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Years in Production / 1942–1946

Massey-Harris

101 Senior

Explore the specifications, hardware, and original references for the Massey-Harris 101 Senior.

40hp

Engine estimate · from belt

2WD Only

Drive

1942–1946

Production years

Massey-Harris

Manufacturer

101 Senior / 01

At a glance

Production

Row-Crop tractor

Built in Racine, Wisconsin, USA

Original price was $1,300 in 1946

The Massey-Harris 101 Senior was similar to the 101 Super, but with a Continental engine instead of the Chrysler engine.

Manufacturer: Massey-Harris

Pto

Rear Pto: transmission
Rear Type: 540 (1.375)
Engine Rpm: 557@1500

Serial Numbers

FAQ: How to read a serial number table.

1942: 259762 (row-crop)
1942: 358869 (standard)
1943: 260430 (row-crop)
1943: 358975 (standard)
1944: 260796 (row-crop)
1944: 359458 (standard)
1945: 263020 (row-crop)
1945: 360927 (standard)
1946: 270145 (row-crop)
1946: 362520 (standard)

Belt Pulley

Diameter: 13.5 inches34 cm
Width: 6.25 inches15 cm
Rpm: 698
Rpm: 837 (Twin Power)
Speed: 2465 ft/min751.33 meters/min
Speed: 2960 ft/min (Twin Power)902.21 meters/min

Electrical

Ground: positive
Charging System: generator
Battery Volts: 6

Mechanical

Two-wheel drive

Manual steering

Mechanical internal expanding brakes

Open operator station.

101 Senior / 02

Under the hood

Engine Detail

Continental F226

gasoline

6-cylinder

liquid-cooled vertical L-head

Displacement: 226 ci3.7 L
Bore Stroke: 3.3125x4.375 inches84 x 111 mm
Air Cleaner: oil bath
Compression Ratio: 6:1
Rated Rpm: 1500
Rated Rpm: 1800 (Twin Power)
Firing Order: 1-5-3-6-2-4
Starter Volts: 6
Oil Capacity: 5 qts4.7 L
Coolant Capacity: 14 qts13.2 L
Sparkplug: Champion 8
Sparkplug Gap: 0.025 inches0.635 mm
Fuel Type: gasoline
Cylinders: 6
Cooling: liquid-cooled vertical L-head

Engine Options

Continental 3.7L 6-cyl gasoline

Fuel Tank: 18 gal (row-crop)68.1 L
Fuel Tank: 14 gal (standard)53.0 L

101 Senior / 03

Gears & controls

Transmission

Transmission Type: gear
Gears: 4 forward and 1 reverse
Clutch: dry disc
Oil Capacity: 24 qts22.7 L

101 Senior / 04

Size. Stance. Footprint.

Dimensions

Length: 126.25 in320 cm
Width: 66.25 in168 cm
Height: 63.25 in160 cm
Rear tread: 52 in132 cm

TractorSpecs source ↗

Dimensions And Tires

Weight: 4000 lbs1814 kg
Front Tire: 6.00-16
Rear Tire: 11-38

Tires And Tracks

Front Ag: 6.00-16
Front Ag: 10-38
Front Ag: 11-26 (standard)
Front Ag: 12-26 (standard)
Rear Ag: 11-38

101 Senior / 05