Poulan Clutch Washer part# 15733 supersedes to part# 530-015733. This washer has an outside diameter of 1-1/8" and an inside diameter of 1/2". Following is a list of chainsaw models that use this part; 3000, 2700, 3000CB, 3100, 3300, 3350, 3450, 3500, 3600, 3750, 2800, 285, 305, 335, PP380, PP285, PP305, PP336C, PP365, and PP365C. There may be models that use this part that we do not have listed here. Please refer to your owners manual or a parts breakdown for your model, to assure that this is the correct part for your machine, before you order.