This Service Repair Manual covers the CASE New Holland 445/M2, 445T/M2, and 668T/M2 Diesel Engines, designed for industrial equipment applications. These engines are built with a focus on robust engineering and reliable performance, utilizing diesel fuel as their power source. The manual provides comprehensive information to ensure the longevity and optimal functioning of your CASE New Holland diesel engine. The purpose of this manual is to offer detailed guidance on the repair, servicing, technical maintenance, and troubleshooting of these specific engine models. It includes essential technical specifications and is enhanced with actual real photo illustrations to facilitate understanding. This resource is intended for owners, mechanics, and technicians, enabling them to perform necessary maintenance and repairs effectively and efficiently.