9640 003 2250 – STIHL O‑Ring 4 × 1 mm
Product Description
The STIHL 9640 003 2250 O‑Ring is a genuine OEM seal designed for precision use in STIHL fuel systems, particularly within carburetor assemblies and small-engine fittings. Measuring 4 mm inner diameter × 1 mm cross-section, it offers a tight, leak-proof seal to maintain proper fuel and air flow.
Key Features
✅ OEM STIHL Part Number: 9640 003 2250
✅ Dimensions: 4 mm ID × 1 mm cross-section
✅ Constructed from fuel- and oil-resistant rubber
✅ Reliable performance under pressure and vibration
✅ Manufactured to STIHL’s strict quality standards
What It’s Used For
✔ Sealing in STIHL carburetors and small-engine fuel systems
✔ Preventing fluid or air leaks in high-precision fittings
✔ Ideal replacement part during servicing or tuning
Why Choose This O‑Ring
✔ Genuine STIHL quality for exact fit and reliable sealing
✔ Helps maintain optimal engine performance
✔ Quick and cost-effective to install
✔ Reduces the risk of leaks and engine damage
Compatible STIHL Applications
Frequently used in STIHL chainsaws, brushcutters, blowers, and other handheld tools with small-engine or carburetor systems. Always refer to your machine’s parts diagram or service guide to confirm correct application.
Pack Contents
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1 × STIHL O‑Ring (4 × 1 mm)
