A dependable outboard starts with clean, well-circulated oil, and the Mercury Outboard Oil Filter (35-877761K01) is designed to keep your engine running at peak performance. Engineered for Mercury and Mariner FourStroke models, this high-quality filter protects against harmful contaminants, ensuring smoother operation and a longer engine life. Whether you’re pushing full throttle offshore or cruising through calm waters, reliable oil filtration is essential for keeping everything running smoothly.

Designed for Lasting Protection

• Advanced Filtration – Captures fine particles before they can cause engine wear, keeping oil clean for extended performance.
• Anti-Drain Back Valve – Retains oil when the engine is off, preventing dry starts and ensuring instant lubrication on ignition.
• Corrosion-Resistant Housing – Durable electroplated construction holds up against harsh marine conditions, including saltwater exposure.

Practical Application for Consistent Performance

Built for 75, 90, and 115 HP Mercury FourStroke outboards and 150 HP EFI FourStroke models, this filter ensures proper oil flow and longevity. Replacing the oil filter every 100 hours of operation or at least once per season is key to preventing buildup and maximizing engine efficiency. A simple yet critical part of maintenance, this filter helps keep your engine ready for wherever the water takes you.