RK Tractors RK55H VS White Field Boss 21 specs comparison

RK Tractors RK55H
General InfosMake | RK Tractors |
Model | RK55H |
Country | United states |
Production | From 2017 |
Price | - |
Tractor type | Compact Utility tractor |
Fuel | diesel |
Service repair manual | RK Tractors RK55H Manual |
Dimensions, sizes and tires
AG front tires | 9.5x16 |
AG rear tires | 14.9x24 |
Lawn front tires | 12x16.5 |
Lawn rear tires | 12x16.5 |
Indus front tires | 12x16.5 |
Indus rear tires | 16.9x24 |
Weight | 3814 lbs or 1730 kg |
Length | 141.3 inches [358 cm] |
Width | 63.8 inches [162 cm] |
Height | 102.1 inches [259 cm] |
Wheelbase | 76.2 inches [193 cm] |
Ground clearance | 13.8 inches [35 cm] |
Turning radius | - |
Rear tread size | - |
Front tread size | - |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 127.6 ci or 2.1 L |
Cylinders | 4 cylinders |
Engine power | 55.1 hp or 41.1 kW |
Engine RPM | 2800 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | common rail direct injection |
Fuel tank size | 17 gal or 64.3 L |
Oil capacity | - |
Oil change | - |
Starter motor | electric |
Starter volts | 12 V |
Parts And Accessories | RK Tractors RK55H Parts |
Batteries number | 1 |
Batteries voltage | 12 V |
Battries Amps | - |
Cold Amps | - |
Ground force | negative |
Charging system | alternator |
Charging Volts | - |
Charging Amps | 70 amps |
Trans system | - |
Trans type | hydrostatic |
Trans gears | infinite (3-range) forward and reverse |
Clutch system | - |
Wheel drive | 4x4 MFWD 4WD |
Final drive | - |
Steering | power |
Braking system | wet disc |
Cabin type | Two-post ROPS |
Differentiel lock | - |
System | - |
Valves | 2 |
Pump flow | 9.5 gpm or 36.0 lpm |
SVC flow | - |
Steering flow | 5 gpm or 18.9 lpm |
Tank capacity | - |
Hydraulic pressure | - |
Max flow | 14.5 gpm or 54.9 lpm |
Drawbar type | - |
Claimed power | - |
Drawbar horsepower | - |
Fuel consumption | - |
Pulling power | - |
Claimed power | 42.2 hp or 31.5 kW |
Real power | - |
Engine @RPM | - |
PTO Clutch | electro-hydraulic |
Rear PTO | independent |
Rear PTO RPM | 540 (rpm) |
Front PTO | - |
Front PTO RPM | - |
Mid PTO | Optional |
Mid PTO RPM | - |
Fuel consumption | - |
Hitch system | position and draft control |
Rear hitch | I |
Rear hitch lift | 3314 lbs or 1503 kg |
Front hitch | - |
Front hitch lift | - |

White Field Boss 21
General InfosMake | White |
Model | Field Boss 21 |
Country | United states |
Production | From 1986 Until 1988 |
Price | 8,500 USD |
Tractor type | Compact Utility tractor |
Fuel | diesel |
Service repair manual | White Field Boss 21 Manual |
Dimensions, sizes and tires
AG front tires | 4.00-12 |
AG rear tires | 12.4-1 |
Lawn front tires | 12.4-16 (2WD) |
Lawn rear tires | 12.4-16 (2WD) |
Indus front tires | - |
Indus rear tires | - |
Weight | 1,584 lbs or 718 kg |
Length | 105.5 inches [267 cm] |
Width | 42.9 inches [108 cm] |
Height | - |
Wheelbase | 59 inches [149 cm] |
Ground clearance | - |
Turning radius | - |
Rear tread size | - |
Front tread size | - |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 71.4 ci or 1.2 L |
Cylinders | 3 cylinders |
Engine power | 21 hp or 15.7 kW |
Engine RPM | 2600 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | - |
Fuel tank size | 6.1 gal or 23.1 L |
Oil capacity | - |
Oil change | - |
Starter motor | - |
Starter volts | 12 V |
Parts And Accessories | White Field Boss 21 Parts |
Batteries number | - |
Batteries voltage | 12 V |
Battries Amps | - |
Cold Amps | - |
Ground force | - |
Charging system | alternator |
Charging Volts | - |
Charging Amps | 35 amps |
Trans system | - |
Trans type | - |
Trans gears | 12 forward and 4 reverse |
Clutch system | - |
Wheel drive | 4x2 2WD |
Final drive | - |
Steering | manual |
Braking system | mechanical expanding shoe |
Cabin type | Two-post ROPS |
Differentiel lock | - |
System | open center |
Valves | - |
Pump flow | - |
SVC flow | - |
Steering flow | - |
Tank capacity | - |
Hydraulic pressure | 2064 psi or 142.3 bar |
Max flow | 5.5 gpm or 20.8 lpm |
Drawbar type | - |
Claimed power | - |
Drawbar horsepower | - |
Fuel consumption | - |
Pulling power | - |
Claimed power | 19 hp or 14.2 kW |
Real power | - |
Engine @RPM | - |
PTO Clutch | - |
Rear PTO | transmission |
Rear PTO RPM | 540 (rpm) |
Front PTO | crankshaft-driven |
Front PTO RPM | 2600 (rpm) |
Mid PTO | - |
Mid PTO RPM | - |
Fuel consumption | - |
Hitch system | - |
Rear hitch | I |
Rear hitch lift | - |
Front hitch | - |
Front hitch lift | - |
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Useful links and guides ....
- RK Tractors provided us with the latest version of its RK55H service repair manual
- Find All mechanical and electrical parts and accessories of RK Tractors RK55H farm-tractor here
- Get your White Field Boss 21 manual book version
- Cabine, electrical And mechanical parts for White Field Boss 21 farm-tractor here