This workshop service manual covers the CNH NEF TIER 3 Series Diesel Engine, a robust and reliable power unit designed for demanding applications. Featuring a 4-cylinder, in-line, 4-stroke configuration with a 4.5L displacement, this engine meets Tier 3 emission standards. It is equipped with advanced induction systems, including supercharging and turbocharging with intercoolers, and utilizes a Common Rail fuel system for efficient operation. Applicable engine codes include F4CE, F4DE, F4GE, and F4HE, ensuring broad compatibility across various equipment. This comprehensive manual is designed to assist owners, experienced mechanics, and technicians in maintaining and repairing the NEF TIER 3 Series Diesel Engine. It provides detailed information on a wide range of topics, including safety precautions, technical specifications, lubrication, cooling systems, air induction, and the fuel system. Furthermore, the manual offers guidance on electrical components, diagnosis of fault codes, engine timing, disassembly and assembly procedures, and includes a maintenance planning section with routine and major repair guidance.