- Vehicle type: unspecified
- Rigid chassis
- WhichTractor size: Utility
- No lab test on file
- 1941–1946
- 9,174 built
It was ranked on an engine power figure whose source does not say gross or net. WhichTractor size, not the maker’s category
We looked and the record does not say what this machine is. How we decide what a machine is
MASSEY-HARRIS M-H 81 specs: hp, weight, years
CONTINENTAL MFB-124 four-cylinder petrol. The manufacturer claimed 20.8 horsepower. No laboratory has tested one, so there is no measured figure at the shaft.
Engine power, claimed · gross or net not stated
20.8 hp
15.5 kW as stated by the source
No lab test on file
Claimed · standard not stated by the source
Source · Traktorenlexikon, “Massey-Harris Massey-Harris 81”, claimed
This is the maker’s own figure, measured at the engine. Power at the PTO is lower — by how much, for this machine, nobody has measured.
- Weight
- 2,674 lb
- Top speed
- 15.5 mph
MASSEY-HARRIS M-H 81 specs: key facts
The MASSEY-HARRIS M-H 81 was built from 1941 to 1946.
The MASSEY-HARRIS M-H 81 has a claimed engine power (gross or net not stated) of 15.5 kW (20.8 hp); it has no measured PTO figure.
The MASSEY-HARRIS M-H 81 is two-wheel drive (2WD).
The MASSEY-HARRIS M-H 81 has a CONTINENTAL MFB-124 engine, a 4-cylinder 2.03 L petrol unit.
The MASSEY-HARRIS M-H 81 weighs 1,213 kg (2,674 lb) unladen.
The MASSEY-HARRIS M-H 81 has a rear PTO running at 540 rpm.
Source · Traktorenlexikon, “Massey-Harris Massey-Harris 81”
How does the M-H 81 compare with its class?
- Strength:
A 55 L fuel tank is high for its class — 54% above the median of 35.6 L across the 68 machines within 10% of its power that hold this figure.
Derived by WhichTractor from 83 comparable records. How we work this out

How much horsepower does a M-H 81 have?
The only figure for the M-H 81 is 20.8 hp (15.5 kW) of claimed engine power, gross or net not stated, no test standard stated — not power at the shaft.
Source · Traktorenlexikon, “Massey-Harris Massey-Harris 81”
What engine is in a M-H 81?
A M-H 81 has a CONTINENTAL MFB-124, a 4-cylinder 2.03 L petrol engine.
| Make & model | CONTINENTAL MFB-124 |
|---|---|
| Cylinders | 4, liquid-cooled |
| Displacement | 123.7 ci · 2.03 L |
Source · Traktorenlexikon, “Massey-Harris Massey-Harris 81”
How much will a M-H 81 lift?
Hydraulic and PTO specifications for the M-H 81 are below.
| Rear PTO | 540 rpm |
|---|
Source · Traktorenlexikon, “Massey-Harris Massey-Harris 81”
What transmission does a M-H 81 have?
Transmission specifications for the M-H 81 are below.
| Clutch | Pedal operated dry Borg & Beck single disc clutch |
|---|---|
| Brakes | Mechanically operated drum brake acting on the differential designed as steering brake |
| Steering | Mechanical worm steering |
| Top speed | 15.5 mph · 25 km/h |
Source · Traktorenlexikon, “Massey-Harris Massey-Harris 81”
How much does a M-H 81 weigh?
A M-H 81 weighs 2,674 lb (1,213 kg) unladen.
| Unladen weight | 2,674 lb · 1,213 kgRC = 1,150 |
|---|---|
| Length | 119.0 in · 3,023 mm |
| Height | 58.0 in · 1,473 mm |
| Rear track | 48.0 in · 1,219 mmRC = 1,219-2,235 |
Source · Traktorenlexikon, “Massey-Harris Massey-Harris 81”
What oil does a M-H 81 take, and how much?
A M-H 81 engine takes 10.4 qt (9.8 L). Single source, not independently verified — always confirm against the operator’s manual for your machine.
| System | Capacity |
|---|---|
| Engine oil | 10.4 qt · 9.8 LSource: Traktorenlexikon, “Massey-Harris Massey-Harris 81” · single source, not independently verified |
| Transmission | 4.0 qt · 3.8 LSource: Traktorenlexikon, “Massey-Harris Massey-Harris 81” · single source, not independently verified |
| Cooling system | 12.0 qt · 11.4 LSource: Traktorenlexikon, “Massey-Harris Massey-Harris 81” · single source, not independently verified |
Always confirm against the operator’s manual for your machine before service.
Which tractors compare with a M-H 81?
Within 10% of its 20.8 hp of claimed engine power, the same type, and first built within 15 years of it.
- MASSEY-HARRIS M-H 8220.8 hp engine, claimed · 1941–1946Side by side with the M-H 81 →
- MASSEY-HARRIS 101/102 Junior20.5 hp engine, claimed · 1939–1946Side by side with the M-H 81 →
- John Deere Modell-M20.4 hp engine, claimed · 1947–1952Side by side with the M-H 81 →
- Volvo T-2220.2 hp engine, claimed · 1947–1952Side by side with the M-H 81 →
- Fendt Dieselross F2221 hp engine, claimed · 1938–1948Side by side with the M-H 81 →
- Kramer KB 22W21 hp engine, claimed · 1954–1957Side by side with the M-H 81 →
Common questions about the MASSEY-HARRIS M-H 81
Is a M-H 81 two-wheel drive or four-wheel drive?
The MASSEY-HARRIS M-H 81 is two-wheel drive (2WD).
What PTO does a M-H 81 have?
A M-H 81 has a 540 rpm rear PTO.
Sources and how this page was built
Compiled from Traktorenlexikon, “Massey-Harris Massey-Harris 81”.
Sources
Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution
- Traktorenlexikon: Massey-Harris Massey-Harris 81 — CC BY-SA 4.0, WIKIBOOKS-TL-116934 · revision 1065856. Wikibooks contributors (Traktorenlexikon). Original document