Products Description
MS070 Chainsaw Cylinder Assembly 58mm – Complete Top-End Rebuild Ki
High-Performance 58mm Cylinder Kit for STIHL 070 & Compatible Professional Saws
This 58mm cylinder assembly is a complete top-end rebuild kit designed for the 105cc STIHL 070, MS070, and compatible professional chainsaws . The 58mm bore is the standard specification for the 070 engine platform, delivering 105cc displacement and up to 4.8kW (6.5HP) of power output . The kit includes the cylinder, piston, piston rings, wrist pin, and circlips – all components needed for a full engine restoration when original parts have suffered from wear, scoring, or seizure . Engineered with a cast iron multi-layer cylinder and chrome-plated aluminum piston, this assembly restores engine compression and power output, making it ideal for professional forestry, milling, and heavy-duty cutting applications .
Technical Profiles & Materials
High-Durability Cast Iron Cylinder – The cylinder features a multi-layer cast iron construction with integrated cooling fins for high thermal conductivity and efficient heat dissipation, ensuring extended service life under demanding high-performance applications .
Chrome-Plated Aluminum Piston – The lightweight aluminum piston features a chrome-plated surface that reduces friction and wear, promoting long engine life and maintaining compression integrity .
Multi-Layer Fin Design for Heat Dissipation – The cylinder incorporates a multi-layer fin design that optimizes heat dissipation, preventing overheating during continuous heavy-load operation in demanding forestry and milling tasks .
Technical Specifications
| # | Parameter | Specification |
|---|---|---|
| 1 | OEM Part No. | 1106 020 1202 |
| 2 | Cylinder Bore | 58 mm |
| 3 | Engine Displacement | 105 cc |
| 4 | Power Output | 4.5 – 4.8 kW / 6.0 – 6.5 HP |
| 5 | Compatible Models | STIHL 070, MS070 |
| 6 | Also Compatible | 105cc clone/aftermarket models |
| 7 | Cylinder Material | Cast Iron (multi-layer with fins) |
| 8 | Piston Material | Aluminum with Chrome-Plated Surface |
| 9 | Kit Contents | Cylinder, piston, piston rings, wrist pin, circlips |
| 10 | Cylinder Gasket OEM | 1106 029 2300 (for 58mm) |
| 11 | Recommended Bar Length | 28″ – 42″ |
| 12 | Chain Pitch | 0.404″ |
Products Application
Professional Forestry & Logging
The 58mm cylinder assembly is ideal for high-hour professional saws used in demanding forestry operations. Replacing a worn cylinder restores full engine compression and power (up to 4.8kW), enabling efficient cutting of large-diameter timber with 28″ to 42″ guide bars . The robust construction withstands continuous heavy-duty use in commercial logging environments.
Alaskan Sawmill & Milling Operations
This 58mm top-end kit is perfectly suited for 070 saws used in Alaskan sawmills and milling applications, where the 105cc engine platform provides the torque needed for ripping logs into lumber. The multi-layer fin design ensures reliable cooling during extended milling cuts .
Professional Chainsaw Restoration
For collectors and professionals restoring classic STIHL 070 saws to working condition, this cylinder assembly is an essential component. The 58mm bore is the factory specification for the 070, and aftermarket kits provide a cost-effective solution for maintaining these legendary machines without compromising on performance .
Quality and Craftsmanship Details
Products Package
About Us
As a premier garden machinery parts supplier, Jiaxing Norsun Trading Co., Ltd. bridges global distributors with over 100 vetted China manufacturers. We streamline your B2B supply chain through strict quality control, flexible production, and factory-direct wholesale pricing. Partner with us for reliable, high-volume sourcing of precision-engineered outdoor power equipment components.
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FAQ
Q: How do I confirm this 58mm cylinder assembly fits my 070 chainsaw?
A:Check your chainsaw model number on the housing. This 58mm cylinder assembly is designed for STIHL 070, MS070, and compatible 105cc clone/aftermarket models. It replaces OEM part number 1106 020 1202 . Note that the 090 uses a different 66mm cylinder and the two are not interchangeable – the bore size is the primary distinguishing feature between these models . Verify your existing cylinder bore size before ordering.
Q: What is included in a complete 58mm cylinder assembly kit?
A: A complete kit includes the cylinder, piston, piston rings, wrist pin, and circlips – all components required for a full top-end engine rebuild . The cylinder gasket (OEM 1106 029 2300) is available separately . Comprehensive gasket sets (OEM 1106 007 1050) are also available, which include all necessary gaskets and seals for a complete engine overhaul .
Q: What is the advantage of the cast iron multi-layer fin design?
A: The cast iron multi-layer design with cooling fins provides high thermal conductivity and efficient heat dissipation, ensuring engine reliability during extended high-performance applications . The chrome-plated aluminum piston surface reduces friction and wear, promoting long engine life. Aftermarket kits from ISO-certified manufacturers can offer triple the heat dissipation efficiency of basic models while maintaining OEM compatibility .
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