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Description
STIHL 9640 003 0955 Oil Seal (10 x 20 x 4 mm) – Genuine OEM Replacement for MS 150 C/CE & MS 150 T/TC
The STIHL 9640 003 0955 Oil Seal is a genuine OEM replacement designed for select STIHL chainsaws, brushcutters, hedge trimmers, and Kombi engines, including the MS 150 C/CE and MS 150 T/TC. This precision-engineered radial shaft seal helps prevent oil and air leaks while maintaining proper crankcase pressure for dependable engine performance, efficient lubrication, and easier starting. It measures 10 × 20 × 4 mm and is manufactured to DIN 3760-BS standards.
Manufactured to STIHL's exact OEM specifications, the 9640 003 0955 Oil Seal is made from a durable oil- and fuel-resistant elastomer that withstands high temperatures, vibration, and demanding operating conditions. Whether you're rebuilding an engine or replacing a worn crankshaft seal, this genuine STIHL OEM component restores factory sealing performance and long-term reliability.
Key Features
Part Number: 9640 003 0955
Brand: STIHL
Product Type: Oil Seal (Radial Shaft Seal)
OEM Quality: Genuine STIHL OEM replacement
Seal Size: 10 × 20 × 4 mm
Standard: DIN 3760-BS
Material: Oil- and fuel-resistant elastomer
Function: Prevents oil leaks and air intrusion while maintaining proper crankcase sealing and engine efficiency.
Benefits
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Genuine STIHL OEM replacement part
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Maintains proper crankcase sealing
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Helps prevent oil leaks and air leaks
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Oil- and fuel-resistant construction
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Precision-engineered for an exact factory fit
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Supports reliable engine performance and easier starting
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Designed for professional and homeowner applications
Compatibility
The STIHL 9640 003 0955 Oil Seal fits select STIHL equipment requiring part number 9640 003 0955, including:
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STIHL MS 150 C
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STIHL MS 150 CE
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STIHL MS 150 T
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STIHL MS 150 TC
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STIHL MS 151 C
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STIHL MS 151 TC
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Select FS 94, HL 91/92/94, and KM 94 series models.
Always verify your equipment model, serial number, and parts diagram before ordering to ensure proper fitment.
Ideal For
Perfect for:
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Arborists
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Professional tree care specialists
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Chainsaw repair technicians
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Outdoor power equipment service centers
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STIHL equipment owners
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Commercial landscapers
Recommended Applications
Ideal for:
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Engine rebuilds
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Crankshaft seal replacement
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Oil leak repairs
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Preventative maintenance
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Professional chainsaw servicing
Pros
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Genuine STIHL OEM quality
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Precision 10 × 20 × 4 mm fit
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Excellent resistance to oil, fuel, and heat
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Helps maintain proper engine compression and performance
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Direct-fit replacement
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Long service life
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Reliable sealing performance
Cons
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Compatible only with equipment requiring 9640 003 0955
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Proper installation tools are recommended to prevent seal damage
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Inspect crankshaft bearings and sealing surfaces during replacement for best results
Why Buy from Barry's Power Equipment?
At Barry's Power Equipment, we provide genuine OEM replacement parts trusted by professional arborists, landscapers, and equipment owners.
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Genuine OEM STIHL parts
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Fast shipping throughout the USA
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Competitive pricing
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Expert customer support
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Trusted source for outdoor power equipment parts and accessories
Restore dependable engine sealing with the STIHL 9640 003 0955 Oil Seal. Built to genuine OEM standards, this premium replacement seal provides reliable leak protection, long-lasting durability, and the precise fit needed to keep your STIHL equipment operating at peak performance.



