The MANN FILTER W71221 is a high-quality spin-on oil filter engineered to protect engine components by effectively removing contaminants from the lubricating oil. Featuring a robust design with a M20 x 1.5 thread, this filter ensures reliable performance and extended engine life. It includes an anti-drain back valve to prevent oil starvation during cold starts and a bypass valve with an opening pressure of 2.5 bar, ensuring oil flow even when the filter element is clogged. The W71221 is a direct replacement for numerous OEM part numbers, providing broad compatibility across various machinery.