OTTO Excavator Engine Parts Sy330C1 6Hk1T Sensor 1815103430 181510-3430 1-81510343-0 For Isuzu OTTO SY330C1 excavator engine part: sensor (Isuzu 6HK1T turbo engine), for general engine operational monitoring. Part nos: 1815103430, 181510-3430, 1-81510343-0