20" bar and chain combo (.325 .050 78 drive links) for the Husqvarna small mount chainsaws. This bar and chain will fit several different Husqvarna and Jonsered chainsaws. It will fit the 340 345 350 51 55 346xp 450 455 460 rancher and others. Some of these saws came with a 3/8 chain so please be sure that yours takes the .325 bar and chain. The easiest way is to count your drive links on your chain or you can measure from rivot to rivot on the side of the chain.