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White Field Boss 31 vs White Field Boss 37

Verdict: White Field Boss 31 vs White Field Boss 37

The White Field Boss 31 and the White Field Boss 37 are both tractors — here is how they stack up on the figures that matter. White Field Boss 37 leads on rated power with 30 hp against 25 hp. White Field Boss 37 is the lighter machine (1,324 kg vs 2,215 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. White Field Boss 37 holds more fuel (40.0 L vs 28.0 L) for longer stints between fills. In short: choose the White Field Boss 37 for outright pulling power, or the White Field Boss 31 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

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Fit & specs
White Field Boss 31 Tractor
White
62
Fit score
Best match
Clear
White Field Boss 37 Tractor
White
62
Fit score
Best match
Clear
Rated power
25 hp
30 hp
Confidence
40%
40%
Guide price
Overview
Distributor
WhiteReference
WhiteReference
Manufacturer
IsekiReference
IsekiReference
Three synchronized gears in four ranges.Reference
liquid-cooledReference
2WD Steering
manualReference
4WD Steering
powerReference
Original price
$11,000 (1988)Reference
Final drives
helical gearReference
Steering
powerReference
Engine
Fuel tank
28.0 LReference
40.0 LReference
Engine
22.4 kWReference
27.6 kWReference
Displacement
1.5 LReference
1.8 LReference
Bore/Stroke
86 x 86 mmReference
84 x 82 mmReference
Power
22.4 kWReference
27.6 kWReference
Compression
21.4:1Reference
21:1Reference
Rated RPM
2600Reference
2600Reference
Idle RPM
850-2860Reference
Firing order
1-3-2Reference
1-3-4-2Reference
Starter volts
12Reference
12Reference
Air cleaner
dry elementReference
Pre-heating
glow plugsReference
Oil capacity
7.0 LReference
Transmission
Transmission
Triple-syncReference
Gears
12 forward and 4 reverseReference
18 forward and 6 reverseReference
PTO & Hydraulics
PTO (claimed)
18.6 kWReference
22.4 kWReference
Type
partially synchronizedReference
open centerReference
Pressure
147.2 barReference
147.2 barReference
Total flow
29.1 lpmReference
Rear Type
IReference
1Reference
Rear PTO
independentReference
independentReference
Rear PTO Type
540 (1.375)Reference
540Reference
Front PTO
liveReference
Front PTO Type
2600Reference
Valves
1 or 2Reference
Pump flow
29.1 lpmReference
Control
position and draft controlReference
Clutch
dry discReference
Engine RPM
540@2232Reference
Dimensions
Wheelbase
165 cmReference
180 cmReference
Weight
2215 to 2414 poundsReference
1324 kgReference
Front tire
5.00-15Reference
6.00-16Reference
2WD Rear tire
11.2-24Reference
12.4-28Reference
2WD Standard tires (ag)
Front: 5.00-15. Rear: 11.2-24Reference
Front: 6.00-16. Rear: 12.4-28Reference
4WD Standard tires (ag)
Front: 7.00-16. Rear: 11.2-24Reference
Front: 9.5-16. Rear: 8-16Reference
2WD Lawn/turf front
24x8.50-12Reference
4WD Lawn/turf front
212x800-15Reference
Lawn/turf rear
355x800-20Reference
11.2-28Reference
Length
294 cmReference
321 cmReference
Width
132 cmReference
181 cmReference
Height (exhaust)
203 cmReference
200 cmReference
2WD Shipping weight
1004 kgReference
4WD Shipping weight
1094 kgReference
2WD Front tread
96 to 105 cmReference
115 to 154 cmReference
4WD Front tread
104 cmReference
120 cmReference
Rear tread
102 to 134 cmReference
114 to 150 cmReference
Lawn/turf front
8-16Reference
Height (ROPS)
213 cmReference
2WD, 3,153 4WD} Shipping weight
1324 kgReference
Ground clearance
33 cmReference
White Field Boss 31 attachments
Field Boss 31 Serial Numbers
1986
TE4300TM00126 (2WD)Reference
0679 (4WD)Reference
1987
TE4300TM00163 (2WD)Reference
00713 (4WD)Reference
1988
TE4300TM00276 (2WD)Reference
01025 (4WD)Reference
Location:
Tractor frame on leftReference
Frame, front-leftReference
Electrical
Ground
negativeReference
negativeReference
Charging system
alternatorReference
alternatorReference
Charging amps
35Reference
35Reference
Battery volts
12Reference
12Reference
Battery CCA
531Reference
Attachment overview
Variants
TE4370
similar Iseki modelReference
White Field Boss 37 attachments
Field Boss 37 Serial Numbers

Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.

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