Mercury Mercruiser Oil Filter 35-883702K The Mercury 35-883702K Oil Filter provides maximum protection for Mercury Mercruiser sterndrive and inboard engines. Mercury oil filters are constructed of the highest quality materials and are made specifically for marine applications. Their unique filtration system screens particles smaller than 11000th of an inch to keep your oil cleaner longer. Its high-efficiency design assures a constant flow of oil to vital engine parts. This Mercury Filter feature