MS 651
General
High-performance saw for demanding applications in high-density stands. STIHL anti-vibration system, HD2 filter with an excellent filtering effect, controlled-delivery high-performance oil pump for conveying high quantities of oil; roller chain catcher as standard.
Versions
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MS 651, Bar length 50cm
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MS 651, Bar length 63cm
Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.
Technical specifications

Technical specifications
Technical specifications | Value |
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Displacement | 91,1 cm³ |
Power output | 5/6,8 kW/PS |
Weight 1) | 7,3 kg |
Power-to-weight ratio | 1,5 kg/kW |
Saw chain pitch | 3/8" |
Sound pressure level 2) | 107 dB(A) |
Sound power level 3) | 120 dB(A) |
Vibration level left/right 4) | 6,9/6,9 m/s² |
1) Without fuel, without bar and chain
2) K-factor according to DIR 2006/42/EC = 2.5 (dB (A))
3) K-factor according to DIR 2006/42/EC = 2.5 dB (A)
4) K-factor according to DIR 2006/42/EC = 2m / s ²
Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.
Accessories

Accessories
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Combination socket tool
For tensioning the chain and changing the chain, bar and spark plug. Width across flats: 19 (for MS 261 up), 19-13 (for MS 271, MS, 291, MS 311, MS 391), 19–16 (for MS 170, MS 171, MS 180, MS 181, MS 193 C, MS 211, MS 231, MS 241, MS 251), 16 and 13 ( for MS 150, MS 201, MS 201 T).
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Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.