QSB 5.9 Series Coolant Pump Kit- PART #5473172

Cummins Marine OEM coolant Pump. Fits QSB5.9 380HP and below engines. This also fits many 425HP model engines but depends on Serial Number, the pump switched sometime around 2008. If you have a QSB5.9 425HP we recommend you call with your serial number so we can ensure you order the correct part. Includes gasket.