FUEL FILTER Replaces: Hus 503 44 32-01, 503-4432-01, 5018776-01, 5018776-02, 5021618-01 For 3/ ... 16" fuel line FUEL FILTERReplaces: Hus 503 44 32 ... -01, 503-4432-01, 5018776-01, 5018776-02, 5021618-01For ... , 2101, & 394 Pro (165R, RX, 244RX) fuel filter (Replaces Hus 503 44 32-01)