Description
Overview:
This Tension Spring is a genuine Stihl component for hedge trimmers, engineered to maintain consistent tension within key mechanisms for smooth, reliable operation. Manufactured from durable spring steel, it is a helical extension spring with hooked ends for secure engagement and accurate fitment. Designed for use with Stihl HS45 and HS52 models, it helps restore correct return force in moving parts, reducing slack and erratic behaviour caused by a worn or stretched spring. Supplied to OEM specification under part number 4228 162 7903, it offers dependable performance in regular use and during demanding trimming work. Ideal for routine servicing or repairs, it keeps controls and linkages working as intended, prolongs component life, and supports safe, predictable machine performance.
Key Features:
- Genuine Stihl part for assured compatibility and correct fit
- OEM specification: 4228 162 7903 for straightforward identification
- Tough spring steel construction resists fatigue and deformation
- Helical tension design with hooked ends for secure, direct installation
- Maintains consistent return force to prevent slack and poor response
- Stable performance under vibration and repeated cycling
- Supports smoother operation and reduces unnecessary wear on linked parts
- Quick to fit with basic tools; no modifications required
- Suitable for HS45 and HS52 hedge trimmers used in domestic and professional settings
Typical Applications:
Used during servicing or repairs to replace a fatigued, stretched, or broken tension spring in Stihl hedge trimmers. Typical roles include maintaining return tension in control linkages and other tensioned assemblies so the machine responds correctly. Suitable for restoring reliable operation after heavy use, exposure to the elements, or long storage.
Also known as:
Extension spring, return spring, pull-back spring, helical tension spring, linkage return spring, mechanism spring, control spring, Stihl HS series tension spring.
Fits Models:
HS 45, HS 52, HS45, HS52
Alternate Part Numbers:
4228-162-7903, 42281627903
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