White Farm Equipment 31
Built: 1986–1988 · Series: FIELD-BOSS
More machines from model year 1986
White Field Boss: one brand built from three traditions, from the 16 to the 2-110, 11.9 to 198.6 kW, three- to eight-cylinder engines with water cooling
Between 1960 and 1963, White Motor Company successively acquired Oliver, Cockshutt and Minneapolis-Moline; in 1969 the three brands were merged into White Farm Equipment. From 1974, the silver Field Boss livery completely replaced the traditional colours: Oliver green, Minneapolis-Moline yellow, and the Cockshutt models.
Read on 4 more paragraphs
The register lists 18 live models, from the 16 to the 2-110, built between 1976 and 1988. Output ranges from 11.9 to 198.6 kW, weight from 499 to 13,705 kg, displacement from 852 to 10,457 cm3, across three- to eight-cylinder engines.
The enormous spread, from under 500 to over 13,700 kg, shows that the Field Boss name covered everything from compact yard tractors to large field tractors for big operations.
By unifying the range under one brand, White simultaneously ended decades of independence for Oliver, Cockshutt and Minneapolis-Moline in the US.
The enormous weight spread, from under 500 to over 13,700 kg, means practically every category of the ISO 730 three-point linkage occurs under the Field Boss name, from Category 0 on the smallest yard tractors to Category III on the largest field tractors. On a specific example, the actual category therefore matters more than the model designation alone. That spread also shows how many different markets and applications one single brand name had to serve at once.
Sources: SpecCodex register, model data: White Farm Equipment Field Boss
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 30.4 hp (22.4 kW)correct |
| Rated speed | 2,600 rpmcorrect |
| Cylinders | 3correct |
| Displacement | 1,504 cm³correct |
| Bore | 86.11 mmcorrect |
| Stroke | 86.11 mmcorrect |
| Compression ratio | 21.4correct |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 2,940 mmcorrect |
|---|---|
| Width | 1,320 mmcorrect |
| Height | 2,030 mmcorrect |
| Wheelbase | 1,650 mmcorrect |
| Unladen weight | 1,005 kgcorrect |
Drivetrain and chassis
| Drive | rear- and four-wheel drivecorrect |
|---|---|
| Gearbox | 12 V/4 Rcorrect |
| Front tyres | 5.00-15 ASF (4 WD: 7.00-16 AS)correct |
| Rear tyres | 11.2-24 AScorrect |
| Top speed | 20 km/hcorrect |
Origin and approval
| Construction | unit construction (no separate frame)correct |
|---|
Where this model stands
Power-to-weight ratio: 22.3 kW/t (22 kW / 1 t)
Power class: Compact (< 40 hp)
Stronger than 18% 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 White Farm Equipment 31 have?
The White Farm Equipment 31 delivers 30.4 hp.
How much does the White Farm Equipment 31 weigh?
The unladen weight is 1,005 kg.
What engine does the White Farm Equipment 31 have?
3 cylinders, 1,504 cm³ displacement, Diesel.
How fast does the White Farm Equipment 31 go?
Top speed is 20 km/h.
What are the dimensions of the White Farm Equipment 31?
2,940 mm × 1,320 mm × 2,030 mm.
When was the White Farm Equipment 31 built?
Production years: 1986–1988.
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 21 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.