John Deere 420 Engine
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| Engine Detail | |
| Onan B48G | |
| gasoline | |
| 2-cylinder | |
| air-cooled horizontal-shaft opposed-twin | |
| The B48G was the original engine on the Deere 420, used through the 1986 model year. | |
| Displacement | 781 cc 47.7 ci |
| Bore/Stroke | 3.25x2.875 inches 83 x 73 mm |
| Power (gross) | 20 hp 14.9 kW |
| Air cleaner | foam and paper |
| Compression | 7.0:1 |
| Rated RPM | 3500 |
| Idle RPM | 1000-3450 |
| Starter volts | 12 |
| Engine Oil | |
| |
| Oil capacity | 1.75 qts 1.7 L |
| Engine Detail | |
| Onan P220G | |
| gasoline | |
| 2-cylinder | |
| air-cooled horizontal-shaft opposed-twin | |
| The P220G replaced the B48G in the John Deere 420 during the 1987 model year, starting at tractor serial number 420001. | |
| Displacement | 781 cc 47.7 ci |
| Bore/Stroke | 3.2580x2.875 inches 83 x 73 mm |
| Power | 20 hp 14.9 kW |
| Rated RPM | 3600 |
| Starter volts | 12 |
| Oil capacity | 1.75 qts 1.7 L |
| Sparkplug | NGK BPR5EFS |
| Champion RS14YC | |
| John Deere 420 Engine | |
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| Image courtesy of Terry Russell |
| Page information | |
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| Copyright 2024 TractorData.com® | |
| 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 September 21, 2023 |