john deere 4020
 | 1963 - 1972
New Generation SeriesRow-Crop tractor | 1963 - 1972 | New Generation Series | Row-Crop tractor |
|---|---|---|---|---|
1963 - 1972 | ||||
New Generation Series | ||||
Row-Crop tractor | ||||
1963 - 1972 | |
|---|---|
New Generation Series | |
Row-Crop tractor |
Engine options | |
|---|---|
John Deere 6.6L 6-cyl diesel | |
John Deere 5.6L 6-cyl gasoline | |
John Deere 5.9L 6-cyl gasoline | |
John Deere 5.9L 6-cyl LP gas |
Engine Detail | |
|---|---|
John Deere | |
diesel | |
6-cylinder 12-valve | |
liquid-cooled inline | |
Oil capacity on most 4020 diesels increased from 8 to 12 quarts starting with the 1969 model year, tractor serial number 201,000. High-crop diesel tractors retained the 8-quart capacity throughout the production run. Tractors fitted with after-market turbochargers, and early tractors with replacement oil pans, may also have the higher oil capacity. | |
Displacement | 404 ci
6.6 L |
Bore/Stroke | 4.25x4.75 inches
108 x 121 mm |
Compression | 16.5:1 |
Rated RPM | 2200 |
Idle RPM | 600-2500 |
Operating RPM | 1500-2200 |
Firing order | 1-5-3-6-2-4 |
Starter volts | 24 |
Coolant capacity | 24 qts
22.7 L |
Intake valve clearance | 0.018 inches
0.457 mm |
Exhaust valve clearance | 0.018 inches
0.457 mm |
Engine Oil | |
|---|---|
 | |
Early Oil capacity | 8 qts
7.6 L |
Late Oil capacity | 12 qts
11.4 L |
Engine Detail | |
|---|---|
John Deere | |
gasoline | |
6-cylinder 12-valve | |
liquid-cooled inline | |
Original gasoline and LP-gas engine, used through the 1965 model year. | |
Displacement | 340 ci
5.6 L |
Bore/Stroke | 4.25x4.00 inches
108 x 102 mm |
Compression | 7.5:1 |
Rated RPM | 2200 |
Idle RPM | 650-2500 |
Operating RPM | 1500-2200 |
Firing order | 1-5-3-6-2-4 |
Starter volts | 12 |
Coolant capacity | 24 qts
22.7 L |
Sparkplug gap | 0.025 inches
0.635 mm |
Point gap | 0.016 inches
0.406 mm |
Intake valve clearance | 0.015 inches
0.381 mm |
Exhaust valve clearance | 0.028 inches
0.711 mm |
Engine Oil | |
|---|---|
 | |
Oil capacity | 9 qts
8.5 L |
Engine Detail | |
|---|---|
John Deere | |
gasoline | |
6-cylinder 12-valve | |
liquid-cooled inline | |
The larger, 362 ci engine became available in 1966, replacing 340 ci engine. | |
Displacement | 362 ci
5.9 L |
Bore/Stroke | 4.25x4.25 inches
108 x 108 mm |
Compression | 7.5:1 |
Rated RPM | 2200 |
Firing order | 1-5-3-6-2-4 |
Starter volts | 12 |
Oil capacity | 8 qts
7.6 L |
Coolant capacity | 24 qts
22.7 L |
Engine Detail | |
|---|---|
John Deere | |
LP gas | |
6-cylinder 12-valve | |
liquid-cooled inline | |
Displacement | 362 ci
5.9 L |
Bore/Stroke | 4.25x4.25 inches
108 x 108 mm |
Compression | 9.0:1 |
Rated RPM | 2200 |
Firing order | 1-5-3-6-2-4 |
Starter volts | 12 |
Oil capacity | 8 qts
7.6 L |
Coolant capacity | 24 qts
22.7 L |
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