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- 1146 640 2004 – STIHL Chain Sprocket 1/4" Picco 8-Tooth (Genuine OEM Part)
Description
1146 640 2004 – STIHL Chain Sprocket 1/4" Picco 8-Tooth (Genuine OEM Part)
The STIHL 1146 640 2004 Chain Sprocket is a genuine OEM 1/4" Picco, 8-tooth (8T) drive sprocket designed to provide smooth, efficient power transfer from the clutch to the saw chain. Engineered specifically for lightweight STIHL arborist and compact chainsaws, this sprocket helps maintain correct chain speed, reduces vibration, and promotes even chain wear.
Manufactured to STIHL factory specifications, it ensures precise fitment, reliable engagement, and long service life when replacing a worn or damaged sprocket.
Product Details
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Manufacturer Part Number: 1146 640 2004
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Brand: STIHL
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Part Name: Chain Sprocket
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Pitch: 1/4" Picco
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Tooth Count: 8-Tooth (8T)
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OEM Status: Genuine STIHL OEM
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Condition: New
Key Benefits
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Correct 1/4" Picco pitch for compatible STIHL chains
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Smooth power transfer and consistent chain speed
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Reduces premature wear on chain and guide bar
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Precision-machined for proper clutch fitment
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Direct OEM replacement—no modifications required
Applications & Compatibility
Fits the following STIHL chainsaw models:
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MS 151 TC-E – Oil pump, Clutch
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MS 150 TC-E – Oil pump, Clutch
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MS 151 C-E – Oil pump, Clutch
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MS 150 C-E – Oil pump, Clutch
(Always confirm chain pitch and compatibility using your model and serial number before installation.)
The STIHL 1146 640 2004 1/4" Picco 8T Chain Sprocket is the correct OEM replacement to maintain smooth operation and optimal cutting performance on STIHL MS 150 and MS 151 series chainsaws.
