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Fuel Filters

      Fuel Filters Product Listings

      • Quicksilver 35-802893Q01 Water Separating Fuel Filter
        $16.79
        $13.99

        Quicksilver 35-802893Q01 Water Separating Fuel Filter  This 25 micron Mercury filter separates water and other impurities from the fuel to increase engine performance. Fuel contamination can result in poor engine performance, stalling, and...

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      • Quicksilver 35-879885Q In-Line Fuel Filter
        $17.39
        $14.49

        Quicksilver 35-879885Q In-Line Fuel Filter This under-cowl inline fuel filter offers essential protection by removing fuel-borne contaminants before they reach your engine. With a translucent body for easy inspection, it fits a wide range of Mercury and...

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      • Mercury 35-879885K In-Line Fuel Filter
        $18.59
        $15.49

        Mercury 35-879885K In-Line Fuel Filter Genuine OEM Mercury replacement in-line fuel filter. Fits 25-40 HP EFI 4-Stroke Outboards 4-Cylinder (996cc) 40/50/60 HP EFI 4-Stroke Outboards 75-115 HP 4-Stroke Outboards (s/n 1B366823 and up) 135-300 HP...

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      • Quicksilver 35-879884T Fuel Filter
        $19.19
        $15.99

        Quicksilver 35-879884T Fuel Filter The Quicksilver 35-879884T is an OEM-quality under-cowl fuel filter designed for Mercury 30HP 3-cylinder and 40–60HP 4-cylinder EFI FourStroke outboards (serial #0T409000 and above). It features a 20-micron...

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      • Mercury Mercruiser Gen III Fuel Cooler Marine Fuel Filter
        $77.39
        $64.49

        Quicksilver 35-8M0093688 Gen III Fuel Cooler Fuel Filter The Quicksilver 8M0093688 Fuel Filter is designed for 2004–2015 MerCruiser MCM/MIE engines with Gen III fuel cooler systems. It removes fuel-borne contaminants at the cooling chamber to help...

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      • Quicksilver 35-8M0122423 Fuel Filter Element Thumbnail Image
        $42.59
        $35.49

        Quicksilver 35-8M0122423 Fuel Filter Element Quicksilver 8M0122423 Fuel Filter Element is a screw-in replacement filter for select Mercury and Mariner outboards and MerCruiser 4.5L/6.2L sterndrive engines. Designed for use with vapor separator systems,...

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      • Mercury - Mercruiser 35-864572 Fuel Filter
        $53.39
        $44.49

        Quicksilver 35-864572 Fuel Filter Replacement inline fuel filter 864572 fits MerCruiser sterndrive and inboard gasoline engines with a fuel booster pump. Installed between the fuel tank and booster pump. Prevents debris from reaching the pump inlet...

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      • Mercruiser 35-8M0204703 Disc Fuel Filter
        $48.59
        $40.49

        Quicksilver 35-8M0204703 Disc Water Separating Fuel Filter Quicksilver 8M0204703 Water Separating Fuel Filter Disc is a replacement element for 2004 and newer Mercury/MerCruiser sterndrive and inboard engines equipped with Gen III fuel cooler systems...

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      • Mercury 35-8M0157133 Inline Fuel Filter
        $22.19
        $18.49

        Quicksilver 35-8M0157133 Inline Fuel Filter The Quicksilver 8M0157133 Inline Fuel Filter fits Mercury and Mariner outboards ranging from 4 to 20 HP, covering 2-cycle and 4-stroke models from 1999 and newer. Designed to protect your engine by...

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      • Quicksilver 8M0157620 Fuel Filter Thumbnail Image
        $35.99
        $29.99

        Mercury - Mercruiser 8M0157620 Fuel Filter Genuine OEM Mercury-Mercruiser part. New design to be smaller to better fit the hand , the internal holding capacity of this filter is as great as our standard filter. Anew o-ring for the water sensor is...

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      • Quicksilver 35-87946Q04 Fuel Filter Kit Image
        $13.19
        $10.99

        Quicksilver 87946Q04 Fuel Filter Kit Quicksilver 87946Q04 Inline Fuel Filter Element is designed for select Mercury and Mariner 6-60hp 2-stroke outboards equipped with under-cowl fuel filter assemblies featuring a screw-on bowl. This replacement filter...

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      • Quicksilver 35-8M0168897 Fuel Filter Image
        $22.19
        $18.49

        Mercury - Mercruiser 35-8M0168897 Fuel Filter  The Mercury Fuel Filter Kit 8M0168897 is designed for select 75–115HP Mercury 4-stroke outboards, providing dependable protection against water, moisture, and fuel contaminants. This kit includes...

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      • Quicksilver 8M6013371 Suzuki 15412-92J00 Fuel Filter
        $20.49
        $17.99

        Quicksilver 8M6013371 Suzuki 15412-92J00 Fuel Filter Protect your Suzuki outboard with the Quicksilver 8M6013371 Fuel Filter. Designed to match OEM performance, it effectively removes 99% of fuel contaminants. Compatible with DF115A, DF140A, DF115SS...

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      Marine Fuel Filters

      Boat fuel filters are an essential part of your vessel’s marine fuel system. These filters remove dirt, debris, and water from fuel before it reaches the engine, helping prevent clogs, corrosion, and engine performance problems.

      Without proper filtration, contaminants can enter the fuel system and damage sensitive engine components. Regularly replacing marine fuel filters helps maintain smooth engine operation and protects your investment.

      Marine Fuel Water Separators

      Many modern marine fuel filters include a fuel water separator. These systems trap water that enters the fuel tank through condensation or contaminated fuel. Removing water from fuel is critical because water can cause corrosion and poor engine performance.

      Fuel water separators are commonly used with permanent boat fuel tanks and are often installed between the fuel tank and the engine to provide an additional layer of protection.

      Types of Boat Fuel Filters

      Inline Fuel Filters

      Inline marine fuel filters are installed directly within the fuel line and provide basic filtration for small debris and contaminants.

      Spin-On Fuel Water Separators

      Spin-on fuel filters are commonly used in marine applications and combine filtration with water separation. These filters are easy to replace and offer excellent protection for outboards, inboards, and sterndrive engines.

      Why Fuel Filter Maintenance Matters

      Fuel system maintenance is critical for preventing engine trouble on the water. Over time, fuel filters can become clogged with debris or contaminated fuel, restricting fuel flow and reducing engine performance.

      Replacing worn filters helps keep fuel moving freely through boat fuel lines and hoses and ensures clean fuel reaches the engine.

      Shop Marine Fuel Filters at Wholesale Marine

      Wholesale Marine carries a wide selection of reliable boat fuel filters and marine fuel water separators designed to protect your engine and maintain proper fuel delivery. Whether you need a replacement inline filter or a complete fuel water separator system, you’ll find the marine fuel filtration components needed to keep your boat running smoothly.

      Boat Fuel Filter FAQs

      What does a marine fuel filter do?

      A marine fuel filter removes dirt, debris, and water from fuel before it reaches the engine. This helps protect sensitive engine components and ensures reliable performance.

      How often should boat fuel filters be replaced?

      Most marine fuel filters should be inspected each boating season and replaced at least once per year or according to the engine manufacturer’s maintenance schedule.

      What is a fuel water separator?

      A fuel water separator is a type of fuel filter designed to remove water from fuel before it reaches the engine. Water separators are commonly used in marine fuel systems to prevent corrosion and fuel contamination.

      Can a clogged fuel filter cause engine problems?

      Yes. A clogged fuel filter can restrict fuel flow to the engine, causing hard starting, loss of power, sputtering, or stalling.

      Where is a boat fuel filter located?

      Fuel filters are typically installed between the fuel tank and the engine along the fuel line. Many boats use a primary water separating filter near the tank and a secondary filter near the engine.