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- 1142 400 1200 – STIHL Flywheel (Genuine OEM Part)
Description
1142 400 1200 – STIHL Flywheel (Genuine OEM Part)
The STIHL 1142 400 1200 is a genuine OEM flywheel designed specifically for M-Tronic–equipped STIHL chainsaws. This flywheel regulates crankshaft rotation and generates the magnetic signal required by the ignition and M-Tronic engine management system to deliver precise spark timing and optimal engine performance.
Manufactured to STIHL’s original equipment specifications, this flywheel is precision-balanced and constructed from high-strength materials to withstand high RPM, heat, and continuous professional use. Using a genuine STIHL flywheel ensures correct ignition timing, smooth engine operation, and reliable M-Tronic system function.
Product Details
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Manufacturer Part Number: 1142 400 1200
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Brand: STIHL
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Part Type: Flywheel
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System: Ignition system / M-Tronic engine management
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Function: Regulates engine rotation and supports ignition timing
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Material: Precision-balanced metal construction
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OEM Status: Genuine STIHL OEM replacement
Function
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Stabilizes crankshaft rotation
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Generates magnetic field for ignition and M-Tronic control
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Supports accurate spark timing
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Promotes smooth, efficient engine operation
Compatible With STIHL Chainsaws
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MS 462 C-M R (Ignition system – M-Tronic)
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MS 462 C-M R Rescue (Ignition system – M-Tronic)
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MS 462 C-M (Ignition system – M-Tronic)
How It’s Used
This flywheel mounts to the crankshaft and rotates with the engine, interacting with the ignition module and M-Tronic system sensors to generate accurate spark timing and engine control signals.
Proper installation and correct torque are essential to ensure safe operation and correct ignition performance.
Suggested Maintenance
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Inspect the flywheel for cracks, damage, or missing fins
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Ensure the keyway and mounting surfaces are clean
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Verify correct torque during installation
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Replace the flywheel if damaged or out of balance
The STIHL 1142 400 1200 Flywheel is used in OEM-specified M-Tronic ignition system applications where precise timing, durability, and professional-grade performance are essential.
