This temperature switch is a must-have for anyone who wants to ensure their Cummins engine stays at the desired temperature. It is designed to fit perfectly with K19, K38, and NT855 models, making it a versatile option for commercial truck owners. The switch is made in China and comes with a manufacturer part number of 4327017, 3056353, and 3408627. The unit type is a single unit, and the unit quantity is one. It is ideal for those who want to replace their old or faulty temperature switch without worrying about compatibility issues.