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This custom underbed rail kit mounts beneath the bed, so when the hitch is removed you’ve got a clean, open surface to use like normal. The four mounting holes sit flush with the bed floor, leaving no bulky rails or brackets in the way. It’s a great setup if you haul cargo when you’re not towing and want full use of your bed space.
The no-drill frame brackets bolt right to the outside of the truck’s frame rails, cutting down on install time and eliminating extra holes. The crossmembers sit on top of the frame rails under the bed, creating a strong foundation for your Demco Underbed Mount Series (UMS) 5th-wheel or gooseneck hitch. It’s a solid, straightforward design that goes in clean and stays tight.
Every piece of the kit is built from durable black powder-coated steel to stand up to the elements and resist corrosion. The sturdy rails and included mounting hardware give you confidence that your hitch connection points are secure for the long haul. The kit is backed by a 5-year limited warranty, adding peace of mind to the setup.
Customer Satisfaction Score:
90% were satisfied with this product
10% of customers were not satisfied
Ratings & Reviews
It arrived in two days. Great delivery.
Once I mounted everything and figured out I had to switch passenger and drivers brackets everything was fine it worked out ok
This product is nice but doesn’t line up with OEM placement of pucks.
First package was destroyed in shipping, all hardware was missing, called etrailer forgot her name ( sorry ) very polite. she ordered all the correct hardware needed and had it shipped out. Except for the shipping was very pleased with etrailer.
Kit made for my rig and fit as described. Installation a little on the difficult side for your typical DIY'er.
Kirk C.
7/26/2020
The under bed kit is the best. Having the truck bed useful when not traveling is great. I use a small electric hoist and casters for lifting and moving so the weigh is no problem. Installation was a little on the difficult side but any experienced DIYer can handle it.
Merchandise arrived in good condition. Nothing missing. The shipping carton was in terrible condition. It was torn open from shipping, however nothing was missing or damaged . The product will fill my needs to replace the above bed rails that don't leave a clean bed when fifth wheel is removed. This will fill the bill. Thanks to Etrailer this will work perfectly for my Demco hijacker fifth wheel. Shipment was quick delivery.
The instructions provided with the hitch were very detailed and provided enough information for me to install it myself. I love having the mounting rails below the bed. the auto slide worked flawlessly. For the winter I left the hitch coupled with the trailer to keep my bed clear.
Arrived right on time, Sales associate very knowledgeable and completed my order with Ease.
Do you have a question about this 5th Wheel Hitch Rail?
Info for this part was:
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Sierra K.
8/23/2021
That is because this product only fits vehicles without The OEM Prep Package. You want something like this: Item # DM6194.