Suzuki Outboard Fuel Filters

Suzuki's fuel-injected DF outboards depend on clean, water-free fuel to keep injectors and the high-pressure fuel pump working correctly. A clogged or water-saturated filter shows up as hesitation, stalling at low rpm and hard starting, and in the worst case as an expensive fuel-system repair.

What Suzuki's schedule actually says

• Engine-mounted low-pressure fuel filter: inspect at the initial 20 hours, then inspect every 100 hours or 12 months; replace every 400 hours or 2 years.
• Boat-mounted water-separating fuel filter: Suzuki recommends installing one between the tank and the motor; replace the element every 12 months (sooner if the filter maker says so).
• DF70A and larger carry an integral fuel filter/water separator on the engine with a water-in-fuel alert. When the alert sounds, stop and drain the separator.
• DF25A/30A, V6 and DF300B/350A: the low-pressure fuel pump filter is replaced every 1,000 hours; DF150A–DF250 also have a high-pressure fuel filter replaced every 1,000 hours.

Boat Max Online stocks genuine Suzuki OEM fuel filters, separator elements and filter assemblies for the DF lineup. Order by your model and year, or use the Suzuki parts catalog on the product pages.

Authorized Suzuki Marine dealer. Free shipping on orders over $149 to the lower 48 states.

Source: Suzuki owner's manuals, Maintenance Schedule and Low Pressure Fuel Filter sections.