Tractors > John Deere > A

John Deere A Engine



John Deere A tractor photo
1934 - 1952
Model year
Two-Cylinder Letter Series
Row-Crop tractor
Series map:
B
A
17.8hp*
26.7hp*
*Estimated engine power for comparison only.
Engine options
John Deere 5.1L 2-cyl all fuel
John Deere 5.3L 2-cyl all fuel
John Deere 5.3L 2-cyl gasoline
Engine Detail
John Deere
all fuel
2-cylinder 4-valve
liquid-cooled horizontal
Original engine, used until 1940.
Displacement309 ci
5.1 L
Bore/Stroke5.50x6.50 inches
140 x 165 mm
Air cleaneroil bath
Compression4.45:1
Rated RPM975
Firing order1-2
Starter typemanual
Oil capacity9.25 qts
8.8 L
Coolant capacity38 qts
36.0 L
Sparkplug gap.030 inches
0.762 mm
Point gap0.021 inches
0.533 mm
Intake valve clearance0.020 inches
0.508 mm
Exhaust valve clearance0.020 inches
0.508 mm
Engine Detail
John Deere
all fuel
2-cylinder
liquid-cooled
Displacement321 ci
5.3 L
Bore/Stroke5.50x6.75 inches
140 x 171 mm
Compression4.45:1
Rated RPM975
Firing order1-2
Startermanual
 electric OptOptional
Starter volts6
Oil capacity11 qts
10.4 L
Sparkplug gap0.030 inches
0.762 mm
Point gap0.021 inches
0.533 mm
Intake valve clearance0.020 inches
0.508 mm
Exhaust valve clearance0.020 inches
0.508 mm
Engine Detail
John Deere
gasoline
2-cylinder
liquid-cooled
Displacement321 ci
5.3 L
Bore/Stroke5.50x6.75 inches
140 x 171 mm
Compression5.60:1
Rated RPM975
Firing order1-2
Startermanual
 electric OptOptional
Starter volts6
Oil capacity11 qts
10.4 L
Sparkplug gap0.030 inches
0.762 mm
Point gap0.021 inches
0.533 mm
Intake valve clearance0.020 inches
0.508 mm
Exhaust valve clearance0.020 inches
0.508 mm
Page information
Peter Easterlund - owner of TractorData.com
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Peter Easterlund - owner/author
Email: Peter@TractorData.com
Updated on July 20, 2023
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