Genuine STIHL Clutch Tension Spring – 0000 997 5520

The genuine STIHL 0000 997 5520 Clutch Tension Spring is an OEM clutch component used within the centrifugal clutch assembly of selected STIHL professional chainsaws. Manufactured from hardened spring steel, this spring maintains correct clutch shoe tension and engagement characteristics, ensuring smooth power transfer from the engine to the drive sprocket. Replacing worn, stretched or broken clutch springs helps restore proper clutch operation, improves chain control and reduces premature wear on surrounding clutch components.

Fits STIHL Models

Professional Chainsaws

• MS 661
• MS 661 C
• MS661
• MS661C

Related Parts Often Replaced Together

• Clutch Shoe – 1144 162 0802
• Cover Washer – 1144 162 1000
• Needle Cage Bearing – 9512 933 2382