9645 948 7734 – STIHL Fuel Cap O‑Ring (25×3.5 mm)
Product Description
The STIHL 9645 948 7734 O‑Ring is a genuine OEM rubber seal designed for use in STIHL fuel tank caps and flip-top closures. With precise dimensions of 25 mm inner diameter and 3.5 mm cross-section, this durable O‑Ring maintains an airtight seal to prevent fuel and vapor leaks, helping ensure clean and safe operation of your outdoor power equipment.
Key Features
✅ OEM STIHL Part Number: 9645 948 7734
✅ Size: 25 mm Inner Diameter × 3.5 mm Cross-Section
✅ Durable rubber compound resists fuel, oil, and harsh environments
✅ Creates a tight, secure seal to prevent leaks
✅ Designed specifically for STIHL cap systems
What It’s Used For
✔ Seals STIHL fuel caps to prevent leakage and vapor loss
✔ Replaces worn or cracked O-rings to maintain safe operation
✔ Ensures secure tank closure on handheld and backpack equipment
Why Choose This O‑Ring
✔ Genuine STIHL part ensures fit and performance
✔ Simple, low-cost maintenance item
✔ Helps preserve fuel system integrity
✔ Quick to install with long-lasting reliability
Compatible With STIHL Models
Used across a wide range of STIHL equipment, including:
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Chainsaws: 020, 021, 023, 025, MS171, MS180, MS181, MS192 T, MS210, MS230, MS250, MS261, MS290, MS310, MS362, MS391, MS440, MS460, MS500i, MS660, MS880, and more
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Blowers: BG45, BG55, BG85, BR500, BR600
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Brushcutters: FS38, FS45, FS55, FS85, FS94, FS120, FS130, FS240, FS260, FS360, FS460
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Hedge Trimmers and Kombi Engines: HS46, HS81, KM56, KM90, KM100, KM130
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Earth Augers, Pole Pruners, and others: BT45, HT101, HT131, HL100, HL94
Please consult your machine’s parts diagram to confirm fitment.
Pack Contents
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1 × STIHL O-Ring (25×3.5 mm)
