HUSQVARNA JONSERED brushcutter starter pulley outer (mm): 65 Inner (mm): 12,5 for models: HUSQVARNA 39 R, 40, 40, 45, 49, 240 R, 245 R, 245 RX, 335 XPT JONSERED 2041, 2045, 2050, GR 41, GR 44, GR 50, RS 41, RS 44 Part No.: 40271588 Original part No.: 537 20 19-01, 506 01 64-01