The Kubota W21CS04200 is a genuine OEM oil seal, precisely engineered with an inner diameter of 21mm, an outer diameter of 42mm, and a thickness of 7mm. This critical sealing component is designed for a wide range of Kubota engines, including D902, D1005, V1505, V1305, D1105, D722, D662, D905, and D782 series. It also fits numerous Kubota compact tractors, excavators, and utility vehicles such as the B-Series (B2320, B2620, B2920, B3000HSDC, B3030, B3200, B3300SU, B3350, B3350SU, B2650, B3150), BX-Series (BX23S, BX2670, BX2680, BX23SL, BX26SL), F-Series (F2690, F3080, F3680, F3990), K-Series (K008-3, KX008-3, KX41-3), RTV-X Series (RTV-X1100CR, RTV-X1100CW, RTV-X1120DR, RTV-X1120DW, RTV-X1140R, RTV-X1140W), U-Series (U15, U17, U25S), ZD-Series (ZD1011, ZD1021, ZD1211, ZD1211L, ZD1511, ZD1511L, ZD28, ZD326, ZD331), ZG-Series (ZG222, ZG227, ZG327, ZG332LP, ZG332P), and ZP-Series (ZP330). This high-quality seal ensures optimal sealing performance, preventing leaks and maintaining proper lubrication to extend the lifespan and reliability of your Kubota machinery.