Replacement oil filter 8M0176312 is for use with 175-300hp and 450R 3.4L V6 and 4.6L V8 4-stroke outboards (serial No. 2B529482 & above). Change your oil at least once each year and as your owner's manual recommends based on hours of use. It's easy to unscrew the used filter and replace it with a new, clean filter. Periodic maintenance and service helps protect your investment in your engine and your boating pleasure. See your owner's manual or service manual for specific applications and replacement instructions. The Quicksilver brand is the leader in delivering uncompromising engine oils, parts and accessories to the marine industry for over 65 years. Quicksilver is the premier supplier of Mercury Marine Original Equipment replacement engine parts, oils, and accessories, but also works to serve all Original Equipment brands in the marine and powersports industries. It has earned a loyal following by providing the highest quality products that are tested through some of the most rigorous environments and testing procedures. No aftermarket company comes close to the level of research and design as Quicksilver; buying Quicksilver is buying performance, protection and peace of mind.