Ingersoll 4020 Engine


Ingersoll 4020 lawn tractor photo
1989 - 2004
4000 Series
Garden tractor
Series map:
4018
4020
18.0hp
20.0hp
Engine Detail
Onan P220G
gasoline
2-cylinder
air-cooled horizontal-shaft horizontally-opposed
Displacement781 cc
47.7 ci
Bore/Stroke3.25x2.875 inches
83 x 73 mm
Power (gross)20 hp
14.9 kW
Compression7:1
Starterelectric
Starter volts12
SparkplugChampion RS14YC
Sparkplug gap0.025 inches
0.635 mm
Intake valve clearance0.005 inches*Cold
0.127 mm
Exhaust valve clearance0.013 inches*Cold
0.330 mm
Page information
Peter Easterlund - owner of TractorData.com
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Peter Easterlund - owner/author
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Updated on August 7, 2020
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