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Demco 5th Wheel Rail Adapter for Ram OEM 5th Wheel Towing Prep Package - 25,000 lbs

Demco 5th Wheel Rail Adapter for Ram OEM 5th Wheel Towing Prep Package - 25,000 lbs

Item # DM6099
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Use your standard, above-bed fifth-wheel trailer hitch with your Ram factory, underbed 5th-wheel towing prep package. Adapter mounts in factory sockets and supplies mounting rails in your truck bed for attaching your hitch. 1-800-496-5010 to order Demco accessories and parts part number DM6099 or order online at Free expert support on all Demco products. Guaranteed Lowest Price and Fastest Shipping for Demco 5th Wheel Rail Adapter for Ram OEM 5th Wheel Towing Prep Package - 25,000 lbs. Accessories and Parts reviews from real customers.
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  • Reviews (155)
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2019 Ram 3500 - Demco 5th Wheel Rail Adapter for Ram OEM 5th Wheel Towing Prep Package - 25,000 lbs

  • Fifth Wheel Installation Kit
  • Rail Adapter
  • Demco

Use your standard, above-bed fifth-wheel trailer hitch with your Ram factory, underbed 5th-wheel towing prep package. Adapter mounts in factory sockets and supplies mounting rails in your truck bed for attaching your hitch.


  • Converts your factory-installed, underbed 5th-wheel mounting kit from Ram to standard, above-bed 5th-wheel base rails
    • Lets you use your 5th-wheel trailer hitch that attaches to standard, above-bed rails
  • Mounts to OEM pucks (or sockets) in your truck bed
    • Unit drops into pucks and locks in place
    • No drilling or welding required
  • Rust-resistant black powder coated steel construction
  • Made in the USA


  • Application: Ram trucks with OEM, underbed base rails
  • Maximum capacity: 25,000 lbs
  • Adapter will add 1-3/8" to height of hitch
  • Weight: 86 lbs
  • 5-Year warranty

This adapter is perfect if you want to use your standard fifth-wheel trailer hitch with your Ram truck's factory-installed, underbed fifth-wheel mounting kit. Just mount the adapter in your underbed rails using the integrated pucks and lock it place. Now you have the standard, above-bed base rails needed to install your fifth-wheel hitch.

6099 Demco Dodge Ram Truck OEM Adapter for Attaching Standard Fifth-Wheel Trailer Hitches

Installation Details DM6099 Installation instructions

Customer Reviews

Demco 5th Wheel Rail Adapter for Ram OEM 5th Wheel Towing Prep Package - 25,000 lbs - DM6099

Average Customer Rating:  4.8 out of 5 stars   (155 Customer Reviews)

Use your standard, above-bed fifth-wheel trailer hitch with your Ram factory, underbed 5th-wheel towing prep package. Adapter mounts in factory sockets and supplies mounting rails in your truck bed for attaching your hitch.


Demco auto slide hitch works very well with my crew cab short bed Ram. Fits under my tonneau cover nicely. Trouble free thus far. Had to purchase a Demco plate for the camper to make the Rhino box hitch work. etrailer personnel were great in helping ensure I had the right products and kept me well informed of shipping dates.

Dodge Ram Pickup

Works Excellent for Ram Trucks with Factory 5th Wheel Prep Package!

2018 Dodge Ram Pickup

This is an excellent product. It arrived 1 day after ordering it. It had very good instructions that were easy to follow. It only took me 20 minutes to install. It fit tight, but perfectly. It will be the perfect base for the Demco autoslider that I'm going to put on it. I'm using it in my 2018 Ram 2500 Crew cab to pull a Keystone Cougar Half ton fifth wheel.

It works fantastic! Easy to install for towing 5th wheel and then easy to remove to have complete, open bed for hauling.
Charles - 06/01/2019


The truck bed rail adapter required moving two of the shims for a proper fit, but this was done fairly quickly. Once the shims were moved, the part fit properly into my truck bed. The next step (adding the Auto Slide 5th Wheel Hitch) into the rail adapter went off without any problems. I would definitely recommend having two people to move the hitch into place, or have an overhead hoist to help to install the hitch. It is heavier than I expected but it fit perfectly into the bed rail adapter.


fast shipping. item got here a day early.
was lucky. everything fit in place. installation was very easy.
its mated to a Super Glide 2900 slider hitch sitting in a 2016 Ram 3500 Mega Cab dually.

after 1 year, the hitch adapter is still looking good. no paint chipping, no rust. still pulling strong.
Andrew - 09/20/2020


It works as advertised. However, it adds bulk / weight but unfortunately it is required because the autoslider hitch I purchased does not come custom all-in-one for my 2020 Ram 3500 OEM puck system.


The base needed slight adjustments in order for the lever to properly turn and the clips to set properly in the puck system. However, with the slight adjustments, the install was easy and I was able to do it with the help of my father. Just remember to lubricate the puck system so that you can remove the hitch without issues when it’s time to take it out.


It was easy to install i will be ordering other things from you guys when it comes to my fifth wheel toy hauler

Its doing good Im looking to up grade my fifth wheel hook up
Maurice H - 10/27/2021


You were a great help in guiding me to the correct hitch for my Dodge shortbed. Thank you very much. Have towed in somw tight places and no problem with backing up and 90 deg angle.


This is a well built product. Can't go wrong with this setup. Easy as 1,2,3 no tools required, just a little muscle. Weight 70 lbs.


Rail adapters have worked out perfect for my truck


A BIG THANK YOU to Jenny and her crew at I had originally bought this puck rail adapter from Amazon and I did not take the poor reviews to heart. My mistake. On a time crunch and missing parts later, I realized I should have gone with etrailer earlier. They are a reputable business and they had AWESOME customer service and fast delivery. Jenny kept me updated on the shipment and even sent a follow email once the adapter showed delivered in their system!!!! I learned my lesson and should have done it right the first time and gone with etrailer (and they had it for the same great price). The adapter was super easy to install. Thanks again, Corey (life long customer from now on).


After minor adjustments installation was ok. Instruction were clear. My pullrite superglide fit perfectly. Thanks for this great product and etrailer I am going to have a great camping season.

Dodge Ram Pickup

The rail adapter arrived at my home in excellent shape although the cardboard box it came in was coming apart. All the parts and instructions were there. Mounted the rail in Ram Truck in about five minutes. Fit perfectly and solid. My draw Tite 5th wheel hitch also fit the plate perfectly. I have pulled my camper with this setup and everything seems to be as it should. The plate is robust and we'll manufactured. Very happy with the product and etrailer!

2021 Ram 2500

High quality made and fits into the pugs with no problem. Well worth the 560.00 dollars! Thanks, Skip Vaughan

Milton - 08/10/2022


It's a good quality produce built well. It's heavy but that just gives you confidence when you hit those unions where the bride engineers and the road engineers didn't agree.


This was the greatest thing to have. I upgraded trucks and my hitch would not fit without this plate. Called and spoke to a rep and they hooked me up with this adapter. Didn’t have to spent a fortune on a new hitch.


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!


etrailer was great! Although this 5th wheel rail adapter weighs about 90 pounds, it was delivered in just a few days and two days sooner than originally estimated. etrailer support was also good and it’s very nice to see the estimated wait time posted in real time on their website. The Demco product is very heavy duty and well made, however I had two pretty big issues to work around. The first is that only with great luck will this 90lb adapter simply drop into the four puck mounts. After much time spent trying to do so, I loosened the four socket/post assemblies and with the extra play it became easy to get the adapter seated. It would have been perfectly normal to do this earlier, but there is no mention in the instructions that this may be necessary. It would also have been helpful if the instructions stated the when the adapter is fully seated, it should sit slightly above the bed floor. (I called Demco to verify this.). The second significant issue I had was that for my truck, a RAM 2500, three of the four levers on the sockets were too tight to turn without tapping a LOT with a hammer. The instructions do say that one or two shims can be removed to loosen the fit, however the (unspecified) locknut is 1-?”, torqued high and I didn’t have tools for that job. I suppose that a hitch/trailer service garage would know about these issues and have the tools at the ready, but for a one-off DIY job it could have been much faster and easier with better/more complete installation instructions.

Dodge Ram Pickup

Worked as designed. No issues, worked perfectly to my 2021 Ram 3500 with factory pucks.


I have researched purchasing a "Sliding Fifth Wheel" extensively. Researched the few that are on the market. Without a doubt hands down the very best designed & fabricated unit for the job is the "Demco Model #6107 21K Autoslide. The workmanship on design & build is "Impeccable" second to none! Secondly when I decided to purchase this unit I went with "etrailer". Paula at etrailer knew this product "Inside & Out". She answered all my questions and gave additional info on this 5th. wheel. It was delivered exactly when she said it would and it was secured to a wooden pallet and every piece was packed the tightly and shipping foam to protect it. Upon opening all the exterior shipping protection material it looked even better then on the computer screen. I am more then happy with this slider and the personable service Paula and etrailer provided. Thanks Again Paula.


Hitch installed Easily and took only 15 Min.

Fit was great. Thank you for the great advice on this product.

2018 Ram 2500

Great product and I'd buy it again. The only reason I'm giving it four stars is due to powder coating inside two of the holes. One I was able to scratch away at with a pick and get the bolt to thread, the other I ended up getting by undoing what I had installed, lifted the thing up, and threaded it in from underneath all the way through to clear it out. I do not have a tap and die set. If you buy this, I'd recommend checking to make sure the bolts go in every hole prior to installing it, to save on time.


Works great, ai would have given it a 5 but the paint finish on the welds could be better, getting rust water stains from around them.


Item was a perfect fit and allowed me to reuse an existing 5th wheel hitch.

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