STIHL MS 400 C-M Professional M-Tronic Petrol 50cm/20″ Chainsaw (1140-200-0475)



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The new MS 400 C-M is another tool that pushes the boundaries of chainsaw technology – it’s the world’s first chainsaw with a magnesium piston, an award-winning innovation in small engine performance with an outstanding power to weight ratio. This magnesium piston allows for increased displacement with a lower weight piston, unlocking higher levels of performance when it comes to power, torque, maximum speed and handling. Perfect for felling, de-limbing and cross cutting, the MS 400 C-M brings unparalleled power and performance that is sure to impress.


  • STIHL’s highest performance and highest max rpm (14,000 rpm) in the 60cc chainsaw category
  • Large diameter piston and a displacement of 66.8cc, which is a 14% increase compared to the MS 362 C-M
  • The magnesium piston is also 14% lighter than the aluminum piston in the MS 362 C-M, which means rapid acceleration for the user! It’s also very durable
  • Impressive power-to-weight ratio of 1.45 kilograms per kilowatt
  • Latest M-Tronic 3.0 electronic engine management system with the new and simple re-calibration process
  • Elastostart technology, which, in combination with a manual fuel pump and/or a decompression valve, the result is virtually jerk-free, effortless starting
  • Comes standard with a 50cm/20” rollomatic ES light bar as standard


  • Displacement (cc): 66.8
  • Maximum RPM: 14,000
  • Power Output (kW/hp): 4/5.4
  • Power-to-Weight Ratio (kg/W): 1.4
  • Torque Output (Nm): 4.1
  • Sound Pressure Level (dB(A)): 107
  • Sound Power Lever (dB(A)): 118
  • Weight (kg): 5.8