STIHL MS 400 C-M Forestry Chainsaw Magnesium Piston

The new MS 400 C-M is the worlds first chainsaw with a magnesium piston.

The MS 400 C-M chainsaw has been designed with professionals in mind, offering STIHLs highest performance in the 60cc class. More displacement, more power, more torque, only a small weight increase compared to the MS 362 C-M and an outstanding power to weight ratio.

The new 2-MIX engine provides 4kW of power,compared to 3.5kW in the MS 362 C-M, as well as more torque 4.1 Nm vs 3.5 Nm. These increases come from larger 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, helping ensure rapid acceleration.

Thanks to these intelligent design features, the MS 400 C-M has an impressive power-to-weight ratio of 1.45 kilograms per kilowatt, making it ideal to use when working in the forest, especially over prolonged periods. The powerhead on its own weighs 5.8 kg. In addition to the new 66.8 cc engine, the MS 400 C-M features STIHLs latest M-Tronic 3.0 technology which has STIHLs simple re-calibration procedure and an improved HD2 filter, which all help deliver optimum performance from the saw at all times.

The chainsaw also features Elastostart technology that enables effortless starting of the tool. Designed for forestry and arb professionals, the MS 400 C-M can be used for a range of applications, including felling, de-limbing and cutting timber down to size.

Technical data Value
Displacement cm 66.8
Power output kW/bhp 4/5.4
Weight kg 1) 5.8
System weight kg 2) 6.88 / 7.07 / 7.11
Power-to-weight ratio kg/kW 1.4-1.4
Sound pressure level dB(A) 3) 107
Sound power level dB(A) 3) 118
Vibration values left/right m/s 4) 3.5/3.5
Oil pump Adjustable oil filter
Tank volume l 0.60
Chain pitch 3/8″
Chain tensioning Lateral chain tension
Sprocket – number of teeth 7 Z
Filter Long-term filter system (pre-separation) / cartridge filter HD2
Bumper spike Steel claw
Cylinder Chrome
Oil tank volume cm3 325
Sprocket Ring sprocket
Anti vibration system Standard AV-System
Filler cap Tool-free filler cap
EPA Certified fuel consumption l/h 2.265
CO2 g/kWh 656
Handle type Standard grip
Speed at maximum power Um 10.000
EPA Certified fuel consumption glh 0.598