OIL SEAL + BEARING 12 x 37 x 12.25 mm HUSQVARNA - PARTNER for MOTORWHEELS MODELS 136 137 141 142 350 351 371 CODE : 017555 ORIGINAL CODE : 503056303 503 05 63-03 503 056303 503 0563 03 530056363 530 05 63 530 05 63 530 05 63 530 05 63-63 EM