Description
Overview:
This metering diaphragm is a Genuine Stihl spare for selected brushcutters, including FS460C and FS460RC. It is a thin, fuel‐resistant elastomer membrane, engineered to control the fuel level in the carburettor's metering chamber. By flexing in response to pressure changes, it keeps the fuel‐air mixture stable for smooth starting, clean idling, and consistent power under load. Built to Stihl specifications, it restores correct carburettor function when the original diaphragm has hardened, warped, or torn through age or fuel exposure. Suitable for routine service or repair, it is a direct replacement designed for the Stihl models listed below. Manufacturer Part Number (MPN): 4147 121 4700.
Key Features:
- Genuine Stihl part for OEM fit and performance (MPN 4147 121 4700)
- Regulates fuel delivery in the carburettor metering circuit for stable running
- Helps cure symptoms such as hard starting, hesitation, surging, or stalling
- Fuel‐ and heat‐resistant construction for reliable service life
- Maintains correct fuel‐air mixture across different speeds and loads
- Direct replacement for the original diaphragm on listed Stihl brushcutters
- Suitable for preventative maintenance during carburettor servicing
- Straightforward to fit with basic hand tools and a clean work area
- Compatible with multiple Stihl FR and FS series models
Typical Applications:
Used during carburettor overhaul or troubleshooting to restore proper metering in Stihl brushcutters. Ideal when engines are difficult to start, won't hold idle, surge at speed, or lose power under load. Common in scheduled maintenance to prevent running issues caused by aged or fuel‐damaged diaphragms.
Also known as:
Metering membrane, carburettor metering diaphragm, carb membrane, fuel metering diaphragm, carburettor fuel diaphragm.
Fits Models:
FR 410 C, FR 460 TC, FS 240, FS 240 C, FS 240 RC, FS 260, FS 260 C, FS 260 RC, FS 360 C, FS 410 C, FS 460 C, FS 460 RC
Alternate Part Numbers:
4147-121-4700, 41471214700
Product Specifications
| L&S Part No. | 4147 121 4700 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 41471214700 |
| Unit of Sale | 1 |
| Machine Type | Brushcutters |
| Fits Brands | Stihl |
| Key Features | - Genuine Stihl part for OEM fit (MPN 4147 121 4700) - Compatible with Stihl FS460C and FS460RC brushcutters - Fuel-resistant elastomer for reliable service life - Regulates carburettor fuel delivery for stable running - Direct replacement for original diaphragm on listed models |
| Fits Models | FS240, FS260 | FS360C FS410C | FS460C, FS460RC | FR410C, FR460TC | FS461 C-EM | FS461 C-EML |

