Guide bar and Chain Kit for MS390 / MS391 / 039 20" chainsaws 

INCLUDES:

AFTERMARKET 20" 1.6MM 3/8" 75LP GUIDE BAR & OREGON 20" 1.6MM 3/8" 75LP CHAIN

72 Links of 3/8 75LP OREGON top quality chain made in Canada

Count the number of drive links in your old chain to determine your chain length. SEE SECOND PICTURE.

The drive links are the bottom parts of the chain that sit down into the guide bar.

Take chain off chainsaw, lay flat and count the drive links in 2's e.g. 2,4,6,8,10 for the easiest way to find you chain lenght.

Chain Specification
Bar Length: 20" (72 chain Links)
Chain Pitch: 3/8" 75lp
Chain Gauge: .63" / 1.6mm
Chain File Size: 5.2mm / 13/64"

FITS:

Stihl 039 guide bar

Stihl MS 390 guide bar

Stihl MS 391 guide bar