Home » Products » Other Machinery » MARINE DIESEL ENGINE » Marine Diesel Engine YC4D Series
- This series engine development with Germany marine technology.
- Cylinder block, head use high strength alloy to cast manufacturing, better rigid, with integral type crankshaft & sliding bearing.
- Overhaul period is more than 10000 hours.
- With YUCHAI proprietary piston ring seal technology & valve seal technology.
- Lubricating oil consumption is lower than domestic power transmission products with more than 50%.

Model | YC4D120Z-C20 |
Type | Vertical, in-line, water cooled, four-stroke |
Intake way | Turbo-charged |
No. of cylinder - bore x stroke (mm) | 4 - 108 x 115 |
Displacement (L) | 4.214 |
Compression ratio | 17:01 |
Continuous power/speed (kW(PS)/r/min) | 90(120)/3000 |
One-hour power/speed (kW(PS)/r/min) | 99(135)/3096 |
Min Specific fuel consumption (g/kW.h) | Less than 198 |
Specific oil consumption (g/kW.h) | Less than 0.5 |
Crankshaft rotation direction (see from power output end) | Anticlockwise |
Starting way | Electrical |
Overall dimension (LxWxH) (mm) | 1043 x 741 x 1099 |
Net weight (kg) | 390 |
Matched reduction gearbox | MB170, MBS170 |
Fly wheel size | SAE 11.5 || SAE 3 |
Certificate | ZC |