Muffler Pipe Fits Stihl Chainsaw Fits Stihl HS81 HS86R PARTS 4237 140 3400 Brand New AfterMarket Replacement Parts For Chainsaw & Cut-Off Saws Package Includes all the parts in the picture Super fast Shipping 4237 140 3400 OEM Name or Part Numbers Are For Reference Only And Do Not Imply OEM Manufacture