Includes pins and collar to convert Holland to Jost style top plate. This OTR Top Plate boasts added security, safety, and significant cost savings. With an improved design, the self-lubricating surface has a lubrication reservoir - allowing grease to reach all surfaces. The top plate’s heavy duty ductile cast iron gives allowance for high durability 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.