This check top level assembly valve is designed to fit Cummins engines K19, K38, K50, N14, and NT855. It is an essential component for ensuring the proper functioning of your engine's valve system. Made in China, this unit is of high quality and is built to last. The manufacturer part numbers for this valve are 3896027, 3071589, and 3893759. The unit quantity is one, and it is sold as a unit. This valve is compatible with other engines and components, making it a versatile part for commercial truck parts. Purchase this check top level assembly valve today and ensure the optimal performance of your Cummins engine.