OTTO Excavator Engine Parts Fvz34 6Hk1T Sensor High Pressure Pump 8981454490 898145-4490 8-98145449-0 For Isuzu OTTO FVZ34 excavator engine part: high pressure pump sensor (Isuzu 6HK1T turbo engine), monitors fuel system pressure. Part nos: 8981454490, 898145-4490, 8-98145449-0