This water pump pulley is designed to fit Cummins engines K19, K38, K50, QSK, NT14, and NT855. It is made from high-quality materials and is compatible with OE/OEM part number 3025861 and manufacturer part number 3025861. The pulley is perfect for those looking to upgrade their water pump system and ensure optimal performance. It is easy to install and comes with all the necessary accessories. Purchase this water pump pulley today and experience the difference it can make for your Cummins engine.