Description
Replacement Chain Sprocket Drum – 3/8" Pitch, 7 Tooth (7T)
OEM Part Number: 1125 640 2004
Condition: Brand New | High-Quality Aftermarket Replacement
Give your Stihl chainsaw the performance it deserves with this precision-engineered chain sprocket drum. Designed for a wide range of Stihl models, this replacement part offers smooth operation, durable construction, and reliable power transfer.
✅ Fits the Following Stihl Chainsaw Models:
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036, 029, 039, MS290, MS310, MS390, 034
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Stihl 036, Stihl 029, Stihl 039, Stihl MS290, Stihl MS310, Stihl MS390, Stihl 034
If your model is listed above, this part is a direct fit.
🔁 Replaces OEM and Aftermarket Part Numbers:
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1125 640 2004
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11256402004
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Oregon 38145X
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GB ST316-A7N
⚙️ Product Features:
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Pitch: 3/8"
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Tooth Count: 7T (7-Tooth)
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Type: Sprocket Drum
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Application: Chain drive system replacement
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Built for: Heavy-duty use, long lifespan, and smooth operation
🔧 Why Choose This Sprocket Drum?
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Easy to install
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Compatible with many popular Stihl chainsaws
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Ideal replacement for worn-out or damaged sprockets
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Delivers professional-grade performance for homeowners and contractors alike
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