applicable for cummins engine: mechancial engine B type Technical parameter: (water pump speed): ... .7 CM850, ISDe CM2150, 4B, ISBe CM2150, QSB5.9-30, ISF3.8, ISB CM550, ISBe4 CM850 (6 Cylinder), ISBe CM800 (6 Cylinder ... .9, ISBe CM850, QSB3.9-30 water pump applicable for Cummins engine