Description
Overview:
The Pump Diaphragm for Stihl TS350 and 08 S is a genuine Stihl replacement part designed to restore reliable fuel or impulse pump function in compatible machines. Made from a durable, fuel‐resistant elastomer with a flexible membrane profile, it maintains correct pump action, helping your equipment start consistently, idle smoothly, and run under load without cutting out. This diaphragm sits within the pump assembly to meter and transfer fuel as the engine pulses, and is engineered for an accurate fit to factory specifications. Suitable for older and professional-grade Stihl tools, including cutters and large chainsaws, it is an ideal maintenance item to replace hardened or cracked membranes. OEM reference: 1106 121 4803. Genuine Stihl part for dependable compatibility and service life.
Key Features:
- Genuine Stihl part for assured fit and performance
- Fuel- and oil-resistant elastomer for long service life
- Precision cut and profiled membrane for stable pump output
- Helps restore easy starting, clean acceleration, and consistent running
- Supports correct fuel delivery to avoid lean running or stalling
- Suitable for professional and DIY maintenance schedules
- Compatible with multiple classic Stihl models for versatile use
- Lightweight component; straightforward to install with standard hand tools
- Stable under vibration and temperature changes typical of site use
- Direct replacement for OEM number 1106 121 4803
Typical Applications:
Used during routine servicing or repairs when engines become hard to start, surge, or lose power under load. Ideal for concrete cut-off saws and large Stihl chainsaws working on site, in landscaping, forestry, and workshop settings. Replacing a tired diaphragm helps maintain reliable fuel flow and productivity.
Also known as:
Pump membrane, fuel pump diaphragm, impulse pump diaphragm, rubber pump sheet, carburettor pump membrane, replacement diaphragm.
Fits Models:
070, 08 S, 090, 090 G, BT 360, MS 720, TS 350, TS 350 AVE, TS 360, TS350, TS350AVE, TS360, 08S, 090G, BT360, MS720
Alternate Part Numbers:
1106-121-4803, 11061214803
Product Specifications
| L&S Part No. | 1106 121 4803 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 11061214803 |
| Unit of Sale | 1 |
| Applications | 070, 08 S, 08S, 090, 090 G, 090G, BT 360, BT360, MS 720, MS720, TS 350, TS 350 AVE, TS 360, TS350, TS350AVE, TS360 |
| Machine Type | Disc Cutters |
| Fits Brands | Stihl |
| Fits Models | TS350, TS360 | 08S | MS720 | 070 | 090, 090G | BT 360 |
