Chain tensioning bolt compatible with HUSQVARNA chainsaw models: 2141, 340, 340 E, 345, 345 E, 346 XP New Edition, 350, 351, 353 357 XP, 359, 445 E, 445 e-Series, 450 E, 450 e-Series JONSERED models: 2141, 2145, 2149, 2150, 2159, CS2141, CS2145 CS2147, CS2152, CS2153, CS2156, CS2159 CODE: 176-500 ORIGINAL CODE: 503 86 91-01 537 07 12-01 CZ