The Cummins NTC-FFC 250 290 350 400 Series Engines Parts Catalog Manual with Bulletin No. 3379517-03 is a comprehensive guide for owners and maintenance personnel of heavy equipment featuring Cummins engines. This manual covers parts and accessories for models NTC-250, NTC-250 Formula, NTC-250-S, NTC-290, and NTC-290 Formula, providing detailed information for service and repair. With a focus on reliability and efficiency, this catalog serves as a valuable resource for keeping these engines running smoothly in various industrial applications.