×
Call or Text us: (+239) 332 1305
- Home
- STILH BRAND
- 1125 640 1900 – STIHL Tensioner Slide (Genuine OEM Part)
Description
1125 640 1900 – STIHL Tensioner Slide (Genuine OEM Part)
The STIHL 1125 640 1900 is a genuine OEM tensioner slide, designed to support accurate chain tension adjustment on compatible STIHL chainsaws. This component works within the chain tensioning system to guide the tensioner mechanism, allowing smooth and precise adjustment of chain slack for safe and efficient operation.
Manufactured to STIHL’s original equipment specifications, the tensioner slide is built from durable, wear-resistant material to withstand repeated adjustments, vibration, and harsh cutting conditions. Using a genuine STIHL tensioner slide ensures proper alignment, smooth operation, and long-term reliability of the chain tensioning system.
Product Details
-
Manufacturer Part Number: 1125 640 1900
-
Brand: STIHL
-
Part Type: Tensioner Slide
-
System: Chain tensioning system
-
Function: Guides and supports chain tension adjustment
-
Material: High-strength engineered polymer
-
OEM Status: Genuine STIHL OEM replacement
Function
-
Guides the chain tensioner during adjustment
-
Allows precise and smooth chain tension control
-
Helps maintain correct chain fit on the guide bar
Compatible With STIHL Chainsaws
-
MS 290
-
MS 310
-
MS 390
How It’s Used
This tensioner slide installs inside the side cover / chain tensioning assembly. When the chain tension screw is turned, the slide moves to adjust the position of the guide bar, tightening or loosening the chain as needed. Proper operation ensures safe cutting and reduces chain derailment risk.
Correct installation is essential for accurate chain tensioning and overall drivetrain performance.
Suggested Maintenance
-
Inspect the tensioner slide during routine chain service
-
Check for cracking, excessive wear, or binding movement
-
Keep the tensioning area clean from sawdust and debris
-
Replace the slide if chain adjustment becomes rough or inconsistent
The STIHL 1125 640 1900 Tensioner Slide is used in OEM-specified chain tensioning systems where smooth adjustment, durability, and proper chain control are essential.

