White 31 Field Boss
White 31 Field Boss MFWD
Model history
Model introduced 1986
Model discontinued 1988
Model status Discontinued
Preceded by White 2-32 Field Boss
Engine Specification
Engine make Isuzu
Fuel type Diesel
Power hp 30
Power kW 22
Governed rpm 2600
Displacement cu in /(litre) 91.4 in
No. of Cylinders 3
Bore in (mm) 3.39 in
Stroke in (mm) 3.39 in
Cooling system Water
Transmission Details
Transmission type Triple-sync fully synchronized
Clutch dry, single stage
Drive 2WD/MFWD
General Data
Linkage Category Cat I
P.T.O rpm 540
Tractor Dimensions
Length (inches/metres) 116 in
Width (inches/meters) 52 in
Height (inches/meters) 80 in
Weight (nominal) lb/kg 2215 lbs (2WD)
2414 lbs (4WD)
Turning circle (nominal) inches/meters 7.4 ft
Wheelbase 65 in
Other info
Factories Japan
Plow rating Unknown
This box: view · talk

The White 31 Field Boss tractor was built in Japan by Iseki for White Farm Equipment from 1986-1988. It features a 30 hp (22 kW) Isuzu engine.

Model historyEdit

For brand history, see White Farm Equipment.


  • White Field Boss 31 brochure, 1986

External linksEdit

Community content is available under CC-BY-SA unless otherwise noted.