John Deere 4020 Engine


John Deere 4020 tractor photo
1963 - 1972
New Generation Series
Row-Crop tractor
4010
Series:400040204320
4230
Engines overview
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
4020 diesel engine oil chart
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
4020 gasoline engine oil chart
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
Page information
Last update:November 19, 2020
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