Isuzu 4BG1 11-Blade Cooling Fan for Hitachi ZX120 ZX110 Excavator OEM 1-13660345-0 8-97161599-0 Replacement Describe: The Isuzu 4BG1 11-Blade Heavy-Duty Cooling Fan is precision-engineered as a direct OEM replacement for Hitachi Zaxis series excavators including ZX120, ZX110, ZX95, ZX125US, ZX135US and ZX135UR models. Featuring 11 aerodynamically optimized blades and a 4-hole pulley flange mounting pattern, this cooling fan delivers superior heat dissipation for construction