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- 1143 664 2401 – STIHL Collar Screw (Genuine OEM Part)
Description
1143 664 2401 – STIHL Collar Screw (Genuine OEM Part)
The STIHL 1143 664 2401 is a genuine OEM collar screw designed to securely fasten components within the motor housing on compatible STIHL power equipment. This fastener features an integrated collar to provide proper spacing, load distribution, and secure mounting without the need for separate washers.
Manufactured to STIHL’s original equipment specifications, this collar screw is produced from high-strength, corrosion-resistant metal to withstand vibration, engine heat, and continuous operation. Using a genuine STIHL collar screw ensures correct fit, proper clamping force, and long-term reliability.
Product Details
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Manufacturer Part Number: 1143 664 2401
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Brand: STIHL
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Part Type: Collar Screw
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System: Motor housing / Fastening hardware
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Function: Secures motor housing and internal components
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Material: Hardened, corrosion-resistant steel
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OEM Status: Genuine STIHL OEM replacement
Function
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Provides secure fastening of motor housing components
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Integrated collar ensures proper spacing and load distribution
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Helps prevent loosening due to vibration
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Maintains correct component alignment
Compatible With STIHL Equipment
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MS 251 C-BE (Motor housing)
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MS 251 (Motor housing)
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MS 251 WoodBoss (Motor housing)
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MS 231 C-BE (Motor housing)
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GTA 30.0 (Spare parts)
How It’s Used
This collar screw installs through designated mounting points in the motor housing or related assemblies. The built-in collar helps ensure consistent clamping force and correct alignment during assembly.
Proper tightening to STIHL-specified torque values is recommended.
Suggested Maintenance
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Inspect threads for wear or damage during service
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Ensure correct torque during installation
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Replace the screw if threads are stripped or the collar is damaged
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Use only OEM fasteners to maintain proper fit and strength
The STIHL 1143 664 2401 Collar Screw is used in OEM-specified motor housing applications where secure fastening, durability, and proper component alignment are essential.
