Covers the following Sisu Models:
320D 320DS 420D 420DS 420DW 420DWI 620D 620DS 634DS
HIGH QUALITY PDF VERSION
This manual contains all you need to know to keep your Sisu 320,420,620,634 Series Diesel Engine working correctly. You will find that this manual is an indispensable source of detailed maintenance and repair information and is the only service repair manual you will need for your Sisu Diesel Engine.