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1.The 6-hole high pressure fuel injector is combined with a w-shaped combustion chamber to optimize air-fuel mixing. Adopting an efficient fuel cooler provides economic application range in a wide power range.
2.The designs of wet alloy cast iron cylinder liner, forging reinforced crankshaft, crankshaft bearing and connecting rod bearing with strong bearing capacity, water cooled exhaust manifold and electronic monitoring instrument monitored engine running are used to ensure the safe operation and minimize downtime of the engine.
3.Optimized combustion characteristics, coupled with a turbocharger and intercooling technologies can reduce the pressure rise rate during combustion and result in soft and full combustion.
4.High precisely machined parts enables engine operation smooth with low vibration and noise.
5.With compact bore spacing, low piston compression height and integrated design of parts, all the accessories are integrated on the cylinder block, making the size greatly reduced with light weight and convenient maintenance.
| Model | D683/SC9D |
| Type | In-Line Type, Water-Cooled, 4-Stroke, Wet Cylinder Liners |
| Bore/Stroke | 114x135mm/114x144mm |
| Min. Fuel Consumption | 195g/kW.h |
| Starting Method | Electric Start |
| Firing Sequence | 1-5-3-6-2-4 |
| Noise | ≤102dB(A) |
| Crankshaft Rotation Direction (facing the flywheel) | Counterclockwise |
| Cylinder No. | 6 |
| Displacement | 8.3L/8.9L |
| Oil Consumption | 0.3g/kW.h |
| Turbocharged | CCS/IMOII |
| Flywheel and Flywheel Housing | D683: SAE2#&11.5#; SC9D: SAE1#&14# |
| Engine Overhaul Period | 20000h |
| Net Weight | 800kg/950kg |
| Dimensions (LxWxH) | 1420x837x1093mm(D683) 1476x930x1237mm(SC9D) |
| Model | Type | Displacement (L) | Rated Power(kW) | Rated Power(HP) | Speed(rpm) | Aspiration | Fuel Control System | Output Interface | Weight (kg) | Certificate | Emission |
| D683ZLCA3B | 6 Cylinders / In-Line | 8.3 | 219 | 298 | 2300 | TA | Mechanical | SAE 2#/11.5' or SAE 1#/14' | 800 | CCS | IMO TIER II |
| D683ZLCA8B | 6 Cylinders / In-Line | 8.3 | 228.5 | 310 | 2330 | TA | Mechanical | CCS | IMO TIER II | ||
| D683ZLCA9B | 6 Cylinders / In-Line | 8.3 | 259 | 352 | 2430 | TA | Mechanical | CCS | IMO TIER II | ||
| SC9D250.18CA1 | 6 Cylinders / In-Line | 8.8 | 180 | 244 | 1800 | TA | Mechanical | 900 | CCS | IMO TIER II | |
| SC9D280.18CA1 | 6 Cylinders / In-Line | 8.8 | 202 | 274 | 1800 | TA | Mechanical | CCS | IMO TIER II | ||
| SC9D280.21CA1 | 6 Cylinders / In-Line | 8.8 | 202 | 274 | 2100 | TA | Mechanical | CCS | IMO TIER II | ||
| SC9D300.21CA1 | 6 Cylinders / In-Line | 8.8 | 216 | 294 | 2100 | TA | Mechanical | CCS | IMO TIER II | ||
| SC9D320.18CA1 | 6 Cylinders / In-Line | 8.8 | 230 | 312 | 1800 | TA | Mechanical | CCS | IMO TIER II | ||
| SC9D340.21CA1 | 6 Cylinders / In-Line | 8.8 | 245 | 333 | 2100 | TA | Mechanical | CCS | IMO TIER II |
| SDEC Power Series | HP | Power Range | Series | No. of cylinders - Bore x Stroke(mm) |
Displacement (L) |
| H | 80HP~230HP | 59kW~170kW | SC4H | 4-105X124 | 4.3 |
| SC7H | 6-105X124 | 6.5 | |||
| D | 200HP~360HP | 147kW~265kW | D683 | 6-114X135 | 8.3 |
| SC9D | 6-114X144 | 8.9 | |||
| E | 300HP~600HP | 206kW~441kW | SC12E | 6-128X153 | 11.8 |
| SC13E | 6-130X161 | 12.8 | |||
| G | 250HP~550HP | 180kW~405kW | G128 | 6-135X150 | 12.8 |
| SC15G | 6-135X165 | 14.2 | |||
| K | 410HP~950HP | 294kW~700kW | SC25K | 6-170X185 | 25.2 |
| W | 825HP~1100HP | 605kW~808kW | SC33W | 6-180X215 | 32.8 |
| SC38W | 6-180X250 | 38.2 |
1.Integrated Sales & Technical Support
Full-cycle solutions for marine power propulsion systems.
2.Innovation-Driven Propulsion Systems
Designing efficient, eco-friendly, and user-centric propulsion technologies.
3.Customized Power Solutions
Tailored marine and land-based power plant designs by dedicated engineering teams.
4.Authorized Partnerships
Exclusive distributor for globally recognized brands.
5. End-to-End Service Excellence
Our highly skilled service teams, equipped with cutting-edge resources, deliver end-to-end excellence-from pre-sale technical consultation to seamless sales integration and porfessional after-sales support.
Shanghai Diesel Engine Co., Ltd. (SDEC), China's leading manufacturer of diesel engines, specializes in delivering high-performance, reliable power solutions through advanced diesel technology and stringent quality control. Established as a state-owned high-tech enterprise, SDEC has consistently grown into a globally trusted provider of diesel engines, prioritizing innovation, customer satisfaction, and operational excellence.
SDEC's product portfolio spans 7 series (G128/135, C, D, E, R, H, W) with over 300 variants, offering power outputs from 50 to 1600 HP. These engines serve diverse industries, including heavy-duty/passenger vehicles, engineering machinery, marine vessels, and mobile power stations. Complementary products include fuel systems, generator sets, and customized solutions tailored to meet specific client requirements.
Renowned for unmatched product quality, on-time delivery, and robust after-sales support, SDEC holds prestigious certifications such as ISO9001 (China's first recipient in 1994), QS9000, and TS16949. Industry accolades include the World Passenger Car Association's "Golden Award of Quality" (2002, 2005) and "Best Engine Manufacturer" (2006).
As a technical leader in China's internal combustion engine sector, SDEC continues to pioneer cutting-edge innovations while maintaining a customer-centric focus, ensuring global clients receive dependable, high-performance engines and services.
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