Genuine Husqvarna Switch On/Off Part #: 503 71 79-01 Fits Husqvarna: 268, 272K, 268K, 272 XP, 61, 55, 262 XP, 395XP, 246, 395 XP, 3120, 395 XP EPA, 42, 254, 288, 261 EPA, 257, 394 XP, 242, 281, 3120 EPA, 288 EPA, 394 XP EPA, 136 LE, 141 LE, 55 RANCHER EPA, 51, 55 EU1, 142 E, 137, 288 XP, 137 (EXPORT), 3120K EPA, 3120K, 281 XP, 137 E, 141, 55 EPA, 136, 55 RANCHER, 137 (NORTH AMERICA), 51 EPA, 142, 3120 XP, 142 (NORTH AMERICA), 142 (EXPORT)