gravely lawn tractors 818

1978
800 Series
Garden tractor

Engine Detail
Onan B48M
gasoline
2-cylinder
air-cooled horizontal-shaft opposed-twin
Displacement	781 cc 47.7 ci
Bore/Stroke	3.25x2.875 inches 83 x 73 mm
Power (gross)	18 hp 13.4 kW
Starter	electric
Starter volts	12

Engine Oil

Oil capacity	2.25 qts 2.1 L