Description
Overview:
This switch shaft is a small but critical linkage for the switch mechanism on Stihl chainsaws, designed to restore positive, reliable operation of the on/off and start controls. Made from durable black plastic suited to fuel and oil environments, it connects the external control lever to the internal mechanism so your saw starts, stops, and selects positions as intended. It is a direct-fit replacement for the Stihl reference 1143 182 0900 and is suitable for the MS 231 and MS 251 families. Ideal when the control feels loose, does not engage, or fails to stay in position, this part helps maintain safe, predictable operation for both professional and DIY users.
Key Features:
- Direct replacement for OEM reference 1143 182 0900 for accurate fit and function
- Durable moulded plastic designed for vibration, oil, and fuel environments
- Helps restore reliable starting, stopping, and mode selection
- Supports safe operation by ensuring positive engagement of the switch mechanism
- Precision fit for the MS 231 and MS 251 model families listed below
- Straightforward installation with no modifications to the saw body
- Suitable for routine maintenance or repair after wear or impact
- Cost-effective way to cure a loose, sticky, or non-functioning control lever
Typical Applications:
Used during repair or servicing when the chainsaw's control lever fails to engage positions, feels sloppy, or stops working after wear, impact, or contamination. Common in workshop maintenance of Stihl MS 231 and MS 251 series saws to keep controls consistent and safe for everyday cutting, pruning, and firewood tasks.
Also known as:
Switch lever shaft, master control shaft, stop switch shaft, selector shaft, control linkage for switch, chainsaw switch component, replacement switch shaft.
Fits Models:
MS 231, MS 231 C-BE, MS 231 C-BE Z, MS 231 C-BE Z WoodBoss, MS 231-Z, MS 251, MS 251 C-BE, MS 251 C-BE Z, MS 251 C-BE Z WoodBoss, MS 251 C-BEQ, MS 251 C-BEQ Z, MS 251 C-E, MS 251-Z, MS 251-Z WoodBoss, MS231, MS231-Z, MS231C-BE, MS231C-BEZ, MS231C-BEZWoodBoss, MS231Z, MS251, MS251-Z, MS251-ZWoodBoss, MS251C-BE, MS251C-BEQ, MS251C-BEQZ, MS251C-BEZ, MS251C-BEZWoodBoss, MS251C-E, MS251CE, MS251Z
Alternate Part Numbers:
1143-182-0900, 11431820900
Product Specifications
| L&S Part No. | 1143 182 0900 |
|---|---|
| Manufacturer | Stihl |
| OEM No. | 11431820900 |
| Unit of Sale | 1 |
| Applications | MS 231, MS 231 C-BE, MS 231 C-BE Z, MS 231 C-BE Z WoodBoss, MS 231-Z, MS 251, MS 251 C-BE, MS 251 C-BE Z, MS 251 C-BE Z WoodBoss, MS 251 C-BEQ, MS 251 C-BEQ Z, MS 251 C-E, MS 251-Z, MS 251-Z WoodBoss, MS231, MS231-Z, MS231C-BE, MS231C-BEZ, MS231C-BEZWoodBoss, MS231Z, MS251, MS251-Z, MS251-ZWoodBoss, MS251C-BE, MS251C-BEQ, MS251C-BEQZ, MS251C-BEZ, MS251C-BEZWoodBoss, MS251C-E, MS251CE, MS251Z |
| Machine Type | Chainsaws |
| Fits Brands | Stihl |
| Fits Models | MS231, MS251 |
