Includes pins and Collar to convert Fontaine to Jost style top plate. This OTR Top Plate provides added security, safety, and significant cost savings. With an improved design, the self-lubricating surface has a lubrication reservoir that allows grease to reach all surfaces. The heavy duty ductile cast iron of this top plate allows for high strength and superior ductility under stress, as well as resistance to wear and corrosion for extended life. With this high-quality, heavy duty replacement top plate, you don’t need to rebuild your old, worn-out fifth wheel.