Cummins 8.3 ISC Engine: Specifications, Configuration, and Maintenance

Cummins 8.3 ISC Engine Specs

The Cummins 8.3 ISC engine is a popular choice for various applications, including medium-duty trucks, RVs, and buses. Known for its reliability and performance, this engine has been a staple in the Cummins lineup for many years. In this article, we will explore the specifications of the Cummins 8.3 ISC engine, its configuration, engine oil specs, and service intervals.

Engine Configuration

The Cummins 8.3 ISC engine is an inline six-cylinder diesel engine. It features a displacement of 8.3 liters, or 504 cubic inches, which gives it its name. The engine is turbocharged and aftercooled, providing enhanced power and efficiency. With a bore of 4.49 inches and a stroke of 5.32 inches, the 8.3 ISC engine delivers a balanced combination of torque and horsepower.

Engine Oil Specs

Proper engine oil is crucial for maintaining the performance and longevity of any engine, including the Cummins 8.3 ISC. Here are the recommended engine oil specifications for this engine:

• Oil Type: Cummins recommends using high-quality diesel engine oil that meets the CES 20078 specification. It is important to choose oil that is specifically formulated for use in diesel engines.
• Viscosity: The recommended viscosity for the Cummins 8.3 ISC engine is 15W-40. This viscosity provides excellent lubrication and protection across a wide range of operating temperatures.
• Oil Capacity: The oil capacity of the 8.3 ISC engine varies depending on the application. It is advisable to refer to the engine’s manual or consult with a Cummins dealer to determine the specific oil capacity for your vehicle.

Service Intervals

Regular maintenance is essential for keeping the Cummins 8.3 ISC engine running smoothly. Here are the recommended service intervals for this engine:

1. Oil Change: The engine oil should be changed every 15,000 miles or 500 hours of operation, whichever comes first. Regular oil changes help remove contaminants and ensure proper lubrication.
2. Fuel Filter Replacement: The fuel filter should be replaced every 15,000 miles or 500 hours of operation. This helps maintain fuel quality and prevents potential issues caused by contaminated fuel.
3. Air Filter Replacement: The air filter should be inspected regularly and replaced as needed. In dusty or dirty environments, more frequent inspections and replacements may be necessary to prevent engine damage.
4. Coolant System Maintenance: The coolant should be tested regularly for proper pH and freeze point. It is recommended to flush and replace the coolant every 60,000 miles or 2 years, whichever comes first.
5. Other Maintenance: Additional maintenance tasks, such as belt inspections, valve adjustments, and fuel system checks, should be performed as outlined in the engine’s manual or recommended by a Cummins dealer.

Detailed Engine Specifications

To provide a comprehensive overview of the Cummins 8.3 ISC engine, here are its detailed specifications:

These specifications provide a glimpse into the capabilities of the Cummins 8.3 ISC engine, showcasing its power, efficiency, and durability. Whether you are in need of a reliable engine for your truck, RV, or bus, the 8.3 ISC engine is a trusted choice.

In conclusion, the Cummins 8.3 ISC engine offers impressive specifications, including its inline six-cylinder configuration, turbocharged and aftercooled design, and a displacement of 8.3 liters. When it comes to engine oil, using high-quality diesel engine oil that meets the CES 20078 specification is recommended, with a viscosity of 15W-40. Regular maintenance, including oil changes, fuel filter replacements, and air filter inspections, is crucial to keep the engine running smoothly. By following the recommended service intervals and specifications, you can ensure optimal performance and longevity for your Cummins 8.3 ISC engine.