STIHL O-Ring - 9645 945 7497

Overview

• Manufacturer: STIHL
• Part type: O‑ring seal (replaceable sealing component)
• Purpose: Provides a fluid-tight seal in compatible STIHL equipment; used during assembly or maintenance to restore sealing integrity where this part number is specified.
• Typical use cases: routine maintenance, component replacement, and repair of sealing interfaces in STIHL engines and accessories.

Key Features

• Part Number: 9645 945 7497
• Type of machine suitable for: STIHL handheld petrol-powered tools that require this exact O‑ring in their sealing assemblies
• Installation tips:
  • Verify compatibility with your model using the part number in STIHL diagrams.
  • With the machine off and cooled, remove the old O‑ring and inspect the groove for damage or wear.
  • Clean the groove and seating surfaces; ensure no debris remains.
  • Insert the new O‑ring into the groove in its correct orientation; avoid twisting or pinching.
  • Light lubrication is recommended only if specified by STIHL; reassemble and test for leaks.

Compatibility

• Suitable machine models: STIHL equipment that lists this part number (9645 945 7497) in its official parts catalog; model-specific compatibility not provided here.
• Alternative part numbers: Not listed