This MAHLE oil filter, part code OX 91D, is engineered to meet stringent filtration standards. It effectively removes contaminants such as dirt, carbon deposits, and metal particles from your engine oil, preventing premature wear on critical engine components. Regular replacement of your oil filter is essential for maintaining engine health. The OX 91D ensures that fresh oil circulates freely, providing necessary lubrication and cooling while protecting your engine from damage. Trust MAHLE for reliable filtration. Designed for a precise fit, this filter integrates seamlessly into your vehicle's oil system. Its robust construction guarantees durability and consistent performance under various operating conditions, ensuring your engine receives clean oil when it needs it most.