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Comparison
2 models side by side, spec by spec.
Independent reference database. Specs are compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.
Best suited for
Each model's factual fit, from its duty class and key specs — no winner declared.
- Echo CS-4010 Homeowner occasional cutting: limbing, small trees, and light firewood around the property (42 cc · 18-in bar)
- Stihl MS 251 WOOD BOSS Farm & ranch occasional firewood, limbing, fence-line clearing, and storm cleanup (46 cc · 18-in bar)
Specs verified against the manufacturer spec sheet on — echo-usa.com.
Specs verified against the manufacturer spec sheet on — stihlusa.com.
| Spec | Echo CS-4010 | Stihl MS 251 WOOD BOSS |
|---|---|---|
| Engine | ||
| Displacement | 2.54 cu in (41.6 cc) | 2.8 cu in (45.9 cc) |
| Engine Power | — | 3 hp |
| Fuel Capacity | 0.09 gal (0.35 L) | 0.1 gal (0.39 L) |
| Power | — | 2.2 kW |
| Power-to-Weight | — | 2.2 kg/kW |
| Bar & Chain | ||
| Chain Gauge | — | 0.050 in |
| Chain Pitch | — | .325" |
| Guide Bar Length | 17.99 in (457 mm) | 17.99 in (457 mm) |
| Oil Capacity | 7.8 fl oz (230.67 mL) | 6.76 fl oz (200 mL) |
| Oiler | Automatic | — |
| Dimensions & Weight | ||
| Length | — | 16.69 in (424 mm) |
| System Weight | — | 12.59 lb (5.71 kg) |
| Weight | 9.39 lb (4.26 kg) | 10.6 lb (4.81 kg) |
| General | ||
| Anti-Vibration | Yes | — |
| Power Source | gas | gas |
| Warranty | 5 yr | — |