Mercury Outboard Oil Filter 30 40 50 60 EFI SEA PRO 3-Cylinder 4-Cylinder 35-8M0162829 Supersedes 35-8M0065104 - 2 Pack. A well-maintained outboard is the key to smooth sailing, and clean oil plays a critical role in keeping the engine running efficiently. The Mercury Outboard Oil Filter (35-8M0162829) 2-Pack is built to handle the demands of Mercury and Mariner four-stroke engines, ensuring reliable filtration and consistent oil flow. Designed for a range of 30-60 HP EFI models, as well as select 3-cylinder and 4-cylinder SeaPro engines, this filter helps extend engine life by keeping contaminants out of the lubrication system.. Engineered for Dependable Performance. Precision Filtration - Captures even the smallest particles, preventing sludge buildup and keeping oil cleaner for longer.. Anti-Drain Back Valve - Maintains oil in the filter after shutdown, preventing dry starts and reducing wear on engine components.. Corrosion-Resistant Design - Durable, electroplated construction sta