MP1: 5×6 Gardner Denver with Cummins
MP2: 5×6 Gardner Denver with Ford
MP3: 5×6 Gardner Denver with Perkins
MP4: 7.5×12 Gardner Denver with 671 GM
MP5: EWS446 with open 892 GM
MP6: EWS 446 with sound proof 892 GM
MP7: 7.5×10 Gardner Denver V8 with Mercedes
MP8: Gardner Denver Hydraulic
MP9: 7.5×10 Duplex Gardner Denver with Mercedes
MP10: 7.5×12 Manual Duplex Gardner Denver with Mercedes