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- 1128 640 7112 – STIHL Worm Gear (Genuine OEM Part)
Description
1128 640 7112 – STIHL Worm Gear (Genuine OEM Part)
The STIHL 1128 640 7112 Worm Gear is a genuine OEM drive component designed to transfer rotational motion from the crankshaft to the oil pump on STIHL chainsaws. This worm gear plays a critical role in the chain lubrication system by ensuring consistent oil delivery to the guide bar and saw chain during operation.
Manufactured to STIHL’s exact original equipment specifications, the 1128 640 7112 worm gear provides precise fitment, smooth engagement, and dependable performance under continuous load and high operating speeds. Proper function of the worm gear is essential for maintaining correct chain lubrication, reducing wear, and extending the service life of cutting components.
Product Details
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Part Number: 1128 640 7112
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Brand: STIHL
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Part Type: Worm Gear
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OEM Status: Genuine STIHL OEM
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Condition: New
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Function: Drives oil pump for chain lubrication
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Material: High-strength engineered polymer
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Installation: Direct-fit OEM replacement
Compatibility
The STIHL 1128 640 7112 Worm Gear is used on select STIHL chainsaw models equipped with an automatic chain oiling system. It is typically installed within the oil pump drive assembly, engaging the crankshaft to power the lubrication system.
Common applications include STIHL chainsaws built on compatible engine platforms using STIHL oil pump and clutch assemblies.
Applications
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Oil pump drive system
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Chain lubrication mechanism
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Crankshaft-driven oiling assemblies
The 1128 640 7112 STIHL Worm Gear delivers OEM-level fit and reliable oil pump drive performance, making it the correct replacement part for maintaining proper chain lubrication and dependable operation on compatible STIHL chainsaws.
