STIHL MS 400 C-M 50cm Hexa Chainsaw (1140 200 0786)

STIHL MS 400 C-M 50cm Hexa Chainsaw (1140 200 0786) combines a 66.8cc, 4kW petrol engine with a lightweight magnesium piston, M-Tronic engine management and a 50cm (20-inch) Rollomatic ES Light guide bar. Its Rapid Hexa full chisel chain is designed for demanding timber cutting, including felling, delimbing and cutting logs to length.

Key Features

• Magnesium piston: lightweight construction helps deliver a strong power-to-weight balance.
• M-Tronic: electronic engine management adjusts ignition timing and fuel metering for temperature, altitude and fuel quality.
• STIHL 2-MIX engine: delivers 4kW of cutting power from 66.8cc.
• 50cm ES Light bar and Hexa chain: a cutting setup for forestry and timber work.
• ElastoStart and manual decompression: help reduce starter-cord effort.
• Anti-vibration system: reduces engine vibration transmitted to the handles.

Maintenance and Everyday Use

• HD2 air filter and pre-separation routing help keep dust away from the engine.
• Side-mounted chain tensioning makes chain adjustment straightforward.
• Captive sprocket-cover nuts help prevent lost fasteners during chain changes.
• Tool-free bayonet caps make the fuel and chain-oil tanks easy to open and close.
• Controlled-delivery oil pump allows chain-oil delivery to be adjusted to suit the cutting setup.
• STIHL Ematic system directs oil to the bar and chain where lubrication is needed.
• Combi lever with stop function simplifies warm restarting.

For a day of cutting logs and processing timber, the light bar and responsive engine management help keep the saw manageable between cuts. Keep a correctly matched spare chain on hand for sharpening breaks.

Specifications

• Model: MS 400 C-M.
• Part number: 1140 200 0786.
• SKU: 11402000786.
• Power source: petrol.
• Engine: STIHL 2-MIX with magnesium piston.
• Engine management: M-Tronic.
• Displacement: 66.8cc.
• Power output: 4kW.
• Guide bar: 50cm / 20-inch Rollomatic ES Light.
• Chain: Rapid Hexa 36RH full chisel.
• Chain pitch: 3/8 inch.
• Drive link gauge: 1.6mm / .063 inch.
• Drive links: 72.
• Sound pressure level: 107dB(A).
• Sound power level: 118dB(A).

Replacement Chain and Guide Bar

• Replacement chain loop: STIHL 3132 000 0072, Rapid Hexa 36RH, 72 drive links.
• Replacement guide bar: STIHL 3003 000 2021, 50cm Rollomatic ES Light, 3/8-inch pitch and .063-inch gauge.

Check pitch, gauge and drive link count before ordering replacement chain. Use the matching STIHL Hexa file to sharpen the Hexa chain.

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