This Is The World’s First Powerful Professional Chainsaw With a Lightweight Magnesium Piston.
Designed for the most demanding tree care and forestry professionals, the STIHL MS 400 C-M is built with STIHL M-Tronic™ engine technology to deliver low exhaust emissions, fuel-efficient performance, even under changing conditions. Unlike its aluminum piston-equipped counterparts, the advanced magnesium piston in the MS 400 C-M provides greater displacement, power, and torque without additional weight. A long-life HD2 air filter means you simply clean it instead of replacing it, while a pre-separation system removes large debris before it even gets to the air filter, increasing run time between cleanings.

Technical details
| Displacement | 4.1 cu-in |
| Power | 4 kW |
| Engine power | 5.40 HP |
| Device weight without refuelling | 12.7 lb 1) |
| System weight without refuelling | 7.12 / 7.79 / 6.99 / 7.20 / 7.36 / 7.00 / 7.78 / 7.32 / 7.77 / 7.30 kg 2) |
| Power-to-weight ratio | 1.45 kg/kW |
| Bar length | 20 / 25 / 16 / 18 ” 3) |
| Groove width | 50 “ |
| Saw chain pitch | 3/8″ |
| Device length with bumper spike | 461 mm 1) |
General Power Tool: Improper use of any power tool may cause serious or fatal injury. Read, understand, and follow the operating and safety instructions in your instruction manual carefully before using such products. STIHL products sold through U.S. STIHL Dealers are for distribution in the United States only. Improper use of any power tool may cause serious or fatal injury. Read, understand, and follow the operating and safety instructions in your instruction manual before using such products. STIHL products sold through U.S. STIHL Dealers are for distribution in the United States only.
Proposition 65 – English: This product contains chemicals known to the State of California to cause cancer and reproductive harm. www.P65Warnings.ca.gov
E-10 StatementNote: STIHL recommends the use of fuel with no more than 10% Ethanol content. Using fuel with greater than 10% Ethanol content may cause damage to your equipment and may void your STIHL warranty.













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