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 emission, 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. Note: Not available for purchase in California. Specifications 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) 1)without guide bar and saw chain2)with guide bar and saw chain3)The actual cutting length is shorter than the specified bar length
