Description
Overview:
The O-Ring 9x2.5mm is a genuine Stihl sealing ring used across a range of Stihl machines to prevent leaks at critical joints. Made from durable black rubber, it sits in a machined groove to form a tight seal under pressure. This small part helps maintain reliable operation in brushcutters, clearing saws and cut-off saws, including models such as the FS 410 and 050. Its dimensions are 9 x 2.5 mm (approximately 0.35 x 0.10 inches), making it suitable where this specific size is specified by Stihl. As an OEM component with MPN 9646 945 0780, it offers a direct-fit replacement for worn or flattened seals, helping to restore proper sealing performance without modification.
Key Features:
- Genuine Stihl OEM part for assured compatibility and fit (MPN 9646 945 0780)
- Size: 9 x 2.5 mm (approx. 0.35 x 0.10 in) for applications requiring this specification
- Robust rubber construction for dependable sealing against fuel, oil and air leaks
- Precision moulded to seat correctly in the groove without distortion
- Helps maintain system pressure/vacuum and smooth running of equipment
- Straightforward replacement for a perished or flattened O-ring
- Supports reliable operation and reduces the risk of fluid loss
- Suitable for a wide range of Stihl brushcutters, saws and cut-off saws
Typical Applications:
Used wherever a 9 x 2.5 mm O-ring seal is specified on Stihl equipment, such as hose connections, covers, housings and small assemblies in fuel, oil or air systems. Common on FS-series brushcutters and TS-series cut-off saws to prevent seepage, maintain pressure integrity and keep contaminants out of sensitive components.
Also known as:
Sealing ring, toric ring, packing ring, round-section seal, O-seal, elastomer seal, circular gasket.
Fits Models:
050, 051, 075, 076, FS 120, FS 20, FS 200, FS 202, FS 250, FS 311, FS 353, FS 360 C, FS 410, FS 410 AV, FS 410 C, FS120, FS20, FS200, FS202, FS250, FS311, FS353, FS360C, FS410, FS410AV, FS410C, TS 50, TS50
Alternate Part Numbers:
9646-945-0780, 96469450780
Product Specifications
| L&S Part No. | 9646 945 0780 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 96469450780 |
| Unit of Sale | 1 |
| Applications | 050, 051, 075, 076, FS 120, FS 20, FS 200, FS 202, FS 250, FS 311, FS 353, FS 360 C, FS 410, FS 410 AV, FS 410 C, FS120, FS20, FS200, FS202, FS250, FS311, FS353, FS360C, FS410, FS410AV, FS410C, TS 50, TS50 |
| Machine Type | Brushcutters, Disc Cutters |
| Fits Brands | Stihl |
| Fits Models | FS120, FS200, FS250 | FS360C FS410C | TS50 | FS20 | FS200, FS202 | FS311 | FS410AV (old model) | 050, 051 | 076 | 075 |
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