Description
Overview:
This genuine Stihl O-Ring (9 x 1.8 mm) is a small, round elastomer seal used to stop leaks and maintain pressure in mower systems. Made from durable, fuel- and oil-resistant rubber, it provides a reliable seal between mating parts to keep fuel, oil, air or water where it should be. It is sized for precision fitment in Stihl walk‐behind lawn mowers, including MB650.3T and MB655.3V models, and other compatible variants. With the correct 9 mm internal diameter and 1.8 mm cross‐section, it helps restore proper sealing performance when a worn or flattened ring is causing seepage or poor running. OEM No. 9645 945 0755 confirms authenticity and fit. Ideal for preventative maintenance and straightforward replacement during routine servicing.
Key Features:
- Genuine Stihl part for assured fit and performance (Genuine Part)
- Correct dimensions: 9 x 1.8 mm (ID x cross‐section) for dependable sealing
- Resistant to common mower fluids and temperatures for long service life
- Helps prevent leaks and pressure loss in fuel, oil, and air pathways
- Supports smooth running and efficiency by maintaining proper system sealing
- Simple to fit with basic hand tools; seats cleanly in its groove
- Cost-effective fix for hard, cracked, or flattened old seals
- OEM number 9645 945 0755 for easy identification and parts matching
Typical Applications:
Used wherever a 9 x 1.8 mm O-ring is specified in Stihl mower assemblies. Typical uses include sealing caps, housings, fittings, and connectors in fuel, oil or air systems, as well as general-purpose sealing points around pumps, valves, and covers. Suitable for routine servicing or repairs when addressing leaks, poor starting, or loss of performance caused by degraded seals.
Also known as:
O ring, sealing ring, toroidal seal, toric seal, round‐section seal, packing ring, circular seal, elastomer seal.
Fits Models:
MB 650.3 T, MB 650.3 V, MB 655.3 V, MB 655.3 VS, MB 655.3 YS, MB650.3T, MB650.3V, MB6503T, MB6503V, MB655.3V, MB655.3VS, MB655.3YS, MB6553V, RM 650.0 T, RM 650.0 V, RM 650.1 VE, RM 655.0 V, RM 655.0 VS, RM 655.0 YS, RM 655.1 VS, RM650.0T, RM650.0V, RM650.1VE, RM6500T, RM6500V, RM655.0V, RM655.0VS, RM655.0YS, RM655.1VS, RM6550V, RMA 765.0 V, RMA765.0V
Alternate Part Numbers:
9645-945-0755, 96459450755
Product Specifications
| L&S Part No. | 9645 945 0755 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 96459450755 |
| Unit of Sale | 1 |
| Applications | MB 650.3 T, MB 650.3 V, MB 655.3 V, MB 655.3 VS, MB 655.3 YS, MB650.3T, MB650.3V, MB6503T, MB6503V, MB655.3V, MB655.3VS, MB655.3YS, MB6553V, RM 650.0 T, RM 650.0 V, RM 650.1 VE, RM 655.0 V, RM 655.0 VS, RM 655.0 YS, RM 655.1 VS, RM650.0T, RM650.0V, RM650.1VE, RM6500T, RM6500V, RM655.0V, RM655.0VS, RM655.0YS, RM655.1VS, RM6550V, RMA 765.0 V, RMA765.0V |
| Machine Type | Mowers |
| Fits Brands | Stihl |
| Fits Models | RM 650.0 T | RM 650.0 V | RM 655.0 V | RM 655.0 VS | MB 650.3 T | MB 650.3 V | MB 655.3 V | MB 655.3 VS | MB 655.3 YS | RM 650.1 VE | RM 655.0 YS | RM 655.1 VS | RMA 765.0 V | RMA 750.0 V | RMA 756.0 V | RMA 7.0 RV |
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