521 / ERX
Serial: 1 → 99999
90 system groups
▶AIR INLET AND EXHAUST 3
▶BASIC ENGINE 16
▶BRAKING 1
▶COOLING 7
▶ELECTRICAL AND STARTING 14
▶ENGINE ARRANGEMENT 1
▶FRAME AND BODY 5
▶FUEL 8
▶HYDRAULIC 11
▶MACHINE ARRANGEMENT 1
▶OPERATOR STATION 8
▶POWER TRAIN 2
▶SERVICE EQUIPMENT AND SUPPLIES 5
▶STEERING 1
▶VIBRATORY 3