Oliver 70 HC/KD
Built: 1937–1948 · Series: 70-SERIE
More machines from model year 1937
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Oliver 70 HC/KD: American six-cylinder tractor of the 70 Series with a water-cooled engine and 21.2 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 70 Series was unusual for its time, running a six-cylinder engine instead of the four- or two-cylinder layouts then common.
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The 70 HC/KD is powered by a water-cooled six-cylinder engine of 3.3 litres, built to run on petrol or kerosene, delivering 21.2 kW at 1,500 rpm, roughly 28.8 hp. At an unladen weight of 1,995 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 9.8 km/h.
The six-cylinder engine ran more smoothly than the common two-cylinder tractor engines of the day, a point Oliver used against its competitors; the combination of six cylinders and low revs gave a smooth, steady run that reduced driver fatigue during long hours of fieldwork. The low top speed of under 10 km/h shows the machine was built for pulling power in the field rather than road transport.
When buying a six-cylinder Oliver of this age, check for even running across all six cylinders, the condition of the carburettor and ignition distributor, and the tightness of the cooling system. Spark plugs and distributor contacts need closer checking than on a four-cylinder engine; parts for this rarer six-cylinder engine are harder to find than for the brand's common four-cylinder models.
Sources: SpecCodex-Register: Kennwerte des Modells Oliver 70 HC/KD, Oliver Farm Equipment Company (Wikipedia)
Technical data
Engine
| Fuel | Benzin / Kerosincorrect |
|---|---|
| Power | 28.8 hp (21.2 kW)correct |
| Rated speed | 1,500 rpmcorrect |
| Cylinders | 6correct |
| Displacement | 3,300 cm³correct |
| Bore | 79.38 mmcorrect |
| Stroke | 111.13 mmcorrect |
| Compression ratio | 6.5correct |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 3,429 mmcorrect |
|---|---|
| Width | 1,562 mmcorrect |
| Height | 1,343 mmcorrect |
| Wheelbase | 1,829 mmcorrect |
| Unladen weight | 1,995 kgcorrect |
Drivetrain and chassis
| Drive | rear-wheel drivecorrect |
|---|---|
| Gearbox | 4 V/1 R or 6 V/1 Rcorrect |
| Front tyres | 5.50 x 16 (RC = 7.50 x 10)correct |
| Rear tyres | 9.00 x 24 (RC = 9.00 x 40)correct |
| Top speed | 9.8 km/hcorrect |
Origin and approval
| Construction | frame constructioncorrect |
|---|---|
| Units built | 13.618 (RC = 50.941)correct |
Where this model stands
Power-to-weight ratio: 10.6 kW/t (21 kW / 2 t)
Power class: Compact (< 40 hp)
Stronger than 16% 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 70 HC/KD have?
The Oliver 70 HC/KD delivers 28.8 hp.
How much does the Oliver 70 HC/KD weigh?
The unladen weight is 1,995 kg.
What engine does the Oliver 70 HC/KD have?
6 cylinders, 3,300 cm³ displacement, Benzin / Kerosin.
How fast does the Oliver 70 HC/KD go?
Top speed is 9.8 km/h.
What are the dimensions of the Oliver 70 HC/KD?
3,429 mm × 1,562 mm × 1,343 mm.
When was the Oliver 70 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.