Massey-Harris GP 15/22

Production: 1930 - 1936  

Production
Manufacturer:	Massey-Harris
Type:	Four-wheel Drive (4WD) tractor
Factory:	Racine, Wisconsin, USA
Total built:	3,000
Original price:	$1,000
The Massey-Harris 15/22 GP General Purpose tractor was the first Massey-Harris designed tractor.

Massey-Harris GP Power
Drawbar (claimed):	15 hp 11.2 kW
Belt (claimed):	22 hp 16.4 kW
Plows:	2 (14-inch)
Drawbar (tested):	19.91 hp 14.8 kW
Belt (tested):	24.84 hp 18.5 kW

Mechanical
Chassis:	4x4 4WD
Cab:	Open operator station.
Transmission:	3-speed gear

GP Serial Numbers
Location:	Left-rear of tractor frame.
1930:	300001
1936:	303001

Engine Detail
Hercules OOC
gasoline
4-cylinder
liquid-cooled vertical L-head
Displacement:	226 ci 3.7 L
Bore/Stroke:	4.00x4.50 inches 102 x 114 mm
Air cleaner:	oil bath
Rated RPM:	1200
Coolant capacity:	16 qts 15.1 L

Transmission
Type:	gear
Gears:	3 forward and 1 reverse

Dimensions
Length:	119 inches 302 cm
Height:	55 inches 139 cm
Weight:	3,900 lbs 1769 kg
Ground clearance:	30 inches 76 cm
Front tread:	40 to inches 101 to 0 cm
Front tread:	60 to inches 152 to 0 cm
Front tread:	66 to inches 167 to 0 cm
Front tread:	76 to inches 193 to 0 cm
Rear tread:	40 to inches 101 to 0 cm
Rear tread:	60 to inches 152 to 0 cm
Rear tread:	66 to inches 167 to 0 cm
Rear tread:	76 to inches 193 to 0 cm