The Husqvarna 544442201 is an authentic OEM ignition lock designed for a wide range of Husqvarna Rider series lawn tractors and zero-turn mowers. This genuine replacement part ensures reliable starting and proper electrical system function, maintaining the safety and performance of your equipment. It is a direct fit for numerous models including Rider 11 C, 13 C, 15 C, 16 C, 155, 175, 213 C, 214 C, 214 TC, 216, 316 TX, 318, 320 AWD, 418 Ts, 420 Ts AWD, 422 Ts AWD, 520 Ts AWD, 525 Ts AWD, P 520 D, P 525 D, P 525 DX, P 525 TX, P 525 TXS, P 525 TXi, P 530 DX, P 535 HX, and P 535 TX series, including AWD variants.