STIHL Petrol Chainsaw – MS 400 C-M

£990.00£1,020.00 ex VAT

Professional 4.0 kW chainsaw with magnesium piston technology.

SKU: MS 400 C-M Category:


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

The MS 400 C-M chainsaw has been designed with professionals in mind, offering STIHL’s 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 it’s own weighs 5.8 kg. In addition to the new 66.8 cc engine, the MS 400 C-M features STIHL’s latest M-Tronic 3.0 technology which has STIHL’s 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

Technical data Value
Displacement cm³ 66.8
Power output kW/bhp 4/5.4
Bar length cm 40-50
Bar length “ 16-20
Weight kg 1) 5.8
Weight kg 2) 6.88 / 6.97 / 7.07 / 7.11 / 7.13
Power-to-weight ratio kg/kW 1.4-1.45
Sound pressure level dB(A) 3) 107
Sound power level dB(A) 3) 118
Vibration values left/right m/s² 4) 3.5/3.5
STIHL Oilomatic saw chain pitch/type 3/8 “
Oil pump Adjustable oil filter,einstellbar
Tank volume l 0.60
Chain pitch 3/8″
Chain tensioning Lateral chain tension,seitliche Kettenspannung
Sprocket – number of teeth 7 Z
Filter Langzeit Filtersystem (Vorabscheidung) / Patronenfilter HD2,Long-term filter system (pre-separation) / cartridge filter HD2
Filter material PET fabric,PET-Gewebe
Bumper spike Stahlkralle,Steel claw
Cylinder Chrom,Chrome
Oil tank volume cm3 325
Sprocket Ring sprocket,Ringkettenrad
Anti vibration system Standard AV-System
Filler cap Tool-free filler cap,WTV werkzeugloser Tankverschluss
EPA Certified fuel consumption l/h 2.265
CO2 g/kWh 656
Handle type Standard grip,Standardgriff
Exhaust Standard muffler,Standardschalldämpfer
Carburettor Compensator / Limiter Caps / carburettor heater / STIHL M-Tronic,Kompensator / Spülvorlage / Vergaservorwärmung / STIHL M-Tronic
Speed at maximum power rpm 10.000
Additional features Ematic chain lubrication system,Ematic-Kettenschmiersystem
EPA Certified fuel consumption glh 0.598

1) Without fuel, without bar and chain
2) Without fuel, with bar and chain
3) K-factor according to DIR 2006/42/EC = 2.5 dB (A)
4) K-factor according to DIR 2006/42/EC = 2m / s ²

Additional information


16", 18", 20"


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