1123 640 1900 – Tensioner Slide (Genuine STIHL OEM Part)
The STIHL 1123 640 1900 Tensioner Slide is a genuine STIHL OEM chain tensioning component designed to guide and support the chain adjusting mechanism within the chain sprocket cover or gear head assembly. This part allows smooth, precise chain tension adjustment, helping maintain correct chain fit and safe cutting performance.
Manufactured to STIHL’s exact specifications, this tensioner slide is built for durability and consistent operation under vibration, load, and outdoor working conditions.
Product Details
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Part Number: 1123 640 1900
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Description: Tensioner Slide
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Function: Guides chain adjusting screw for proper chain tension
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Brand: STIHL
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OEM Status: Genuine STIHL OEM
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Condition: New
Key Benefits
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Enables accurate and smooth chain tension adjustment
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Helps maintain proper chain alignment and engagement
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Reduces chain derailment and uneven wear
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Durable OEM construction for long service life
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Direct replacement for exact OEM fit
Applications
Commonly used in chain sprocket covers, chain tensioners, and gear head assemblies on the following STIHL equipment, including but not limited to:
Chainsaws
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MS 171
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MS 180
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MS 181
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MS 191 T
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MS 211
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MS 241 C-M
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MS 250 / MS 251 / MS 251 WoodBoss
Pole Pruners & Attachments
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HT, HT-KM
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HT 70, HT 73, HT 75
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HT 100, HT 101
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HT 130, HT 131, HT 132
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HTA 65, HTA 85
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HT 250
Battery / Electric Models
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MSA 161 T
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MSA 190.0 T
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MSE 141 C-Q
(Always confirm compatibility using your STIHL model and serial number.)
Replacing a worn or damaged tensioner slide with the 1123 640 1900 Genuine STIHL OEM part helps restore proper chain adjustment, improves cutting safety, and ensures your STIHL equipment operates as designed.
