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- 1127 664 2405 – STIHL Bar Stud (Genuine OEM Part)
Description
1127 664 2405 – STIHL Bar Stud (Genuine OEM Part)
The STIHL 1127 664 2405 is a genuine OEM bar stud, designed to securely mount the guide bar and side cover on compatible STIHL chainsaws. This component is critical for maintaining correct bar alignment, secure chain tensioning, and safe cutting operation.
Manufactured to STIHL’s original equipment specifications, the bar stud is made from high-strength steel to withstand vibration, load, and repeated bar removal during service. Using a genuine STIHL bar stud ensures correct thread engagement, proper clamping force, and long-term reliability of the bar mounting system.
Product Details
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Manufacturer Part Number: 1127 664 2405
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Brand: STIHL
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Part Type: Bar Stud
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System: Guide bar / chain mounting system
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Function: Secures guide bar and side cover to crankcase
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Material: High-strength steel
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OEM Status: Genuine STIHL OEM replacement
Function
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Holds the guide bar firmly in position
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Allows proper chain tension adjustment
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Maintains safe and stable bar mounting during operation
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 bar stud threads into the crankcase of the chainsaw and passes through the guide bar and side cover. The bar nuts tighten onto the stud to clamp the bar securely while still allowing controlled movement during chain tension adjustment.
Correct installation is essential for safe cutting and preventing bar movement or chain derailment.
Suggested Maintenance
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Inspect bar studs during routine chain and bar service
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Check threads for damage, stretching, or loosening
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Ensure studs are securely seated in the crankcase
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Replace the bar stud if threads are worn or if the bar cannot be tightened securely
The STIHL 1127 664 2405 Bar Stud is used in OEM-specified bar mounting systems where strength, precise fit, and reliable clamping are essential for safe chainsaw operation.
