G Series Marine Engine(Power range:180-361kW)
Description
The G series marine engine is a fourth-generation product which features a modular design on the basis of 3128 Xinlong marine engine designed by SDEC together with AVL. Most parts are shared with the previous generation product. The stroke of the high power SC15G engine is extended to 165mm, providing high reliability, high torque and good efficiency.
This series marine diesel engine has earned good reputation among users due to its high reliability, high torque at low speed, long maintenance interval and low use cost, etc. And it is praised as the perfect combination of power and efficiency. It is widely applicable to various inland transport ships, fishing boats, towboats, working ships and other boats, as well as marine generator sets of 180-361kW
Specification
Model |
G128/SC15G |
Type |
In-Line Type, Water-Cooled, 4-Stroke, Wet Cylinder Liners |
Bore/Stroke |
135x150mm/135x165mm |
Min. Fuel Consumption |
195g/kW.h |
Starting Method |
Electric Start |
Firing Sequence |
1-5-3-6-2-4 |
Noise |
≤108dB(A) |
Crankshaft Rotation Direction (facing the flywheel) |
Counterclockwise |
Cylinder No. |
6 |
Displacement |
12.8L/14.2L |
Oil Consumption |
0.5g/kW.h |
Certificate |
CCS/IMO II |
Flywheel and Flywheel Housing |
SAE1#&14# |
Engine Overhaul Period |
20000h |
Dimensions (LxWxH) |
1680x884x1496mm |
Net Weight |
1350kg |
Product Parameters
1.Through FEA modal analysis and coupling strength calculation, we improved designs like body strengthening and the installation of an integral cylinder head.
2.15G adopts integral non-quenched and tempered steel crankshaft to make the fatigue resistance and service life of the engine improved by 30%.
3.The combustion system is optimized. After CFD analysis, the large flow cooling pump and oil pump and new type high-efficiency pressurizer are adopted to have a minimum fuel consumption of 195g/kW.h and a maximum torque of 2300N.m. This realizes the requirements for marine engine of low oil consumption and good acceleration property.
4.After improved designs like flange fuel injection pump drive, added new type oil-gas separation device, optimized thermostat and fuel pipeline, integral heat exchanger and expansion bank and new type sealing gasket, the product quality of this G series product is improved and the visual layout is also more reasonable.
5.This G series engine adopts cracking connecting rod and core-pulling water-air intercooler. The spare parts universality with previous generation product is high, reducing operation cost with convenient maintenance.
Why Choose us?
- Competitive Pricing: 15-20% lower than market rates without compromising quality.
- Certified Quality: ISO 9001 certification, authorized Yuchai distributor & service provider.
- End-to-End Solutions: Design, production, installation, and after-sales support.
- Proven Expertise: Serving industries like marine, data centers, telecom, oilfields, hospitals, and government sectors. Clients include China Telecom, COSCO, etc.
- Global Reach: Products exported to Southeast Asia, Africa, the Middle East, and South America.
If you have any needs for our products, please click on our contact information, and we will provide you with comprehensive information on technology, business, after-sales, product configuration and other aspects in the most professional way!
Certifications

FAQ
Q1.What is your MOQ of this item?
A: 1 set
Q2. How long is your delivery time?
A:15-30 days after deposit received.
Q3: What is your terms of payment ?
A: T/T 30% in advance and TT 70% balance paid before shipment.
Q4: What is your warranty period?
A: Our payment terms is 1 year or 1500 running hours whichever comes first. But based on some special project, we can extended our warranty period.
Q5: Do you offer OEM service?
A: Yes
Q6:How is your package?
A:Package with standard export wooden case.
Company Profile

Shanghai Diesel Engine Co., Ltd. (SDEC), with SAIC Motor Corporation Limited as its main shareholder, is a large state-owned high tech enterprise engaged in research and development and manufacture of engines, engine parts and generator sets, possessing a state-level technical center, a postdoctoral working station, world-level automatic production lines and passage cars standards quality assurance system. Its former was Shanghai Diesel Engine Factory that was established in 1947 and was restructured into a stock-shared company in 1993 with shares of A and B.
In its more than 70 years'development, SDEC's products have been used all over the world. SDEC now has nine series of high-quality diesel and natural gas engines, i.e. M, R, H, D, C, E, G ,K and W series. These series engines with power outputs of 50 to 1,800 kW are mainly applied to trucks, buses, construction machinery, generator sets, marine application and agricultural equipment. SDEC is always devoting to constant improvement of product quality and striving to forge a quality-leading supplier of power solution of diesel and new energy in China.
About Cheongfa
Established in 2020, Yangjiang Cheongfa Marine and Genset Power Co., Ltd. specializes in R&D, production, and engineering of diesel genset/gas generator sets for global industries.
We deliver tailored solutions, including silent, containerized, trailer-mounted, and desert-optimized systems, alongside noise/vibration control and emission treatment technologies.
Trusted by clients like China Telecom, Tencent, and CNOOC, our products power sectors ranging from data centers and marine operations to healthcare and environmental protection.
With a footprint in Southeast Asia, Africa, South America, and the Middle East, Cheongfa guarantees reliability through end-to-end quality assurance from design to maintenance.