This comprehensive workshop service repair manual covers the New Holland CNH U.K. F4BE0454B, F4BE0484D, F4BE0484E, F4BE0684B, and F4BE0684M engine series. Designed for demanding applications, these engines are recognized for their robust construction and reliable performance, ensuring efficient operation across a range of professional and industrial uses. Their engineering reflects a commitment to durability and power, making them a trusted choice for heavy-duty tasks. This manual provides in-depth guidance for the maintenance, repair, and servicing of these specific engine models. It details essential procedures, technical specifications, and troubleshooting steps necessary for optimal performance and longevity. Owners, technicians, and mechanics will find this resource invaluable for understanding the intricacies of the engine, performing routine checks, and addressing any potential issues, thereby ensuring the continued operational integrity of the equipment.