Description
Overview:
This Worm for Stihl MS241C Chainsaw is a genuine Stihl OEM component that drives the chain oil pump, ensuring steady bar and chain lubrication. Made from a hard‐wearing, oil‐resistant polymer for durability in tough cutting conditions, it is built to factory tolerances for a precise, reliable fit. As a key part of the lubrication system, the worm gear helps protect the bar and chain from premature wear and overheating by delivering oil consistently during use. Supplied as Stihl part number 1143 640 7100, it is an ideal drop‐in replacement when servicing the MS241C or MS 241 C, especially if the original gear shows signs of wear, rounding, or damage. Choosing the genuine part helps maintain performance and extends the service life of your saw.
Key Features:
- Genuine Stihl OEM part for assured compatibility and fit (1143 640 7100)
- Drives the oil pump for consistent bar and chain lubrication
- Durable, oil‐resistant polymer construction for long service life
- Built to Stihl specifications to maintain correct clearances and function
- Helps prevent bar overheating and excessive chain wear
- Straightforward replacement during routine clutch or oil system service
- Suitable for restoring performance where the original worm is worn or stripped
- Compatible with MS241C / MS 241 C
- Identifies easily with alternate references 1143-640-7100 and 11436407100
- Reliable choice for both professional and domestic users
Typical Applications:
Routine maintenance and repair of the Stihl MS241C lubrication system, including replacement during clutch removal, oil pump servicing, or when poor chain oiling is observed. Ideal when the chain runs dry, the bar runs hot, or oil delivery is inconsistent.
Also known as:
Oil pump worm gear, oil pump drive gear, worm drive, oiler gear, helical drive gear, chainsaw oiling worm, lubrication drive gear.
Fits Models:
MS 241 C, MS241C
Alternate Part Numbers:
1143-640-7100, 11436407100
Product Specifications
| L&S Part No. | 1143 640 7100 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 11436407100 |
| Unit of Sale | 1 |
| Applications | MS 241 C, MS241C |
| Machine Type | Chainsaws |
| Fits Brands | Stihl |
| Fits Models | MS241C |
