The Husqvarna 537038501 Ignition Module is a genuine OEM replacement part designed for various Husqvarna chainsaws and outdoor power equipment. This critical component ensures proper engine ignition, delivering reliable performance. It replaces previous Husqvarna part numbers 503901401, 503620202, and 503620203, ensuring compatibility and optimal function for a wide range of models including 340, 345, 346XP, 350, 351, 353, 357XP, 359, 362, 365, 371, 372XP, 385, 390XP, 394XP, 395XP, 445, 450, 455 Rancher, 460 Rancher, 461, 570, 575XP, 576XP, 576XP AutoTune, and 576XP G.