The Kubota 6602113550 HST Fan is a genuine OEM replacement part specifically designed for various Kubota B-Series, BX-Series, and L-Series tractors. This critical component ensures efficient cooling for the hydrostatic transmission system, which is vital for maintaining optimal operating temperatures and preventing overheating. It is compatible with a wide range of models including B2320DT, B2320DTN, B2320HSD, B2320HSDN, B2620HSD, B2920HSD, BX1860, BX1870, BX1880, BX2360, BX2370, BX2380, BX2660, BX2670, BX2680, BX25, BX25DLB, BX23S, L2501DT, L2501F, L2501H, L3301DT, L3301F, L3301H, L3901DT, L3901F, L3901H, L3200DT, L3200F, L3200H, L3800DT, and L3800H.