425 Cat Engine Specs
Overview
The 425 Cat engine is a powerful and reliable diesel engine manufactured by Caterpillar Inc. It is known for its exceptional performance and durability, making it a popular choice for a wide range of applications, including heavy-duty trucks, construction equipment, and marine vessels.
Engine Configuration
The 425 Cat engine features a 6-cylinder, in-line configuration with a displacement of 14.6 liters (890 cubic inches). It is equipped with a turbocharger and an air-to-air aftercooler, which helps improve engine efficiency and performance. The engine is designed to meet strict emissions regulations while delivering impressive power and torque.
Power and Performance
The 425 Cat engine is capable of producing up to 425 horsepower (317 kW) at 1800-2100 RPM. It generates a maximum torque of 1550 lb-ft (2102 Nm) at 1200 RPM, ensuring excellent pulling power and acceleration. With its advanced fuel injection system and electronic controls, the engine delivers smooth and responsive performance, even under heavy loads.
Fuel System
The engine is equipped with a high-pressure common rail fuel system, which ensures precise fuel delivery and optimal combustion. This results in improved fuel efficiency, reduced emissions, and lower operating costs. The fuel system is designed to work seamlessly with the engine’s electronic controls, providing precise control over fuel injection timing and quantity.
Engine Oil Specs & Service Intervals
Proper maintenance and regular oil changes are crucial for the longevity and performance of the 425 Cat engine. Here are the engine oil specifications and recommended service intervals:
- Engine Oil Capacity: 40 quarts (37.9 liters)
- Recommended Oil Type: Caterpillar ECF-3 or API CJ-4
- Oil Viscosity: SAE 15W-40
- Oil Filter: Caterpillar 1R-1808 or equivalent
Service Intervals
To ensure optimal engine performance, it is recommended to follow these service intervals:
- Oil Change: Every 15,000 miles (24,000 kilometers) or 500 hours of operation, whichever comes first.
- Oil Filter Replacement: Every oil change or as recommended by the manufacturer.
- Fuel Filter Replacement: Every 30,000 miles (48,000 kilometers) or 1,000 hours of operation, whichever comes first.
- Air Filter Replacement: Every 30,000 miles (48,000 kilometers) or 1,000 hours of operation, whichever comes first.
- Coolant Replacement: Every 100,000 miles (160,000 kilometers) or 4 years, whichever comes first.
Detailed Engine Specifications
| Engine Model | 425 Cat |
|---|---|
| Configuration | 6-cylinder, in-line |
| Displacement | 14.6 liters (890 cubic inches) |
| Power | 425 horsepower (317 kW) at 1800-2100 RPM |
| Torque | 1550 lb-ft (2102 Nm) at 1200 RPM |
| Fuel System | High-pressure common rail |
| Fuel Type | Diesel |
| Fuel Injection | Electronic |
| Oil Capacity | 40 quarts (37.9 liters) |
| Oil Type | Caterpillar ECF-3 or API CJ-4 |
| Oil Viscosity | SAE 15W-40 |
| Oil Filter | Caterpillar 1R-1808 or equivalent |
In conclusion, the 425 Cat engine is a robust and high-performing diesel engine that offers exceptional power, torque, and fuel efficiency. With its advanced features and reliable construction, it is a trusted choice for various heavy-duty applications. By following the recommended service intervals and using the specified engine oil, you can ensure the longevity and optimal performance of this impressive engine.
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