Crafted with precision for your Subaru, the Genuine 15208AA21A Oil Filter promises an exceptional filtration process to maintain your engine's health. The included 803916010 Crush Washer ensures a perfect seal, preventing leaks and enhancing the longevity of your oil filter. The product, with its easy installation feature, is a direct fit replacement, boasting the OEM part number 15208AA21A and superseding part numbers 15208AA20A, 15208AA15A, and SOA6351520815. It comes complete with a gasket, making the installation process straightforward and hassle-free, ensuring your engine runs smoothly.  OLD PART NUMBER 15208AA20A