To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.
The Demco Premier Series Above-Bed Base Rails and Custom Installation Kit makes setting up for fifth-wheel towing quick and clean. The custom-fit brackets mount to existing holes in the frame, so there’s no drilling required. That means less time under the truck and no need to cut into the frame. The brackets mount beneath the bed, providing solid attachment points for the above-bed rails while keeping the frame strong and tidy.
The base rails use the industry-standard mounting pattern, so you’re not limited to one brand. They’ll take hitches from Demco (manufactured after 2012), B&W, Curt, Draw-Tite, Hidden Hitch, Husky, Reese, and Valley. That flexibility makes it easy to reuse an existing hitch or swap later without changing your rail kit.
Every component in this kit is made from sturdy, black powder-coated steel that resists corrosion. The finish holds up well against moisture and road grime, keeping the rails and brackets in good shape over time. The kit includes two base rails, all mounting brackets, and the hardware needed for a secure install—everything required to create a dependable fifth-wheel mounting foundation.
Customer Satisfaction Score:
97% were satisfied with this product
3% of customers were not satisfied
Ratings & Reviews
Good quality product
Was easy to install. Only took a couple hours.
Works great!
Great folks! The only issue I have is it was delivered with the box busted.
Worked out great! Installed this product a year ago. No issues.
Product came timely and great shape e trailer very helpful getting order correct worked as intended
#1 customer service and as ordered.
The best customer service from Paula, very knowledgeable.
All bolts, washers and nuts did not arrive with kit.
Mike L.
3/10/2026
I'm sorry that happened, I'll handle that for you and get that missing hardware to you.
I recently called Diana at etrailer and requested a product for a brand new dodge ram that know one else could locate. Without hesitation she new exactly what I needed and told me so right away without putting me on hold or anything, great job Diana and great products you guys have. Keep up the good work
The product was in good order. The install is somewhat difficult. The backside driver and front side passenger is easy to install. The drivers front and rear passenger is the most difficult. It would be helpful if the template was sent with the package so that you could layout the bed and drill everything from the top. Because you can't get to the front drivers side from under the truck. It took me 3 hours to install this product. One last comment is that there are 2 bags of nuts, bolts and bushing but you have to figure out what ones to use. If you know the make and model of the truck why can't the correct bolts and all of the accessories be put in the box.
Haven't used this yet, but believe it will be terrific for lifting my Demo 5th wheel hitch to move to another truck. Purchased my Demo hitch also from Etailer.com, they are fast shipping, let you know exactly what you need for your particular vehicle. I would recommend them highly for any of your camper & auto and RVing needs!
This is my second order for my second truck. I couldn't be happier with the pricing, service, delivery time, and courteous people.
Rick S.
10/13/2020
Great, very happy.
Product fit exactly as advertised and the installation video on etrailer's website was a great help in the installation since the installation directions that came with the kit was not very informative. I hope etrailer continues to provide installation videos for products they sell and I will definitely but from them again.
Thanks etrailer.
The Demco slider hitch I purchased with you bed kit is truly a phenomenal piece of equipment. I’ve had many questions about my hitch to which I’d recommend to any and everyone. This is my first fifth wheel and my first experience with pulling a fifth wheel. It’s truly amazing how it operates
The new lower base for the Demco hitch arrived on Tuesday via Freight it was a great interaction the driver I actually knew from a previous delivery, me and a friend were able to lift the old one out of the bed of my truck and install the new one today and all I have to say is...
PERFECT FIT!
It appears that Demco has already redesigned the lower base compared to my original one to prevent this problem from happening again. I was actually kind of shocked to see that upgrade and change.
I cannot say enough good words about you with E-Trailer and Demco working with me to get this problem solvedm Yes it took a little bit of work, ultimately this time we got it. I cannot thank you guys enough.
My friend and I will be finalizing the installation and getting it locked down to the bed with a few custom spacers for the lower rails this weekend.
Here are a few pictures of the installation resuming. If I remember , when I finally pick up my new camper, I'll send some pictures along too. Have to give credit where credit is due . Not sure of you have a customer wall at HQ. I know we had one in my old shop.
Anyway.. thank you again .
Just received wont be installed till Monday, but the customer service when ordering and the shipping was awesome. Will update when installed and I pull my new camper home (50miles) with pics
Jeff
10/9/2022
Just as I had hoped, great
Do you have a question about this 5th Wheel Hitch Rail?
Info for this part was:
At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Steven R.
9/6/2021
Still working great!