MS 400



Thanks to the magnesium piston developed in-house by STIHL, the innovative STIHL MS 400 C-M petrol chainsaw offers a range of advantages for forestry professionals. Thanks to the reduced weight of the piston and the lightweight overall construction, this chainsaw has a power-to-weight ratio of 1.45 kg/kW.

But when it comes to felling, delimbing and processing wood in medium-density forests, we know it is not just power that is important. That’s why the advanced version of the STIHL MS 400 C-M chainsaw is equipped with STIHL M-Tronic to enable you to work efficiently. This version also allows for calibration of the system. STIHL ElastoStart supports you when you start your chainsaw, making start-up particularly easy, while the STIHL anti-vibration systemreduces vibrations to protect your muscles and joints,. The STIHL MS 400 C-M petrol chainsaw features a long-life air filter system to ensure uninterrupted operation for as long as possible. This consists of a routing pre-separator and an HD2 filter.

  • For professionals in forestry
  • World’s first STIHL chainsaw with magnesium piston
  • Outstanding power-to-weight ratio of 1.45 kg/kW


Bar length 50 cm 
Bar length 20 in 
Displacement 66.8 cm³ 
Displacement 4.08 cu-in 
Engine power 4 kW 
Engine power 5.4 bhp 
Weight 5.8 kg 1)
Power-to-weight ratio 1.45 kg/kW 
System Weight 7.28 kg 2)
Sound pressure level 107 dB(A) 3)
Sound power level 118 dB(A) 3)
Saw chain pitch 3/8 "


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