Replacement flywheel designed to fit Stihl MS290, MS310, and MS390 chainsaws — direct replacement for OEM part number 11274001200. Restores proper ignition timing and engine balance so your saw starts reliably and runs smoothly. Key benefits Restores performance: Replaces a worn, cracked, or damaged flywheel to recover correct ignition timing and consistent spark generation. Reduces downtime: A readytoinstall replacement gets the saw back in service quickly without the need for expensive core repairs. Built to match OEM fit: Engineered to match the OEM 11274001200 dimensions and mounting pattern for a secure, precise fit and correct balance. Features and key attributes Compatibility: Designed specifically to fit Stihl MS290, MS310, MS390 models and to OEM 11274001200. Functionality: Flywheel provides the required rotational mass and houses the magnetic poles used by the ignition system to generate the spark. Fit and finish: Manufactured to meet OEM fit and dimensional standards so it installs like the original part. Durability: Constructed for dependable service life to withstand normal operating stresses and vibration. Installation: Bolton replacement that uses the original mounting hardware and requires no machining or modification. How it solves common problems Worn or damaged flywheel causing hard starts, misfiring, or irregular engine idle — replacing with this part restores consistent ignition timing and engine response. Broken or outofbalance flywheel causing excessive vibration — a correctfit replacement returns smooth operation and helps prevent premature wear of other components. Typical use cases Routine : a cracked or chipped flywheel discovered during routine maintenance to restore safe, reliable engine operation. Field service for forestry or property crews: Keep a spare flywheel on hand to minimize downtime when a unit fails on the job. Refurbishing used saws: When rebuilding or servicing a used MS290/MS310/MS390, install a directfit replacement flywheel to ensure correct performance and ignition timing. What to expect Directfit replacement for OEM 11274001200 for MS290, MS310, MS390 models. Installs using original hardware and requires standard tools; recommended to follow manufacturer torque and installation procedures. Does not include other components (stator, ignition coil, or starter parts); intended strictly as the flywheel assembly. Compatibility reminder Confirm fit by matching part number 11274001200 and your chainsaw model (MS290, MS310, MS390) before . Professionalgrade replacement that restores ignition reliability and engine balance with an OEMcompatible fit for Stihl MS290, MS310, and MS390 chainsaws.