Oliver 90
Built: 1937-1953 · Series: Other models
Built in 1937-1953, the Oliver 90 is a tractor from Oliver. It is powered by a six-cylinder engine producing 33 kW.
Drive type: 2-WD.
The engine is water-cooled. Within the range, rated power spans from 13 to 43 kW; with 33 kW, the 90 sits at the top. Directly alongside are the 600 with 30 kW below and the 1600 High Crop with 43 kW above.
Technical data
Engine
| Power | 44 hp (33 kW)correct |
|---|---|
| Cylinders | 6correct |
| Bore | 4.75 inch (118.85 mm)correct |
| Stroke | 6.25 inch (156.25 mm)correct |
| Naturally aspirated | naturally aspiratedcorrect |
| Cooling | water-cooledcorrect |
Drivetrain and chassis
| Drive | rear-wheel drivecorrect |
|---|
Origin and approval
| Plant | Hart-Parr Works, Charles City, Iowa, USAcorrect |
|---|---|
| Predecessor | ?correct |
Frequently asked questions
How much power does the Oliver 90 have?
The Oliver 90 delivers 44 hp.
What engine does the Oliver 90 have?
6 cylinders.
When was the Oliver 90 built?
Production years: 1937-1953.
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.
- 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.
We do not sell machines. We ask the dealers who carry this model and come back with price and lead time.
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This page carries 12 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
Sources: [1]
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.