Engine Assembly: 1. Cummins B4.5 diesel engine 2. Genuine cummins parts 3.Cummins assembly ... A, B3.3, B3.9, B4.5, B5.9, C8.3, M11, QSB3.3, QSB4.5, QSB6.7, QSC8.3, QSL8.9 ... 31 -- 60HP B3.3: 60 -- 85HP B3.9: 95 -- 125HPB4.5: 80 -- 99HP B5.9: 130 -- 200HP C8.3: 185 -- 300HPM11: 280 ... -- 350HP QSB3.3: 80 -- 110HP QSB4.5: 109 -- 170HPQSB6.7: 133 -- 275HP QSC8.3: 205 -- 305HP ...