A rough idle or mid-range stumble is often a tired filter asking for attention. Swap in Suzuki’s Replacement Fuel Filter (99105-20005) and give your DF-series outboard the clean, water-free fuel it needs to run crisp all day.

Molded in a crystal-clear poly bowl with a white, 10-micron element at its core, this OEM cartridge slips straight into the clip on DF40-DF350 models. The see-through housing lets you spot debris or phase-separated gas before it reaches the rail, while the ribbed inlet and outlet keep ¼-inch hose locked tight with one clamp.

Why owners choose the genuine filter

• True 10-micron media captures varnish, rust, and sand without starving high-pressure pumps.

• Integrated water trap collects droplets in the sump—just crack the drain and go.

• UV-stable polycarbonate shell won’t cloud or crack after seasons in the splash-well.

• Exact 74 mm length seats perfectly in the factory bracket—no zip-tie “solutions.”

Install takes minutes: squeeze the old clip, swap hoses, prime the bulb, and fire up. You’ll feel smoother starts, cleaner throttle response, and the confidence that every gallon makes it to the injectors untainted—exactly how Suzuki engineered it.