Ignition coil for chainsaw engines 334T 335XPT 338XPT 336 339 340 345 346 350 351 353 355 357 359 362 365 371 372 385 390 455 460 461 570 575 HUSQVARNA Original part number: 008664 Original part number: 537.1621.01- 537 1621 01 - 537 16 21-01 - 537162101 - 544.0470.01 - 544047001 - 544 04 70-01 - 544 04 70 01 AT