White Field Boss 21
Power
21 hp
Production
1986-1988
Engine
Diesel, 3-cylinder
Weight
1,584 lbs (2WD) [718 kg]
Drive
2WD/4WD
From the same series:
Introduction
Field Boss 21 Compact Utility Tractor
The Field Boss 21 is a compact utility tractor produced between 1986 and 1988. Manufactured by Iseki and distributed by White, this machine was designed for small-scale agricultural operations and property maintenance.
Engine and Performance
The tractor is powered by an Isuzu 3-cylinder liquid-cooled diesel engine with a displacement of 1.2 liters. It delivers 21 horsepower (15.7 kW) at a rated speed of 2600 RPM. The engine features a 22.5:1 compression ratio and utilizes glow plugs for cold-start reliability.
Transmission and Drivetrain
The powertrain consists of a manual transmission providing 12 forward and 4 reverse gears. The base configuration is a 4x2 2WD system, with an optional 4x4 Mechanical Front Wheel Drive (MFWD) available for improved traction. Braking is handled by mechanical expanding shoe brakes.
Hydraulics and PTO
The hydraulic system is an open-center design operating at a pressure of 2064 psi (142.3 bar), providing a total flow of 5.5 gpm (20.8 lpm). A Category I rear hitch allows for the attachment of various implements. The tractor is equipped with a 540 RPM rear PTO, and an optional crankshaft-driven front PTO is available to increase operational versatility.
Dimensions and Ergonomics
With a wheelbase of 59 inches (149 cm) and a width of 42.9 inches (108 cm), the Field Boss 21 is sized for maneuverability in tight spaces. The shipping weight is approximately 1,584 lbs (718 kg). The operator station features a two-post Roll-Over Protective Structure (ROPS), with optional accessories including a canopy and radio.
Conclusion
The Field Boss 21 is a durable, utility-focused tractor suitable for small farms and landscaping applications. Its combination of a 12-speed transmission and optional 4WD provides the flexibility required for varied terrain and light-duty agricultural tasks.
Production Information of White, Field Boss 21
- Compact Utility tractor
| Distributor | White |
|---|---|
| Original price | $8,500 (1988) |
| Manufacturer | Iseki |
Dimension and Tires Information of White, Field Boss 21
| Wheelbase | 59 inches [149 cm] |
|---|---|
| Shipping weight | 1,584 lbs (2WD) [718 kg] |
| Height (exhaust) | 75.2 inches [191 cm] |
| Length | 105.5 inches [267 cm] |
| Length(optional) | 1,672 lbs (2WD) [758 kg] |
| Width | 42.9 inches [108 cm] |
| Standard tires (ag) | Front: 4.00-12. Rear: 12.4-16 (2WD) |
|---|---|
| Lawn/turf rear | 13.6-16 |
| Lawn/turf rear(optional) | 24-8.50-12 (4WD) |
| Lawn/turf rear(optional) | Front: 6.00-12. Rear: 12.4-16 (4WD) |
| Lawn/turf front | 12.4-16 (2WD) |
Engine Specifications of White, Field Boss 21
- Isuzu
- Liquid-cooled
- Diesel
- 3-cylinder
| Rated RPM | 2600 |
|---|---|
| Displacement | 71.4 ci [1.2 L] |
| Air cleaner | Single stage |
| Bore/Stroke | 2.99x3.39 inches [76 x 86 mm] |
| Starter volts | 12 |
| Idle RPM | 850-2860 |
| Compression | 22.5:1 |
| Pre-heating | Glow plugs |
| Power | 21 hp [15.7 kW] |
Transmission Information of White, Field Boss 21
Transmission variants 1
| Gears | 12 forward and 4 reverse |
|---|
Mechanical Specs of White, Field Boss 21
- Two-post ROPS. Optional canopy and radio.
- Mechanical expanding shoe brakes
| Drive | 4x2 2WD |
|---|---|
| Drive(optional) | 4x4 MFWD 4WD optional |
| Steering | Manual |
Power Information of White, Field Boss 21
| Rear PTO | Transmission |
|---|---|
| Front PTO Type | 2600 |
| Rear PTO Type | 540 |
| Front PTO | Crankshaft-driven |
Hydraulics Specifications of White, Field Boss 21
| Type | Open center |
|---|---|
| Pressure | 2064 psi [142.3 bar] |
| Total flow | 5.5 gpm [20.8 lpm] |
Three-Point Hitch of White, Field Boss 21
| Rear Type | I |
|---|
Electrical System of White, Field Boss 21
| Charging system | Alternator |
|---|---|
| Charging amps | 35 |
| Battery volts | 12 |
Where it sits
With 21 HP, the White Field Boss 21 sits between Field Boss 16 (16 HP) and Field Boss 31 (30 HP) in White's range. Its power puts it in the 13th percentile of 1980s models in our database (2052 machines).
Frequently asked questions
How much horsepower does the White Field Boss 21 have?
The White Field Boss 21 delivers 21 HP.
What years was the White Field Boss 21 produced?
The White Field Boss 21 was produced in 1986-1988.
What engine does the White Field Boss 21 have?
The White Field Boss 21 is powered by a Diesel, 3-cylinder engine.
How much does the White Field Boss 21 weigh?
The White Field Boss 21 weighs 1,584 lbs (2WD) [718 kg].
Is the White Field Boss 21 4WD?
The White Field Boss 21 is available in 2WD/4WD.