Under Bed 5th Wheel Installation Kit for 2018 RAM 3500 Dually
Updated 08/22/2019 | Published 08/20/2019 >
Products Featured in This Question
Question:
I bought a new ram dually and it does not have the factory puck system installed, but does have 4 strategically placed brackets welded to the frame underneath the bed. Do you know if these are the proper brackets to be used with a Mopar diy puck kit and do you sell the Mopar kit? Are instructions available before I buy the kit? Thank you, Ken
asked by: Ken H
Expert Reply:
Thank you for taking the time to capture and send all the pictures. We do offer options for under bed 5th wheel hitch installations but none will install the same as a factory kit.
If you choose to go the aftermarket route to install your 5th wheel hitch, I have two recommendations depending on what bed length Ram 3500 you have. Included are overview and step-by-step installation instruction videos for both hitches and the rail installation kits.
If you have a 6-1/2' bed, I recommend the Demco 21K Fifth Wheel, Custom Install Kit with Below Bed Rails # DM8551006 with the Underbed Rail and the hitch itself # DM8550037. This is a particularly attractive option because the Autoslide feature allows the hitch to move freely and pivot while you make sharp turns with your 5th wheel. This saves you from having to get out of the truck repeatedly to adjust like other hitches.
If you have the 8' bed, I recommend the Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches # BWGNRK1314-5W for use with the B&W Companion 5th Wheel Trailer Hitch # BWRVK3500-5W. The adaptability of having A 5th Wheel hitch, A Gooseneck hitch, or just free access to your bed makes this a very popular option as well.
We do not offer the factory underbed puck kit.
Product Page this Question was Asked From
B&W Companion 5th Wheel Trailer Hitch - Dual Jaw - 20,000 lbs
- 5th Wheel Hitch
- Fixed 5th Wheel
- Aftermarket Below Bed Rails
- 5000 lbs Vertical Load
- 20000 lbs GTW
- Double Pivot
- Standard - Double Jaw
- 16-1/4 - 18-1/4 Inch Tall
- B and W
more information >
Featured Help Information
Instructions
Miscellaneous Media





Continue Researching
- Article: Gooseneck to 5th Wheel Adapters
- Q&A: Is The Gen-Y Hitch Nomad Pin Box GY57ND The Same Dimensions As Lippert 1621 Pin Box?
- Article: 4 Steps to Choosing Your 5th Wheel Pin Box
- Q&A: Why Is a 10" Lube Plate Recommended for a B&W Companion Instead of 12"
- Q&A: Does Truck with 6-1/2 ft bed Have to Use Slider Hitch for Turning Clearance with Fifth Wheel Hitch
- Q&A: Do I Need a Sliding 5th Wheel Hitch for a 2026 Ford F-350 w/a 6-3/4' Bed?
- Q&A: How Much Does the Head and Base Weigh for the B&W Companion 5th Wheel Trailer Hitch
- Q&A: Is B&W Slider Hitch BWRVK3775 20K Good For 2026 Silverado 2500 6-1/2' Prep Package W/ Jayco 382FLRB?
- Q&A: What Is An OEM Prep Package And How Do I Know If I Have It
- Article: Fifth Wheel Trailer Hitch Information and Installation Tips
- Article: Top Gifts for Dads in 2024
- Article: Ram Trailer Tow Prep Package
- Article: How to Adjust Your Trailer Brakes | The Ultimate Guide
- Article: Brake Controller Installation for 2007 (New Body Style) - 2013 GMC Sierra and Chevy Silverado

