Description
Overview:
This Pump Housing is a genuine Stihl component for high-performance chainsaws, engineered to support and locate the oil pump that feeds bar and chain lubrication. Built from a durable moulded polymer to cope with vibration, heat and oil exposure, it helps maintain correct alignment and sealing of the oil channels for reliable flow. Designed for a precise fit on Stihl professional saws such as the MS650 and MS660, it restores proper lubrication performance when the original housing is worn, cracked or stripped. Genuine Stihl OEM No. 1122 640 3005 ensures the correct dimensions and mounting points, making it a dependable replacement choice for routine repairs or full overhauls on compatible models in the 066/MS 660 series.
Key Features:
- Genuine Stihl part for assured compatibility and build quality (OEM 1122 640 3005)
- Precision-moulded housing maintains pump alignment for consistent oil delivery
- Robust polymer construction resists impact, heat, and oil/fuel splash
- Direct replacement for damaged or worn housings to restore lubrication performance
- Stable sealing surfaces help minimise oil leaks and improve reliability
- Manufactured to withstand demanding professional and domestic cutting tasks
- Accurate mounting points for straightforward refitting with existing fasteners
- Supports even bar and chain lubrication to reduce wear and overheating
- Suitable for scheduled maintenance or corrective repair after mechanical damage
- Designed for a clean, factory-fit installation on listed Stihl models
Typical Applications:
Used when servicing or repairing the chain oiler system on Stihl 066/MS650/MS660 saws, especially after impact damage, stripped threads, or oil leakage from a worn housing. Suitable for forestry, arborist work, estate and farm maintenance, firewood processing, and site use where dependable chain lubrication is essential for safe cutting and long component life.
Also known as:
Oil pump housing, chain oiler housing, lubrication pump casing, oiler pump body, pump cover, oiler body, chainsaw oil pump case, lubrication housing for bar and chain, Stihl oiler housing, OEM pump body 1122 640 3005.
Fits Models:
066, 066BR, 066M, 066MR, 066W, MS 650, MS 660, MS 660-W, MS650, MS660, MS660-W, MS660W
Alternate Part Numbers:
1122-640-3005, 11226403005
Product Specifications
| L&S Part No. | 1122 640 3005 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 11226403005 |
| Unit of Sale | 1 |
| Machine Type | Chainsaws |
| Fits Brands | Stihl |
| Key Features | - Genuine Stihl part ensures compatibility (OEM 1122 640 3005) - Precision-moulded for consistent oil pump alignment - Durable polymer resists impact, heat, and oil exposure - Direct replacement for Stihl 066/MS650/MS660 models - Accurate mounting points for easy installation |
| Fits Models | MS650 | MS660 | 066 |
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