This manual provides detailed operational, maintenance, and troubleshooting guidance for Detroit Diesel Series 92 engines. Essential for technicians and industry professionals. Covers engine assemblies, lubrication, cooling, and electrical systems. Includes preventive maintenance and troubleshooting sections. Published March 1977 by General Motors Corp. Printed in the USA Cover shows wear and slight discoloration; pages are intact and legible. What you see in the pictures is always what you get, we do not use stock photos or other peoples photos to sell our items. Please inspect the photos closely for condition and please do not hesitate to ask questions.