Cylinder and piston kit GEKO for Stihl 180 — bore 38 mm, replacement parts

GEKO cylinder and piston kit for Stihl 180 with a 38 mm bore is a replacement engine component set intended to restore compression and mechanical performance in compatible chainsaw two-stroke engines. The kit includes a single cylinder and a matching piston sized for a 38 mm cylinder bore, designed to fit models that use this bore dimension and to serve as a repair option when the original parts show wear, scoring or reduced compression.

Advantages

This cylinder and piston kit offers direct-fit geometry for engines that accept a 38 mm bore, manufactured to provide durable contact surfaces and restore proper piston-to-cylinder tolerances. The set is supplied as a matched combination to reduce installation adjustments and help re-establish engine compression and power delivery. Using a replacement cylinder and piston can address common faults such as loss of power, excessive smoke or difficulty starting caused by worn internal components.

Suitable for

• Repairing Stihl 180 chainsaws and other compatible two-stroke engines specifying a 38 mm bore
• Replacing worn or scored cylinder walls and pistons to restore compression
• Routine engine maintenance where reuse of original bore-relevant components is required
• Workshop servicing by professional mechanics and DIY owners familiar with small engine repair

Key specifications

• Bore diameter: 38 mm
• Contents: cylinder and piston (matched set)
• Application type: two-stroke chainsaw engine components
• Material characteristics: metal cylinder and piston surfaces designed for combustion chamber use
• Intended function: restore compression, reduce internal wear, return engine performance

How to use

Before installation, confirm engine compatibility with a 38 mm bore and inspect the crankcase, bearings and connecting components for concurrent wear. Remove the old cylinder and piston following the chainsaw manufacturer's service procedure, clean mating surfaces and check gasket and seal condition. Fit the new piston and cylinder as a matched pair, ensuring correct piston ring orientation and torque settings for cylinder fastening according to service specifications. After assembly, run the engine and verify compression, idle stability and proper throttle response.

Usage recommendations

Use appropriate gaskets, seals and manufacturer-recommended fasteners during installation, replace related wear items (rings, gaskets, bearings) as needed, and follow safety procedures when working on fuel and ignition systems. If uncertain about fitment or installation steps, consult a qualified small-engine technician.