Description
Overview:
This is a genuine Stihl metal spring designed for use in Stihl hedge trimmers, including the HS 81R and HS 81RC. It maintains the correct tension within the mechanism so moving parts operate smoothly and reliably under load. Made from durable spring steel, it is engineered to withstand repeated cycling and vibration typical of professional and domestic hedge trimming. The spring measures 15 mm coil length (0.59 in), 52 mm full length (2.05 in), and 20 mm width (0.79 in), providing a precise fit where specified by Stihl. As an OEM component (MPN 4237 791 3101 / 42377913101), it is a direct replacement that helps restore correct function when the original spring is worn, stretched, or broken, supporting consistent performance and longer tool life.
Key Features:
- Genuine Stihl part for assured compatibility and performance
- Durable spring steel construction for long service life
- Helps maintain correct mechanism tension for smooth operation
- Precise sizing: coil length 15 mm (0.59 in), full length 52 mm (2.05 in), width 20 mm (0.79 in)
- Suitable for frequent use in demanding hedge trimming tasks
- Direct replacement that matches OEM specification (4237 791 3101 / 42377913101)
- Supports reliable starting, control response, or component return where specified by Stihl
- Straightforward swap with basic hand tools in line with the machine's service manual
Typical Applications:
Replacing a fatigued or damaged spring within the hedge trimmer's mechanism to restore proper return and tension. Useful for routine maintenance to keep HS 81‐series and related models operating smoothly, reduce chatter or lag in moving parts, and maintain consistent control and cutting performance during regular garden and grounds care.
Also known as:
Hedge trimmer spring, hedge cutter spring, return spring, tension spring, trimmer coil spring, OEM spring for Stihl HS series.
Fits Models:
HS 81, HS 81 R, HS 81 RC, HS 81 T, HS 81 TC, HS 82, HS 86, HS 86 R, HS 86 T, HS 87
Alternate Part Numbers:
4237-791-3101, 42377913101
Product Specifications
| L&S Part No. | 4237 791 3101 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 42377913101 |
| Unit of Sale | 1 |
| Applications | HS 81, HS 81 R, HS 81 RC, HS 81 T, HS 81 TC, HS 82, HS 86, HS 86 R, HS 86 T, HS 87, HS81, HS81R, HS81RC, HS81T, HS81TC, HS82, HS86, HS86R, HS86T, HS87 |
| Machine Type | Hedgetrimmers |
| Fits Brands | Stihl |
| Fits Models | HS81, HS86 | HS82 | HS87 |
