Toro 520 Engine
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Note: the Toro model 520 is the same as the Wheel Horse 520-H. The following data is from the 520-H listing. |
| Engine Detail | |
| Onan P220G | |
| gasoline | |
| 2-cylinder | |
| air-cooled horizontal-shaft opposed-twin | |
| Displacement | 781 cc 47.7 ci |
| Bore/Stroke | 3.2580x2.875 inches 83 x 73 mm |
| Power (gross) | 20 hp 14.9 kW |
| Fuel system | carburetor |
| Compression | 7.0:1 |
| Idle RPM | 1400-3600 |
| Oil capacity | 1.7 qts 1.6 L |
| Sparkplug | Champion RS14YC |
| Sparkplug gap | 0.025 inches 0.635 mm |
| Page information | |
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| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on August 15, 2026 |