Description

0000 997 5520 Stihl Tension Spring (Genuine OEM)

The Stihl 0000 997 5520 tension spring is a genuine OEM replacement part engineered to meet Stihls factory specifications for professional, high-output chainsaws. This spring provides the precise and consistent tension required for reliable mechanical operation, even under extreme load, high RPM, and continuous vibration.

Manufactured from high-strength spring steel, this component is designed for durability and long service life in demanding forestry and logging applications. Using a genuine Stihl tension spring ensures exact fitment, correct spring force, and dependable performance compared to aftermarket alternatives.

Product Details

Part Number: 0000 997 5520
Brand: Stihl
Part Type: Tension spring
Material: High-strength spring steel
OEM Status: Genuine Stihl replacement part
Installation: Direct-fit OEM replacement

Performance & Benefits

Provides consistent and reliable spring tension
Designed for heavy-duty, professional chainsaw use
Withstands high RPM, vibration, and continuous operation
Ensures proper mechanical function and component alignment
Maintains original equipment performance and safety

Compatible Stihl Chainsaw Models

MS 661
MS 661 C-M
MS 661 C-M R
MS 661 R

Compatibility is based on official Stihl parts listings. Always verify correct fitment using your chainsaws illustrated parts diagram and serial number range before ordering.

Why Choose a Genuine Stihl Tension Spring?

Genuine Stihl OEM springs are manufactured to exact tolerances for correct tension, durability, and long-term reliability. Using original parts helps prevent premature wear, improper operation, and unnecessary downtime.