Product Overview
Four Stroke Marine Diesel Engines are water-cooled, in-line marine propulsion engines featuring a four-cylinder cast iron structure, forced water cooling, and diesel fuel operation. Available in naturally aspirated or turbocharged versions, they are widely used in fishing boats, workboats, passenger vessels, generator sets, and auxiliary marine equipment.
Key Specifications
|
Model |
495C |
4100C |
4100ZC |
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Type |
Water - cooled,In - line,Four - stroke |
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Rated Power/Speed (kw/r/min) |
26.5/1500 30/1800 |
30.1/1500 33/1800 |
41.2/1500 48/1800 |
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Air Intake Method |
Natural Aspiration |
Supercharging |
|
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Number of Cylinders |
4 |
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Bore*Stroke (mm) |
95*115 |
100*115 |
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Compression Ratio |
19：:01 |
17:01 |
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Exhaust Temperature (°C) |
≤470 |
≤540 |
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Firing Order |
1-3-4-2 |
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Fuel Consumption Rate (g/kw.h) |
≤258.4 |
≤251.6 |
|
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Displacement (L) |
3.26 |
3.61 |
|
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Cooling Method |
Forced Water Cooling |
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Crankshaft Rotation Direction |
Counterclockwise (Viewed from the Power Output End) |
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Lubrication Method |
Pressure and Splash Combined Type |
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Starting Method |
Electric Start |
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Net Mass (kg) |
380 |
390 |
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Product Highlights
Four-stroke combustion design delivers stable power output, improved fuel efficiency, and reduced operating costs.
Forced water cooling system maintains consistent engine temperature for reliable long-term operation.
Naturally aspirated or turbocharged options allow customers to select suitable performance for different vessel requirements.
Combined pressure and splash lubrication reduces component wear and extends engine service life.
Electric starting system enables convenient and dependable engine startup in marine environments.
Compact in-line four-cylinder structure simplifies installation while providing easy maintenance access.
Typical Applications
Provides dependable propulsion for coastal and offshore fishing operations.
Supplies stable power for small ferries, sightseeing boats, and water taxis.
Supports utility vessels used for harbor service, maintenance, and transportation.
Powers pumps, hydraulic systems, and other onboard machinery.
OEM & Customization
|
Customization Item |
Description |
|
Engine Power Rating |
Different output ratings and operating speeds available. |
|
Aspiration System |
Naturally aspirated or turbocharged configurations. |
|
Cooling System Configuration |
Customized cooling components for different marine applications. |
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Electrical System |
12V or 24V electrical configuration available. |
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Control System |
Mechanical throttle, remote control, or customized control panel. |
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Instrument Panel |
Standard or customer-specified monitoring gauges. |
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Flywheel & Housing |
Different SAE standards and configurations available. |
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PTO Configuration |
Optional power take-off for auxiliary equipment. |
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Fuel System |
Fuel filter and piping configuration according to application. |
|
Paint Color |
Customized colors based on customer requirements. |
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Nameplate & Branding |
OEM logo, model number, and product labels supported. |
Quality Control
• Incoming raw material inspection
• Component dimensional inspection
• Cylinder block machining accuracy verification
• Crankshaft dynamic balance testing
• Fuel injection system calibration
• Lubrication system pressure testing
• Cooling system leak testing
• Compression pressure testing
• Electrical starting system verification
• Rated speed and power performance testing
• Fuel consumption measurement
• Exhaust temperature inspection
• Full-load running test
• Final appearance and packaging inspection
Technical Support & Service
Before Order
• Engine model selection based on vessel requirements
• Technical specification consultation
• Application matching recommendations
• OEM customization evaluation
• Quotation and documentation support
During Production
• Production schedule updates
• Quality inspection reports upon request
• Product photos before shipment
• Factory testing records
• Packaging confirmation
After Delivery
• Installation guidance
• Operation and maintenance manuals
• Spare parts supply
• Technical troubleshooting support
• Warranty service
• Long-term technical consultatio
Certifications
|
ISO 9001 |
Quality Management System |
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CE |
Compliance with applicable EU directives (where applicable) |
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CCS |
China Classification Society certification (optional models) |
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BV |
Bureau Veritas marine certification (optional) |
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ABS |
American Bureau of Shipping approval (optional) |
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DNV |
Marine classification certification (optional) |
Packaging & Shipping
• Export-grade plywood case or wooden crate
• Moisture-proof protective wrapping
• Anti-rust treatment for exposed metal surfaces
• Shock-resistant internal protection
• Spare parts packed separately when required
• Container shipping (20GP / 40GP / 40HQ)
• LCL and FCL shipment available
• Sea freight, rail freight, and multimodal transport supported
FAQ
Q: Are spare parts available after purchase?
A: Yes. Common maintenance parts and major replacement components are available for long-term supply.
Q: What is the recommended maintenance interval?
A: Routine inspection is recommended every 250 operating hours, with regular replacement of engine oil, filters, and other consumable parts according to the maintenance manual.
Q: What documents are supplied with the engine?
A: Typical export documents include the Commercial Invoice, Packing List, Bill of Lading, Certificate of Origin, operation manual, and factory test report. Additional documents can be provided upon request.
Q: What payment terms do you accept?
A: Common payment terms include T/T (30% deposit, 70% balance before shipment). Other terms may be discussed for long-term cooperation.
Q: Which Incoterms do you support?
A: Common trade terms include EXW, FOB, CFR, CIF, and DDP, depending on the destination and shipping arrangement.
Q: Is installation support available?
A: Yes. Installation manuals, wiring diagrams, operation guidance, and remote technical assistance are available. Online support can be provided when required.
Q: What is your minimum order quantity?
A: The standard MOQ is 1 unit for trial orders.
