OTTO Excavator Engine Parts Zx200-3 4Hk1 Sensor High Pressure Pump 8980235810 898023-5810 8-98023581-0 For Isuzu OTTO ZX200-3 excavator engine part: high pressure pump sensor (Isuzu 4HK1 engine), monitors fuel system pressure. Part nos: 8980235810, 898023-5810, 8-98023581-0