What is the OEM “Puck” Style Fifth Wheel Hitch System?
The OEM (Original Equipment Manufacturer) “puck” style fifth wheel hitch system is a factory-integrated mounting method designed to simplify the installation of the towing system on pickup trucks. Instead of using traditional brackets and rails, it utilizes specific mounting points (pucks). The hitch’s mounting base locks into these points, creating a secure connection between the towing system and the vehicle.
In modern pickup trucks, these systems are engineered with the vehicle’s chassis, bed structure, and factory towing hardware in mind; the design allows the truck bed to remain largely unobstructed when the hitch is removed while not towing a trailer. However, the presence of these pucks does not increase the vehicle’s towing capacity. Capacity is determined by factors such as Gross Vehicle Weight Rating (GVWR) and Gross Axle Weight Rating (GAWR), and loads must remain within the specified towing limits.
In this article, we will explore the OEM puck system in greater detail.
Faster and Cleaner Fifth Wheel Hitch Installation
The primary advantage of OEM-integrated puck systems is a significantly faster installation process, allowing for setup in mere minutes. Traditional mounting rails, brackets, and extra hardware are unnecessary. By providing predetermined mounting points, OEM puck systems allow the 5th wheel hitch to attach and lock directly into place, while also greatly minimizing the need for truck bed modifications.
Another advantage is the clean appearance and added versatility. When the fifth wheel hitch is removed, the mounting openings can be filled with factory-style plugs, leaving the truck bed free of obstructions or protrusions—resulting in an empty bed. However, specific puck and plug details depend on the manufacturer’s specifications.
OEM Integration, Alignment, and Weight Distribution
One of the primary advantages of a factory-installed “puck” system is the benefit it offers regarding alignment and weight distribution within the vehicle. As is well known, when connecting a fifth wheel hitch, proper system setup, accurate calculation of the load placed on the rear axle, and precise alignment are crucial. Because OEM pucks are positioned on the truck based on calculated specifications, the 5th wheel hitch is automatically correctly positioned—both in terms of load transfer to the axle and alignment. This eliminates the need for the driver to perform complex calculations.
However, the OEM puck system does not increase the vehicle’s load-carrying capacity. The GVWR, GAWR, fifth wheel hitch rating, and towing capacity remain fixed; these limits must be observed. By adhering to these limits, one can effectively utilize the OEM mounting system.
Comparison of OEM Puck Systems and Traditional Above-Bed Rails
When comparing OEM puck systems and traditional above-bed rails, the OEM puck system—as previously mentioned—allows for faster setup, leaves more open space in the truck bed when the hitch is removed, and offers easier positioning.
On the other hand, traditional rail systems utilize rails installed across the truck bed, allowing the fifth wheel hitch to be mounted in various positions along those rails. These systems can offer flexibility when switching between different hitch setups. However, when the 5th wheel hitch is removed, the rails remain in the bed and take up space.
The right choice depends on the truck’s factory configuration, hitch compatibility, how often the hitch needs to be removed, and specific trailer requirements. In short, the pros and cons of each method should be weighed against one another.
Selecting a Compatible Fifth wheel Hitch for an OEM Puck System
Owning a vehicle equipped with an OEM puck system does not mean that every fifth wheel hitch will fit it. Before purchasing a 5th wheel hitch, drivers should verify the vehicle’s make, model, year, bed length, and OEM puck layout. The hitch must feature a base compatible with these pucks. Additionally, capacity ratings—such as pin weight and trailer weight—should be checked.
Bed length is another important factor. With short-bed trucks, the cab and trailer come closer together during tight turns; therefore, a sliding fifth wheel hitch may be a sensible choice to ensure adequate clearance. Conversely, a fixed hitch system can generally be used for long-bed trucks. If the hitch does not fit the OEM pucks directly, the issue can be resolved by using an approved adapter base. Adhering to the factory specifications for both the vehicle and the hitch helps ensure that the installation is safe, correctly positioned, and compatible with the entire system.
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