Product Highlights
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-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.
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 Lightweight (12.8 lbs.)
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 Fuel and oil caps with retainers
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 Modern Design
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 Pre-Separation Air Filtration System
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 Magnesium Alloy Piston
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 Excellent power-to-weight ratio (12.8 lbs./5.4 bhp)
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 Adjustable Automatic Oiler
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 STIHL M-Tronic™
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 Decompression Valve
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 Side-Access Chain Tensioner
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 Ematic™ Lubrication System
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 STIHL Quickstop®
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 STIHL ElastoStart™
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 Anti-Vibration System
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 Winter/Summer Shutter
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 Master Control Lever™
 
Product Specifications
| POWER SOURCE | Gas | 
| POWERHEAD WEIGHT | 12.8 lbs. | 
| GUIDE BAR LENGTH (Recommended) | 20 in. | 
| OILOMATIC® CHAIN | 3/8" RS3 | 
| CHAIN OIL CAPACITY | 11 oz. | 
| ENGINE POWER | 5.4 bhp | 
| FUEL CAPACITY | 20.3 oz. | 
| DISPLACEMENT | 4.1 cu. in. | 
Note: STIHL recommends 3624 005 0072 (33 RS3 72) OILOMATIC® Saw Chain and 20” 3003 008 8921 Ematic™ guide bar combination. Compatible guide bar ranges: 16" to 25"