Stihl MS 251 vs Husqvarna 450 II Chainsaw Comparisons
Specs that are different are highlighted in red. Specs that are better are written in bold. Notice that a chainsaw with a significantly larger number of bolded specifications is not necessarily a better chainsaw.
Chainsaw Details
Subjects of comparisons - brand and model.
| Manufacturer | Stihl | Husqvarna |
| Model | MS 251 | 450 II |
| Photo |  |
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| Class | Homeowner | Homeowner |
| Warranty homeowner | 365 days 1 year |
730 days 2 year |
| Warranty commercial | 90 days 0.25 year |
90 days 0.25 year |
| Your rating |
Engine Specs Comparison
Power, displacement and type of fuel of the chainsaws.
| Fuel type | Gas | Gas |
| Fuel oil ratio | 50:1 | 50:1 |
| Weight | ~4.8 kg ~10.58 lbs |
~5 kg ~11.02 lbs |
| Engine | Stihl 2-Mix | X-Torq |
| Power | 3 hp 2.24 kW |
3.2 hp 2.39 kW |
| Displacement | 45.6 cm³ 2.78 in³ |
50.2 cm³ 3.06 in³ |
| Torque | Nm | 2.6 Nm |
| Idle speed | 2800 RPM | 2700 RPM |
| Max speed | 13000 RPM | 9000 RPM |
| Spark plug | NGK CMR6H, Bosch USR4A | NGK BPMR7A, Champion RCJ7Y |
| Spark plug gap | 0.5 mm 0.02 in |
0.5 mm 0.02 in |
Chain and Bar Comparison
Detailed chain and bar specifications side by side.
| Bar length | 40.64 cm 16 in |
45.72 cm 18 in |
| Min bar length | 35.56 cm 14 in |
50.8 cm 20 in |
| Max bar length | 45.72 cm 18 in |
33 cm 13 in |
| Chain | Rapid Micro 3 (RM3) | SP33G |
| Pitch | 3/8" P | .325" |
| Gauge | 1.3 mm 0.05 in |
1.3 mm 0.05 in |
| Sprocket | Spur 7 Tooth | Spur 7 Teeth |
Other specs
Fuel consumption, noise and liquid capacities.
| Fuel consumption | 1.075 l/hr 0.28 gal/hr |
0.30 l/hr 0.08 gal/hr |
| Fuel capacity | 0.39 l 13.19 fl oz |
0.45 l 15.22 fl oz |
| Oil tank capacity | 0.2 l 6.76 fl oz |
0.26 l 8.79 fl oz |
| Noise (ear level) | 103 dB(A) | 104 dB(A) |
| Vibration front | 3.9 m/s² 12.8 ft/s² |
3.1 m/s² 10.17 ft/s² |
| Vibration rear | 3.9 m/s² 12.8 ft/s² |
4.9 m/s² 16.08 ft/s² |
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