Wheel Horse 312-A Engine
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| Engine options | |
| 12HP Kohler 390cc 1-cyl gasoline | |
| 12HP Kohler 476cc 1-cyl gasoline |
| Engine Detail | |
| Kohler K301S | |
| gasoline | |
| 1-cylinder | |
| air-cooled | |
| Original engine. The K301 was used on the Wheel Horse 312-A during the 1986 model year. | |
| Displacement | 390 cc 23.85 ci |
| Bore/Stroke | 3.25x2.875 inches 83 x 73 mm |
| Power | 12 hp 8.9 kW |
| Starter | electric |
| Starter volts | 12 |
| Engine Detail | |
| Kohler M12 | |
| gasoline | |
| 1-cylinder | |
| air-cooled | |
| The Kohler M12S replaced the K301 on the Wheel Horse 312-A starting with the 1987 model year, tractor model code 21-12KE03. | |
| Displacement | 476 cc 29.1 ci |
| Bore/Stroke | 3.38x3.25 inches 86 x 83 mm |
| Power (gross) | 12 hp 8.9 kW |
| Compression | 6.6:1 |
| Rated RPM | 3600 |
| Sparkplug | Champion RH10 |
| Sparkplug gap | 0.025 inches 0.635 mm |
| Engine Oil | |
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| Oil capacity | 2.5 qts 2.4 L |
| Page information | |
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| TractorData is a family-owned small business located in Minnesota that has been providing reference information on tractors since 1999. | |
| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on February 3, 2020 |