Description
Overview:
This Control Piston 3.2 mm is a genuine Stihl replacement part for maintaining the pressure control system in Stihl electric pressure washers. It regulates flow and bypass within the pump's control assembly to keep working pressure stable and consistent. Built to OEM specification (OEM No. 4776 510 0300), it offers a precise 3.2 mm fit (approx 0.13 inches) for correct operation and sealing. The robust construction is designed for long service life under frequent start-stop and variable load conditions. Ideal for routine maintenance or repairs on popular models such as the Stihl RE 109 and RE 129 PLUS, it helps resolve symptoms like pressure fluctuation, pulsing, or reduced cleaning effectiveness without replacing the whole pump assembly.
Key Features:
- Genuine Stihl part for assured fit and compatibility with the specified models
- Precision 3.2 mm dimension (approx 0.13 inches) for reliable pressure control
- Durable construction suited to frequent use and varying inlet supply conditions
- Helps restore stable operating pressure and consistent spray pattern
- Straightforward to fit with standard hand tools, minimising downtime
- Made to OEM standards to maintain performance and safety functions
- Compatible with domestic and light professional cleaning tasks
- Supports preventative maintenance to extend pump and seal life
Typical Applications:
Used in the pressure control assembly of Stihl pressure washers to stabilise operating pressure during cleaning of patios, vehicles, machinery, facades, and tools. Suitable for routine servicing, troubleshooting surging or low pressure, and restoring reliable performance in everyday and trade use.
Also known as:
Pressure regulator piston, unloader valve piston, pump control plunger, pressure washer control piston, Stihl control piston.
Fits Models:
RE 109, RE 129 PLUS, RE109
Alternate Part Numbers:
4776 510 0300, 4776-510-0300, 47765100300
Product Specifications
| L&S Part No. | 4776 510 0300 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 47765100300 |
| Unit of Sale | 1 |
| Applications | RE 109, RE 129 PLUS, RE109 |
| Machine Type | Pressure Washers |
| Fits Brands | Stihl |
| Fits Models | RE 109 | RE 129 PLUS |
