MERCURY On-Engine Water-Separating Fuel Filter 8M0106635 for V6/V8 FourStroke — 10-Micron, OEM Fit

The MERCURY 8M0106635 is an on-engine, water-separating 10-micron fuel filter designed to protect V6 and V8 FourStroke outboards from water and particle contamination.

This on-engine fuel filter is engineered to remove water and particulate matter before they reach critical fuel system components, preserving engine responsiveness and reducing the risk of fouling. It is sized and specified to fit Mercury 3.4L V6 and 4.6L V8 150–300hp FourStroke outboards, offering a direct-replacement option that matches factory fit and flow characteristics. Routine replacement maintains fuel-system cleanliness and helps sustain peak performance across a boating season.

How does this filter protect my engine during a day on the water?

The 10-micron media traps small particles while the water-separating design sheds free water, so fuel reaching injectors is cleaner. That reduces the chance of clogged components and helps the engine run more consistently under load.

• 10-micron filtration captures fine debris that can damage injectors.
• Water separation keeps free water out of the combustion system.
• On-engine location filters fuel immediately before delivery to the engine.

Which Mercury engines will this filter fit and why compatibility matters?

This part is manufactured to fit Mercury 3.4L V6 and 4.6L V8 FourStroke outboards rated 150–300 horsepower. Using the correct OEM-style filter ensures proper sealing, flow rate and pressure characteristics the engine expects, preventing leaks and performance issues.

• Compatible with Mercury 3.4L V6 and 4.6L V8 FourStroke 150–300hp models.
• OEM fit maintains factory fuel-flow and sealing tolerances.
• Designed for direct replacement—no modification required.

When should I replace the filter to avoid fuel-related problems?

Replace the filter at least once each season or every 100 engine operating hours, whichever comes first, unless your owner’s manual specifies a different interval. Frequent inspection after long storage or contaminated fuel exposure is recommended.

• Replace annually or every 100 hours as a baseline maintenance step.
• Check sooner after fuel-quality incidents or prolonged storage.
• Use genuine Mercury parts for consistent performance and warranty alignment.

What performance benefits can I expect after installing this filter?

With clean, dry fuel delivered to the engine, you should notice steadier throttle response, reduced hesitation under load and fewer maintenance interventions related to fuel-system contamination. It helps preserve injector life and maintains intended engine efficiency.

• Smoother throttle response and consistent power delivery.
• Lower risk of injector and carburetor clogs from debris and water.
• Helps maintain fuel-system reliability between service intervals.

Who this is for: Boaters who own Mercury 3.4L V6 or 4.6L V8 FourStroke outboards and want a factory-compatible, water-separating fuel filter to protect engine fuel systems. It’s ideal for owners focused on preventive maintenance, anglers and recreational boaters operating in varied fuel and weather conditions, and technicians replacing on-engine fuel filters during scheduled service.