Massey-Harris 81
The Massey-Harris 81 is a tractor produced by Massey Harris. It is equipped with a 123.7 ci 2.0 L engine. The rated power output is 27.07 hp 20.2 kW. Transmission: 4 forward and 1 reverse. Operating weight: 2,895 lbs 1313 kg.
Engine Power
27.07 hp
20.2 kW
Fuel & Capacities
12 gal
45.4 L
Transmission
4 forward and 1 reverse
Operating Weight
2,895 lbs
1313 kg
Massey Harris Massey-Harris 81 Serial Number & Year Decoder
Find the exact manufacture year of your tractor by checking your chassis serial number below.
Where to Find the Serial NumberThe serial number plate is commonly located on the front frame, tractor transmission housing (right side), or instrument panel badge.
Overview
 | 1941 - 1946
Row-Crop tractor |
|---|---|
1941 - 1946 | |
Row-Crop tractor | |
Production | |
|---|---|
Manufacturer | Massey-Harris |
Row-Crop tractor | |
Original price | $1,121 (1946) |
Variants | |
|---|---|
81R | row-crop gasoline |
81S | standard gasoline |
82 | distillate |
Massey-Harris 81 Engine | |
|---|---|
Continential 2.0L 4-cyl gasoline | |
Fuel tank | 12 gal
45.4 L |
Engine details ...  | |
Massey-Harris 81 Transmission | |
|---|---|
4-speed unsynchronized gear | |
Transmission details ...  |
Massey-Harris 81 Power | |
|---|---|
Drawbar (claimed) | 16 hp
11.9 kW |
PTO (claimed) | 26 hp
19.4 kW |
Drawbar (tested) | 20.79 hp
15.5 kW |
Belt (tested) | 27.07 hp
20.2 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Two-wheel drive | |
Steering | manual |
Open operator station. | |
Dimensions & Tires | |
|---|---|
Weight | 2,895 lbs
1313 kg |
Front tire | 4.00x15 |
Rear tire | 9.00x32 |
Full dimensions and tires ...  | |
Engine
Engine Detail — 123.7 ci / 2.0 L Gasoline
Manufacturer | Continential F124 |
Fuel Type | Gasoline |
Configuration | 4-cylinder, liquid-cooled vertical L-head |
Displacement | 123.7 ci
2.0 L |
Bore/Stroke | 3.00x4.375 inches
76 x 111 mm |
Fuel system | Marvel-Schebler TSX-28 carburetor |
Rated RPM | 1500 |
Starter volts | 6 |
Coolant capacity | 11 qts
10.4 L |
Transmission
Transmission — 4 forward and 1 reverse unsynchronized gear
Type | unsynchronized gear |
Gears | 4 forward and 1 reverse |
Clutch | dry disc |
 | |
Dimensions
Massey-Harris 81 Tires | |
|---|---|
Ag front | 4.00x15 |
Ag rear | 9.00x32 |
Dimensions | |
|---|---|
Length | 119 inches
302 cm |
Height | 58 inches
147 cm |
Weight | 2,895 lbs
1313 kg |
Tests
Nebraska Tractor Test 376 | |
|---|---|
Gasoline 4-speed 2WD
September 29 - October 20, 1941
Link: Nebraska Tractor Test 376 file | |
Belt power (max) | 27.07 hp
20.2 kW |
Belt fuel use (max) | 2.5 gal/hour
9.5 l/hour |
Drawbar performance | |
Max power | 20.79 hp
15.5 kW |
Gear 3 used for power test. | |
Max pull | 2,898 lbs
1314 kg |
Gear 1 used for pull test. | |
Photos
Massey-Harris 81R.
Massey-Harris 81R row-crop tractor.
Massey-Harris 81R operator station and controls.
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