Description
0000 642 1221 STIHL Rim Sprocket 3/8″ Pitch, 7-Tooth (Genuine OEM)
The STIHL 0000 642 1221 rim sprocket is a genuine OEM 3/8″ pitch, 7-tooth rim sprocket designed for compatible STIHL professional and legacy chainsaws. This sprocket transfers power from the clutch to the saw chain, ensuring smooth operation, consistent chain speed, and reduced wear on clutch and chain components.
Rim-style sprockets provide improved serviceability and longer component life compared to spur sprockets, making them ideal for professional and frequent-use saws.
Key Details
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Brand: STIHL
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OEM Part Number: 0000 642 1221
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Part Type: Rim Sprocket
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Pitch: 3/8″
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Tooth Count: 7T
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OEM Status: Genuine STIHL replacement part
Primary Applications
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Chain sprocket assemblies
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Clutch assemblies
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Oil pump drive systems (select models)
Designed for dependable power transfer in professional cutting applications.
Fits STIHL Chainsaw Models
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045 AVRSE
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045 AVEK-1
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045 AVRE
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045 AVRSEQ
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042 R
(Chain sprocket and clutch applications; oil pump drive on select models.)
Always verify chain pitch, tooth count, and clutch drum compatibility before ordering.
Why Replace the Rim Sprocket?
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Maintains proper chain speed and cutting performance
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Reduces wear on the clutch drum and chain
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Improves power transfer efficiency
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Simple, cost-effective wear-item replacement
The STIHL 0000 642 1221 rim sprocket provides proper OEM fit, smooth engagement, and long service life for compatible STIHL chainsaws.
