This shop manual covers the Cummins 4BT3.9 and 6BT5.9 engines and is applicable for certification levels in 1991 and 1994. It is a comprehensive factory manual spanning 461 pages, providing essential information for engine maintenance and repair.
Engine ID
Engine disassembly and assembly
Cylinder block
Cylinder head
Rocker levers
Cam followers
Fuel system
Injectors
Lubricating oil system
Cooling system
Drive units
Air intake
Exhaust system
Air equipment
Electrical equipment
Engine testing
Mounting adaptions
Specifications
Service literature
This manual is invaluable for both professional mechanics and DIY enthusiasts, offering detailed insights into the inner workings and maintenance procedures for these Cummins engines.
