fifth Wheel

Haven’t had a chance to use it yet however it arrived quickly and in great condition. Appears to be very well built. 721164

- DM8550024

Review from a similar Demco Hijacker Autoslide in Fifth Wheel

Great customer service. Great people to deal with. Very helpful. 720987

- DM8550034

Review from a similar Demco Hijacker Autoslide in Fifth Wheel

Heavy-duty unit. Peace of mind when using this hitch. 699872

- DM8550034

Review from a similar Demco Hijacker Autoslide in Fifth Wheel

this fifth wheel is great. its does make life alot eazier and i dont worry about hitting the cab on my truck. 316248

- DM8550038

Review from a similar Demco Hijacker Autoslide in Fifth Wheel

works like it is abvertised 447633

- DM8550034

Review from a similar Demco Hijacker Autoslide in Fifth Wheel

Makes life easy to tow in shortbed truck. Set and forget! Only downside is this thing is big and takes at least two people to install and remove if you need the bedspace! 463418

- DM8550024

Review from a similar Demco Hijacker Autoslide in Fifth Wheel

The Demco Auto slide takes the worry out of towing my fifth wheel trailer with a short bed F-350. I have had no problems with backing into tight camping spots. And since everything is automatic I have one less thing to worry about while traveling with a fifth wheel. The only problem is that it is a little on the heavy side, so I just leave it in the truck when not towing. Problem solved. I am extremely happy with the product. 708027

For anyone else wondering how to use a MOR/ryde pin box with their Demco Hijacker Autoslide, you can use the Locking Plate # DM6025
Demco Hijacker Autoslide Locking Plate for MOR/ryde Pin Boxes
-- Victoria B - 10/07/2019


- DM8550034

Review from a similar Demco Hijacker Autoslide in Fifth Wheel

Very easy to install takes 2 people most of the way and very time consuming . Looks great but haven't hooked up to a 5th wheel trailer yet . Will update at that time . 601857

- DM8550024

Review from a similar Demco Hijacker Autoslide in Fifth Wheel

Unit is nice and fits the Ford mounting system. Very heavy unit takes two or more people to mount and unmount 297301

Works great, had a problem with the pin that keeps the hitch open at first. Demco sent me the part and works great
Bob t - 09/21/2017


- DM8550024

Review from a similar Demco Hijacker Autoslide in Fifth Wheel

Great product, easy to assemble and works as advertised. 607371

- DM8550024

Review from a similar Demco Hijacker Autoslide in Fifth Wheel

Very happy with my Demco Autoslide hitch after one year. We pull a Montana 3120 35 ft 5th wheel with a 2019 Ford F-350 short bed. Took a month long 6,000 mile trip from Colorado to New England/Canada this Summer. Lots of hilly/curvy roads and some remote campgrounds with tight corners and some near 80 degree back ins. Never came close to trailer contacting the truck. I’ve had no jerking or other issues when turning or stoping/starting. Works great. The only drawback is there isn’t much room for error when you back up to hook up the trailer, so it takes a little practice to get used to correctly lining up your Demco Hitch to the trailer. The first couple of trips, it took me 3 or 4 attempts to properly line it up. No longer an issue for me after a few trips and you get used to the angles. It weighs about 300 pounds. I got a small chain hoist which I installed in my garage rafters and easily lift the hitch in and out of my truck and just let it hang front he rafters until I need to use it. 705916

One thing to consider - there are a lot of small springs and levers working inside the hitch head to work the king pin jaws. While this 5th wheel hitch is certainly robust and designed to take a beating from your 5th wheel when towing, it wasnt designed to support its own weight for extended periods of time.
-- Victoria B - 10/02/2019


- DM8550024

Review from a similar Demco Hijacker Autoslide in Fifth Wheel

This is a great hitch. The auto slide feature is awesome and well worth the price. I can do a sharp turn in a cul-de-sac with my standard bed F250 truck and not worry at all about my 5th wheel hitting the cab. 600441

- DM8550024

Review from a similar Demco Hijacker Autoslide in Fifth Wheel

I love the it so much I had two of my friends get on. 593542

- DM8550022

Review from a similar Demco Hijacker Autoslide in Fifth Wheel

Nice product. Pretty much idiot proof once you get it set up. After that just hook up and go. No worries about crushing your cab when running a short bed. Built well. Heavy duty. Only complaint would be the weight manually getting it in and out. 301924

Show More Reviews

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  • Comparing Demco and Pullrite Automatic Slider Hitch for 2017 Ram 2500
    The Demco Hijacker Hitch part # DM8550035 that you referenced has been confirmed as a fit for your 2017 Ram 2500 with hitch package and short bed as long as you use the adapter part # DM6099 and would be what I would recommend for you. It would not require any rail kit adapters either. It is very similar to the Pullrite Superglide in operation. I have read many online reviews on other sites and forums where people compare the two saying that the Demco costs less and tends to be more...
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  • Best Auto Sliding 5th Wheel Hitch for a 2018 Chevrolet Silverado 2500
    The best auto sliding 5th wheel hitch for your 2018 Chevrolet Silverado 2500 is the Demco Hijacker Autoslide 5th Wheel Trailer Hitch. This hitch is rated for use up to 21,000 lbs, has an auto sliding base which provides up to 14" of front to back travel, and uses a rail free design that allows for full access to truck bed when the hitch is removed. If you have the factory rail kit then you are going to want to use part # DM8550035 for the hitch and part # DM6194 for the adapter. If you...
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  • Recommended 5th Wheel Hitch for a 2018 Ford F-150 with 6-1/2 Bed and Aluminum Body
    I have 2 different recommendations for your 2018 Ford F-150 with the 6-1/2' bed. They are both excellent options that provide different conveniences of their own. Please note that any hitch that installs in the bed of a pickup will be attached to the frame of the vehicle. This means that the pin weight will be placed on the steel frame of your F-150 and not the aluminum bed. Since the pin weight would relate to the payload you just need to be sure that you are not exceeding the weight ratings,...
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  • Auto-Sliding 5th Wheel Hitch for 2017 Ford F-350 Super Duty Towing Keystone Raptor 355TS
    If your 2017 Ford F-350 short bed has the factory 5th wheel rail kit you can use the 21K Demco Hijacker autoslide hitch # DM8550038 which will drop right into the factory pucks and provide 14-inches of slider travel automatically when you make a sharp turn. For a manual slider that will also fit the Ford factory rail kit the 20K B&W Companion Slider hitch # BWRVK3370 offers 12-inches of slider travel and among the best build quality of any 5th wheels. The Companion features a fully-articulating...
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  • Best Auto-Slide 5th Wheel Hitch Needed for 2019 Ford F-250 With Short Bed
    An autoslide 5th wheel hitch is going to make your life much, much simpler if you are towing a 5th wheel trailer with a short bed truck like your 2019 Ford F-250 Super Duty. The best autoslide hitch is the Demco Hijacker because of its highly secure jaw system which ensures a complete, secure connection to your trailer's king pin as well as its cushioned head which will give you a smoother and quieter ride while towing. The Hijacker is available in two different towing capacities, 18,000...
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  • Recommended 5th Wheel Hitch to Use with a 2018 Chevy Silverado 3500 with Short Bed and Prep Package
    The 5th wheel hitch that I recommend using with your 2018 Chevrolet Silverado 3500 short bed with the prep package is the Demco Hijacker Autosliding 5th wheel hitch. This comes in an 18K # DM8550034 or 21K # DM8550035 version and installs in your truck bed using the Rail Adapter # DM6194. Both options are the exact same so you will just want to choose one that is rated for at least 2,000 lbs more than what the GVWR of your trailer is for the sake of safety. I like to recommend the Hijacker...
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  • Best Sliding 5th Wheel Hitch for 2019 Nissan Titan XD Short Bed With Factory Gooseneck
    The best fifth wheel hitch for your 2019 Nissan Titan XD short bed with the factory gooseneck is the Demco Hijacker Autoslide because you will never again need to get out of your truck just to make a turn, making your towing experience much more convenient. It also has a highly secure jaw system which ensures a complete, secure connection to your trailer's king pin as well as its cushioned head which will give you a smoother and quieter ride while towing. The Hijacker will mount onto...
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  • What is Needed to Install Demco Hijacker Autoslide in 2018 Chevy Silverado 2500 With Puck System?
     A Demco Hijacker autoslide fifth wheel hitch would be a great option for your 2018 Chevy Silverado 2500 and you would need the Demco 5th Wheel Rail Adapter # DM6194 to mount it in your truck bed with the factory puck system (I assume you have a short bed though if you did happen to have a long bed you would need Rail Adapter # DM6206). The Demco Hijacker has a capacity of either 18,000 lbs # DM8550034 or 21,000 lbs # DM8550035; this hitch slides automatically so you no longer have to be...
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  • Best Autoslide Hitch For 2020 GMC Sierra 2500 With Factory Puck System
    It is possible! I recommend the 18K Demco Hijacker Autoslide 5th Wheel Trailer Hitch w/ Slider part # DM8550034 or the 21K Hijacker # DM8550035 with the Demco 5th Wheel rail adapter part # DM6333. The Hijacker is an automatic slider so you do not have to get out of the Sierra every time you make a turn to adjust the slider. It provides 14" of front to back clearance for cab clearance and 3" of height adjustment for bed rail clearance while towing. The other great thing about the Hijacker...
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  • Autosliding 5th Wheel Hitch and Suspension Enhancement for a 2017 Ram 3500 with Factory Prep Package
    We have the perfect solution for you to tow your new 2017 Solitude 384GK with your 2017 Ram 3500 with a 6 foot bed. I looked up your 5th wheel trailer online and found that it has a Gross Vehicle Weight Rating (GVWR) of 16,000 lbs. The Mopar 25K would definitely be able to handle that weight, but you are exactly right. With a 6 foot bed you will need a sliding 5th wheel hitch to avoid damaging your 3500 when making those tight turns. The Demco 5th wheel hitches with the Autosliding...
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  • Does the Demco 5th Wheel Rail Adapter # DM6194 Lock Into the Puck System on a 2016 Chevy Silverado
    Yes, the Demco 5th Wheel Rail Adapter for Chevy/GMC OEM 5th Wheel Towing Prep Package # DM6194 will be secured by both the gooseneck ball mount point and the 4 puck points in the bed of your 2016 Chevrolet Silverado 2500. This will work perfectly with either the 18K Demco Autosliding Hijacker # DM8550034 or the 21K version # DM8550035. Even though the Andersen Ultimate Connection 5th Wheel Trailer Hitch System with Adapter # AM3200 is a great lightweight 5th wheel system to use, it...
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  • 5th Wheel Hitch Options for a 2015 GMC Sierra 2500 Denali
    Since your 2015 GMC 2500 has the 6-1/2 foot bed you will want to go with a sliding 5th wheel hitch. There are a couple of different options that you can go with here. If you are wanting to go with a 5th wheel hitch that uses the standard base rails then I recommend going with the Reese 20K # RP30083 along with Base Rails Kit # RP50066-58. This 5th wheel hitch is one of the best hitches that we currently carry due to the single-jaw system and 4-way pivoting head to help secure the king...
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  • Compatibility of Demco Autoslide with 2018 Ram 2500 6.5 Foot Bed
    The Demco 13K with a 22-1/2 inch slide # DM8550040 and # DM8550041, will not work for your application. It would cause issues with the tail gate. The confirmed fit for your truck is the Demco Hijacker Autoslide 5th Wheel Trailer Hitch w/ Slider - 18,000 lbs # DM8550034 or the 21K # DM8550035. Either will work well with the Rail adapter for Ram 5th Wheel Towing Prep Package # DM6099 or the Reese 5th Wheel Rail Adapter # RP30154. The weight of the hitch is 273 lbs for the 18K and...
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  • Sliding 5th Wheel Hitch That Does Not Require Leaving Truck to Slide for 2020 GMC Sierra With Pucks
    For any truck with a bed that is less than 8 feet long you are definitely going to want a sliding 5th wheel hitch as opposed to a fixed hitch, and for this there is one hitch that meets your needs perfectly - the Demco Hijacker Autoslide. This is the only hitch available that is going to allow you to stay in your truck when making a sharp turn because it glides effortlessly on its own as you round those corners. For your 2020 GMC Sierra 2500 with the factory prep package you will need...
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  • Recommended 5th Wheel Hitch for Chevy Silverado Crew Cab 4x4 Short Bed
    An 8 foot bed is always more ideal for towing clearances with a standard 5th wheel hitch, but a short bed is definitely more ideal for daily driving. The short bed trucks are more and more popular and the market for sliding 5th wheel hitches or rotating pin boxes has grown due to it. I wouldn't hesitate to get the 6-1/2 foot bed with your Silverado HD Crew Cab 4x4. There are a couple of other things to consider. I do recommend getting the factory prep pucks in your truck and then...
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  • Demco Hijacker Autoslide Compatibility with 2017 Ford F-250 Factory Rail System Holes/Pucks
    For your Demco Hijacker Autoslide, if you have the above bed rail version like the 18K # DM8550034 or the 21K # DM8550035, then you will be able to use the adapter for your factory puck system. This adapter for your 2017 Ford F-250 is the Reese Elite Series Underbed Rail Adapter for Standard 5th Wheel Trailer Hitches - 20,000 lbs # RP30156. If you want the hitch that will fit without an adapter, the # DM8550038 or # DM8550024 would be the options. You may also want to consider...
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  • What Is Angle To Hook Up Trailer With The Demco Hijacker Autoslide 5th Wheel Trailer Hitch
    I reviewed the instructions for the Demco Auto-Slide 5th Wheel Hitch, Item # DM8550035, and the coupling and uncoupling needs to be straight or slightly angled with alignment. It works pretty easily with 10-15 degree angle but anything larger will not allow proper coupling. If you have a factory rail kit, you will need installation rails Item # DM6099. If you do not have the factory rail kit, you will need Item # DM8552026-71. I have attached the installation instructions, an...
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  • Autosliding 5th Wheel Hitch for a 2020 Chevy 1 Ton Pickup
    There actually are autosliders that are compatible with a 2020 Chevy Silverado 1 Ton! We have the Demco Hijacker Autoslider which comes in 18K # DM8550034 and 21K # DM8550035 versions depending on what size 5th wheel trailer you're needing to tow. The Hijacker offers a single-piece wraparound jaw that provides 360 degrees of contact with your king pin and then Demco includes a 3/4" thick steel locking bar that reinforces the connection for extra security and peace of mind. It includes...
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  • Is Sliding 5th Wheel Hitch Needed for 2018 Nissan Titan XD Short Bed With Factory Puck System
    There are options for your 2018 Nissan Titan XD, though the Curt Q20 5th Wheel Trailer Hitch # C16530-16026 is a fixed hitch and for a short bed '18 Titan XD, in order to make a sharp turn you will either need a sliding hitch, or a fixed 5th wheel hitch with a Sidewinder. The only caveat to this is a Q20 is not compatible with a Sidewinder so you would need to go with a very similar hitch, the Curt A20 5th Wheel Trailer Hitch # C16540-16026. For a sliding hitch on your short bed 2018...
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  • Available Auto-Sliding 5th Wheel Hitches for 2017 GMC Sierra 2500 HD Short Bed Pickup
    Your short-bed Sierra 2500 HD pickup does need a sliding type 5th wheel hitch to give you a reasonable turning radius. And yes, you do already know the answer! Safety margin in towing capacity is always a sensible idea. In your truck that has the factory 5th wheel prep an 18K hitch like the Demco Hijacker Autoslide # DM8550034, or better yet their 21K # DM8550035, will provide the same automatic sliding feature and a full 14-inches of slider travel, the same as the PullRite 4400. Both...
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  • Recommended Sliding 5th Wheel Hitch for 2017 Ram 3500 Dually Mega Cab with Factory Pucks
    For your 2017 Ram 3500 dually that has the 6-foot bed and factory rail kit my best recommendation for a sliding hitch is the 20K-rated B&W Companion # BWRVK3670. The build quality of B&W hitches is unmatched and over 300 of our customers that have selected this hitch have rated it with almost a perfect score! The Companion drops right into your pucks - no adapters required - and it offers 12-inches of slider travel, a double-pivoting head for easier hitching and a double jaw system...
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  • Troubleshooting Demco Hijacker Autoslide Making Noise
    How old is the hitch? Does your fifth wheel have a standard pin box or a cushioned pin box? Has it been lubricated? Does the locking bar automatically lock when the jaw closes? The thing that comes to mind immediately is the capture plates may not be adjusted properly. They MUST be evenly on both sides to 1/8" more than the width of the pin box.
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  • Can Trailair Flex Air # LC328492 Replace Lippert 1621HD Pin Box on a 2017 Jayco Seismic Wave 355W
    You are on the right track of choosing an upgrade for the Lippert pin box on your 2017 Jayco Seismic Wave 355W. Since the pin box is a 1621HD instead of a regular 1621 you need to go with a different pin box as the Trailair Flex Air # LC328492 is only compatible as a 1621 replacement. If you like the Trailair line then you can use the Trailair Air Ride # LC158778. This is rated for 21,000 lbs and the only difference between this and the Flex Air is that the Flex Air has a pivoting head...
    view full answer...

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Info for this part was:

Expert Research:
Mike L
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
Adam R
Expert Research:
Jeffrey L
Edited by:
Lindsey S
Installed by:
Jeff D
Video Edited:
Jacob T
Video Edited:
Chris R
Video by:
Kathleen M
Updated by:
Laura H
Updated by:
Sarah W
Updated by:
Amanda M
Updated by:
Kristina F
Written by:
Chelsea B
Test Fit:
Robert C

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