Stihl 4140 020 1204 Cylinder & Piston Kit

This genuine Stihl cylinder and piston assembly is a complete top-end replacement designed for select small two-stroke engines, including those used in the Stihl FS 38 and FS 45 brushcutters. Manufactured from durable aluminium alloy with a precision-machined cylinder bore and matching lightweight piston, it helps restore engine compression, power output, and smooth operation when replacing worn or damaged components. Supplied with the piston and associated installation parts, this OEM assembly is engineered to Stihl specifications for proper fit, dependable sealing, and efficient heat dissipation.