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STIHL MS 391 Petrol Chainsaw
For heavy agricultural use
Bar length 45 cm / 18" or 50 cm / 20"
MS 391
Easy-to-manage, high-torque chainsaw for improved performance and user comfort when harvesting wood or sawing firewood. High torque over a wide range of speeds. Up to 20% less fuel consumption and up to 50% lower emissions compared with the previous model without 2-MIX technology.
Instruction is necessary to recognize or assess the dangers of a chainsaw. Please wear protective clothing and equipment.
If anything is unclear, we recommend to order the chainsaw via Click & Collect and pickup up the chainsaw from a STIHL servicing dealer.
Exterior design of STIHL guide bars are subject to change. Technical specifications remain the same.
Powerful all-purpose petrol chainsaw for firewood and timber construction
Practical decompression valve for efficient starting
For work in agriculture, construction, and horticulture
Long service intervals due to the long-life air filter system
Features
REDUCED-EMISSION ENGINE TECHNOLOGY
ADVANCED COMBUSTION TECHNOLOGY
VARIABLE-DISPLACEMENT OIL PUMP
SINGLE-LEVER MASTER CONTROL
EMATIC CHAIN LUBRICATION SYSTEM
TOOL FREE FILLER CAPS
Technical details
| Bar length |
45-50 cm |
| Bar length |
18-20 in |
| Displacement |
64.1 cm3 |
| Capacity |
3.91 cu-in |
| Rollomatic E, cutting length |
40 cm |
| Tank volume |
0.60 l |
| STIHL Oilomatic saw chain pitch/type |
3/8" RM |
| Speed at maximum power |
9500 rpm |
| Bumper spike |
Steel claw |
| Power output |
3.2/4.5 kW/bhp |
| Cylinder |
Chrome |
| Filter material |
Non-woven fabric |
| Oil pump |
Adjustable |
| Additional features |
Ematic chain lubrication system |
| Filter |
Cartridge filter |
| Sprocket |
Profile sprocket |
| Weight |
6.2 kg 1) |
| Chain tensioning |
Lateral chain tensioning |
| Anti vibration system |
Standard AV-System |
| Handle type |
Standard grip |
| Exhaust |
Standard silencer |
| Filler cap |
WTV tool-free tank cap |
| Chain pitch |
3/8" |
| Carburettor |
Flush template / carburettor heating / compensator / limiter caps |
| EPA Certified fuel consumption |
0.47 glh |
| EPA Certified fuel consumption |
1.779 l/h |
| Power-to-weight ratio |
1.9 kg/kW |
| Oil tank volume |
350 cm3 |
| Weight |
7.33 / 7.45 kg 2) |
| Sound pressure level |
105 dB(A) 3) |
| Sound power level |
117 dB(A) 3) |
| Vibration values left/right |
4/4 m/s2 4) |
| STIHL Oilomatic saw chain pitch/type |
3/8" |
| CO² |
755 g/kWh |
