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- 0000 642 1221 – STIHL® Rim Sprocket 3/8" Pitch, 7-Tooth (Genuine OEM)
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.
