STIHL Sprocket Cover Nut - 0000 955 0801

Key Features

Restores factory-spec chain guard tension and clutch assembly stability with exact OEM dimensional accuracy.

• OEM Specification: Exact metallurgical and geometric match for manufacturer part 0000 955 0801, eliminating fitment gaps on legacy and current model platforms.
• Corrosion-Resistant Finish: Zinc-plated carbon steel composition engineered to withstand sap abrasion, hydraulic fluid exposure, and ambient humidity during sustained field use.
• Precision Torque Retention: Controlled thread pitch and calibrated preload capacity prevent rotational slippage under high-vibration cutting loads and sudden kickback forces.
• Standard Drive Geometry: Universal socket interface aligns with common mechanic tooling for rapid installation and removal during scheduled maintenance cycles.

Product Details

This fastener secures the auxiliary spur gear and chain tensioner bracket directly to the cylinder crankcase interface. When the original unit degrades, strips, or shears, protective shroud clearance expands, introducing operator safety risks and accelerating guide bar wear. Replacing compromised hardware restores factory-rated structural rigidity and ensures the drive tooth remains properly seated against the clutch drum. Rated for continuous operation between -20°C and 90°C, the component installs directly without welding, thread-locking adhesives, or custom adapter plates.

Compatibility

• MS 170, MS 180, MS 192
• MS 200, MS 210, MS 230, MS 250, MS 261
• MS 310, MS 362
• MS 440, MS 461, MS 462