Fuel Filter

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Filters over 99% of emulsified water from your gasoline


The Sierra 18-7946 10 Micron Fuel Water Separator can remove over 99.8% of emulsified water from your gasoline. In fact, it's over 90% efficient at removing particles as small as 10 microns and flow at 90 GPH to feed even the most demanding motors. Sierra Micron filters are highly recommended in order to prevent damage to a sensitive inboard, sterndrives or outboard fuel injection systems.

Sierra 18-7946 10 Micron Fuel Water Separator Features:

  • Ethanol blended fuel absorbs more water and loosens more particulants than regular fuels
  • Proper filtration is required for every horsepower engine
  • Sierra's 10 micron filters are over 90% efficient at removing particles as small as 10 micron
  • All filters flow at 90 GPH to feed even the hungriest motor
  • Replaces OMC 502905, WIX 33364
  • Dimensions: 4-1/4" high X 4" diameter


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Prices may be higher due to freight (North & South island prices may be different), packaging and insurance in some areas. Accessories shown for illustration purposes only. Pictures may show optional extras. Not all stock carried at all stores but orders welcome. We reserve the right to limit quantities and correct pricing errors. Stocks available until sold out. All prices are inclusive of GST. No responsibility is taken for stock unavailability due to supplier issues. All prices subject to change without prior notice.

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