STIHL MS 400 C-M Petrol Chainsaw

Professional Power, Precision, and Innovation

The STIHL MS 400 C-M Petrol Chainsaw delivers professional-grade performance, precision, and innovation for demanding forestry and arborist work. It is the world’s first chainsaw to feature a magnesium piston, setting a new benchmark in cutting technology. The 66.8cc engine produces 4.0kW of power, providing 14% more displacement and torque compared to the STIHL MS 362 C-M. Designed for power, control, and endurance, it combines advanced engineering with exceptional ease of use, making it the perfect choice for professionals.

Outstanding Power-to-Weight Ratio

The magnesium piston enhances both performance and efficiency, providing an impressive power-to-weight ratio of 1.45 kg/kW. This lightweight design improves manoeuvrability and reduces fatigue during extended operation. Weighing just 5.8kg (powerhead only), the MS 400 C-M ensures excellent balance and control, even during prolonged forestry work. Its strength and precision make it ideal for felling, de-limbing, and cutting timber, offering reliability and comfort in every use.

High-Performance 2-MIX Engine

At the core of the MS 400 C-M is the STIHL 2-MIX engine, designed to deliver outstanding acceleration and power while maintaining fuel efficiency. This high-performance engine meets EU Stage V emission standards, ensuring low exhaust emissions and eco-friendly operation. The four-channel technology allows for efficient combustion, optimising fuel usage while increasing cutting speed and productivity. The result is consistent, dependable power across all working conditions.

Intelligent STIHL M-Tronic 3.0 System

The STIHL M-Tronic 3.0 system guarantees peak engine performance at all times. This advanced electronic management technology automatically adjusts ignition timing and fuel metering based on temperature, altitude, and fuel quality. The system ensures quick starts, smooth acceleration, and consistent power delivery, even during changing environmental conditions. Its simple re-calibration process ensures long-term reliability, helping you achieve optimal cutting performance with minimal effort.

Advanced Air Filtration and Engine Protection

The HD2 filter offers excellent protection against dust and debris, ensuring longer engine life and reduced maintenance. Made from PET material, it features 70% finer pores than standard filters, improving airflow and filtration efficiency. The pre-separation routing system removes larger particles before they reach the filter, extending service intervals and maintaining consistent performance. This design ensures clean operation, even in dusty forestry environments.

Built for Comfort and Durability

Constructed with cast magnesium housing, the MS 400 C-M offers exceptional strength, heat resistance, and durability. The STIHL anti-vibration system minimises operator fatigue by reducing handle vibrations, enabling longer and more comfortable working sessions. Starting is effortless thanks to the ElastoStart system and decompression valve, both designed to reduce pull resistance and ensure smooth ignition. These comfort-focused features make extended use easier and more efficient.

Precision Engineering for Professional Use

Every feature of the MS 400 C-M enhances performance and usability. The blade brake clutch allows users to stop the chain without shutting off the engine, saving time during maintenance or repositioning. The side-mounted chain tensioner enables quick and safe adjustments, while tool-free fuel caps allow for easy refilling. The fan-assisted cooling system maintains optimal operating temperature during heavy-duty cutting, ensuring consistent performance and extended lifespan.

Efficiency and Reduced Environmental Impact

The controlled-delivery oil pump and STIHL Ematic system significantly reduce oil consumption by up to 50%. These systems deliver precise lubrication to critical areas, minimising waste and lowering operating costs. Combined with the 2-MIX engine, they make the MS 400 C-M both powerful and environmentally responsible.

Reliable, Efficient, and Built to Last

The STIHL MS 400 C-M Petrol Chainsaw sets new standards in the 60cc class for power, balance, and efficiency. With its magnesium piston, M-Tronic 3.0 system, and HD2 filtration, it delivers consistent cutting performance, reduced maintenance, and exceptional durability. Designed for professional foresters and arborists, it offers unmatched power-to-weight efficiency, comfort, and reliability — making it the ultimate choice for precision cutting and long-term performance.