YC6MK / YC6MJ (280PS – 450PS)
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.
Marine Main Propulsion Engine Specification
| Engine Model | YC6MK280L | YC6MK320L | YC6MK350L | YC6MK410L | YC6MK450L |
| Continuous Rating | 280PS (206kW) / 2,100rpm | 320PS (235kW) / 2100rpm | 350PS (257kW) / 1800rpm | 410PS (300kW) / 1800rpm | 450PS (330kW) / 2100rpm |
| Maximum Rating | 310PS (226.6kW) / 2,168rpm | 350PS (258.5kW) / 2168rpm | 385PS (283kW) / 1858rpm | 450PS (330kW) / 1858rpm | 495PS (363kW) / 2168rpm |
| Configuration | 6 Cylinder In-Line, 4-Stroke, Direct Injection, Water-Cooled | ||||
| Configuration | 6 Cylinder In-Line, 4-Stroke, Direct Injection, Water-Cooled |
| Aspiration | Turbocharged & Intercooled |
| Fuel System | Mechanical |
| Bore x Stroke (mm) | 123 x 145 | 131 x 145 |
| Displacement | 10.34L | 11.73L |
| Compression Ratio | 17.5 : 1 | 16.8 : 1 |
| Flywheel Housing / Flywheel | SAE 2 / 11.5″ |
| Weight (Kg) | 1,100 | 1,200 |
| Dimension (mm) | 1531 × 867 × 1187 | 1834 × 1028 × 1278 |
| Certificate | ZC, CSS, IMO |
