(3) Sprocket Rim Assembly for Stihl. Sprocket fits Stihl 024, 026, MS260, MS270, MS280, MS281. .325" 7 T. MS240, 026 (adjustable oiler) (After S/N X 25809074), OEM # 1121 007-1037 Rim Sprocket, Spur Sprocket # 1121-640-2004.Replaces:CARLTON 6-10091...