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This hitch takes care of tight turns automatically. The built-in rack-and-pinion gear system slides the hitch head up to 14" toward the tailgate whenever you turn at slow speed, giving you the space you need between the cab and trailer. When you straighten out, it slides itself back into towing position. There’s no lever pulling or climbing in and out—just smooth, controlled movement that makes maneuvering around campsites or parking lots simple.
The wraparound, single-piece jaw design gives you full 360-degree contact around the trailer’s king pin for a tight, secure connection. A 3/4" thick solid steel locking bar reinforces the latch, automatically locking when the jaw closes. This setup cuts down on rattle and chucking so the ride feels stable and quiet mile after mile.
Hooking up feels easier thanks to the double-pivot head that moves both front-to-back and side-to-side. It adjusts naturally as your pin box meets the hitch for a smoother connection. Three polyurethane dampeners inside the head help absorb road shock and reduce towing noise, keeping things calm over rough pavement or uneven campsites.
You can dial in the right fit with three height positions—15-1/4", 16-1/2", or 18"—so your trailer stays level and maintains proper bed rail clearance. The side plates bolt directly to the base for easy adjustment, giving you flexibility to match different trailer setups without extra parts.
Rated for 21,000 lbs gross towing weight and a 5,250 lbs vertical load limit, this all-steel hitch is built to handle serious fifth wheels. The rust-resistant black powder coat finish stands up to weather and use, while the diamond-plate tread on the base adds a tough look that matches its strength.
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
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today we're going to take a look at the Demco Hijacker Premier Series Custom Mounting Brackets for Fifth Wheel Above-Bed Base Rails. This is a custom-fit part. It is designed to fit the 2011 and newer Ford F-250, F-350, and F-450 Super Duty trucks with either the 6 3/4 foot truck bed, or the 8-foot bed without the factory rail kit. Now on any custom-fit part I always like to recommend for you to go to our website, use our fit guide, put in your year and model vehicle, and it'll show you if this part will work for your application. Now these installation brackets will mount beneath your truck bed to provide attachment points for your Fifth Wheel rails to attach to. Now the base rails we do sell separately on our website.
It's part number DM6071. The rails is what sits in your truck bed and allows the installation of the Fifth Wheel hitch to the truck. Now these are custom-fit brackets. They mount to the outside of the frame using existing holes in your vehicle's frame. Because of that they minimize drilling, reduces installation time, and they're designed to avoid known obstacles that are along your specific vehicle's frame. Notice they have a tag on each side.
Driver's it says here, passenger here, so it helps you know what position these go in. Now these parts are a sturdy steel construction, have a nice black powder coat finish to help resist corrosion. All the hardware to install them is included. It comes with a nice set of detailed instructions that'll describe how to install it. It even has pictures to show you how to install it.
These parts are made in the USA, but that should do it for the review on the Demco Hijacker Premier Series Custom Mounting Brackets for Fifth Wheel Above-Bed Base Rails.
Ratings & Reviews
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.
This sliding hitch is great. I have no worries about my fifth wheel crushing my truck cab. It's the real deal.
Purchased a heavier 5th wheel so this one replaced my pull rite. No more capture plate to deal with. Very happy with this hitch.
I have not received the Autoslide trailer hitch only the locking plate.
When will I get the hitch??
I wish the place I bought my camper would have recommended this from the start. Makes owning a 5th wheel so much easier!
Good hitch but very heavy and hard to maneuver
If that's not an issue it works perfect
Don't have to worry about turning with 6,4 bed
Etrailer great job shipping , etc
Worked good but a lot of adjustments. They sent the wrong capture plates. Demco customer support was great.
Sierra K.
9/1/2021
In the description it says locking plates, sold separately, are required for the Rota-Flex Pin box that you have. Item # DM6171
The hitch and adaptor arrived in three days. Everything went together fairly easy considering I had just torn my rotator cuff a week earlier and my helper never showed up. Definitely would have been easier with two people. Had planned a trip next week to Yellowstone National Park but will have to wait until after surgery. Will do a follow up review after I am able to see how well auto slide works. Great customer service!
Really like this hitch. Two things I don't like however, are 1) you need to backup almost perfectly the way you unhooked or it's a bear to hitch backup. 2) I don't like the bolts for the pinbox. Wish there was a quicker alternative. Hate getting a wrench out to tighten and losen.
I think that etrailer requires their employees to lie so as not to have any confrontations with customers on the phone. I placed two orders on 8/23 and immediately received followup emails that order received, order processed by (employee name) and then is in stock with associated time each step completed.
Then I noticed that shipping date kept getting 1 day later each day I checked order status. So, I contacted etrailer on day 5, 8/27 and find out my item was not in stock at all and would not be until mid Oct. Well,I then had them order me the same part by a different manufacturer and was told that it was in stock and would still be still be shipped 8/28 and delivered on 8/30, the same day my fifth wheel hitch is being delivered, so everything seemed rectified until I checked order status online the evening of 8/28 and find that the ship date again had been pushed back another day 8/29 with a delivery date of 9/1, (which is a Sunday). Seems that at this rate I may have it sometime in September. Going by their assurance of delivery on 8/30, I arranged to pickup my new camper on 9/5, that seems to be an impossibility at this time because Order #121389499 the installation kit with base rails is a very necessary part of the assembly. So, in closing I can only say that if you do not have the parts to ship, be honest and state the truth. This has made me feel very negative now toward etrailor as I already had become with Camping World. Is there any honesty in the RV parts aftermarket?
Fast shipment, quality products, excellent communication and customer service, competitive pricing. E Trailer is a great company to deal with. George rocks@
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.
Richard
6/5/2019
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.
We received the hitch in great shape. The boxes were in very good shape. The only problem was a missing polyurethane dampener that was’t included. I called and received great service from etrailer. I have had a demco autoslide for several years but it was an 18000 pound hitch and went to a 21000 pound hitch. They are the best hitch for a shortened truck on the market
Extremely well made product and as always arrived in perfect condition. Etrailer is my go to for all things trailer related and is the first place I look!! They have the best prices around and stand behind every sale which gives me confidence in every purchase. I love this hitch and look forward to many years of towing with it! Thank you again etrailer!!
thanks to Greg S. he helped me a lot in choosing and answering all my questions
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.
It works really well. It is really nice not to worry about the 5th wheel trailer clearance when making tight turns. We pulled the rig several hundred miles last summer and at least 3000 more since January with no issues.
Also I used the height adjustment feature when setting up my trailer.
When I received the shipment I was impressed by how well it was packed. It would have been nice to had had help, but I was able to assemble and mount it myself. The instructions were good, and as I said, we have had no issues during our first snowbird season.
This is an initial impression review. The hitch was delivered on a pallet and arrived earlier than expected. Everything was well packaged with all associated hardware. This hitch was mounted on Reese Quick-Install Custom Outboard Installation Kit w/ Base Rails for 5th Wheel Trailer Hitches ( in the bed of a 2007 Dodge Mega Cab 3500. Overall it appears to be well constructed, unfortunately, I did have issues with bolting the hitch adapters to the hitch. The hardware is either grade 3 or 5 (looks like 5) and did not torque well. I had one bolt that stretched and sheared before I reached the torque spec (photo attached). I'm not sure if this was designed to use the weaker hardware or a business decision, however, all eight bolts were replaced with grade 8. I do look forward to utilizing this hitch in a few months. I would at photos, however it appears that I can't.
Works great except life would be so much simpler if they had a hole drilled on each side to remove the lock pins that are below it in the mounting plate to be able to remove the unit from the truck.
Jon G.
7/30/2021
Thank you for the review! While I do see where a hole in the mounting bracket would make this easier to remove with your Adapter Plate # DM6333, a solid bracket in this instance is much better for strength, especially considering this hitch is designed around the universal rails for trucks.
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.
Best 5th wheel hitch ever for a RAM 3500 mega cab.
No issues with the RV coming close to the back of the cab or back glass.
I would recommend this hitch to anyone searching for a 5th wheel hitch for a Ram mega cab, I wish I knew about it when I first purchased my Ram mega cab, I learned the hard way, after busting out my back glass...and trying several hitches. This hitch is truly an autoslide. I have showed several short bed guys this hitch and told them the cost of the 5th wheel hitch is worth it.... It is top of the line. This will be the last 5th wheel hitch I will ever need to purchase.
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.
Joe W.
10/26/2018
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.
Under the bed puck system. The worse part about the installation was getting the 8 hex bolts loose in the bed. Good grief!
After that, everything went well as all the parts fit my F250 perfectly. All the different nuts, bolts, and brackets. More voodoo magic. The holes i had to cut in the bed were marked with dimples courtesy of Ford. I’m not a mechanic with every tool imaginable and didn’t stay at a Holiday Inn, so it took longer than others I’m guessing but it’s all tight, and works great. I like the idea of taking the 5th wheel out to have a flat floor in the bed.
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.
This review is for the Demco Autoslide 21k and accompanying OEM rail adaptor I purchased for a 2020 Ram 3500 Megacab DRW. I've owned it one year. Overall, the hitch performs as I expected. It is high quality, very sturdy and seems like it will last for a long time. I had it installed at the dealer when I purchased the truck. It automatically slides to protect the cab in my 6'4" bed without any incidents. I tow a standard fifth wheel RV. There are a few negatives, which are not necessarily shortcoming of the product but, instead, necessary evils to allow me to have a short bed. First, it is BIG and BULKY. I believe this is just a function of the mechanism required to allow the autosliding feature and I am not really sure there are any other lighter alternatives with this feature. The fact it requires two parts (OEM Puck Rail and hitch), make it even more bulky. It takes up almost the entire bed and prevents most auxillary tank / tool box combos from fitting. Even standard size storage bins will not fit in my bed. I would prefer if they had a custom OEM all-in-one hitch for my truck like they do for the Ford. It adds significant weight, which decreases carrying capacity, which can be at a premium in hauling a heavy fifth wheel. I've never even tried to take it out of the bed due to the weight and difficulty. I also am not very happy with the adjustable catch plate design. It requires significant manipulation loosening and tightening 8 nuts when hitching and unhitching. This requires a step ladder to reach the nuts. I also found out after the fact that it does not come with the right size catch plate attachments for my hitch and I had to purchase a separate part, which added unexpected expense and delayed my taking the RV on its first trip. Overall, I am satisfied with the hitch.
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Darrel
1/17/2023
I firmly believe that every fifth sold should have one of these hitches. It is a job getting it in and out of truck but I feel better knowing its not going to let my trailer damage my truck.