| Engine options | |
| John Deere 1.1L 2-cyl gasoline | |
| Hercules 0.9L 2-cyl gasoline | |
| Hercules 1.1L 2-cyl gasoline |
| Engine Detail | |
| John Deere | |
| gasoline | |
| 2-cylinder | |
| liquid-cooled | |
| Final engine. Used from serial number 640000 through the end of production | |
| Displacement | 66.4 ci 1.1 L |
| Bore/Stroke | 3.25x4.00 inches 83 x 102 mm |
| Rated RPM | 1550 |
| Firing order | 1-2 |
| Coolant capacity | 10 qts 9.5 L |
| Engine Detail | |
| Hercules NXA | |
| gasoline | |
| 2-cylinder | |
| liquid-cooled | |
| Original engine, used until 1938, SN 622580 | |
| Displacement | 56.5 ci 0.9 L |
| Bore/Stroke | 3.00x4.00 inches 76 x 102 mm |
| Firing order | 1-2 |
| Engine Detail | |
| Hercules NXB | |
| gasoline | |
| 2-cylinder | |
| liquid-cooled | |
| Second engine, used until 1941, SN 634840 | |
| Displacement | 66.4 ci 1.1 L |
| Bore/Stroke | 3.25x4.00 inches 83 x 102 mm |
| Air cleaner | oil bath |
| Rated RPM | 1550 |
| Page information | |
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| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on July 12, 2023 |