Products
Power range：267kW~368kW
Applications：800~1,600t inland transport ship, 18~28m fishing boat, cruise ship, etc.
It is equipped with digital intelligent local and remote monitoring instruments and integral cast iron fresh water cooling jacket exhaust pipe, ensuring lower cabin temperature and safer use. Its integral crankcase, rear gear chamber and advanced point-line meshing gear technology make its noise lower and offer its customers greater comfort than similar domestic products.
The optimized fuel injection pump makes its fuel consumption index far superior to that of domestic products at the same power level. The application of the four-valve technology ensures substantially increased flow area of intake and exhaust, and the central fuel injector enables more uniform atomization and more complete combustion. The valve oil seal is added using Yuchai's proprietary piston ring seal and valve oil seal technologies, making the consumption of lubricating oil above 50% less than that of domestic products at the same power level.
Following the demanding specifications for mechanical development verification, all products have been subject to more than ten verifications during R&D, such as deep thermal shock tests, high-temperature, and alpine-cold tests, and crankshaft fatigue tests; The maximum torque of external characteristics reaches 2,150 N·m; The product is developed reliably using European technology and in-depth and generalized mechanical development procedures, enabling an overhaul period of the engine of over 12,000 hours.
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Item |
YC6MJ Series marine diesel engine |
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Model |
YC6MJ365L-C23 |
YC6MJ410L-C23 |
YC6MJ450L-C23 |
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Number of cylinders - bore × stroke (mm) |
6×131×145 |
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Displacement (L) |
11.73 |
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Number of valves per cylinder |
4 |
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Induction system |
Turbocharged & intercooled |
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Rated power/speed (kW(Ps)/r/min) |
267（365）/1500 |
300（410）/1800 |
330（450）/2100 |
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Overload power/speed (kW(Ps)/r/min) |
293.7（400）/1548 |
330（450）/1858 |
363（495）/2168 |
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Min. specific fuel consumption of external characteristics (g/kW·h) |
≤188 |
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Certificates |
ZC、CCS、EIAPP、China II |
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Diemension (L×W×H) (mm) |
1834×1028×1278 |
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Dry weight (kg) |
1200 |
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Large displacement, high gradeability and high efficiency
Bosch high pressure common rail (HPCR) fuel injection system with the injection pressure up to 1,600 bar, achieving multiple injections and accurate control
High-strength alloy cast iron cylinder head
General engine block + independent crankcase
Long B10 service life design, which can be more than 500,000 km
Reduction soft meshing starter, ensuring smooth start
A framed engine body structure, ensuring good rigidity and small vibration
Damping gear
It is equipped with digital intelligent local and remote monitoring instruments and integral cast iron fresh water cooling jacket exhaust pipe, ensuring lower cabin temperature and safer use. Its integral crankcase, rear gear chamber and advanced point-line meshing gear technology make its noise lower and offer its customers greater comfort than similar domestic products.
The optimized fuel injection pump makes its fuel consumption index far superior to that of domestic products at the same power level. The application of the four-valve technology ensures substantially increased flow area of intake and exhaust, and the central fuel injector enables more uniform atomization and more complete combustion. The valve oil seal is added using Yuchai's proprietary piston ring seal and valve oil seal technologies, making the consumption of lubricating oil above 50% less than that of domestic products at the same power level.
Following the demanding specifications for mechanical development verification, all products have been subject to more than ten verifications during R&D, such as deep thermal shock tests, high-temperature, and alpine-cold tests, and crankshaft fatigue tests; The maximum torque of external characteristics reaches 2,150 N·m; The product is developed reliably using European technology and in-depth and generalized mechanical development procedures, enabling an overhaul period of the engine of over 12,000 hours.