Description
1125 007 1021 – STIHL Chain Tensioner and Spur Gear Kit
The 1125 007 1021 kit includes a chain tensioning screw, spur gear, and O‑ring designed for use with STIHL chainsaws. Manufactured from heat‑treated steel, this set matches factory specifications to ensure proper chain tension adjustment and drivetrain engagement.
Specifications:
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Part Number: 1125 007 1021
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Contents: Adjusting screw, spur gear, and O‑ring
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Material: Heat‑treated steel and durable sealing O‑ring
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Function: Tensioning the guide bar chain by engaging the screw with the gear mechanism
Compatibility:
Fits a wide range of STIHL chainsaws equipped with a chain tension adjuster assembly, including:
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MS 024, MS 026, MS 028, MS 034, MS 036, MS 044, MS 046, MS 064, MS 066
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MS 260, MS 261, MS 270, MS 280, MS 340, MS 341, MS 360, MS 361, MS 362, MS 380, MS 381
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MS 440, MS 441, MS 460, MS 462, MS 500i, MS 640, MS 650, MS 660, MS 661
Usage:
Used during routine maintenance or when replacing worn tension mechanism components. Restores chain tension adjustment to OEM-level function.
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