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Comparison
2 models side by side, spec by spec.
Key differences: Stihl MS 261 C-M has a larger engine; Echo CS-501P is lighter.
Independent reference database. Specs are compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.
Highlights mark the leading value in each comparable spec:
larger / higher,
lighter / lower.
For weight and power-to-weight, lower is better.
| Spec | Stihl MS 261 C-M | Echo CS-501P |
|---|---|---|
| Engine | ||
| Displacement | 3.1 cu in (50.8 cc) larger engine | 3.06 cu in (50.2 cc) |
| Engine Power | 4.1 hp | — |
| Fuel Capacity | — | 0.13 gal (0.49 L) |
| Power | 3 kW | — |
| Power-to-Weight | 1.6 kg/kW | — |
| Bar & Chain | ||
| Chain Gauge | 50 " | — |
| Chain Pitch | .325" | — |
| Guide Bar Length | 15.98 in (406 mm) | 15.98 in (406 mm) |
| Oil Capacity | — | 9.5 fl oz (280.95 mL) |
| Dimensions & Weight | ||
| Length | 17.64 in (448 mm) | — |
| System Weight | 12.81 lb (5.81 kg) | — |
| Weight | 10.89 lb (4.94 kg) | 10.6 lb (4.81 kg) lighter |
| General | ||
| Power Source | gas | gas |
| Warranty | — | 5 yr |