The Genuine Parts Detroit A4721843225 Oil Filter Kit includes a seal and washer, making it convenient for installation. This high-quality oil filter is designed to fit Freightliner, Western Star, Detroit Diesel, and Mercedes vehicles. Manufactured in the United States, it features a rubber gasket material and comes with a manufacturer warranty for added peace of mind. With cross-reference compatibility, this easy-to-install filter ensures optimal engine performance and protection.