In-Line Fuel Filter 5/16″ for Mercury & Mariner Outboard Motors

Keep your outboard running smoothly with this in-line fuel filter for Mercury and Mariner outboard motors. Designed for 4-stroke engines and a 5/16″ fuel line, it helps trap dirt, debris and water before they reach the engine, improving performance and reducing the risk of fuel system blockages. This replacement in-line fuel filter is compatible with a wide range of Mercury and Mariner engines from 40HP up to 300HP, making it an ideal choice for routine servicing, maintenance and reliable on-water performance. Key Features In-line fuel filter for Mercury and Mariner outboard motors Suitable for 4-stroke engines Fits 5/16″ fuel hose / fuel line Helps prevent fuel contamination and engine damage Ideal for servicing, maintenance and fuel system protection Compatible with 40HP to 300HP outboards