Genuine STIHL muffler gasket

fits many saws from the 034, 036, 038, 044, 440, 441, 046, 460, 064, 066, 660, 661 etc etc

This type is the new thin style and it gets a great seal

Only thing is it's good to replace it now and then and also to check that the muffler bolts are tight as well.

We all know there can be a fair bit of vibration with chainsaws