Description
1137 640 2007 – STIHL Chain Sprocket (Genuine STIHL OEM Drive Sprocket)
The STIHL 1137 640 2007 Chain Sprocket is a genuine OEM replacement drive sprocket engineered for compatible STIHL chainsaws. Manufactured to STIHL’s exact engineering standards, this precision-machined sprocket transfers engine power from the clutch drum to the saw chain, ensuring smooth chain movement, efficient power delivery, and optimal cutting performance.
Constructed from high-strength, heat-treated steel, the 1137 640 2007 Chain Sprocket is built to withstand high rotational speeds, heavy cutting loads, and continuous professional use. Replacing a worn sprocket with a genuine STIHL OEM part helps reduce premature chain wear, improve cutting efficiency, and extend the life of the bar and chain.
Product Details
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Part Number: 1137 640 2007
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Brand: STIHL
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Part Type: Chain Sprocket
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Function: Transfers engine power from the clutch to the saw chain
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Material: Heat-Treated Hardened Steel
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Installation: Direct OEM Replacement
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OEM Status: Genuine STIHL OEM Part
Key Features
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Genuine STIHL OEM replacement chain sprocket
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Precision-machined for smooth chain engagement
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Heat-treated hardened steel construction
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Promotes efficient power transfer
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Helps reduce chain and guide bar wear
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Designed for professional and heavy-duty use
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Factory-correct fit
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Direct replacement with no modifications required
Function
The 1137 640 2007 Chain Sprocket transfers rotational power from the clutch assembly to the saw chain, allowing the chain to travel smoothly around the guide bar. Maintaining a properly functioning sprocket ensures efficient cutting performance, minimizes drivetrain wear, and improves overall chainsaw reliability.
Compatible STIHL Models
The STIHL 1137 640 2007 Chain Sprocket fits selected STIHL chainsaws utilizing OEM part number 1137 640 2007, including:
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STIHL MS 171
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STIHL MS 171 C
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STIHL MS 181
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STIHL MS 181 C
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STIHL MS 211
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STIHL MS 211 C
It may also fit additional STIHL models that specify this OEM part number.
Always verify your chainsaw model, serial number, chain pitch, illustrated parts diagram, and original OEM part number before ordering to ensure proper compatibility.
Who Is This For?
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Professional arborists
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Tree service companies
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Forestry professionals
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Firewood producers
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Chainsaw repair technicians
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STIHL chainsaw owners
Recommended Applications
Ideal for:
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Tree felling
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Limbing
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Firewood cutting
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Property maintenance
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Forestry work
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Routine chainsaw maintenance
Pros
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Genuine STIHL OEM quality
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Precision-machined for smooth chain operation
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Heat-treated hardened steel construction
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Improves power transfer efficiency
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Helps extend chain and guide bar life
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Factory-correct fit
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Long service life
Cons
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Compatible only with chainsaws utilizing OEM part number 1137 640 2007
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Sprocket should be inspected and replaced when installing multiple new chains to maximize cutting performance
Comparison – STIHL 1137 640 2007 OEM Chain Sprocket vs Aftermarket Sprockets
STIHL 1137 640 2007 Genuine OEM Chain Sprocket
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Exact OEM dimensions and tolerances
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Premium heat-treated steel construction
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Smooth, reliable chain engagement
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Designed specifically for STIHL chainsaws
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Superior durability and long service life
Aftermarket Chain Sprockets
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May vary in machining precision and hardness
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Variable wear resistance
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Potential fitment or chain alignment issues
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Reduced service life under heavy-duty use
Why Buy from Barry’s Power Equipment?
Barry’s Power Equipment is an authorized STIHL dealer supplying genuine OEM replacement parts trusted by professional arborists, forestry crews, landscapers, and outdoor power equipment technicians.
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Genuine STIHL OEM replacement parts
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Fast nationwide shipping
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Competitive pricing
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Expert technical support
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Extensive inventory for STIHL, Scag, Wright, Toro, Exmark, Ariens, Gravely, Ferris, Kawasaki, Kohler, Honda, Briggs & Stratton, Cub Cadet, and John Deere equipment.









