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- 4182 664 2401 STIHL Collar Screw M8 – Genuine OEM Part
Description
4182 664 2401 STIHL Collar Screw M8 – Genuine OEM Part
The STIHL Collar Screw M8 (4182 664 2401) is a genuine OEM fastener designed for use in the gear head assemblies of select STIHL pole pruners and KombiSystem pole pruner attachments.
This collar screw is used to securely fasten gear head components, ensuring proper alignment, stability, and safe operation of the cutting attachment. Correct fastening hardware is essential for maintaining driveline integrity, minimizing vibration, and preventing premature wear or component failure.
Manufactured to STIHL factory specifications, this OEM collar screw provides precise fitment, correct thread pitch, and the strength required for professional-duty operating conditions.
Replacing worn, damaged, or missing collar screws helps maintain proper gear head retention and prevents loosening during operation.
Product Details
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OEM Part Number: 4182 664 2401
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Brand: STIHL (Genuine OEM)
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Part Type: Collar Screw
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Thread Size: M8
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Application: Gear head fastener / mounting hardware (model-specific)
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Condition: New Genuine OEM Part
Function
This OEM collar screw is designed to:
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Secure gear head components to the drive tube assembly
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Maintain proper alignment of the gear head
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Reduce vibration and component movement
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Replace worn, damaged, or missing fasteners
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Support safe and reliable pole pruner operation
⚠️ Loose or damaged fasteners may cause gear head movement, vibration, or unsafe operation.
Verify Fitment (Recommended)
Before ordering, confirm:
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OEM part number 4182 664 2401
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M8 collar screw specification matches your application
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Application matches your STIHL illustrated parts diagram
⚠️ Fasteners may vary by model and gear head configuration — always verify fitment by OEM part number.
Compatibility
Fits select STIHL models and configurations, including:
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HT 250 (Gear head)
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HTA 135 (Gear head)
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HT 135 (Gear head)
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HT 134 (Gear head)
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HT 105 (Gear head)
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HT (Gear head 1/4" 8T)
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HTA 135 3/8"P Akku-Hoch-Entaster (Gear head)
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HT-KM (Gear head 1/4" 8T)
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HTA 150.0 (Gear head 3/8" 7T)
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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 gear head fasteners as required
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Install collar screw 4182 664 2401 in correct location
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Tighten to STIHL-specified torque settings
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Inspect surrounding components for wear
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Reassemble securely
⚠️ Always follow STIHL service procedures and torque specifications.
Maintenance Tips
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Periodically check fasteners for tightness
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Replace stretched, corroded, or damaged screws
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Use only genuine STIHL OEM fasteners for proper fit and strength
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Inspect gear head hardware during routine maintenance
