Marine diesel engine Model:495C Rated output:20kw or 28kw speed:1500rpm or 2000rpm bore:100mm stroke:125mm pressure ratio:19:1 air intake type: Natural max fuel consumption:<=258.4g/kw.h max oil consumption:<=2.04g/kw.h cooling mode:forced water cooling starting mode:electric starting oil cooler: sea water direct cooling print: greey customer can choose sea water pump and CCS certificate. Gearbox: reduction ratio from 1.5:1 to 8:1.