521 / 3AR
Serial: 1 → 99999
120 system groups
▶AIR INLET AND EXHAUST 6
▶BASIC ENGINE 16
▶ELECTRICAL AND STARTING 11
▶ENGINE ARRANGEMENT 1
▶FUEL 9
▶HYDRAULIC 19
▶LUBRICATION 6
▶MACHINE ARRANGEMENT 1
▶OPERATOR STATION 18
▶SERVICE EQUIPMENT AND SUPPLIES 3
▶STEERING 1
▶WATER 1