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Tractor · 1986Unverified

White Field Boss 31

Name: White Field Boss 31
Brand: White

White Field Boss 31 — Compact Utility tractor · 25 hp. Reference specifications; pending source verification.

The White Field Boss 31 is a tractor with a rated power output of 25 hp, positioning it at the lighter end of its class. It was manufactured from 1986 to 1988. This model features a 3-cylinder diesel liquid-cooled engine, paired with four-wheel drive and a 12-speed gearbox. Its operating weight is listed as 2215 to 2414 pounds.

Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.

Rated power

25 hp

Weight

2215 to 2414 pounds

Catalogue coverage

Variants represented

Richest spec table

73 rows

Recorded power

25 hp

Recorded weight

1004 kg

Transmissions

12-speed partially synchronized

Production years

1986-1988

Verified variants

No linked source document is currently displayed; verify critical figures with the manufacturer or dealer.

Hover a source tag to verify

Overview

DistributorWhiteReference

ManufacturerIsekiReference

Compact Utility tractorReference

Original price was $9,000 in 1988Reference

Two- or four-wheel driveReference

2WD SteeringmanualReference

4WD SteeringpowerReference

Mechanical wet discs brakesReference

Two-post ROPS. Optional canopy and radio.Reference

Engine

Isuzu 1.5L 3-cyl dieselReference

Fuel tank28.0 LReference

Engine22.4 kWReference

IsuzuReference

dieselReference

3-cylinderReference

liquid-cooled inlineReference

Displacement1.5 LReference

Bore/Stroke86 x 86 mmReference

Power22.4 kWReference

Compression21.4:1Reference

Rated RPM2600Reference

Idle RPM850-2860Reference

Firing order1-3-2Reference

Starter volts12Reference

Transmission

12-speed partially synchronizedReference

TransmissionTriple-syncReference

Typepartially synchronizedReference

Gears12 forward and 4 reverseReference

Three synchronized gears in four ranges.Reference

PTO & Hydraulics

PTO (claimed)18.6 kWReference

Typeopen centerReference

Pressure147.2 barReference

Total flow29.1 lpmReference

Rear TypeIReference

Rear PTOindependentReference

Rear PTO Type540 (1.375)Reference

Front PTOliveReference

Front PTO Type2600Reference

Dimensions

Wheelbase165 cmReference

Weight2215 to 2414 poundsReference

Front tire5.00-15Reference

2WD Rear tire11.2-24Reference

2WD Standard tires (ag)Front: 5.00-15. Rear: 11.2-24Reference

4WD Standard tires (ag)Front: 7.00-16. Rear: 11.2-24Reference

2WD Lawn/turf front24x8.50-12Reference

4WD Lawn/turf front212x800-15Reference

Lawn/turf rear355x800-20Reference

Length294 cmReference

Width132 cmReference

Height (exhaust)203 cmReference

2WD Shipping weight1004 kgReference

4WD Shipping weight1094 kgReference

2WD Front tread96 to 105 cmReference

4WD Front tread104 cmReference

Rear tread102 to 134 cmReference

White Field Boss 31 attachments

snowblowerReference

front-end loaderReference

Field Boss 31 Serial Numbers

Location:Tractor frame on leftReference

1986TE4300FS00028 (4WD)Reference

1987TE4300FS00175 (4WD)Reference

1988TE4300FS00568 (4WD)Reference

1986TE4300TM00126 (2WD)Reference

1987TE4300TM00163 (2WD)Reference

1988TE4300TM00276 (2WD)Reference

FAQ: How to read a serial number table.Reference

Electrical

GroundnegativeReference

Charging systemalternatorReference

Charging amps35Reference

Battery volts12Reference

Attachment overview

SnowblowerReference

White 1045QA loaderReference

White 1155 QA loaderReference

Rear mowers for the Field Boss 31 included finishing (48, 60, or 72 inch), flail (50 or 60 inch), and rotary cutters (48 or 60 inch). Rear blades in 5 or 6 foot widths, plus a 4.5 foot box scraper could be fitted. PTO-drive tillers were available in 40, 52, or 60 inch widths.Reference

Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.

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