Yanmar Marine Diesel Engine Data provided by Santa Barbara Marine Diesel Mechanic. servicing, Ventura, Channel Islands & Santa Barbara. Yanmar Marine Mechanic. Specifications: Rated Output:  367 kW / 500 mhp Rated Speed:  2530 rpm Displacement:  8.710 L / 531 cu. in No. of cylinders:  6 cylinders Cylinder Bore x Stroke:  117 mm x 135 mm … Continue reading Yanmar Marine Diesel Engine Data