Massey-Harris 101 Senior

Massey-Harris 101 Senior tractor photo
1942 - 1946
Row-Crop tractor
Series map:
101 Senior
*Estimated engine power for comparison only.
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.
Massey-Harris 101 Senior Engine
Continental 3.7L 6-cyl gasoline
Fuel tank18 gal (row-crop)
68.1 L
 14 gal (standard)
53.0 L
Engine details ...
Massey-Harris 101 Senior Power
Drawbar (claimed)26 hp
19.4 kW
Belt (claimed)36 hp
26.8 kW
Two-wheel drive
Manual steering
Mechanical internal expanding brakes
Open operator station.
Power Take-off (PTO)
Rear PTOtransmission
Rear PTO Type540 (1.375)
Engine RPM557@1500
Dimensions & Tires
Weight4000 lbs
1814 kg
Front tire6.00-16
Rear tire11-38
Full dimensions and tires ...
101 Senior Serial Number Location
Massey-Harris 101 Senior serial number location
Serial number plate on the left side of the 101 frame, near the transmission case.
101 Senior Serial Numbers
1942259762 (row-crop)
1943260430 (row-crop)
1944260796 (row-crop)
1945263020 (row-crop)
1946270145 (row-crop)
1942358869 (standard)
1943358975 (standard)
1944359458 (standard)
1945360927 (standard)
1946362520 (standard)

FAQ: How to read a serial number table.
Belt Pulley
Diameter13.5 inches
34 cm
Width6.25 inches
15 cm
 837 (Twin Power)
Speed2465 ft/min
751.33 meters/min
 2960 ft/min (Twin Power)
902.21 meters/min
Charging systemgenerator
Battery volts6
101 Senior references literature
Operating Instructions and Service Manual for Massey-Harris 101 Senior Tractors (193-2M-7-50-S) published in 1944
Page information
Peter Easterlund - owner of
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Peter Easterlund - owner/author
Updated on August 28, 2023
©2000-2023 -®. Notice: Every attempt is made to ensure the data listed is accurate. However, differences between sources, incomplete listings, errors, and data entry mistakes do occur. Consult official literature from the manufacturer before attempting any service or repair.