Sierra fuel filter 18-7844

The Sierra fuel filter 18-7844 is a popular choice for many boat owners because it's a water separating spin-on fuel filter designed for various Mercury and Mercruiser marine engines. Here's a closer look at its features and compatibility: Features: 21 Micron Filtration: Removes particles as small as 21 microns from your engine's fuel supply, protecting it from dirt, dust, and water contamination. This helps prevent engine wear, corrosion, and performance issues. Water Separating: This filter has a built-in mechanism that separates water from fuel. Water can damage marine engines, and the 18-7844 allows you to easily drain the collected water from a dedicated valve at the bottom of the filter. Spin-On Design: Enables quick and convenient installation and removal during filter changes. Durable Construction: Built with high-quality materials to withstand the harsh marine environment. Sources mention features like a corrosion-resistant design. Compatibility: The Sierra 18-7844 is compatible with a wide range of Mercury and Mercruiser marine engines. Here are some confirmed replacements: Mercury Marine: Replaces Mercury OEM filter models including 35-807172, 35-806771, 35-802893Q, 35-802893Q01