Cat D399 Engine: Specifications, Configuration, and Service Intervals

Cat D399 Engine Specs

The Cat D399 engine is a powerful and reliable engine that has been widely used in various applications, including marine, industrial, and petroleum industries. This article will provide you with detailed specifications of the Cat D399 engine, including its configuration, engine oil specs, and service intervals.

Engine Configuration

The Cat D399 engine is a V-12, four-stroke diesel engine with a displacement of 48.9 liters (2,988 cubic inches). It features a turbocharged and aftercooled design, which helps improve its performance and efficiency. The engine is designed to provide high power output and torque, making it suitable for heavy-duty applications.

Here are some key specifications of the Cat D399 engine:

• Number of cylinders: 12
• Bore: 159 mm (6.25 inches)
• Stroke: 203 mm (8 inches)
• Compression ratio: 13.5:1
• Aspiration: Turbocharged and aftercooled
• Fuel system: Direct injection
• Governor type: Mechanical
• Rotation (from flywheel end): Counterclockwise

Engine Oil Specs

Proper lubrication is crucial for the performance and longevity of any engine, including the Cat D399. Using the right engine oil and following the recommended service intervals is essential to ensure optimal engine operation. Here are the engine oil specifications for the Cat D399 engine:

• Recommended oil type: Cat DEO (Cat Diesel Engine Oil) or equivalent
• Viscosity grade: SAE 30
• Oil capacity (including filter): 189 liters (50 gallons)
• Oil change interval: Every 250 hours or 6 months, whichever comes first

Service Intervals

Regular maintenance and servicing are vital to keep the Cat D399 engine in top condition. Following the recommended service intervals will help prevent potential issues and ensure optimal performance. Here are the service intervals for the Cat D399 engine:

1. Engine oil and filter change: Every 250 hours or 6 months
2. Fuel filter change: Every 500 hours or 12 months
3. Air cleaner element change: Every 500 hours or 12 months
4. Valve lash adjustment: Every 2,000 hours or 2 years
5. Cooling system flush and refill: Every 2,000 hours or 2 years
6. Injector synchronization: Every 2,000 hours or 2 years

It is important to note that these service intervals may vary depending on the operating conditions and application of the engine. Therefore, it is recommended to consult the Cat D399 engine’s operation and maintenance manual for specific guidelines and instructions.

In conclusion, the Cat D399 engine is a robust and high-performance engine that offers excellent power and torque. By following the recommended engine oil specifications and service intervals, you can ensure the longevity and reliability of the engine in various applications. Regular maintenance and proper lubrication are key to keeping the Cat D399 engine running smoothly for years to come.