This comprehensive workshop manual covers the David Brown 165001.2, 220001.2, and 220101 Large Diesel Engine models. Engineered for reliability and performance, these engines are designed for demanding applications where robust power and durability are paramount. The manual provides in-depth information to ensure these engines operate at peak efficiency throughout their service life, reflecting David Brown's commitment to quality engineering. This professional manual is your essential guide for all repair, servicing, and troubleshooting procedures. It contains hundreds of pages filled with detailed instructions, step-by-step guidance, and highly detailed exploded diagrams and pictures. This resource is invaluable for owners, professional mechanics, and technicians seeking to perform every job correctly and maintain the longevity of their David Brown large diesel engines.