OTTO Excavator Spare Parts Zx330 6Hk1 Oil Overflow Valve 8943930770 894393-0770 8-94393077-0 For Isuzu This product is an oil overflow valve designed for the Isuzu engine model 6HK1 in the Zx330 excavator. The part numbers associated with it are 8943930770, 894393-0770, and 8-94393077-0. The valve helps regulate oil flow and ensure efficient operation of the specified equipment.