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  1. Fifth Wheel Hitch
  2. Demco
  3. Fixed Fifth Wheel
  4. 21000 lbs GTW
  5. OEM - GM
  6. Double Pivot
Demco UMS Double Pivot 5th Wheel Hitch - Single Jaw - Chevrolet/GMC Prep Package - 21K

Demco UMS Double Pivot 5th Wheel Hitch - Single Jaw - Chevrolet/GMC Prep Package - 21K

Item # DM37VR
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Fifth Wheel Hitch

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Product Expert Kathleen M

Is this right For you? Product Expert Kathleen M says:

Yes, if you:

  • Are looking for the best value in a sturdy hitch
  • Get peace of mind from the reinforced, wraparound jaw
  • Have a pin box that doesn't extend down very far and need a hitch that sits almost even with your bed rails

No, if you:

  • Have an eye for details and would be bothered by chipped paint that could eventually lead to rust
  • Mind having to coax the handle to get the hitch jaws to open up, especially if you're on uneven ground
  • Use your truck bed often to haul other things and need to be able to remove the hitch
This hitch has a sturdy wraparound jaw with a locking bar for added security. Pivoting head eases hookup and helps limit chucking. Polyurethane bumpers offer cushion for a smooth ride. Base secures in underbed mounts and removes for full bed access. 1-833-496-1390 to order Demco fifth wheel hitch part number DM37VR or order online at etrailer.com. Free expert support on all Demco products. Guaranteed Lowest Price and Fastest Shipping for Demco UMS Double Pivot 5th Wheel Hitch - Single Jaw - Chevrolet/GMC Prep Package - 21K. Fifth Wheel Hitch reviews from real customers.
  • All Info
  • Reviews (37)
  • Q & A (0)
  • Photos
  • Why etrailer?

Demco Fifth Wheel Hitch - DM37VR

  • Fixed Fifth Wheel
  • 21000 lbs GTW
  • Demco
  • OEM - GM
  • Double Pivot
  • Premium - Single-Hook Jaw

This hitch has a sturdy wraparound jaw with a locking bar for added security. Pivoting head eases hookup and helps limit chucking. Polyurethane bumpers offer cushion for a smooth ride. Base secures in underbed mounts and removes for full bed access.


Features:

  • 5th-Wheel hitch mounts in your truck bed so you can tow your 5th-wheel trailer
  • Rail-free design allows for full access to truck bed when hitch is removed
  • 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 head eases hookup and helps to limit chucking
    • Pivots front to back and side to side
  • Cushioning polyurethane dampeners help reduce noise and absorb road shock
  • 4 Height settings to fit your application
  • 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 corrosion-resistant powder coat finish
  • Fast, easy installation
    • Drops into the 4 receiver pucks that are built into your factory underbed rails
  • Plugs are included to keep dirt and moisture out of the receivers in your truck bed when the hitch is not mounted
  • Made in the USA


Specs:

  • Application: 2020 Chevrolet and GMC trucks with factory-installed towing prep package
  • Gross towing weight: 21,000 lbs
  • Height adjustment range: 16" - 19"
  • 5-Year limited warranty


Secure Wraparound Jaw with Locking Bar

Wraparound Jaw

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 UMS hitch offers tighter tolerances around the king pin, which minimizes both rattle and chucking, for a smooth, quiet ride.


A 3/4" thick 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

Double Pivoting 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 hookup is easy because the hitch head will automatically pivot to the proper angle when it comes into contact with your pin box.


Dampeners

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 and Simple Removal for Full Bed Access

This UMS Double Pivot hitch is specially designed to fit in the underbed rails of your Ford Super Duty factory fifth-wheel towing prep package. To assemble the hitch, 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 OEM tow package receivers, 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 lower the hitch into the 4 puck receivers in your truck bed. Turn the handles to lock the feet into the pucks and secure the handles with the included safety pins. The hitch can be removed to give you full truck bed access. Simply remove the safety pins, turn the handles to unlock the feet, and lift the hitch out of the receivers.



6331 Replacement Saddle Bracket for Demco Hijacker SL Series and UMS 5th Wheel Trailer Hitches

6332 Replacement Side Plates for Demco Hijacker UMS 5th Wheel Trailer Hitch - 21,000 lbs

6169 Replacement Head for Demco Recon 5th Wheel Trailer Hitch - 21K

Installation Details DM37VR Installation instructionsAlternate Instructions DM37VR Installation instructions

This Product Fits The Following Vehicles





Customer Reviews

Demco UMS Double Pivot 5th Wheel Hitch - Single Jaw - Chevrolet/GMC Prep Package - 21K - DM37VR

Average Customer Rating:  4.8 out of 5 stars   (37 Customer Reviews)

This hitch has a sturdy wraparound jaw with a locking bar for added security. Pivoting head eases hookup and helps limit chucking. Polyurethane bumpers offer cushion for a smooth ride. Base secures in underbed mounts and removes for full bed access.

- DM37VR
by:

Other than the logo sticker being upside down the hitch is great. Demco is sending a new one. No problem to assemble and install. Regarding etrailer.com, what rating is above excellent? Pat C in customer support went above and beyond to address any issues and was always ready to answer any questions.



- DM37VR
by:

This hitch did amazing with a trailer move i preformed over the weekend..Demco products are highly recommended.



- DM37VR
by:

Can't say enough good thi gs about e-trailer has worked with me, in turn I and my family have purchased many items. My hijacker hitch works perfect.



- DM37VR
by:

My goodness, service was so good! Knowledgable person answered the phone and guided me to a product that worked for me. Shipping was 2 days! Fantastic experience! Thanks a ton!



- DM37VR
by:

When I called the support staff was very helpful



- DM37VR
by:

Very helpful!!!



- DM8550032
by:

Review from a similar Hijacker UMS in Fifth Wheel Hitch


Having owned and used the 2005 predecessor to this hitch, I can say it's done well for us. I am hoping that this new clamshell design will make connecting to our 5th wheel toy hauler even easier. We've never invested in a hitch cover for the old one and only travel about 5 times per year. The hitch is always in the weather. We plan on covering this one as the rain washes away vital lubrication and the sun evaporates said same. This has made operating the old slide bar type hitchhiker a pain from time to time. I was disappointed in the packaging for shipment. There were three separate cardboard boxes, two of which had parts either penetrating out through the sides or in the one case, a bag of bolts falling out upon delivery. I would have liked to see better operating instructions included in the box. There are parts lists and schematics for each of the separate assemblies, but nothing aside from the stickers on the hitch on how to properly use and maintain the hitch.


Comments
The hitch functions great but the finish is peeling off in places.
Don D - 04/12/2018



- DM8550032
by:

Review from a similar Hijacker UMS in Fifth Wheel Hitch


First, thanks to Christina for the service and information re hitches and selection.Ok now for the complaints..... they are few. THE instructions are poor at best and the description details are misleading. They state no drilling required other than the truck bed. While I am sure this is true for 2010 trucks and newer, not so for my2007 F350. Not stated in the description is the fact that older trucks require 4, 1\2 inch holes need to be drilled in the truck frame rails. No big deal but be prepared to drill them if your truck is an older mod. Ford. Came in four boxes, each with its own set of instructions... What I was looking for was a Start Here point. That didn't exist so it was guess work for a starting point. Referring back and forth to different sections for what to do. Once I got past the slight confusion ,assembly and install was pretty easy. Took about 4 hours start to finish. Haven' towed with it yet..... that happens later to day. Good stuff. The hitch is well made and Quality seems to be outstanding. It works just as expected easy to place the hitch in the truck and comes out easily too nice clean bed after removal. If it weren't for the instructions this would be 5 star rating.



- DM8550032
by:

Review from a similar Hijacker UMS in Fifth Wheel Hitch


Not to difficult to install. It will require 2 people to get the bolts torqued down. Handles a 14000 lb fifth wheel with ease



- DM8550032
by:

Review from a similar Hijacker UMS in Fifth Wheel Hitch


Hitch appears to be well-constructed and sturdy. I have not yet installed it. Some assembly is required, and the instructions aren't crystal clear. Better illustrations would be helpful. The videos online are the best source of installation information. Shipping materials lack protection. The powder coating was damaged in a few locations, as well as the instructions. I expect the hitch will operate exactly as designed a long as I protect the exposed parts from the inevitable elements. Rubber grommets would be a nice addition to the holes drilled in the truck bed.


Comments
Hitch is a bit tough to remove and install, so I recommend getting it exactly right the first time. It should not require persuasion to put it in place. Keeping the plugs in place helps ensure crud doesnt invade and cause issues. Other than that, it pulls the load every bit as advertised.
Dana F - 06/11/2019



- DM8550033
by:

Review from a similar Hijacker UMS in Fifth Wheel Hitch


Very simple install. Very well built unit. Had to remove 1 shim on 3 of the feet because the handles were way too tight. Had ro use a rubber mallet to turn them at first. After removing the shims, it is perfect. I purchased a small master lock to replace one of the cotter pins for the safety pins so that noone steals the hitch. No noise while driving with just the hitch installed at all. I have not had a chance to tow anything as of yet--- pick up my 40' 5er wed! Seems to be a very well made, good looking, compact hitch. This was installed in a 2018 F350 long bed dually woth the oem under bed puck system.


Comments
Fantastic after a full year of use. 5er weighs 16k and no lurching. Also very nice when parking on an un level surface... Just hook up and go! I have done 9 trips with about 5k total miles so far. It is very easy to remove-even after back surgery. Highly recommend.
Troy - 09/14/2019



- DM8550032
by:

Review from a similar Hijacker UMS in Fifth Wheel Hitch


Great unit and help from etrailer. We sold the 5th wheel that had a sidewinder hitch on it. We are buying a 2017 Keystone Cougar RLSWE now. Will this Demco work on it? Thanks


Comments
The Demco Hijacker is compatible with any standard pinbox, and should work well with your new fifth wheel.
-- Etrailer Expert Mike L - 11/05/2018


- DM8550033
by:

Review from a similar Hijacker UMS in Fifth Wheel Hitch


Hitch is nice and makes me feel more comfortable being a more novice RV'er with the large steel bar that acts as a secondary safety, unlike one of the other big brands that just has teeth that close around the pin. Assembly took a couple hours of blood and sweat even though it really is very easy.... You have to make time to torque about 20 or so bolts, but that's pretty typical of anything you plan to drop up to 21k pounds on and jerk around all over the country. Install into/out of the truck bed is now a 5 minute project thanks to a block and tackle in the garage ceiling. Extremely easy to put in or remove as long as you have an overhead weight bearing device of some sort. Beyond my experience with dragging a 17k pound RV with it, the mfgr is VERY responsive if you call for help. I was missing 1 washer upon assembly and the sticker decal was damaged in shipping but the MFGR had new ones in my mailbox in 2 days at no charge. They are also VERY good on tech support. The only caution I have on this is make 100% sure you know what grade bolts you have and what you should torque them to. Novice mistake: I rated the bolts based on the chart in the instruction guide but I rated on head size, not the diameter and thus I over-torqued. Luckily I did not have the means to torque to the actual higher spec or I would have snapped them at 250ft-lbs. If you have any questions on correct torque, call the mfgr and as for tech support! As for usage experience: Carry a long stick with you. We end up on crooked camping sites frequently and the only issue is that while this hitch moves ALOT to accommodate, sometimes you may get up under the pin-box and you just can't get the hitch to snap shut. Having a long stick on-board will let you push on the spring-loaded part and cause it to snap closed. One last thing from experience: lube, lube, lube. Keep the thing lubed as per the manual and do not be stingy with it on the parts that slide and grab your king-pin. It helps out drastically in getting it to snap closed on the 1st try. As for lubing the top plate, everyone is using those plastic lube discs these days. They work fine BUT: They WILL cause you a bit of grief in getting the pin exactly where it needs to be to snap closed on occasion. The hitch has enough wiggle room to accomodate them but it is not 'designed' for it, so once you're 1/4" higher out of the hole than spec, sometimes you will have to play with it to get it shut. If you ever find yourself just TOTALLY unable to get it to close on the pin, put your jacks back down and pull out from under your trailer. I totally destroyed one of those plastic discs a week ago and spent 40 minutes fighting and cussing at the thing b/c it wouldn't close on my pin far enough to put the safety pin in the handle... I finally yanked the hitch out from under the trailer and I had caught the lube disc at an angle on the 1st try and it had ripped a gash in in. That extra misplaced material up under there was preventing me from being able to secure the pin. Aggravating: Yes. But I kinda like it. You will KNOW that there is an issue with your current hitching job with this thing. It can be unforgiving at times but when I have $80k of truck and $110k of RV depending on it, I'd rather it be unforgiving and tell me in a loud voice: "You screwed up your mount attempt, try again" than to get to the end of an entrance ramp and have the trailer come down on the truck bed. If I had to buy one again, I'd buy the same one.



- DM8550032
by:

Review from a similar Hijacker UMS in Fifth Wheel Hitch


Our Demco hitch installed with out issues. We didn't use it till the last of May, then we pulled over 3000 miles. the only issue we had was un-hitching with hitch & 5th wheel in a semi-bind, NOT the hitches fault. Totally satisfied with the unit. We have had Demco tow bars for years before our 5th wheel, so we were not surprised at the quatity of our hitch, only complaint would be better prep before painting/coating unit. thank you Phil Z


Comments
After a year, my only complaint is still paintcoating.
Phillip Z - 07/17/2017



- DM8550033
by:

Review from a similar Hijacker UMS in Fifth Wheel Hitch


The safety features of this hitch were exactly what my husband was looking for. We have a 2016 F 350 with the factory cutouts and this dropped right in and locked in with no problems. You do have to put this together which is fairly simple. The only complaint I had was throughout shipping, there were holes ripped all throughout the boxes. One of which was the one that had the nut's bolt's and washers in it and they weren't sealed in the bag that they came in so, we didn't have all of them. Many were lost but they were easily replaced at the local parts store. We haven't towed with it yet but everything should be typical with that.


Comments
Still very satisfied with the fifth wheel. Weve towed our 42ft fifth wheel with it several times without any problems with the hitch. Hopkins up and unhooking with no problems at all. We would highly recommend this product.
Leslie P - 02/26/2017



- DM8550033
by:

Review from a similar Hijacker UMS in Fifth Wheel Hitch


I haven't towed with this hitch yet so I'll update this when I do. Shipping was faster than I expected. It shipped in two boxes and both arrived at the same time and in good shape. Assembly took about an hour and was pretty straight forward. The included instructions are a bit vague but if you have just a little bit of mechanical knowledge and some tools its easy to figure out. I couldn't find any torque specs in the instructions but after doing a little research on the internet I found there isn't an actual spec, only make sure the bolts are good and tight, but not overly tight.



- DM8550032
by:

Review from a similar Hijacker UMS in Fifth Wheel Hitch


No chucking at all, easy assembly and maintenance. Drops in and out of the brackets easily and the latching handles double as carry handles. Weights a lot, and comes in multiple boxes, so be sure to tip your UPS guy! The bolts are all grade-5 hardware and torque should be standard based on diameter.



- DM8550033
by:

Review from a similar Hijacker UMS in Fifth Wheel Hitch


This hitch assembled quickly and installs easily. Many thousands of miles and zero issues. I would highly recommend ths hitch. Mush smoother and problem free than my prior hitch.


Comments
Product still works great. Been almost 2 years and many thousands of miles. Product still looks great as well. Great job Demco.
mike - 04/26/2020


- DM8550033
by:

Review from a similar Hijacker UMS in Fifth Wheel Hitch


This is better than I thought it would be. It came in three boxes and you have to put it together but the instructions are easy to follow. It is totally height adjustable so you don’t have to worry about whether it will be too short or too tall for your truck bed. Second product I bought from etrailer with no complaints.


Comments
One year down and I am going strong with several more in the future! I have no complaints with this hitch. I recommend it to everyone that asks about it. Thanks again.
Jesse - 02/17/2020



- DM8550032
by:

Review from a similar Hijacker UMS in Fifth Wheel Hitch


My son and I installed it, Works great! Thanks



- DM5996
by:

Review from a similar Hijacker UMS in Fifth Wheel Hitch


Arrived quickly and as advertised.



- DM5996
by:

Review from a similar Hijacker UMS in Fifth Wheel Hitch


Solid, rugged as promised, highly recom ended



- DM5996
by:

Review from a similar Hijacker UMS in Fifth Wheel Hitch


Extremely satisfied with this plate.....very thick and constructed well.


Comments
Quick easy in easy out...
Barbara - 02/25/2021


- DM5996
by:

Review from a similar Hijacker UMS in Fifth Wheel Hitch


Fits exactly like it is supposed to. I just received it so I haven't used it yet.



- DM8550033
by:

Review from a similar Hijacker UMS in Fifth Wheel Hitch


Another excellent product from etrailer. Already used it once and it worked great. Wouldn't go anywhere else for my towing needs.


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Ask the Experts about this Demco Fifth Wheel Hitch



  • Best Value for 5th Wheel Hitch for 2021 Chevy Silverado 2500 Long Bed With Factory Puck System
    There is definitely one 5th wheel hitch that fits your 2021 Chevy Silverado 2500 long bed with the factory puck system that stands out among the rest in regards to being the best value, and that is the Demco Hijacker UMS Double Pivot 5th Wheel Hitch # DM37VR. This hitch has a unique combination of being relatively cost-effective compared to other 5th wheel hitches but is still a very high-quality hitch. There are a number of reasons for that, starting with the jaw system. As you can see...
    view full answer...
    Image 1 for
  • What is the Hitch Height Range of Demco Hijacker UMS for GM OEM Rail Kit
    I checked with Demco and the height settings of the Demco Hijacker UMS Double Pivot 5th Wheel Hitch # DM37VR that you referenced are 16 to 19 inches separated by one inch increments.
    view full answer...
  • Does Demco Hijacker UMS DM37VR Fit Puck System of 2020 Chevy Silverado 2500 Long Bed
    First, thanks for being a repeat customer, it is definitely appreciated. And to answer your question, you do not need anything else at all for your 2020 Chevy Silverado 2500 long bed to use the Demco 5th wheel hitch; the following will fit directly into the puck system of your truck: - Demco Hijacker UMS Double Pivot 5th Wheel Hitch - Chevrolet/GMC Prep Package # DM37VR You made a great choice because the Hijacker UMS is a really nice option for a 5th wheel hitch for your Chevy. It has...
    view full answer...
  • Which Demco 5th Wheel Trailer Hitch Set-Up is Shortest Height in the 2022 Chevrolet Silverado 2500
    Since you are already using the Demco Recon 5th Wheel Trailer Hitch, # DM8550043 with above bed rails you know this height measurement for comparison. Using the Demco 5th Wheel Rail Adapter for Chevy/GMC OEM 5th Wheel Towing Prep Package, # DM6333 instead of the above bed rails sets the mounting point of the Demco Recon 5th Wheel Trailer Hitch, # DM8550043 at about 2-1/4" above the bed. Sometimes the seating of the Rail Adapter will vary within the puck system, but this is a negligible...
    view full answer...
  • Recommended Fifth Wheel Hitch for my 2021 Chevrolet Silverado 2500 6 3/4 Bed With Puck System
    You can go with a Demco Hijacker UMS Double Pivot 5th Wheel Hitch part # DM37VR and a sidewinder like the Reese Sidewinder 5th Wheel King Pin with Rotating Turret part # RP34FR depending on what your pin box is and it will work out well. The Sidewinder Wedge Kit part # RP74FR is what you will want for the puck between your fifth wheel and pin box to lock out the connection point and allow the pivot point on the Sidewinder to move. There are not currently any Curt fifth wheels designed...
    view full answer...
  • Fifth Wheel Hitch 2021 GMC Sierra 2500 6-3/4 Foot Bed with OEM Prep Pkg
    I think what you are trying to ask is where in the fore/aft of the bed will the jaw and pivot point of this hitch set, for purpose of will it work with your short bed truck. The Demco Hijacker UMS Double Pivot 5th Wheel Hitch, # DM37VR is a confirmed fit for the 2021 GMC Sierra 2500 with an 8 foot bed. This is not for the 6-3/4 Foot Bed unless you change your pin box to something like the Reese Sidewinder 5th Wheel King Pin with Rotating Turret part # RP34FR. For a short bed truck you...
    view full answer...
  • Suggestions For Helping with 5th Wheel Chucking with 2021 Forest River 2621WS Ultra-Lite
    I'll start out by saying that this is going to be fairly normal with a trailer that size and there's really not a way to completely eliminate chucking; additionally there aren't adjustments on the hitch or trailer that can be made to help curb this. However, there are components that are better suited to help reduce the effects than others and if you wanted to go about trying to reduce this as much as possible there are 2 routes you could go. Without knowing the exact hitch you're using,...
    view full answer...




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Info for this part was:

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Edited by:
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Expert Research:
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Employee Kathleen M
Updated by:
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