Cummins 4BT Marine Engine Specs
Engine Configuration
The Cummins 4BT marine engine is a compact and reliable powerplant designed specifically for marine applications. It features a 3.9-liter displacement and is a four-cylinder, inline engine. The engine is turbocharged and uses a direct injection fuel system. With its compact size and robust design, the 4BT is a popular choice for a wide range of marine vessels.
Engine Oil Specs & Service Intervals
Proper maintenance and regular oil changes are crucial for the longevity and optimal performance of any marine engine, including the Cummins 4BT. Here are the engine oil specifications and recommended service intervals for the 4BT marine engine:
- Oil Type: It is recommended to use a high-quality diesel engine oil that meets the Cummins CES 20078 specification. This ensures proper lubrication and protection for the engine components.
- Oil Viscosity: The recommended oil viscosity for the 4BT marine engine is SAE 15W-40. This viscosity provides excellent lubrication in both cold and hot operating conditions.
- Oil Capacity: The oil capacity of the 4BT marine engine is approximately 10.6 liters (2.8 gallons).
Service Intervals
To maintain the performance and reliability of the Cummins 4BT marine engine, it is important to follow the recommended service intervals. Here are the general guidelines for oil change intervals:
- Initial Oil Change: The first oil change should be performed after the first 50 hours of operation or as recommended by the manufacturer.
- Regular Oil Changes: After the initial oil change, subsequent oil changes should be performed every 250 hours of operation or annually, whichever comes first.
- Oil Filter Replacement: The oil filter should be replaced at every oil change to ensure proper filtration and prevent contaminants from circulating in the engine.
It is important to note that service intervals may vary depending on the specific marine application, operating conditions, and manufacturer recommendations. Always refer to the engine’s owner’s manual or consult with a certified Cummins technician for the most accurate and up-to-date information.
Detailed Engine Specifications
| Engine Model | Cummins 4BT |
|---|---|
| Displacement | 3.9 liters |
| Configuration | Inline, four-cylinder |
| Aspiration | Turbocharged |
| Fuel System | Direct Injection |
| Oil Type | Cummins CES 20078 |
| Oil Viscosity | SAE 15W-40 |
| Oil Capacity | Approximately 10.6 liters (2.8 gallons) |
The Cummins 4BT marine engine is a reliable and efficient powerplant that offers excellent performance for various marine applications. By following the recommended engine oil specifications and service intervals, you can ensure the longevity and optimal performance of your Cummins 4BT marine engine. Regular maintenance and proper care will help you enjoy smooth sailing and peace of mind on the water.
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