RK Tractors RK37S VS Yanmar 221 specs comparison

RK Tractors RK37S
General InfosMake | RK Tractors |
Model | RK37S |
Country | United states |
Production | From 2017 |
Price | - |
Tractor type | Compact Utility tractor |
Fuel | diesel |
Service repair manual | RK Tractors RK37S Manual |
Dimensions, sizes and tires
AG front tires | 7-16 |
AG rear tires | 11.2x24 |
Lawn front tires | 28x8.5-15 |
Lawn rear tires | 28x8.5-15 |
Indus front tires | 10-16.5 |
Indus rear tires | 43x16-20 |
Weight | 3065 lbs or 1390 kg |
Length | 126 inches [320 cm] |
Width | 53.5 inches [135 cm] |
Height | 94.5 inches [240 cm] |
Wheelbase | 64.5 inches [163 cm] |
Ground clearance | 12.8 inches [32 cm] |
Turning radius | - |
Rear tread size | - |
Front tread size | - |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 100.2 ci or 1.6 L |
Cylinders | 3 cylinders |
Engine power | 37.4 hp or 27.9 kW |
Engine RPM | 3000 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | common rail direct injection |
Fuel tank size | 9 gal or 34.1 L |
Oil capacity | - |
Oil change | - |
Starter motor | electric |
Starter volts | 12 V |
Parts And Accessories | RK Tractors RK37S Parts |
Batteries number | 1 |
Batteries voltage | 12 V |
Battries Amps | - |
Cold Amps | - |
Ground force | negative |
Charging system | alternator |
Charging Volts | - |
Charging Amps | 55 amps |
Trans system | - |
Trans type | syncro shuttle |
Trans gears | 12 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 | 1 |
Pump flow | 6.4 gpm or 24.2 lpm |
SVC flow | - |
Steering flow | 4.6 gpm or 17.4 lpm |
Tank capacity | - |
Hydraulic pressure | - |
Max flow | 11 gpm or 41.6 lpm |
Drawbar type | - |
Claimed power | - |
Drawbar horsepower | - |
Fuel consumption | - |
Pulling power | - |
Claimed power | 30.2 hp or 22.5 kW |
Real power | - |
Engine @RPM | - |
PTO Clutch | electro-hydraulic |
Rear PTO | independent |
Rear PTO RPM | 540 (rpm) |
Front PTO | - |
Front PTO RPM | - |
Mid PTO | - |
Mid PTO RPM | - |
Fuel consumption | - |
Hitch system | position control |
Rear hitch | I |
Rear hitch lift | 2646 lbs or 1200 kg |
Front hitch | - |
Front hitch lift | - |

Yanmar 221
General InfosMake | Yanmar |
Model | 221 |
Country | Japan |
Production | From 2014 |
Price | - |
Tractor type | Sub Compact Utility tractor |
Fuel | diesel |
Service repair manual | Yanmar 221 Manual |
Dimensions, sizes and tires
AG front tires | - |
AG rear tires | - |
Lawn front tires | 18x8.50-10 |
Lawn rear tires | 18x8.50-10 |
Indus front tires | 18x8.50-10 |
Indus rear tires | 26x12.0-12 |
Weight | 1537 lbs or 697 kg |
Length | 102.1 inches [259 cm] |
Width | 47.3 inches [120 cm] |
Height | 82.3 inches [209 cm] |
Wheelbase | 57.9 inches [147 cm] |
Ground clearance | 6.4 inches [16 cm] |
Turning radius | - |
Rear tread size | 35.2 inches |
Front tread size | 35.2 inches |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 60.3 ci or 1.0 L |
Cylinders | 3 cylinders |
Engine power | 19.4 hp or 14.5 kW |
Engine RPM | 3200 (rpm) |
Torque | 39.4 lb-ft or 53.4 Nm | Torque RPM | - |
Fuel type | diesel |
Fuel injection | - |
Fuel tank size | 6 gal or 22.7 L |
Oil capacity | 3.1 qts or 2.9 L |
Oil change | - |
Starter motor | electric |
Starter volts | 12 V |
Parts And Accessories | Yanmar 221 Parts |
Batteries number | 1 |
Batteries voltage | 12 V |
Battries Amps | - |
Cold Amps | 540 |
Ground force | negative |
Charging system | - |
Charging Volts | - |
Charging Amps | - |
Trans system | - |
Trans type | hydrostatic |
Trans gears | infinite forward and reverse |
Clutch system | - |
Wheel drive | 4x4 MFWD 4WD |
Final drive | - |
Steering | hydrostatic power |
Braking system | wet disc |
Cabin type | Two-post foldable ROPS |
Differentiel lock | - |
System | open center |
Valves | - |
Pump flow | 4.3 gpm or 16.3 lpm |
SVC flow | - |
Steering flow | 3.7 gpm or 14.0 lpm |
Tank capacity | - |
Hydraulic pressure | 1891 psi or 130.4 bar |
Max flow | - |
Drawbar type | - |
Claimed power | - |
Drawbar horsepower | - |
Fuel consumption | - |
Pulling power | - |
Claimed power | 15.6 hp or 11.6 kW |
Real power | - |
Engine @RPM | 554@3200 (rpm) |
PTO Clutch | 2057:3200 |
Rear PTO | independent |
Rear PTO RPM | 540 (rpm) |
Front PTO | - |
Front PTO RPM | - |
Mid PTO | independent |
Mid PTO RPM | 2000 (rpm) |
Fuel consumption | - |
Hitch system | - |
Rear hitch | 1 |
Rear hitch lift | 660 lbs or 299 kg |
Front hitch | - |
Front hitch lift | - |
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Useful links and guides ....
- RK Tractors provided us with the latest version of its RK37S service repair manual
- Find All mechanical and electrical parts and accessories of RK Tractors RK37S farm-tractor here
- Get your Yanmar 221 manual book version
- Cabine, electrical And mechanical parts for Yanmar 221 farm-tractor here