COMPLETE PISTON CYLINDER KIT WITH HOLE FOR DECOMPRESSION VALVE FOR CHAINSAW COMPATIBLE HUSQVARNA MODELS: 55 254 CYLINDER DIAMETER (mm): 46 WEIGHT: 450 g CODE: 40270493 ORIGINAL CODE: 503 609171 503 609171 503 609171 503 609171 503 609171 503 924171 503 924171 503 924171 503 924171 503 924171 503 169171 503 169171 503 169171 503 169171 503 169171 AH