Mercury / Mariner Under-Cowl Inline Fuel Filter – 20 Micron (OEM)

Protect your engine with the Mercury Quicksilver 20 Micron Under-Cowl Inline Fuel Filter (879885Q), designed for Mercury and Mariner FourStroke and Verado outboards. This OEM replacement filter fits directly under the engine cowl and prevents water, dirt, and other contaminants from reaching your outboard’s fuel system.

Key Benefits of This Mercury Outboard Fuel Filter

• OEM fit and quality – meets Mercury Marine factory specifications for reliability and performance

• 20 micron filtration – removes harmful particles, water, and fuel contaminants that rob horsepower

• Under-cowl design – mounts neatly under the outboard engine cover for protection and easy access

• Translucent housing – quickly check fuel quality and spot debris before it causes damage

• Easy installation – reuses existing hose clamps, no extra tools or hardware required

Compatibility

This Quicksilver inline fuel filter fits a wide range of Mercury and Mariner EFI FourStroke and Verado outboards, including:

• 30/40 EFI FourStroke

• 40/50/60hp EFI FourStroke (996cc, 4-cylinder)

• 75–115hp FourStroke 1.7L (Serial No. 1B366823–2B094995)

• 75–115hp FourStroke 2.1L (Serial No. 2B094996 & up)

• 150 EFI FourStroke (Serial No. 1B905505 & up)

• 135–400hp Verado outboards

Why Choose Quicksilver Fuel Filters?

For over 65 years, Quicksilver has been the leader in Mercury outboard parts and accessories, trusted by boaters and marine professionals worldwide. Every Quicksilver fuel filter is tested in the harshest conditions to guarantee maximum performance and corrosion protection. Choosing Quicksilver means choosing OEM quality, proven durability, and peace of mind on the water.