Description
Overview:
The Worm Drive for Stihl chainsaws (part number 1146 640 7102) is a small, precision-moulded component that transfers rotation from the engine/clutch area to auxiliary systems, most commonly the chain lubrication pump. Built from a tough engineered polymer for low friction and wear resistance, it restores positive drive where the original gear has worn or stripped. It is designed for compact Stihl petrol chainsaws and is widely used across popular models such as the MS 150 and MS 201. Fitted correctly, it helps maintain consistent bar and chain lubrication and smooth running, supporting reliable cutting performance in both trade and home-use environments. This is a direct-fit replacement made to match the original form and fit, suitable for routine service or repair.
Key Features:
- Direct-fit replacement to the original specification across a wide range of compact Stihl saws
- Engineered polymer construction for low wear, low friction, and dependable service life
- Maintains consistent chain lubrication by driving the lubrication system effectively
- Helps prevent premature bar and chain wear caused by poor oil delivery
- Accurate tooth form for smooth engagement and efficient power transfer
- Lightweight and simple to handle during service work
- Straightforward to fit during clutch or oil pump maintenance with basic tools
- Suitable for professional, hire-fleet, and DIY use in demanding conditions
Typical Applications:
Used during routine servicing or repair when chain oiling becomes intermittent, noisy, or stops due to a worn or damaged worm. Ideal for arborists, landscapers, grounds maintenance teams, hire and rental fleets, and homeowners who need to restore reliable chain lubrication and smooth drive on compact Stihl chainsaws.
Also known as:
Oil pump worm, oiler drive gear, lubrication pump worm, pump drive worm, worm pinion, chain oiler worm drive.
Fits Models:
MS 150, MS 150 C, MS 150 T C, MS 151 C, MS 151 TC, MS 192, MS 192 C, MS 192 T, MS 192 TC, MS 193, MS 193 C, MS 193 T, MS 193 TC, MS 194 T, MS 194 TC, MS 201, MS 201 C, MS 201 T, MS 201 TC
Product Specifications
| L&S Part No. | 1146 640 7102 |
|---|---|
| Manufacturer | Stihl |
| OEM No. | 11466407102 |
| Unit of Sale | 1 |
| Applications | MS 150, MS 150 C, MS 150 T C, MS 151 C, MS 151 TC, MS 192, MS 192 C, MS 192 T, MS 192 TC, MS 193, MS 193 C, MS 193 T, MS 193 TC, MS 194 T, MS 194 TC, MS 201, MS 201 C, MS 201 T, MS 201 TC, MS150, MS150C, MS150T C, MS150TC, MS151C, MS151TC, MS192, MS192C, MS192T, MS192TC, MS193, MS193C, MS193T, MS193TC, MS194T, MS194T / MS194TC, MS194TC, MS201, MS201C, MS201T, MS201TC |
| Machine Type | Chainsaws |
| Fits Models | MS192C, MS192T, MS192TC | MS201, MS201C, MS201T, MS201TC | MS150T C | MS150C | MS193C, MS193T, MS193TC | MS151C, MS151TC | MS194T / MS194TC |
