503717901 Husqvarna Switch ON/OFF

503717901 Husqvarna Switch ON/OFF. No original manufacturer’s packaging is available.  503089702, 503089701, 501526601, 501633801, 501815201 has been superseded to 503717901.  Fits Husqvarna 136, 137, 141, 142, 254, 257, 261, 268, 272, 281, 3120, 395, 55 Rancher.  Fits Husqvarna 133 (1980-10); 133 (1980-10); 133 (1981-12); 133 (1981-12); 136 (1998-09); 136 (2001-05); 136 (2001-09); 136 (2003-01); 136 (2003-01); 136 (2003-06); 136 (2003-06); 136 (2004-01); 136 LE (2004-03); 136 LE (California) (2001-06); 137 (2004-10); 137 (2004-10); 137 (2005-03); 137 (2005-03); 137 (2005-09); 137 (2006-01); 137 (2006-12); 137 (2009-03); 137 (2009-03); 137 e (2004-10); 137 e (2004-10); 137 e (2005-03); 137 e (2005-03); 137 e (2005-09); 137 e (2005-09); 137 e (2006-01); 137 e (2006-01); 137 e (2006-12); 137 e (2006-12); 141 (1998-09); 141 (1998-09); 141 (2001-05); 141 (2001-05); 141 (2001-09); 141 (2003-01); 141 (2003-01); 141 (2003-06); 141 (2004-01); 141 LE (2004-05); 142 (2004-10); 142 (2004-10); 142 (2005-03); 142 (2005-03); 142 (2005-09); 142 (2006-01); 142 (2006-01).