This manual covers the Caterpillar C4.4 Industrial Engine Series, an inline 4-cylinder diesel engine with a displacement of 4.4 liters. Designed for a variety of industrial applications, this liquid-cooled engine features a common rail fuel injection system and an electric starter. Its robust engineering ensures reliability and performance, with peak power output typically ranging from 70 to 140 horsepower and peak torque varying by application. Emission standards also vary depending on the specific application and region.

This Operation and Maintenance Manual, provided in English and consisting of 86 pages, is essential for the proper upkeep and repair of Caterpillar C4.4 engines with serial numbers 4461 and up. It details crucial information on scheduled maintenance, including oil change intervals and fluid capacities, as well as filter types. The manual also provides technical specifications, troubleshooting guidance, and safety procedures, empowering owners, mechanics, and technicians to maintain the engine's optimal performance and longevity.