Fuel Filter fits all Mercury, Mariner and Force outboards equipped with externally mounted water separating fuel filter bases and all MerCruiser 4.3 Generation II engines (except 1992 MerCruiser 4.3 L Gen II engines equipped with an in-line fuel filter & 1.6L Vazer engines). 25 Micron For Outboard and Mercruiser Applications Interchangeable with: Sierra Marine 18-7945It is recommended that you change your fuel filter after every 100 hours of normal use or minimally once per season.

• For use with remote mounted water separating fuel filter kits
• Contains one fuel filter
• Water-separating fuel filters help keep water from reducing the efficiency and economy of the engine
• Replace the filter once each season or as your owner's manual recommends based on engine use.
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