Contact us




Construction Machinery


Engine spare parts


Lubricant oil

Marine Engines


Features & Benefits

● The integration of crankshaft, postposition gear chamber and point-line gear-meshing patent technology reduce noise level
● Wet cylinder liner structure facilitates maintenance and repair
● Improved fuel consumption by P7100 fuel pump, P-injector and Honeywell turbocharger achieves high mean effective pressure and power density
● The use of 42CrMo forged steel crankshaft increase fatigue strength and abrasive resistance, and the torque output at front end could be more than 900Nm
● Yuchai sealing technology in piston ring and valve oil seal reduces the lube oil consumption
● High fuel efficiency and low maintenance cost
● Operator and nature friendly with low noise, rapid start ability and low emissions
● Major overhaul period is more than 12000 hours

Technical Specifications

Model YC6MJ450L-C20 YC6MJ410L-C20 YC6MJ365L-C20
Type Vertical, in-line,    water-cooled, four stroke
Intake way Turbo charging&    inter-cooled
No. of cylinders - Bore × Stroke(mm) 6-131×145
Displacement(L) 11.73
Compression ratio                                                   16.8:1
Continuous power /speed (kW(Ps)/r/min) 330(450)/2100 300(410)/1800 267(365)/1500
One-hour power/speed       
363(495)/2168 330(450)/1858 293(401)/1548
Min. specific fuel consumption(g/kW·h)
Specific oil consumption (g/kW·h) ≤0.5
Crankshaft    rotation direction (seen from power output end)                           Anticlockwise
Starting way Electrical 
Net weight(kg)
Overall dimensions (LxWxH) (mm)
Certificate ZC、CCS、IMO
Contact us Inquiry Top