CURT Replacement Ram 2500, 3500 Puck System 5th Wheel Adapter with Standard Rails, 25,000 lbs Model 16042CURT Replacement Ram 2500, 3500 Puck System 5th Wheel Adapter with Standard Rails, 25,000 lbs Model 16042 The CURT OEM puck system 5th wheel adapter for Ram pickups combines the functionality of CURT 5th wheel puck system products with the strength and convenience of the truck bed puck system. The adapter provides a set of industry standard 5th wheel rails to securely mount a CURT 5th wheel hitch or roller into the bed of your truck. It is designed to