Description
Overview:
This genuine Stihl control piston is a key pressure-regulating component for Stihl cold water pressure washers, including the RE 108 and RE 128 PLUS. It sits within the pump/valve assembly and maintains stable operating pressure for efficient cleaning. Built around a precision-machined metal piston with smooth bearing surfaces and elastomer O-ring seals, it is designed for consistent movement and leak-free sealing under repeated use. As a Genuine Stihl OEM part (4765 510 0303), it offers the correct dimensions and tolerances for a direct fit, helping to restore factory performance and reduce downtime. Suitable for homeowners, facilities teams, and trades, it supports reliable daily operation on driveways, patios, machinery, and workshop areas.
Key Features:
- Genuine Stihl OEM part for assured fit and compatibility
- Precision piston geometry for stable pressure control and smooth operation
- Durable metal construction with quality sealing elements for long service life
- Helps prevent pressure spikes, pulsing, and premature pump wear
- Direct replacement: no modification required when fitted to the correct model
- Supports easy maintenance and predictable servicing intervals
- Resistant to water and typical cleaning chemicals used with cold pressure washers
- Suitable for residential and professional use
Typical Applications:
Used to restore and stabilise pump pressure in Stihl cold pressure washers during routine servicing or repair. Ideal when the washer shows symptoms such as fluctuating pressure, reduced cleaning power, or irregular trigger response. Commonly fitted on machines used for patio cleaning, vehicle washing, plant and tool cleaning, and general site or facilities maintenance.
Also known as:
Pressure regulating piston, control valve piston, unloader piston, pump control plunger, pressure washer valve piston, regulator piston, washer pump control element.
Fits Models:
RE 108, RE 118, RE 128 PLUS, RE108, RE118, RE128PLUS
Alternate Part Numbers:
4765-510-0303, 4765 510 0302, 47655100303, 47655100302
Product Specifications
| L&S Part No. | 4765 510 0303 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 47655100303 |
| Unit of Sale | 1 |
| Applications | RE 108, RE 118, RE 128 PLUS, RE108, RE118, RE128PLUS |
| Machine Type | Pressure Washers |
| Fits Brands | Stihl |
| Fits Models | RE 108 | RE 118, RE 128 |
