Description
Overview:
This Genuine Stihl O-Ring 4x1 is a small, precision rubber seal used to stop leaks and maintain pressure in critical connections on Stihl chainsaws. Made from durable elastomer, it provides a tight, reliable seal in compact housings and fittings found across the machine. Sized at 4 x 1 mm (internal diameter x cross-section), it's designed for an exact fit on classic heavy-duty saws such as the Stihl 070 and 090. It helps keep oil, fuel and air pathways sealed so your equipment runs smoothly and efficiently. Identified by Manufacturer Part Number (MPN) 9646 945 0150, it is a direct, Genuine Part replacement to maintain factory performance and longevity without guesswork.
Key Features:
- Genuine Stihl part (MPN 9646 945 0150) for assured fit and compatibility
- 4 x 1 mm size for accurate sealing in small bores and grooves
- Durable rubber construction for dependable, long-lasting service
- Helps prevent oil, fuel and air leaks to protect performance
- Stable sealing under vibration and temperature changes typical of chainsaw use
- Straightforward to fit; suitable for routine maintenance and repairs
- Supports safe, efficient operation by maintaining correct system pressures
- Suitable for heavy-duty work environments encountered by professional users
Typical Applications:
Used wherever a compact seal is required on Stihl chainsaws, including small covers, plugs, hose junctions and threaded or push-fit connections. Ideal for maintaining leak-free oil and fuel systems, and for sealing air paths where pressure integrity is important. A practical spare to keep on hand for preventative maintenance or quick repairs in the workshop or on site.
Also known as:
Sealing ring, rubber seal, toroidal ring, packing ring, gasket ring, metric O-ring 4 x 1 mm. Often referenced as a small-section seal for precision grooves in chainsaw assemblies where a compact, compliant seal is required to maintain oil, fuel or air tightness.
Fits Models:
070, 090, 090G, MS 720, SP 81
Alternate Part Numbers:
9646-945-0150, 96469450150
