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Description
1121 791 6105 – STIHL Collar Screw (Genuine STIHL OEM Fastener)
The STIHL 1121 791 6105 Collar Screw is a genuine OEM replacement fastener designed for compatible STIHL chainsaws and outdoor power equipment. Engineered to STIHL's exact factory specifications, this precision collar screw combines a threaded fastener with an integrated shoulder (collar), providing secure fastening, accurate component alignment, and consistent spacing in critical assemblies.
Manufactured from high-strength hardened steel with a corrosion-resistant finish, the 1121 791 6105 Collar Screw is built to withstand engine vibration, repeated service, and demanding forestry and landscaping applications. Using a genuine STIHL OEM fastener helps maintain proper assembly integrity and reliable equipment performance.
Product Details
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Part Number: 1121 791 6105
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Brand: STIHL
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Part Type: Collar Screw
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Function: Secures and aligns mechanical components with an integrated shoulder
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Material: Hardened High-Strength Steel
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Finish: Corrosion-Resistant Coating
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Installation: Direct OEM Replacement
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OEM Status: Genuine STIHL OEM Part
Key Features
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Genuine STIHL OEM collar screw
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Integrated collar for precise positioning
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High-strength hardened steel construction
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Corrosion-resistant finish
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Excellent resistance to vibration
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Precision-machined for factory fit
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Long service life
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Direct replacement with no modifications required
Function
The 1121 791 6105 Collar Screw secures critical engine or housing components while the integrated collar provides accurate spacing and alignment. This design helps reduce stress on adjoining parts and maintains proper assembly under continuous vibration and heavy operating conditions.
Compatible STIHL Models
The STIHL 1121 791 6105 Collar Screw is used on selected STIHL chainsaws and other STIHL outdoor power equipment requiring OEM part number 1121 791 6105.
Common applications include selected:
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STIHL 024
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STIHL 026
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STIHL MS 240
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STIHL MS 260
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Additional STIHL equipment specifying OEM part number 1121 791 6105
Always verify your equipment model, serial number, illustrated parts diagram, and original OEM part number before ordering to ensure proper compatibility.
Who Is This For?
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Professional arborists
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Forestry professionals
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Tree service companies
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Outdoor power equipment technicians
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STIHL chainsaw owners
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Small engine repair shops
Recommended Applications
Ideal for:
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Chainsaw repairs
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Engine assembly
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Housing replacement
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Preventive maintenance
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Equipment restoration
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OEM hardware replacement
Pros
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Genuine STIHL OEM quality
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Precision factory dimensions
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Integrated collar for accurate alignment
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Hardened steel construction
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Corrosion-resistant finish
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Excellent vibration resistance
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Long service life
Cons
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Compatible only with equipment utilizing OEM part number 1121 791 6105
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Fastener should be replaced if threads or collar become damaged
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Always tighten according to STIHL service specifications
Comparison – STIHL 1121 791 6105 OEM Collar Screw vs Aftermarket Fasteners
STIHL 1121 791 6105 Genuine OEM Collar Screw
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Exact OEM dimensions and shoulder design
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Premium hardened steel construction
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Precision alignment
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Superior corrosion resistance
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Designed specifically for STIHL equipment
Aftermarket Collar Screws
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May vary in shoulder dimensions and thread tolerances
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Variable material quality
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Potential fitment inconsistencies
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Reduced durability under heavy-duty use
Why Buy from Barry's Power Equipment?
Barry's Power Equipment is an authorized STIHL dealer supplying genuine OEM replacement parts trusted by professional arborists, contractors, landscapers, and outdoor power equipment technicians.
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Genuine STIHL OEM replacement parts
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Fast nationwide shipping
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Competitive pricing
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Expert technical support
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Extensive inventory for STIHL, Scag, Wright, Toro, Exmark, Ariens, Gravely, Ferris, Kawasaki, Kohler, Honda, Briggs & Stratton, Cub Cadet, and John Deere equipment.
