Description
Overview:
This genuine Stihl hose (part number 1143 647 9401) is a fuel or oil line for Stihl chainsaws, designed to maintain a secure, leak-resistant flow to key components. Made from petrol- and oil-resistant elastomer rubber, it is flexible yet durable, with the correct shape and length for a precise fit. It is intended for the Stihl MS 231 and MS 251 series and helps restore reliable operation where a hose has become brittle, cracked, or blocked. By ensuring airtight connections and steady delivery, it supports smooth starting, consistent running, and proper lubrication. Suitable for professional and domestic users, this is a direct-fit replacement that keeps your saw working efficiently and reduces unplanned downtime.
Key Features:
- Genuine Stihl part 1143 647 9401 for assured compatibility and performance
- Engineered for the MS 231 and MS 251 families, including "C" variants
- Fuel- and oil-resistant rubber construction for long service life
- Correct moulded profile and length for a secure, leak-tight connection
- Helps resolve hard starting, uneven idling, and fuel or oil delivery issues
- Resists vibration, heat, and contact with petrol and chain oil
- Straightforward to install with basic tools; no modifications required
- Ideal replacement where the original hose is cracked, hardened, or leaking
Typical Applications:
Used during servicing or repair of Stihl chainsaws to restore reliable fuel or oil flow. Suitable when addressing air leaks, fuel starvation, poor oiling, or emissions of fuel/oil due to perished hoses. Helps maintain performance in tasks such as logging, landscaping, fencing, and firewood cutting.
Also known as:
Fuel hose, oil hose, fuel line, oil line, fuel pipe, return line, delivery hose, replacement hose for Stihl chainsaws. Often referenced as a chainsaw hose or service hose for the MS 231/MS 251 platform.
Fits Models:
MS 231
MS 231 C
MS 251
MS 251 C
Product Specifications
| L&S Part No. | 1143 647 9401 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 11436479401 |
| Unit of Sale | 1 |
| Machine Type | Chainsaws |
| Fits Brands | Stihl |
| Key Features | - Genuine Stihl part 1143 647 9401 ensures compatibility - Designed for Stihl MS 231 and MS 251 series - Petrol- and oil-resistant elastomer rubber construction - Moulded profile for secure, leak-tight connections - Resolves hard starting and uneven idling issues |
| Fits Models | MS231, MS251 |
