YC4D Marine Diesel Engine Technical Parameters ModelYC4108CTypeVertical, in-line, water-cooled, 4-strokeIntake wayNatural aspirationmm No. of cylinders X Bore X Stroke4×108×115Displacement L4.214Compression ratio17:1Continuous power /speed(kW/r/min)40/1500One-hour power/speed(kW/r/min)Main machine44/1548Ancillary machine44/1500Min. specific fuel consumption(g/kW·h)≤200Specific oil consumption (g/kW·h)≤0.8Crankshaft rotation direction (seen from power output end)counterclockwiseNet weight (kg)370Overall dimensions (LxWxH) (mm)986×730×948Matched reduction gearboxHangzhou Qianjin Gearbox (models MB142, 40A, MB170, MBS170 etc.)Specification of connection with the gearboxCasing: SAE3# Flywheel: 11.5"Overhaul period> 10000 hours