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- 1127 640 3204 – STIHL Oil Pump (Genuine OEM Part)
Description
1127 640 3204 – STIHL Oil Pump (Genuine OEM Part)
The STIHL 1127 640 3204 is a genuine OEM oil pump, designed to deliver consistent bar and chain lubrication on compatible STIHL chainsaws. This oil pump is a critical component of the chain lubrication system, ensuring proper oil flow to reduce friction, heat, and premature wear of the guide bar and saw chain.
Manufactured to STIHL’s original equipment specifications, this oil pump is engineered for precise oil delivery, durability, and reliable performance under continuous operating conditions. Using a genuine STIHL oil pump ensures correct fitment, proper lubrication rate, and long-term drivetrain protection.
Product Details
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Manufacturer Part Number: 1127 640 3204
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Brand: STIHL
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Part Type: Oil Pump
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System: Chain lubrication system
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Function: Supplies bar oil to guide bar and chain
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Material: High-strength metal and engineered polymer components
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OEM Status: Genuine STIHL OEM replacement
Function
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Delivers controlled oil flow to the bar and chain
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Reduces friction and heat during cutting
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Extends guide bar and chain service life
Compatible With STIHL Chainsaws
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MS 290 (029)
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MS 310 (029 Super)
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MS 390 (039)
How It’s Used
This oil pump installs inside the crankcase, driven by the worm gear connected to the clutch system. As the engine operates, the pump supplies bar oil through internal channels to the guide bar, ensuring continuous lubrication during cutting.
Proper installation and alignment are essential to maintain correct oil delivery and prevent chain overheating.
Suggested Maintenance
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Regularly check chain oil flow during operation
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Inspect the oil pump when servicing the clutch or worm gear
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Clean oil passages to prevent blockage from debris
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Replace the oil pump if oil delivery becomes weak or inconsistent
The STIHL 1127 640 3204 Oil Pump is used in OEM-specified lubrication systems where reliable oil flow, durability, and consistent cutting performance are essential.
