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Description
1123 640 7102 – Worm Gear (Genuine STIHL OEM Part)
The STIHL 1123 640 7102 Worm Gear is a genuine STIHL OEM drive component designed to transfer rotational motion from the clutch assembly to the oil pump, ensuring consistent bar and chain lubrication during operation. This precision-molded worm gear plays a critical role in maintaining proper oil delivery, protecting the guide bar and chain from excessive wear.
Engineered to STIHL’s exact specifications, this worm gear is built for durability, smooth engagement, and long service life under demanding cutting conditions.
Product Details
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Part Number: 1123 640 7102
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Description: Worm Gear
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Function: Drives oil pump from clutch rotation
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Brand: STIHL
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OEM Status: Genuine STIHL OEM
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Condition: New
Key Benefits
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Ensures reliable oil pump operation
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Maintains consistent bar and chain lubrication
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Precision-fit for smooth, quiet engagement
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Durable construction resists heat and wear
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Direct OEM replacement for correct performance
Applications
Used in the oil pump drive and clutch area of the following STIHL chainsaws, including but not limited to:
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MS 170 / MS 171
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MS 180 / MS 180 C-BE
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MS 181 / MS 181 C-BE
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MS 182 / MS 182 C-BE
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MS 191 T
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MS 210 / MS 210 C-BE
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MS 211 / MS 211 C-BE
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MS 230 / MS 230 C-BE
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MS 231 C-BE
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MS 250 / MS 250 C-B / C-BE
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MS 251 / MS 251 C-BE / MS 251 WoodBoss
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MS 212 C-BE
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021 / 023 / 025 series
Replacing a worn or damaged worm gear with the 1123 640 7102 STIHL Genuine OEM Worm Gear helps restore proper oil pump function, protects cutting components, and ensures safe, reliable chainsaw operation.
