Description
Overview:
This Genuine Stihl non-return valve is a small but essential pressure washer component that prevents backflow to keep water pressure stable and consistent. Built from durable, corrosion-resistant materials suited to wet, high-pressure systems, it helps protect the pump and internal seals from reverse flow that can cause performance drop or premature wear. Designed for Stihl domestic and professional pressure washers, it is a direct replacement for OEM No. 4950 510 0204 and fits popular models including the RE 110 and RE 120. The valve is a straightforward swap for a worn or leaking part and supports reliable start-up, steady spray performance, and longer service life of your washer during routine cleaning and maintenance tasks.
Key Features:
- Genuine Stihl part for assured fit and performance
- Prevents backflow to maintain steady operating pressure and reduce pump wear
- Durable construction with corrosion-resistant internals for long service life
- Direct replacement for OEM No. 4950 510 0204 for easy identification
- Simple installation with no modifications required in compatible models
- Supports efficient detergent application and consistent spray pattern
- Helps resolve common symptoms such as pulsing, pressure loss, or delayed priming
- Suitable for regular maintenance to keep washers working at their best
Typical Applications:
Used within the water circuit of Stihl pressure washers to control flow direction, this valve supports cleaning patios, vehicles, machinery, tools, facades, fences, and garden furniture. It is a practical maintenance replacement when experiencing intermittent pressure, back-siphoning, or pump strain. Suitable for both home users and trades who need dependable washer performance.
Also known as:
Check valve, one-way valve, non return valve (NRV), backflow preventer, return stop valve, back-pressure valve.
Fits Models:
RE 100 K, RE 110, RE 110 PLUS, RE 120, RE 120 K, RE 120 PLUS, RE 130 PLUS, RE100K, RE110, RE120, RE120K
Alternate Part Numbers:
4950 510 0204, 4950-510-0204, 49505100204
Product Specifications
| L&S Part No. | 4950 510 0204 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 49505100204 |
| Unit of Sale | 1 |
| Applications | RE 100 K, RE 110, RE 110 PLUS, RE 120, RE 120 K, RE 120 PLUS, RE 130 PLUS, RE100K, RE110, RE120, RE120K |
| Machine Type | Pressure Washers |
| Fits Brands | Stihl |
| Fits Models | RE 100 K, RE 110, RE 120 K | RE 130 PLUS | RE 110 PLUS | RE 140 PLUS |


