Massey-Harris 101 Junior tractor specifications

1939 - 1946

1939 - 1946 Row-Crop tractor

Series:

Series:101 Junior30 ↓

1946 - 1952

Row-Crop tractor

Production

Production
Manufacturer:	Massey-Harris
Type:	Row-Crop tractor
Factory:	Racine, Wisconsin, USA
Total built:	32,418
Original price:	$2,065 (1952 )

Variants

Variants
30 RC:	row-crop
30 STD:	standard tread

Massey-Harris 30 Power

Massey-Harris 30 Power
Drawbar (claimed):	21 hp 15.7 kW
PTO (claimed):	33 hp 24.6 kW
Plows:	2-3
Drawbar (tested):	26.24 hp 19.6 kW
Belt (tested):	34.18 hp 25.5 kW
power test details ...

Massey-Harris 30 Engine

Massey-Harris 30 Engine
Continential 2.7L 4-cyl gasoline
Fuel tank:	20 gal 75.7 L
Engine details ...

Mechanical

Mechanical
Chassis:	4x2 2WD
Steering:	manual
Brakes:	mechanical
Cab:	Open operator station
Transmission:	5-speed gear
Transmission details ...

Hydraulics

Hydraulics
Type:	open center

Tractor hitch

Tractor hitch
Type:	Depth-O-Matic*Optional

Power Take-off (PTO)

Power Take-off (PTO)
Rear RPM:	540

Dimensions & Tires

Dimensions & Tires
Wheelbase:	84.5 inches 214 cm
Weight:	3500 lbs 1587 kg
Front tire:	5.00-15
Rear tire:	10-38
Full dimensions and tires ...

30 Serial Numbers

30 Serial Numbers
Location:	Data plate on the main tractor frame.
1946:	1001
1947:	1002
1948:	3386
1949:	6825
1950:	9345
1951:	13816
1952:	17934
how to read serial numbers...

Belt Pulley

Belt Pulley
Diameter:	13.5 inches 34 cm
Width:	6.25 inches 15 cm
RPM:	838
Speed:	2960 ft/min 902.21 meters/min

Electrical

Electrical
Ground:	positive
Battery volts:	6

Production

Production Manufacturer:Massey-Harris
Type:Row-Crop tractor
Factory:Racine, Wisconsin, USA
Massey Harris model 101 Junior gasoline tractors that were destined for the export market were marked as a "102G".

Variants

Variants 101 Junior:gasoline
102 Junior:distillate

1939 - 1946

Row-Crop tractor

Series:

Series:	101 Junior
	30 ↓

Production

Production
Manufacturer:	Massey-Harris
Type:	Row-Crop tractor
Factory:	Racine, Wisconsin, USA
Massey Harris model 101 Junior gasoline tractors that were destined for the export market were marked as a "102G".

Variants

Variants
101 Junior:	gasoline
102 Junior:	distillate

Massey-Harris 101 Junior Power

Massey-Harris 101 Junior Power
Drawbar (claimed):	20.5 hp 15.3 kW
PTO (claimed):	26.3 hp 19.6 kW
Plows:	2
Drawbar (tested):	24.65 hp 18.4 kW
Belt (tested):	30.56 hp 22.8 kW
power test details ...

Massey-Harris 101 Junior Engines

Massey-Harris 101 Junior Engines
Continental 2.0L 4-cyl gasoline
Continental 2.3L 4-cyl gasoline
Continental 2.7L 4-cyl gasoline
Fuel tank:	10 gal 37.9 L
Engine details ...

Mechanical

Mechanical
Chassis:	4x2 2WD
Steering:	manual
Cab:	Open operator station.
Transmission:	4-speed gear
Transmission details ...

Power Take-off (PTO)

Power Take-off (PTO)
Rear RPM:	540 (1.375)

Dimensions & Tires

Dimensions & Tires
Wheelbase:	83.5 inches 212 cm (row-crop)
	78 inches 198 cm (standard)
Weight:	3400 lbs 1542 kg
Front tire:	5.00-15
Rear tire:	10.00-36
Full dimensions and tires ...

101 Junior Serial Numbers

101 Junior Serial Numbers
Location:	On frame, rear-left side near transmission case
1939:	375001 (row-crop)
1940:	376158 (row-crop)
1941:	395570 (row-crop)
1942:	397637 (row-crop)
1943:	398596 (row-crop)
1944:	500003 (row-crop)
1945:	502434 (row-crop)
1946:	503779 (row-crop)
1939:	377001
1940:	377928
1941:	379550
1942:	379815
1943:	379855
1944:	380641
1945:	382569
1946:	384298
how to read serial numbers...

Belt Pulley

Belt Pulley
Diameter:	13 inches 33 cm
Width:	6 inches 15 cm
RPM:	837
Speed:	2958 ft/min 901.60 meters/min

Massey-Harris 101 Junior Power

Massey-Harris 101 Junior Power Drawbar (claimed):20.5 hp
15.3 kW
PTO (claimed):26.3 hp
19.6 kW
Plows:2
Drawbar (tested):24.65 hp
18.4 kW
Belt (tested):30.56 hp
22.8 kW
power test details ...

1939 - 1946

Row-Crop tractor

Series:

Series:	101 Junior
	30 ↓

Nebraska Tractor Test 318

Nebraska Tractor Test 318
124 gasoline 4-speed 2WD May 22 - 26, 1939 Link: Nebraska Tractor Test 318 file
Belt power (max):	26.27 hp 19.6 kW
Belt fuel use (max):	2.4 gal/hour 9.1 l/hour
Drawbar performance
Max power:	20.47 hp 15.3 kW
Gear 3 used for power test.
Max pull:	3,079 lbs 1396 kg
Gear 1 used for pull test.

Nebraska Tractor Test

Nebraska Tractor Test
140 gasoline 4-speed 2WD October 7 - 12, 1940 Link: Nebraska Tractor Test file
Belt power (max):	30.56 hp 22.8 kW
Belt fuel use (max):	2.6 gal/hour 9.8 l/hour
Drawbar performance
Max power:	24.65 hp 18.4 kW
Gear 3 used for power test.
Max pull:	3,278 lbs 1486 kg
Gear 1 used for pull test.

Massey-Harris 101 Junior Engines

Massey-Harris 101 Junior Engines Continental 2.0L 4-cyl gasoline Continental 2.3L 4-cyl gasoline Continental 2.7L 4-cyl gasoline Fuel tank:10 gal
37.9 L
Engine details ...

1939 - 1946

Row-Crop tractor

Series:

Series:	101 Junior
	30 ↓

Engines overview

Engines overview
Continental 2.0L 4-cyl gasoline
Continental 2.3L 4-cyl gasoline
Continental 2.7L 4-cyl gasoline

Engine Detail

Engine Detail
Continental
gasoline
4-cylinder
liquid-cooled vertical L-head
Original engine, used until 1940.
Displacement:	123.7 ci 2.0 L
Bore/Stroke:	3.00x4.375 inches 76 x 111 mm
Air cleaner:	oil bath
Compression:	6.7:1
Rated RPM:	1500
Starter volts:	6
Coolant capacity:	11 qts 10.4 L

Engine Detail

Engine Detail
Continental MFA
gasoline
4-cylinder
liquid-cooled vertical L-head
Larger engine, used from 1940 to 1943.
Displacement:	139.6 ci 2.3 L
Bore/Stroke:	3.1875x4.375 inches 81 x 111 mm
Air cleaner:	oil bath
Rated RPM:	1800
Starter volts:	6

Engine Detail

Engine Detail
Continental
gasoline
4-cylinder
liquid-cooled vertical L-head
Final engine, used from 1943 to 1946.
Displacement:	162 ci 2.7 L
Bore/Stroke:	3.4375x4.375 inches 87 x 111 mm

Mechanical

Mechanical Chassis:4x2 2WD
Steering:manual
Cab:Open operator station.
Transmission:4-speed gear
Transmission details ...

1939 - 1946

Row-Crop tractor

Series:

Series:	101 Junior
	30 ↓

Transmission

Transmission
Type:	gear
Gears:	4 forward and 1 reverse

Speeds

Speeds

Power Take-off (PTO)

Power Take-off (PTO) Rear RPM:540 (1.375)

Dimensions & Tires

Dimensions & Tires Wheelbase:83.5 inches
212 cm (row-crop)
78 inches
198 cm (standard)
Weight:3400 lbs
1542 kg
Front tire:5.00-15
Rear tire:10.00-36
Full dimensions and tires ...

1939 - 1946

Row-Crop tractor

Series:

Series:	101 Junior
	30 ↓

Massey-Harris 101 Junior Tires

Massey-Harris 101 Junior Tires
Ag front:	5.00-15
Ag rear:	10.00-36
Ag front:	4.75-15
Ag rear:	10.00-36

Dimensions

Dimensions
Wheelbase:	83.5 inches 212 cm (row-crop)
	78 inches 198 cm (standard)
Weight:	3400 lbs 1542 kg
Rear tread:	52 to 88 inches 132 to 223 cm (row-crop)
Rear tread:	52 inches 132 cm (standard)

101 Junior Serial Numbers

101 Junior Serial Numbers Location:On frame, rear-left side near transmission case
1939:375001 (row-crop)
1940:376158 (row-crop)
1941:395570 (row-crop)
1942:397637 (row-crop)
1943:398596 (row-crop)
1944:500003 (row-crop)
1945:502434 (row-crop)
1946:503779 (row-crop)
1939:377001
1940:377928
1941:379550
1942:379815
1943:379855
1944:380641
1945:382569
1946:384298

how to read serial numbers...