Oliver 80 HC/KD
Built: 1937–1948 · Series: 80-SERIE
More machines from model year 1937
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Oliver 80 HC/KD: American four-cylinder tractor of the 80 Series with a 4.88-litre engine and 30.7 kW output, built between 1937 and 1948
Oliver was an American tractor manufacturer based in South Bend, Indiana, later absorbed into the White Motor Corporation. The 80 Series occupied the upper power segment of the Oliver line-up in the late 1930s and 1940s, below the 90 Series.
Read on 3 more paragraphs
The 80 HC/KD is powered by a water-cooled four-cylinder engine of 4.88 litres, built to run on petrol or kerosene, delivering 30.7 kW at 1,200 rpm, roughly 41.8 hp. At an unladen weight of 1,428 kg, a height of 1,343 mm, a length of 3,429 mm, a width of 1,562 mm and a wheelbase of 1,829 mm, the machine has a design top speed of 7 km/h.
A displacement of almost 5 litres at a low speed of 1,200 rpm delivered high torque for heavy drawbar work such as multi-furrow ploughing; this low-speed, large-displacement approach was typical of American farm tractors of the period, which favoured durability and steady pull over high revs. The very low top speed of 7 km/h confirms a design aimed purely at fieldwork rather than road transport.
When buying an Oliver 80 of this age, check the carburettor and ignition system, the tightness of the cooling system and wear on clutch and gearbox. On an engine this size, it is also worth checking oil consumption and compression on each cylinder, as well as the condition of the cylinder head and valves. The fuel tank and its mounting brackets are also worth a look for rust.
Sources: SpecCodex-Register: Kennwerte des Modells Oliver 80 HC/KD, Oliver Farm Equipment Company (Wikipedia)
Technical data
Engine
| Fuel | Benzin / Kerosincorrect |
|---|---|
| Power | 41.8 hp (30.7 kW)correct |
| Rated speed | 1,200 rpmcorrect |
| Cylinders | 4correct |
| Displacement | 4,882 cm³correct |
| Bore | 107.95 mmcorrect |
| Stroke | 133.35 mmcorrect |
| Compression ratio | 5.25correct |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 3,429 mmcorrect |
|---|---|
| Width | 1,562 mmcorrect |
| Height | 1,343 mmcorrect |
| Wheelbase | 1,829 mmcorrect |
| Unladen weight | 1,428 kgcorrect |
Drivetrain and chassis
| Drive | rear-wheel drivecorrect |
|---|---|
| Gearbox | 3 V/1 R or 4 V/1 Rcorrect |
| Front tyres | 7.50 x 18 (RC = 7.50 x 10)correct |
| Rear tyres | 12.75 x 28 (RC = 11.25 x 40)correct |
| Top speed | 7 km/hcorrect |
Origin and approval
| Construction | frame constructioncorrect |
|---|---|
| Units built | 12.313 (RC = 6.222)correct |
Where this model stands
Power-to-weight ratio: 21.5 kW/t (31 kW / 1.4 t)
Power class: Universal (40–100 hp)
Stronger than 27% 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 Oliver 80 HC/KD have?
The Oliver 80 HC/KD delivers 41.8 hp.
How much does the Oliver 80 HC/KD weigh?
The unladen weight is 1,428 kg.
What engine does the Oliver 80 HC/KD have?
4 cylinders, 4,882 cm³ displacement, Benzin / Kerosin.
How fast does the Oliver 80 HC/KD go?
Top speed is 7 km/h.
What are the dimensions of the Oliver 80 HC/KD?
3,429 mm × 1,562 mm × 1,343 mm.
When was the Oliver 80 HC/KD built?
Production years: 1937–1948.
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 22 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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Sources: [1]
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.