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- 9639 003 1205 – STIHL Oil Seal (Genuine OEM Part)
Description
9639 003 1205 – STIHL Oil Seal (Genuine OEM Part)
The STIHL 9639 003 1205 Oil Seal is a genuine OEM sealing component engineered to prevent oil leakage and protect internal engine assemblies in STIHL outdoor power equipment. Designed for high-performance applications, this oil seal helps maintain proper lubrication while preventing dirt, moisture, and debris from entering sensitive rotating components.
Manufactured to STIHL’s exact factory specifications, the 9639 003 1205 oil seal is built from durable, heat-resistant materials capable of withstanding demanding operating temperatures, vibration, and continuous engine use in professional and residential equipment.
Key Details:
Manufacturer ID: 9639 003 1205
Brand: STIHL
Part Type: Oil Seal
Function: Prevents oil leakage and protects internal engine components
Material: High-performance rubber and reinforced sealing materials
Installation: Direct OEM replacement part
Compatibility:
The STIHL 9639 003 1205 oil seal is used in select STIHL chainsaws, trimmers, blowers, cut-off saws, and other STIHL outdoor power equipment requiring this exact oil seal specification.
Compatibility should always be confirmed using the equipment model number and STIHL illustrated parts diagram.
Who is this for?
Ideal for homeowners, landscapers, arborists, repair technicians, and professional outdoor power equipment operators maintaining STIHL equipment with genuine OEM replacement parts.
Property Size:
Suitable for residential, commercial, and large property maintenance equipment applications.
Pros / Cons:
Pros:
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Genuine STIHL OEM quality
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Helps prevent oil leaks and contamination
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Designed for high-temperature engine environments
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Supports long-term engine reliability and lubrication
Cons:
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Proper model compatibility verification is required before installation
Comparison:
Compared with aftermarket oil seals, the STIHL 9639 003 1205 delivers factory-grade sealing performance, superior durability, and reliable fitment designed specifically for STIHL equipment.
Why buy from Barry’s?
Barry’s Power Equipment supplies genuine STIHL OEM replacement parts trusted by professional landscapers, arborists, and homeowners for dependable performance, accurate fitment, and expert support.
Additional Information
Shipping & Return
Reviews
B
Brandon I will definitely buy from these folks again. They had the parts i needed in stock and shipped immediately.
B
Brandon I will definitely buy from these folks again. They had the parts i needed in stock and shipped immediately.

