Isuzu 4BG1T Turbo Diesel Engine Cooling Fan 11 Blades 1-13660345-0 for Kobelco SK120-6 Excavator Replacement Parts Describe: This Isuzu 4BG1T Turbo Diesel Engine 11-Blade Cooling Fan is an aftermarket replacement component specifically validated for Kobelco SK120-6 excavators equipped with the turbocharged 4BG1T engine platform. The 11-blade heavy-duty design provides exceptional radiator airflow necessary for turbocharged engine cooling under sustained high-load operation.