Gravely Pro Master 20-H Engine


Gravely Pro Master 20-H lawn tractor photo
1989 - 1991
Front-mount mower
Series map:
Pro Master 18-H
Pro Master 20-H
Pro Master 30-H
18.0hp
20.0hp
30.0hp
Engines overview
20HP Kohler 770cc 2-cyl gasoline
20HP Onan 781cc 2-cyl gasoline
Engine Detail
Kohler M20
gasoline
2-cylinder
air-cooled horizontal-shaft horizontally-opposed
Displacement770 cc
46.98 ci
Bore/Stroke3.12x3.06 inches
79 x 78 mm
Power (gross)20 hp
14.9 kW
Starterelectric
Starter volts12
Oil capacity2 qts
1.9 L
Engine Detail
Onan
gasoline
2-cylinder
air-cooled
Displacement781 cc
47.7 ci
Bore/Stroke3.258x2.875 inches
83 x 73 mm
Power20 hp
14.9 kW
Page information
Peter Easterlund - owner of TractorData.com
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Peter Easterlund - owner/author
Email: Peter@TractorData.com
Updated on July 27, 2021
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