C31009x Air Filter - main applications: CASE CONSTRUCTION CX-Serie (Hydraulikbagger / Hydraulic Excavators). HITACHI EX- Serie (Raupenbagger / Crawler Excavator), ZX- Serie (Mobilbagger / Wheel Excavator). JOHN DEERE 300-Serie, 800-Serie, 900-Serie, 9000 Walker-Serie (Mähdrescher / Harvesters).