Air Filter for Husqvarna 51 55 Rancher Chainsaw Replaces 503 60 83-01 Fuding Jingyi Rubber & Plastic Co., Ltd. Base Info Model NO.:Husqvarna 51 55 Description Pre:Carburetor Carb for Stihl Chainsaw 064 066 Ms660 New # 1122 120 0621 Next:Air Filter cleaner for Husqvarna 51 55 Rancher Chainsaw Replaces 503 60 83-01