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- 4182 640 0145 STIHL Gear Head – Genuine OEM Part
Description
4182 640 0145 STIHL Gear Head – Genuine OEM Part
The STIHL Gear Head (4182 640 0145) is a genuine OEM replacement gear head designed for use on select STIHL professional battery-powered pole pruners and high-reach pruning systems.
This gear head is installed at the cutting end of the drive tube assembly and transfers power from the internal driveshaft to the saw chain, providing the proper gear reduction for smooth, efficient, and controlled cutting performance. Reliable gear head operation is essential for professional pruning efficiency, long service life, and safe operation.
Manufactured to STIHL factory specifications, this OEM gear head ensures correct fitment, strength, and durability under demanding working conditions.
Replacing a worn, damaged, or noisy gear head helps restore proper driveline function and prevents further damage to internal drivetrain components.
Product Details
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OEM Part Number: 4182 640 0145
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Brand: STIHL (Genuine OEM)
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Part Type: Gear Head
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Application: Pole pruner gear head / drive tube assembly (model-specific)
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Condition: New Genuine OEM Part
Function
This OEM gear head is designed to:
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Transfer power from the driveshaft to the cutting attachment
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Provide correct gear reduction for pole pruner operation
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Support smooth, efficient cutting performance
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Replace worn or damaged gear heads
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Help prevent driveline noise, vibration, or failure
⚠️ A damaged gear head may cause loss of power, excessive noise, or unsafe operation.
Verify Fitment (Recommended)
Before ordering, confirm:
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OEM part number 4182 640 0145
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Gear head configuration matches your model
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Application matches your STIHL illustrated parts diagram
⚠️ Gear head assemblies vary by model and drive tube configuration — always verify fitment by OEM part number.
Compatibility
Fits select STIHL models and configurations, including:
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HTA 135 (Gear head)
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HT 135 (Gear head)
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HTA 135 3/8"P Akku-Hoch-Entaster (Gear head)
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HTA 160.0 (Gear head)
(Exact application depends on configuration — verify using OEM parts diagram.)
Installation Notes
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Remove cutting attachment and drive tube components as required
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Replace gear head 4182 640 0145 in correct orientation
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Ensure proper driveshaft engagement
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Lubricate gear head as specified by STIHL
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Reassemble components securely
⚠️ Gear head service should be performed by a qualified technician.
Maintenance Tips
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Keep gear head properly lubricated at service intervals
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Inspect for leaks, noise, or excessive play
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Replace worn gear heads promptly to prevent driveline damage
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Always use genuine STIHL OEM gear components for correct fit and durability

