ECHO CS-310 CS-352 ES Chainsaw Flywheel & Nut

Flywheel and nut fits Echo CS-310 and CS-352 (ES) chainsaws. The flywheel mounts on the crankshaft and carries the magnets that trigger the ignition coil, as well as the fan blades that cool the engine and the pawls that engage the recoil starter cord. The nut secures the flywheel firmly onto the crankshaft taper. If the flywheel cracks, its magnets weaken, or a fin breaks off, or the nut works loose, this can cause poor or no spark, overheating from reduced cooling airflow, or the recoil starter failing to engage properly. Fitting a replacement flywheel and nut restores correct ignition timing, cooling and starter engagement.

Fits specified models:

• Echo CS-310
• Echo CS-352 (ES)

Replaces part number:

• A409-000350
• 900515-00008