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The CAMC high-power 11.81L diesel engine adopts an inline six cylinder, four valve, and four stroke design, tailor-made for optimizing ship power systems. With advanced structural design and efficient performance, it has become the preferred power solution for inland ships and offshore operation platforms. It has been exported in batches to multiple countries and regions around the world, demonstrating CAMC's technical strength and international competitiveness in the field of ship power. Its core structure integrates a top mounted camshaft, an integral cylinder head, and a symmetrical gantry cylinder block. The layout of the rear gear chamber increases transmission efficiency by 15%; Innovative application of double-layer water jacket cooling technology improves heat dissipation performance by 30% compared to traditional designs. Combined with deep skirt cavity structure and symmetrical cylinder block, it achieves uniform stress distribution and overall high strength, ensuring stable operation of ships under long-term harsh working conditions. The piston system optimizes the internal cooling oil circuit and applies high-temperature refractory materials to balance strength and thermal management requirements. The overhead camshaft design simplifies the transmission chain, and can output a maximum power of 353kW at 1800r/min. At the same time, the fuel efficiency is improved by 12%, combining reliability and efficiency, and fully adapting to the core requirements of ship power.
| Model | CM6D28C.353.20 | CM6D28C.350.20 |
| Type | Six-cylinder,in-line,water-cooled,In-cylinder direct injection | |
| Intake way | Turbocharging | |
| One of cylinders-Bore X Stroke (mm) | 6X128X153 | |
| Displacement (L) | 11.81 | |
| Compression ratio | 17±1 | |
| Rated power/speed (kw(Ps)/r/min) | 321/1800 | 318/1500 |
| One-hour power/speed (kw(Ps)/r/min) | 353/1800 | 350/1500 |
| Min specific fuel consumption (g/kw*h) | <190 | <198 |
| Oil fuel consumption ratio (%) | <0.1 | |
| engine oil capacity (L) | 37L | |
| The min steady operation speed (r/min) | 600 | 1500 |
| Crankshaft rotation direction (see from power output oriented) | Anticlockwise | |
| starting way | Electrical | |
| Net weight (kg) | 1265 | |
| Overall dimensions (length X width X height) (mm) | 1780X984X1388 | |
| Certificate | CCS,IMO | |
Your Problem → Our Solution
What Makes This Engine Stand Out?
Card 1: Built For Heavy Work
Type: Inline 6-cylinder turbocharged diesel
Power: 300–500 HP (tunable to your vehicle’s needs)
Durability: Reinforced cylinder block → 10,000+ hours before major overhauls Perfect for CAMC H7 tractors, long-haul trucks, or mining machinery
Card 2: Global-Ready
Emissions: Euro VI / China VI (compliant with EU, GCC, SASO rules)
Compatibility: Factory-fit for CAMC vehicles; custom brackets for other brands
Support: 20+ overseas parts warehouses → 3–7 day delivery for filters/gaskets Card 3: Low Total Cost of Ownership
Card 3: Low Total Cost of Ownership
Who Needs This Engine?
Fleet Owners: Power CAMC H7 tractors for Middle East/African long-haul routes
Machinery Operators: Equip excavators/loaders for mining/infrastructure projects
Vehicle Builders: Custom-fit to buses/trucks for regional markets
1. Director of Operations for an inland ship in Southeast Asia: “Our main business is inland ship transportation, and the CAMC 11.81L diesel engine fully meets the power needs of ships. The inline six cylinder design has abundant power, with a maximum power of 353kW to meet heavy load navigation. The layout of the rear gear room is efficient in transmission, and the double-layer water jacket cooling technology has excellent heat dissipation, which can maintain stability even under long-term high load operation. The fuel efficiency has increased by 12%, greatly saving operating costs. It has been widely used in our ships. ”
2. The procurement manager of a certain offshore operation platform in the Middle East said, “Offshore operation platforms have extremely high requirements for power reliability and heat dissipation. This diesel engine performs outstandingly, with a simplified maintenance of the overhead camshaft, a deep skirt cavity structure to ensure stable operation, obvious advantages in heat dissipation and fuel economy, and perfect adaptation to complex offshore working conditions. It is the core power equipment of our operation platform. ”
CAMC International Co., Ltd. is a core subsidiary of China Machinery Industry Corporation, deeply cultivating the global market and focusing on overseas promotion, technology output, and supporting services for heavy and special vehicles. Relying on the strong industrial accumulation, complete industrial resources, and national level R&D platform advantages of the parent company, the company has strong capabilities in product iteration, scale intelligent manufacturing, and project implementation. It is a key research and production base for heavy-duty vehicles and core components in China.
The company's headquarters is located in Huashan District, Ma'anshan City, Anhui Province, with a complete intelligent manufacturing production line and a mature full chain supply chain system. Relying on leading manufacturing processes and strict quality control standards, the company has built a rich and comprehensive product matrix, covering a full range of commercial vehicles such as tractor trucks, engineering dump trucks, and various specialized special vehicles. It can fully adapt to diverse application scenarios such as mainline logistics, infrastructure engineering, special operations, and cross-border transportation, and adapt to complex global working conditions with stable and reliable product performance.
Based on the global development strategy, CAMC International has always focused on overseas market layout, deeply cultivating key overseas regions such as Southeast Asia, the Middle East, Africa, and Latin America. With high reliability and cost-effectiveness, its products are exported to multiple countries and regions around the world, accumulating a good international reputation and stable customer resources.
As a high-end equipment manufacturing enterprise supported by the state, the company has always adhered to the development concept of "technological innovation as the core, quality priority as the foundation", continuously optimized product performance, upgraded production processes, and improved overseas service system. It is committed to providing one-stop, highly adaptable, and cost-effective professional transportation solutions for global customers, and continuously empowering Chinese high-end manufacturing brands to go global.
Q1: What is the recommended maintenance interval for the marine diesel engine?
For standard inland and coastal marine operations, routine oil and filter replacement is recommended every 200 working hours. A comprehensive overall inspection covering the cooling system and turbocharger is required every 800 working hours. Maintenance cycles can be appropriately shortened under extreme working conditions such as frequent heavy loads and harsh marine environments to ensure stable engine performance.
Q2: Can this diesel engine be retrofitted to old vessels?
Yes, it supports retrofitting for most old ships. Featuring a compact internal structure and modular integrated design, the engine adapts to most existing old ship cabin spaces and installation conditions. To ensure perfect matching and smooth installation, we suggest confirming the exact installation dimensions and interface specifications with our professional technical team before retrofitting.
Q3: How does the automatic turbocharging system perform under low-load conditions?
The equipped automatic turbocharging system features intelligent adaptive adjustment. Under low-load working scenarios such as light cargo and calm water navigation, it will automatically reduce turbocharging pressure to optimize fuel economy. It maintains smooth and stable engine operation throughout the process, effectively avoiding unnecessary energy consumption and greatly improving overall operating efficiency.
Q4: Is the engine compatible with low-sulfur diesel for ECA compliance?
Absolutely. This marine diesel engine is specially designed and optimized for low-sulfur marine diesel. It fully meets the emission standards of global coastal Emission Control Areas (ECAs), supporting environmentally friendly and compliant navigation for marine vessels.
Q5: What are your acceptable payment terms for marine engine orders?
We adopt flexible and secure international payment terms to accommodate global clients. The standard terms are 30% deposit in advance and 70% balance payment before shipment. Irrevocable sight L/C is also acceptable for long-term cooperative customers to ensure safe and standardized trade procedures.
Q6: What is the standard production and delivery lead time?
The regular delivery cycle is 30-40 working days upon receipt of the confirmed deposit. For bulk orders or customized marine engine solutions, we will provide a detailed production schedule and ensure punctual delivery as scheduled.
Q7: What shipping methods are available for marine diesel engines?
We provide professional shipping solutions tailored to engine size and weight. Available options include standard container shipping, flat rack container transportation, bulk carrier and ro-ro shipment. All goods are well-packed and fixed to avoid damage during long-distance maritime transportation.
Q8: Can you provide full set of certification documents for customs clearance?
Yes. We can supply complete official documents including factory qualification certificates, engine test reports, CE certificates, bill of quality and origin certificates. All documents comply with international customs clearance standards and can support smooth import and customs declaration in most countries.
Q9: Do you provide long-term spare parts supply?
We guarantee stable and long-term spare parts supply for all our marine diesel engines. Original spare parts are in sufficient stock, supporting fast global delivery. Customers can purchase accessories directly from our factory with competitive factory prices and short lead time to minimize vessel downtime.
Q10: Is customized service available for special marine working conditions?
Customization is supported. We can adjust engine parameters, cooling systems, mounting structures and auxiliary configurations according to customers’ vessel type, water area environment and special operating needs. Our professional technical team provides one-stop customized solution services.
