Enhanced Performance: Restore lost power and smooth operation with a precision 46mm piston and cylinder kit engineered for optimal compression and efficient combustion on Stihl 029, MS290, 039, and MS390 models. Premium Compatibility: Designed as a direct-fit replacement for Stihl OEM 1127 020 1210, this assembly ensures seamless installation on STIHL 029, MS290, 039, and MS390 chainsaws, matching original factory specifications. Comprehensive Kit: Includes cylinder head, piston, piston pin (10mm), two piston rings, and two circlips—everything needed for a complete top-end rebuild, reducing downtime and ensuring reliable engine repair. Durable Construction: Crafted from high-grade materials and built to withstand demanding professional use, the components resist wear, heat, and corrosion—prolonging the life of your chainsaw even in rigorous cutting environments. Hassle-Free Installation: Designed with both pros and DIYers in mind, this kit enables a straightforward installation process; clear sizing and precise tolerances support quick, frustration-free repairs and maintenance.

Replacement Chainsaw Cylinder Head Assembly

Fits Stihl Models: MS290, MS390, MS310 029 039 - 46mm

Replaces OEM #: 1127 020 1210

Package includes: 1 x Cylinder Head, 1 x Piston, 1 x Piston Pin (10mm), 2 x Piston Rings, 2 x Circlips

Restore engine power and operational reliability with the FitBest 46mm Cylinder Head Piston Kit, thoughtfully engineered for Stihl 029, MS290, 039, and MS390 chainsaws. Whether you’re tackling heavy firewood jobs, professional cutting, or essential property tasks, this comprehensive top-end replacement set is designed to meet the strict standards of chainsaw repair professionals and dedicated users.

The kit includes a robust cylinder head, precision-machined 46mm piston, 10mm piston pin, two piston rings, and two circlips—providing all the components needed for a complete, efficient rebuild. Each part is carefully manufactured to match OEM 1127 020 1210 specifications, ensuring seamless compatibility with Stihl chainsaw models. The result is swift, accurate repairs that restore compression, minimize oil consumption, and return your engine to reliable working order.

Built to excel in challenging work environments, the included parts utilize premium materials to resist overheating, scoring, and premature wear. Whether you’re rebuilding a workhorse saw after years of use or replacing a damaged cylinder from an unexpected breakdown, this kit offers both beginners and seasoned technicians the confidence of a direct-fit solution.

Optimized for durability and practical installation, the FitBest Cylinder Head Piston Kit serves as the cornerstone of preventive maintenance and long-lasting repair. Ideal for proactive chainsaw owners seeking to address power loss, smoke, or starting difficulties, this kit helps extend tool lifespan and performance. With all essential components in one package, avoid multiple trips to the hardware store and minimize jobsite downtime—choose FitBest for consistent results in chainsaw maintenance and engine restoration.