HUSQVARNA compatible brushcutter clutch For models: HUSQVARNA 245 , 39 R 40 , 45 49 , 240 Code: 40271698 Original part number: 503 17 31-02 , 503 17 31-01 503 16 13-01 , 501 63 60-04 501 63 60-06 HUSQVARNA