This manual covers the Iveco F4GE N Series Engine, a robust 4-cylinder engine designed for agricultural applications. Featuring a TIER 3 standard and a Bosch VE 4/12 F rotary mechanical pump, this engine family is engineered for reliability and performance. Some versions include boost with an inter-cooled system, further enhancing its capabilities. The F4GE N Series is built to meet the demanding requirements of agricultural work, offering dependable power and efficiency. This Service Repair Workshop Manual provides comprehensive guidance for maintaining and repairing the Iveco F4GE N Series Engine. It details routine maintenance procedures, including checks and settings for the oil, fuel, cooling, and lubricating systems, as well as tappet clearance. The manual also covers replacement procedures for essential components like the oil motor and filter, fuel filter, and alternator belt. Furthermore, it delves into in-depth technical information for engine overhaul, encompassing removal, cylinder unit checks, timing system analysis, output shaft measurements, connecting rod and piston assembly fitting, cylinder head refitting, and tightening torques.