The Caterpillar NTC-290 is a robust, turbocharged, liquid-cooled diesel engine engineered for demanding heavy-duty applications. With an approximate displacement of 11.7 liters and an inline 6-cylinder configuration, it delivers a rated power of 290 horsepower. Its mechanical fuel injection system and typically high torque output make it suitable for a wide range of uses, including trucks, buses, heavy-duty equipment, and industrial machinery. The NTC-290 is recognized for its durability and reliable performance in challenging operational environments. This comprehensive service repair manual, written in English, is designed to assist technicians, mechanics, and engine owners in understanding, maintaining, and repairing the Caterpillar NTC-290 engine. It covers essential areas such as detailed maintenance schedules, including oil change intervals and fluid capacities, as well as information on critical components like oil, fuel, and air filters. The manual also provides technical specifications, performance data including torque and RPM, and guidance for various applications, ensuring the engine operates at peak efficiency and longevity.