Pulley starter brushcutter chainsaw hedge trimmer ECHO compatible outer diameter (mm): 63 inner diameter (mm): 14,5 / 18 for models: ECHO CLS-4600, CLS-4610, DM-9, LBB-4000, PB-400 E, PB-410, PE-310 PE-311, PE-3100, SRM-310, SRM-311, SRM-340, SRM-360 SL, SRM-3000, SRM-3100 SRM-3110, SRM-3400, SRM-3605 U, SRM-3800, SRM-4600, SRM-4605 Part No.: 40271596 Original part No.: