Description
Overview:
This Genuine Stihl Cylinder with Piston is a complete top-end replacement for the MS 171 and MS 171 C petrol chainsaws. The precision-machined 37 mm (approx. 1.46 in) bore helps restore correct compression and reliable ignition, supporting smooth running and full power under load. The cylinder is manufactured from a robust aluminium alloy with a hard-wearing plated bore, paired with a matching lightweight piston for optimal heat transfer and durability in two‐stroke applications. Designed as a direct OEM fit, it maintains original performance, emissions, and fuel efficiency when the original cylinder has worn, scored, or seized. Supplied as an OEM assembly for straightforward servicing, it is identified by Stihl MPN 1139 020 1200 for accurate selection and reordering.
Key Features:
- Genuine Stihl OEM part for assured fit and compatibility on MS 171 series
- 37 mm (1.46 in) cylinder and matched piston to restore engine compression
- Durable aluminium alloy construction with wear-resistant bore coating
- Helps recover power, starting performance, and fuel efficiency
- Direct replacement part reduces setup time and avoids modifications
- Engineered to Stihl tolerances for reliability and long service life
- Suitable for routine overhaul after scoring, loss of compression, or high hours
- OEM reference MPN 1139 020 1200 for easy identification
Typical Applications:
Used during engine rebuilds or repairs on Stihl MS 171 series chainsaws to fix low compression, hard starting, loss of power, or visible cylinder wear. Ideal for professional arborists, landscapers, and homeowners who need dependable cutting performance for logging, pruning, and general property maintenance.
Also known as:
Cylinder kit, top-end kit, barrel and piston, piston and cylinder assembly, engine cylinder set, replacement barrel, top-end rebuild kit for two-stroke chainsaws.
Fits Models:
MS 171, MS 171 C, MS171, MS171C
Alternate Part Numbers:
1139-020-1200, 11390201200
Product Specifications
| L&S Part No. | 1139 020 1200 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 11390201200 |
| Unit of Sale | 1 |
| Applications | MS 171, MS 171 C, MS171, MS171C |
| Machine Type | Chainsaws |
| Fits Brands | Stihl |
| Fits Models | MS171, MS171C |
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