Mercury - Fuel Filter Cartridge Sterndrive & Inboard Fuel System Gasoline Filtration 8M0046752. Overview. Every boater eventually learns that smooth power begins long before the throttle is pushed forward. It starts with clean fuel and a filter you can depend on-one that quietly protects your engine from the things you never see coming. The Mercury 8M0046752 Fuel Filter is one of those small parts that makes a big difference. When it's doing its job, you feel the steadiness in the idle, the clea