Savior 34mm Cylinder Kits Replace MPN 4140 020 1202 41400201202 for STIHL FS55 FS45 BR45 KM55 HL45 HS45 HS55 New High Quality Aftermarket Cylinder Piston Kit Replacement MPN: 4140 020 1202 41400201202 Fitment STIHL FS55 FS45 BR45 KM55 HL45 HS45 HS55