This pressure regulator plunger, with model number 3627927, is designed to fit Cummins KTA19, KTA38, KTA50, NT855, and QSK engines. It is a unit type product, manufactured in China, and comes in a quantity of one. Ideal for use in commercial truck parts, this plunger is a great addition to your engine components. It ensures that the engine runs smoothly and helps regulate the pressure to prevent any damage. This high-quality pressure regulator plunger is the perfect replacement for your old or damaged part. Get yours today and keep your engine running like new!