Suzuki - Replacement Fuel Filter - 99105-20005A rough idle or mid range stumble is often a tired filter asking for attention. Swap in Suzukis 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