This pipe plug is designed to fit Cummins engines K19, K38, K50, N14, and NT855. The plugs are made by the trusted manufacturer S903 and are made in China. They are compatible with a variety of unit types and are sold as a unit quantity. These pipe plugs are perfect for those in need of commercial truck parts. The manufacturer part numbers are 69901 and S903. Purchase this set for a reliable and efficient fit for your Cummins engine.