This pressure regulator plunger is a crucial component for Cummins KTA19, KTA38, KTA50, NT855, and QSK units. Manufactured in China, this unit is of high quality and built to last. The unit quantity is one and it is suitable for commercial truck parts. The manufacturer part number is 3021618. This pressure regulator plunger is designed to regulate the pressure in your Cummins engine. It is an essential part for keeping your engine running smoothly and efficiently. With its high-quality construction and durability, you can be confident that this pressure regulator plunger will last for years to come.