This Cylinder with Piston 38 mm is a genuine Stihl engine top-end assembly for restoring power and reliability in petrol brushcutters and similar 2‐stroke machines. Built from durable aluminium alloy with a hard-coated bore, it is designed to maintain correct sealing and compression so your tool runs smoothly and starts consistently. With a 38 mm (1.5 in) bore, it is made to the original specification for a precise fit on popular models such as the Stihl FS 120 and FS 200. Use it to replace worn or scored cylinder and piston components, reduce blow-by, and bring performance back to factory levels. Genuine Stihl part 4134 020 1212 ensures full compatibility, dependable service life, and correct operation with the manufacturer’s ignition, carburation, and exhaust systems.

Key Features:
– Genuine Stihl part for accurate fit and long-term reliability
– Bore size: 38 mm (1.5 in) to match OEM factory dimensions
– Aluminium alloy construction with hard-coated bore for wear resistance
– Restores compression for easier starting and stable idle
– Recovers cutting performance and torque under load
– Direct replacement on listed models, no modifications required
– Manufactured to OEM tolerances to maintain engine balance and smooth running
– Suitable for routine top-end overhauls when power drops or fuel use rises

Typical Applications:
Used during engine maintenance or rebuilds when a brushcutter shows low compression, poor starting, loss of power, or visible cylinder scoring. Ideal for restoring performance on site or in the workshop, helping professional landscapers, grounds teams, and homeowners keep Stihl machines cutting efficiently through dense grass, weeds, and light scrub.

Also known as:
Top end kit, top-end rebuild kit, barrel and piston, cylinder barrel, pot and piston, replacement bore and piston set, engine top-end assembly for Stihl brushcutters.

Fits Models:
FS 120, FS 120 R, FS 200, FS 200 R, FS 250, FS 250 R, SP 200

Alternate Part Numbers:
4134-020-1212, 41340201212

Product Specifications