White Field Boss 21: all source data
All 60 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.
Overview
Production| Distributor | White |
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| Manufacturer | Iseki |
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| (no label) | Compact Utility tractor |
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| (no label) | Original price was $8,500 in 1988 |
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Engine| (no label) | Isuzu 1.2L 3-cyl diesel |
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| Fuel tank | 6.1 gal | 23.1 L |
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Transmission| (no label) | 12-speed |
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Power| Engine | 21 hp | 15.7 kW |
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| PTO (claimed) | 19 hp | 14.2 kW |
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Mechanical| Drive | 4x2 2WD |
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| Drive | 4x4 MFWD 4WD optional |
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| (no label) | Manual steering |
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| (no label) | Mechanical expanding shoe brakes |
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| (no label) | Two-post ROPS. Optional canopy and radio. |
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Hydraulics| Type | open center |
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| Pressure | 2064 psi | 142.3 bar |
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| Total flow | 5.5 gpm | 20.8 lpm |
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Pto| Rear PTO | transmission |
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| Rear PTO Type | 540 (1.375) |
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| Front PTO | independent |
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| Clutch | manual idler pulley |
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| Front PTO Type | 2600 |
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Dimensions| Wheelbase | 59 inches | 149 cm |
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| Weight | 1588 to 1676 pounds |
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| Front tire | 4.00-12 |
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| Rear tire | 12.4-16 (2WD) |
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Electrical| Charging system | alternator |
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| Charging amps | 35 |
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| Battery volts | 12 |
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Engine
Engine detail| (no label) | Isuzu E3AF1 |
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| (no label) | diesel |
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| (no label) | 3-cylinder |
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| (no label) | liquid-cooled |
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| Displacement | 71.4 ci | 1.2 L |
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| Bore/Stroke | 2.99x3.39 inches | 76 x 86 mm |
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| Power | 21 hp | 15.7 kW |
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| Air cleaner | single stage |
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| Pre-heating | glow plugs |
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| Compression | 22.5:1 |
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| Rated RPM | 2600 |
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| Idle RPM | 850-2860 |
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| Starter volts | 12 |
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Transmission
Transmission| Gears | 12 forward and 4 reverse |
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Dimensions
Tires| Standard tires (ag) | Front: 4.00-12. Rear: 12.4-16 (2WD) |
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| Standard tires (ag) | Front: 6.00-12. Rear: 12.4-16 (4WD) |
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| Lawn/turf front | 12.4-16 (2WD) |
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| Lawn/turf front | 24-8.50-12 (4WD) |
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| Lawn/turf rear | 13.6-16 |
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Dimensions| Wheelbase | 59 inches | 149 cm |
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| Length | 105.5 inches | 267 cm |
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| Width | 42.9 inches | 108 cm |
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| Height (exhaust) | 75.2 inches | 191 cm |
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| 2WD Shipping weight (2WD) | 1588 lbs | 720 kg |
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| 4WD Shipping weight (4WD) | 1676 lbs | 760 kg |
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| 2WD Ground clearance | 13.8 inches | 35 cm |
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| 4WD Ground clearance | 11.8 inches | 29 cm |
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| 2WD Front tread | 33.5/37.5. inches | 85/95 cm |
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| 4WD Front tread | 37.4 inches | 94 cm |
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| Rear tread | 34.6/40.9 inches | 87/103 cm |
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