This service manual covers the CNH INDUSTRIAL CURSOR 9 TIER 4B (FINAL) AND STAGE IV ENGINE. Designed for robust performance and reliability, this engine is engineered to meet stringent emissions standards while delivering efficient power output. Its advanced technology ensures optimal operation across a variety of demanding applications, reflecting CNH Industrial's commitment to quality and innovation in engine manufacturing. The purpose of this manual is to provide comprehensive guidance for the maintenance, repair, and servicing of the CURSOR 9 engine. It details essential procedures, technical specifications, and troubleshooting steps necessary for technicians and owners to ensure the engine's longevity and peak performance. By following the information contained within, users can effectively maintain the engine's operational integrity and address any potential issues with precision and confidence.