Description
Overview:
This Tensioner Slide is a genuine Stihl component for the chain adjuster assembly on selected chainsaws and pole pruners, including the Stihl HT73 and MS230. Supplied under MPN 1123 640 1900, it is designed to keep chain tension accurate and chain alignment true, helping the bar, sprocket and chain work efficiently. The slide is a hard‐wearing black polymer piece that moves smoothly with the adjuster screw to advance or retract the guide bar during tensioning. It suits petrol, electric and battery models listed below and integrates with existing OEM hardware without modification. As a Genuine Stihl part, it matches the original specification for fit and function, supporting reliable performance and long service life when carrying out routine maintenance or chain and bar changes.
Key Features:
- Genuine Stihl OEM part (MPN 1123 640 1900) for assured compatibility and correct fit
- Durable, oil- and fuel-resistant polymer construction for long service life
- Precision-moulded slide for smooth movement and consistent chain alignment
- Helps reduce wear on bar, sprocket and chain by maintaining even tension
- Enables fine, repeatable chain tension adjustments during servicing
- Direct replacement part; no modifications or special tools typically required
- Stable under vibration and temperature changes common to chainsaw use
- Broad model coverage across Stihl chainsaws and pole pruners
Typical Applications:
Used during chain fitting, bar replacement, and routine tension checks in workshops or on site. Helps compensate for chain stretch, temperature-related expansion, and bedding-in after sharpening. Suitable for day-to-day maintenance of professional and domestic Stihl saws and pole pruners to keep cutting performance consistent and safe.
Also known as:
Chain tensioner slide, adjuster slide, chain adjuster block, tensioning slide, tensioner shoe, adjuster guide, chain guide slider, saw chain tension guide.
Fits Models:
019T, 021, 023, 025, E140, E160, E180, E180C, HT-KM, HT-KM Pole Pruner, HT100, HT101, HT130, HT131, HT250, HT56 C, HT56C, HT70, HT70K, HT73, HT75, HTA 85, HTA65, HTA85, HTE60, HTKM, MS171, MS171C, MS180, MS180C, MS181, MS181C, MS190T, MS191T, MS210, MS210C, MS211, MS211C, MS230, MS230C, MS231, MS231C, MS241C, MS250, MS250C, MS251, MS251C, MSA160T, MSA161T, MSE140, MSE141 C, MSE141C, MSE160, MSE170, MSE180, MSE190, MSE200, MSE210, MSE230
Alternate Part Numbers:
1123-640-1900, 11236401900
Product Specifications
| L&S Part No. | 1123 640 1900 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 11236401900 |
| Unit of Sale | 1 |
| Applications | 019T, 021, 023, 025, E140, E160, E180, E180C, HT-KM, HT-KM Pole Pruner, HT100, HT101, HT130, HT131, HT250, HT56 C, HT56C, HT70, HT70K, HT73, HT75, HTA 85, HTA65, HTA85, HTE60, HTKM, MS171, MS171C, MS180, MS180C, MS181, MS181C, MS190T, MS191T, MS210, MS210C, MS211, MS211C, MS230, MS230C, MS231, MS231C, MS241C, MS250, MS250C, MS251, MS251C, MSA160T, MSA161T, MSE140, MSE141 C, MSE141C, MSE160, MSE170, MSE180, MSE190, MSE200, MSE210, MSE230 |
| Machine Type | Chainsaws |
| Fits Brands | Stihl |
| Fits Models | MS180, MS180C | MS230, MS230C | MS250, MS250C | MS171, MS171C | MS181, MS181C | MS211, MS211C | 019T | 021, 023, 025 | MS231, MS251 | MS241C | E140, E160, E180 | MSE140, MSE160, MSE180, MSE200 | MSE141 C | MSE170, MSE190, MSE210, MSE230 | MSA160T | HT56 C | HT70, HT70K, HT75 | HT73 | HT101 | HT130 | HT131 | HTE60 | HTA65 | MS190T | MS191T | HT-KM Pole Pruner | MSA161T | HTA 85 | MSA190 T | HT |
