Compatible with the Husqvarna 450 445 chainsaw flywheel/magnet assembly, magnet rotor, fan starter ring gear, engine parts.

This is a genuine Husqvarna 450 and 445 chainsaw flywheel (magnetic flywheel). This vital rotating engine component contains a high-performance magnet, a cooling fan, a starter ring gear, and a counterweight. It replaces original flywheels whose performance is compromised by corrosion, wear on the starter ring gear, magnet demagnetization, dynamic imbalance, or damage to the keyway. This ensures smooth engine starting, precise ignition, stable operation, and efficient heat dissipation.