Rotary 1617. SPROCKET CHAINSAW .325" X 7T. Fits 029, 034, 036, and 039 Stihl. Drum ID: 2.9880, Durm Depth: 11/16", Hole Size: 1/2", Shaft Size: .3937 or 10mm. Needle bearing included.

Pro Spur Sprocket / .325" Pitch, 7 Teeth

Replaces:

Carlton A7-ST-613-SS, GB ST316-J7N, Herr 193-A7, Ref No SST316-27N, Stihl 1125 640 2005NHC 085-6337, Oregon 38145X, Rotary 1617, Stens 085-633

Stihl 029, 034, 036, 039, MS290, MS360, MS390, 034 Super and MS310

Pitch: .325", Crank Diameter: 10 mm, Drum ID: 2.985 ", Teeth: 7, Bearing included

Replaces
HERR: 191-L7

Fits Models
STIHL: 024, 026 (Before#X258090, Stihl 029, 034, 036, 039, MS290, MS360, MS390, 034 Super and MS310