Sierra 18-7714 Fuel Filter Inline Sierra inline fuel filter are designed to be direct replacements for OEM filters, making them easy to install. Sierra inline fuel filters are tested and approved for ethanol-based fuels and meet the demands of todays high tech, high performance engines. Fits 25 HP - 90 HP 4-Stroke Carburetored Outboards 1999 Newer. Sonically sealed end caps. OEM matched filter media. Maximum performance with no restrictions. Direct OEM replacements Approved for use with ethanol