Massey Harris PONY 820
Built: 1957–1961 · Series: Other models
More machines from model year 1957
Not the right version? The data comes from vehicle registers holding many near-identical versions side by side. Photograph the data plate — we read make and type from it. Open the scanner e-mail address required
Massey Harris – other models: collective page of tractors outside the named ranges, from the Big Bull to the Pony and Pacer, 8.2 to 34 kW, kerosene, petrol and diesel engines
This page gathers the Massey Harris tractors the register could not assign to a named range – from early large tractors such as the Big Bull to the compact post-war Pony and Pacer models. Massey Harris was formed in 1891 from the merger of the Canadian farm-equipment makers Massey and Harris in Toronto, before the company merged in 1953 with Harry Ferguson's tractor firm to form Massey-Ferguson. TWIN POWER-CHALLENGER and TWIN POWER-PACEMAKER refer to the engageable two-speed PTO reduction. The entry TE-A-20 belongs to the licence-built Ferguson TE-20, briefly sold under the Massey name too in the transitional years after the merger.
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The register lists here 29 versions with 8.2 to 34 kW from two- to six-cylinder engines of 1,021 to 11,403 cm³, unladen weights of 857 to 5,352 kg, lengths of 2,520 to 4,394 mm, widths of 1,422 to 2,075 mm and heights of 1,346 to 2,080 mm; rated speeds range from 750 to 1,800 rpm. Engines came from Massey Harris itself, from Continental and Perkins, and from Chrysler; many early models were started on petrol and switched to cheaper kerosene once warm.
Between the world wars and through the 1940s Massey Harris was among the leading tractor makers of North America and Britain; the sturdy Pony and Pacer tractors served as affordable entry models and were exported to Europe too. The merger into Massey-Ferguson in 1953 ended independent model development.
When buying used, the condition of the cooling system and head gasket, rust on the mudguards and toolbox, and the function of the mechanical PTO and belt pulley matter most. Parts for Massey Harris engines often overlap with early Massey-Ferguson and Ferguson stock; wiring and the carburettor are the most common weak points on the older petrol and kerosene models.
Sources: SpecCodex register, model data: Massey Harris (weitere Modelle)
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 18.2 hp (13.4 kW)correct |
| Rated speed | 1,800 rpmcorrect |
| Torque | 78 Nmcorrect |
| Speed at max. torque | 1,500 rpmcorrect |
| Cylinders | 2correct |
| Displacement | 1,021 cm³correct |
| Bore | 85 mmcorrect |
| Stroke | 90 mmcorrect |
| Injection pressure | 147 barcorrect |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 2,800 mmcorrect |
|---|---|
| Width | 1,422 mmcorrect |
| Height | 1,524 mmcorrect |
| Wheelbase | 1,710 mmcorrect |
| Ground clearance | 470 mmcorrect |
| Unladen weight | 1,050 kgcorrect |
Drivetrain and chassis
| Drive | rear-wheel drivecorrect |
|---|---|
| Gearbox | 5 V/1 Rcorrect |
| Forward gears | 5correct |
| Reverse gears | 1correct |
| Front tyres | 4.00-15correct |
| Rear tyres | 9-24correct |
| Top speed | 15 km/hcorrect |
Working data
| Fuel tank capacity | 26 lcorrect |
|---|
Origin and approval
| Construction | frame constructioncorrect |
|---|---|
| Units built | 31,277correct |
Where this model stands
Power-to-weight ratio: 12.8 kW/t (13 kW / 1.1 t)
Power class: Compact (< 40 hp)
Stronger than 6% of the tractors in the register — out of 15,663 models with a stated power figure.
Calculated from the documented figures above — not a rating.
Frequently asked questions
How much power does the Massey Harris PONY 820 have?
The Massey Harris PONY 820 delivers 18.2 hp.
How much does the Massey Harris PONY 820 weigh?
The unladen weight is 1,050 kg.
What engine does the Massey Harris PONY 820 have?
2 cylinders, 1,021 cm³ displacement, Diesel.
How fast does the Massey Harris PONY 820 go?
Top speed is 15 km/h.
What are the dimensions of the Massey Harris PONY 820?
2,800 mm × 1,422 mm × 1,524 mm.
When was the Massey Harris PONY 820 built?
Production years: 1957–1961.
What to check before buying
- Check the hour meter against the service records — a replaced instrument is the most common gap.
- Compare the data plate and chassis number with the papers.
- Check the weights in the papers against the figures here — attachments change them.
- Check front and rear tyre sizes: mismatched pairs strain the drivetrain.
- Shift the gearbox cold and warm — jumps only show up at temperature.
- Load the hydraulics and watch for sag.
- Ask about parts availability for this build year — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
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This page carries 29 individual figures for this model. They come from 1 recorded source; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
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Other models in this series
30
40
744
745
745/745 S
BIG BULL
CHALLENGER (CH)
COLT-21
GENERAL PURPOSE (GP)
MH-25
MODELL-GG
MUSTANG-23
Sources: Wikibooks Traktorenlexikon (CC BY-SA 4.0) (retrieved August 2026) · Values adopted and presented in our own form; changes from the source are possible. · How we check the data
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.
