The Kubota 1857104250 is a genuine OEM oil seal, precisely engineered with dimensions of 25mm inner diameter, 40mm outer diameter, and 7mm thickness. This critical sealing component ensures optimal performance and prevents fluid leaks in a wide range of Kubota agricultural, construction, and utility machinery, including B-series, BX-series, D-series engines, F-series, G-series, GR-series, K-series, KX-series, RTV-series, T-series, U-series, Z-series engines, ZD-series, ZG-series, and ZP-series models. Designed for durability and a perfect fit, it maintains the integrity of your equipment's hydraulic and engine systems.