Fuel Filter Element & O-Ring | MMD Powerline 91606 MMD Powerline Fuel Filter Element & O-Ring | 91606 Used on early model carbureted Crusader engines with canister style metal fuel bowl filter assembly. Fits Crusader CH190, CH220, CH270, model 220, & model 270 marine engines up to serial number 90232 Fits Crusader C305 and C350 model marine engines with serial number 81833 & below Fits Crusader CH350 450 cu. in. & model 350 454 cu. in. Fits inside the metal fuel bowl filter assembly Includes the o-ring for the metal bowl Replaces discontinued Crusader 91606 Replaces OMC 982230