Description
Overview:
This Set of Spur Sprocket/Worm 3/8'' Picco 7t is a genuine Stihl replacement kit designed to keep your chainsaw's drive system running smoothly. It combines a 7-tooth spur sprocket for 3/8'' Picco pitch (3/8'' = 9.53 mm) with the matching worm drive for the oil pump. Built for durability and a precise OEM fit, the sprocket is typically hardened steel for wear resistance, while the worm drive uses a tough polymer to deliver reliable lubrication drive. It restores crisp chain engagement and consistent oil delivery, helping maintain cutting performance and extend the life of the bar and chain. Suitable for Stihl MS 201 and MS 201 C models, the kit corresponds to OEM No. 1145 640 2050 and is a straightforward service replacement for professional and domestic users.
Key Features:
- Genuine Stihl OEM part for assured compatibility and quality (OEM 1145 640 2050)
- 3/8'' Picco pitch (9.53 mm) with 7-tooth spur configuration for smooth chain drive
- Robust, wear-resistant construction for long service life under regular use
- Worm drive maintains positive oil pump drive for consistent chain lubrication
- Helps reduce chain slip and vibration for cleaner, more controlled cutting
- Supports even chain wear and prolongs bar and chain lifespan
- Precise fit for MS 201-series saws, aiding quick, no-fuss replacement
- Suitable for routine maintenance schedules in professional and DIY settings
- Compatible with low-profile 3/8'' Picco chains commonly used on compact pro saws
- Check compatibility: 3/8'' P (9.53 mm) pitch and 7T must match your chain setup
Typical Applications:
Used when the drive sprocket is worn, notching, or causing chain chatter, or when the oil pump drive is damaged. Ideal for routine service on arborist, landscaping, forestry, and property maintenance saws. Helps restore reliable chain drive and oiling on Stihl MS 201-series machines used for pruning, dismantling, small felling, and firewood cutting.
Also known as:
Clutch drum and sprocket, drive drum, chain drive sprocket, oil pump worm, 3/8 low-profile 7T, chain drive kit, clutch sprocket assembly, Picco drive drum.
Fits Models:
MS 201
MS 201 C
MS 201 T
MS 201 TC
MS201
MS201C
MS201T
MS201TC
Product Specifications
| L&S Part No. | 1145 640 2050 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 11456402050 |
| Unit of Sale | 1 |
| Applications | MS 201, MS 201 C, MS 201 T, MS 201 TC, MS201, MS201C, MS201T, MS201TC |
| Machine Type | Chainsaws |
| Fits Brands | Stihl |
| Fits Models | MS201, MS201C, MS201T, MS201TC |
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