... Plus, B4.5, ISB CM2150, ISB CM850, B Gas International, B3.9, QSB4.5-30, B Gas Plus, QSB6.7 CM850, ISDe CM2150 ... , 4B, ISBe CM2150, QSB5.9-30, ISB CM550, ISBe4 CM850 ... Cylinder), QSB4.5 CM850, B5.9, ISBe CM850, QSB3.9-30 oil pump applicable for cummins engine