OTTO Excavator Parts Ls4300 6Sd1T Nozzle 6670 1153111646 115311-1646 1-15311164-6 For Isuzu OTTO Excavator Parts Ls4300 6Sd1T Nozzle 6670 1153111646 115311-1646 1-15311164-6 For Isuzu are components designed for fuel injection in an engine, specifically optimized for Isuzu machinery.