Description
Overview:
This AV (anti‐vibration) spring is a genuine Stihl spare part for the MS 231 and MS 251 series petrol chainsaws. Built from durable spring steel, it forms part of the saw's vibration isolation system, helping to separate the engine unit from the handles so less vibration reaches the user. Replacing a tired or damaged spring restores smooth running, improves comfort, and can help reduce fatigue during longer cutting sessions. Supplied to Stihl specification for reliable fit and function, it is a straightforward like‐for‐like replacement for part number 1143 790 8301 on compatible machines, including "C" variants. Suitable for both professional users and keen DIY owners who want to maintain the performance and longevity of their Stihl chainsaw.
Key Features:
- Genuine Stihl OEM part for exact fit and dependable performance
- Restores the anti‐vibration system to reduce felt vibration at the handles
- Durable spring steel construction for long service life under demanding use
- Direct replacement for 1143 790 8301; no modifications required when fitting
- Helps improve control and comfort during prolonged cutting tasks
- Supports better tool longevity by limiting vibration transfer to components
- Compact, lightweight design consistent with the original factory part
- Suitable for professional forestry, landscaping, and domestic users alike
Typical Applications:
Replacement of worn, stretched, or broken AV springs to cure excessive vibration, buzzing handles, or unstable cutting feel. Ideal during routine servicing, after impacts, or when refurbishing used saws. Common in tasks like cutting firewood, pruning and limbing, storm clean‐up, and general site work where extended operation benefits from reduced vibration.
Also known as:
Anti‐vibration spring, AV spring, vibration damper spring, shock absorber spring, buffer spring, isolation spring for chainsaws, handle mount spring, anti‐vibe mount.
Fits Models:
MS 231, MS 231 C, MS 251, MS 251 C, MS231, MS231C, MS251, MS251C
Alternate Part Numbers:
1143-790-8301, 11437908301
Product Specifications
| L&S Part No. | 1143 790 8301 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 11437908301 |
| Unit of Sale | 1 |
| Machine Type | Chainsaws |
| Fits Brands | Stihl |
| Key Features | - Genuine Stihl OEM part for MS 231 and MS 251 chainsaws - Durable spring steel construction for long service life - Restores anti-vibration system to reduce handle vibration - Direct replacement for part number 1143 790 8301 - Suitable for professional and DIY chainsaw users |
| Fits Models | MS231, MS251 |
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