Stihl MS251 Flywheel: 1143 400 1233, 11434001233

Genuine Stihl MS251 Flywheel

Replaces: 11434001233, 1143-400-1233, 1143 400 1233

Fits Model: MS231, MS231C, MS251, MS251C

Keep your STIHL MS251 chainsaw operating efficiently with this STIHL Flywheel (1143 400 1233). The flywheel is an important engine component that helps maintain smooth engine operation while also playing a vital role in the chainsaw’s ignition and cooling systems.

The flywheel rotates with the engine crankshaft and uses its magnetic components to work with the ignition coil, generating the electrical pulses required for spark generation. It also helps regulate engine rotation and supports airflow through the engine cooling system.

If your original flywheel is damaged, worn or faulty, replacing it can help restore reliable ignition operation and proper engine performance.

Product Features

• STIHL replacement flywheel for the MS251 chainsaw.
• STIHL part number: 1143 400 1233.
• Designed to work with the engine’s ignition system.
• Helps provide consistent ignition timing and engine operation.
• Supports engine cooling through its integrated fan design.
• Manufactured to STIHL specifications for correct fitment.
• Ideal for chainsaw repairs and engine maintenance.