This workshop service repair manual covers New Holland CNH Engines, specifically the F4HFE613J, F4HFE613K, and F4HFE613P series diesel engines. These engines, ranging from 4 to 6 cylinders, are designed to meet Tier 4 emission standards. Engineered for reliability and performance, these engines are a robust choice for various applications. This comprehensive English-language manual provides detailed information to assist owners, mechanics, and technicians. It includes extensive coverage of maintenance procedures, such as general maintenance and lubrication specifics, alongside in-depth repair procedures for the engine and its various systems, including powertrain, chassis, electrical, cooling, climate control, engine management, and emission systems. Troubleshooting guidance, technical specifications, and operational advice are also included to ensure optimal vehicle performance and longevity.