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Years in Production / 1939–1946
Massey-Harris
101 Junior
Explore the specifications, hardware, and original references for the Massey-Harris 101 Junior.
29hp
Engine estimate · from PTO
2WD Only
Drive
1939–1946
Production years
Massey-Harris
Manufacturer
101 Junior / 01
At a glance
Production
Row-Crop tractor
Built in Racine, Wisconsin, USA
Massey Harris model 101 Junior gasoline tractors that were destined for the export market were marked as a "102G".
- Manufacturer
- Massey-Harris
Pto
- Rear Type
- 540 (1.375)
Belt Pulley
- Diameter
- 13 inches33 cm
- Width
- 6 inches15 cm
- Rpm
- 837
- Speed
- 2958 ft/min901.60 meters/min
Mechanical
Two-wheel drive
Manual steering
Open operator station.
101 Junior / 02
Under the hood
Engine Detail (Option 1)
Continental
gasoline
4-cylinder
liquid-cooled vertical L-head
Original engine, used until 1940.
- Displacement
- 123.7 ci2.0 L
- Bore Stroke
- 3.00x4.375 inches76 x 111 mm
- Air Cleaner
- oil bath
- Compression Ratio
- 6.7:1
- Rated Rpm
- 1500
- Starter Volts
- 6
- Coolant Capacity
- 11 qts10.4 L
- Fuel Type
- gasoline
- Cylinders
- 4
- Cooling
- liquid-cooled vertical L-head
Engine Detail (Option 2)
Continental MFA
gasoline
4-cylinder
liquid-cooled vertical L-head
Larger engine, used from 1940 to 1943.
- Displacement
- 139.6 ci2.3 L
- Bore Stroke
- 3.1875x4.375 inches81 x 111 mm
- Air Cleaner
- oil bath
- Rated Rpm
- 1800
- Starter Volts
- 6
- Fuel Type
- gasoline
- Cylinders
- 4
- Cooling
- liquid-cooled vertical L-head
Engine Detail (Option 3)
Continental
gasoline
4-cylinder
liquid-cooled vertical L-head
Final engine, used from 1943 to 1946.
- Displacement
- 162 ci2.7 L
- Bore Stroke
- 3.4375x4.375 inches87 x 111 mm
- Fuel Type
- gasoline
- Cylinders
- 4
- Cooling
- liquid-cooled vertical L-head
Engine Options
Continental 2.0L 4-cyl gasoline
Continental 2.3L 4-cyl gasoline
Continental 2.7L 4-cyl gasoline
- Fuel Tank
- 10 gal37.9 L
101 Junior / 03
Gears & controls
Transmission
- Transmission Type
- gear
- Gears
- 4 forward and 1 reverse
101 Junior / 04
Size. Stance. Footprint.
Dimensions And Tires
- Wheelbase
- 83.5 inches (row-crop)212 cm
- Wheelbase
- 78 inches (standard)198 cm
- Weight
- 3400 lbs1542 kg
- Front Tire
- 5.00-15
- Rear Tire
- 10.00-36
Tires And Tracks
- Front Ag
- 5.00-15
- Front Ag
- 4.75-15
- Rear Ag
- 10.00-36
101 Junior / 05
Tractor Photos
101 Junior / 06
Tests (NTTL)
Nebraska Tractor Test 318
124 gasoline 4-speed 2WDMay 22 - 26, 1939
Drawbar performance
Gear 3 used for power test.
Gear 1 used for pull test.
- Id
- 318
- Belt Power Max
- 26.27 hp19.6 kW
- Belt Fuel Use Max
- 2.4 gal/hour9.1 l/hour
- Max Power
- 20.47 hp15.3 kW
- Max Pull
- 3,079 lbs1396 kg
Nebraska Tractor Test
140 gasoline 4-speed 2WDOctober 7 - 12, 1940
Drawbar performance
Gear 3 used for power test.
Gear 1 used for pull test.
- Belt Power Max
- 30.56 hp22.8 kW
- Belt Fuel Use Max
- 2.6 gal/hour9.8 l/hour
- Max Power
- 24.65 hp18.4 kW
- Max Pull
- 3,278 lbs1486 kg