Genuine STIHL OEM Clutch Spring 0000-9975-902 (Single Spring)

Restore Safe Idling and Proper Clutch Engagement

Is your chainsaw chain or trimmer head spinning constantly while the engine is idling? A stretched, fatigued, or broken clutch spring is usually the culprit. Restore the safety and performance of your equipment with the Genuine STIHL OEM Clutch Spring (Part Number: 9975 902).

Using cheap, aftermarket springs can lead to incorrect engagement RPMs, causing your cutting attachment to spin unpredictably or bog down under load. This factory-certified STIHL spring provides the exact tension required to keep the clutch shoes securely retracted until you squeeze the throttle.

IMPORTANT PURCHASE NOTE: This listing is for ONE (1) individual clutch spring only. Many STIHL equipment clutches require a set of three (3) springs for a complete replacement. Please verify your equipment's requirements and adjust the quantity in your cart accordingly before checkout.

Key Features & Benefits:

100% Authentic OEM Component: Direct replacement for part number 9975 902. Guaranteed exact tension and factory quality.

Fixes Idle Spinning Hazards: Restores proper clutch shoe retraction, ensuring your chain or trimmer head stops moving when you release the throttle.

High-Tensile Durability: Manufactured from premium, heat-treated steel designed to resist stretching, heat fatigue, and breakage during high-RPM operation.

Exact Fit Installation: Engineered to precise OEM tolerances for a hassle-free repair process.

Broad Compatibility: This standard OEM clutch spring is widely used across a massive range of STIHL chainsaws, trimmers, and blowers, including but not limited to popular models like:

• MS 170, MS 180, MS 210, MS 230, MS 250, MS 270, MS 290
• 017, 018, 021, 023, 025, 029
• Various FS Trimmers and BG/BR Blowers

(Note: Please consult your specific equipment's parts diagram to verify that part number 9975 902 is the exact match for your clutch assembly before purchasing.)