This injector cup designed to fit Cummins engines K19, K38, K50, QSK, NT14, and NT855. These cups are made in China and are a great addition to your heavy equipment parts collection. This injector cup is compatible with a variety of heavy equipment parts and accessories, making them a versatile choice for any business or industrial application. Whether you're in need of a replacement cup or simply want to upgrade your injection system, this set is a reliable and cost-effective option.