Introduction
RK37H Compact Utility Tractor
The RK37H is a compact utility tractor introduced in 2017, manufactured by TYM for RK Tractors. It is designed to serve as a versatile machine for small-scale farming, landscaping, and property maintenance, offering a balance between agility and operational capacity.
Engine and Powertrain
The tractor is powered by a liquid-cooled Yanmar 3TNV88-CR three-cylinder diesel engine. This 1.6-liter unit utilizes common rail direct injection and produces a gross power output of 37.4 hp (27.9 kW) at a rated speed of 3000 RPM. Power is transmitted through a hydrostatic transmission featuring three distinct ranges, providing infinite forward and reverse speeds for optimal control during varied tasks.
Hydraulics and PTO
The hydraulic system provides a total flow of 11 gpm (41.6 lpm), with 6.4 gpm allocated to the pump flow and 4.6 gpm dedicated to steering, ensuring responsive handling even when using heavy implements. The machine is equipped with an independent rear power take-off (PTO) operating at 540 RPM, engaged via an electro-hydraulic clutch, with an optional mid-PTO available for additional versatility.
Chassis and Hitch
Built with four-wheel drive as standard, the RK37H includes power steering and wet disc brakes to ensure safety and maneuverability. The rear of the tractor features a Category I three-point hitch with position control. It offers a lift capacity of 1764 lbs (800 kg) measured at 24 inches behind the lift points, with a maximum capacity of 2646 lbs (1200 kg) at the link ends.
Conclusion
With an operating weight of 1408 kg and a wheelbase of 167 cm, the RK37H is configured for users requiring a compact yet capable utility tractor. It remains a practical solution for tasks demanding reliable hydraulic performance and flexible speed control in a small-frame package.
Production Information of RK Tractors, RK37H
- Original price was $18,999 in 2017
- Compact Utility tractor
| Distributor | RK Tractors (a part of Rural King) |
|---|---|
| Manufacturer | TYM |
Dimension and Tires Information of RK Tractors, RK37H
| Wheelbase | 66.1 inches [167 cm] |
|---|---|
| Weight | 3106 lbs [1408 kg] |
| Height (ROPS) | 94.5 inches [240 cm] |
| Length | 126 inches [320 cm] |
| Ground clearance | 12.8 inches [32 cm] |
| Width | 53.5 inches [135 cm] |
| Standard tires (ag) | Front: 7-16. Rear: 11.2x24 |
|---|---|
| Industrial rear | 43x16-20 |
| Industrial front | 10-16.5 |
| Lawn/turf front | 28x8.5-15 |
| Lawn/turf rear | 41x14-20 |
Engine Specifications of RK Tractors, RK37H
- Yanmar 3TNV88-CR
- Liquid-cooled
- Diesel
- 3-cylinder
| Starter volts | 12 |
|---|---|
| Displacement | 100.2 ci [1.6 L] |
| Fuel system | Common rail direct injection |
| Bore/Stroke | 3.39x3.54 inches [86 x 90 mm] |
| Starter | Electric |
| Rated RPM | 3000 |
| Power (gross) | 37.4 hp [27.9 kW] |
Transmission Information of RK Tractors, RK37H
Transmission variants 1
| Type | Hydrostatic |
|---|---|
| Gears | Infinite forward and reverse (3-range) |
Mechanical Specs of RK Tractors, RK37H
- Four-wheel drive
- Two-post ROPS.
- Power steering
- Wet disc brakes
Power Information of RK Tractors, RK37H
| Rear PTO | Independent |
|---|---|
| Mid PTO | Optional |
| Clutch | Electro-hydraulic |
| Rear PTO Type | 540 (1.375) |
Hydraulics Specifications of RK Tractors, RK37H
| Valves | 1 |
|---|---|
| Steering flow | 4.6 gpm [17.4 lpm] |
| Pump flow | 6.4 gpm [24.2 lpm] |
| Total flow | 11 gpm [41.6 lpm] |
Three-Point Hitch of RK Tractors, RK37H
| Rear Type | I |
|---|---|
| Rear lift (at 24"/610mm) | 1764 lbs [800 kg] |
| Control | Position control |
| Rear lift (at ends) | 2646 lbs [1200 kg] |
Electrical System of RK Tractors, RK37H
| Ground | Negative |
|---|---|
| Battery volts | 12 |
| Charging system | Alternator |
| Charging amps | 55 |
Where it sits
With 37 HP, the RK Tractors RK37H sits just below RK55H (55 HP) in RK Tractors's range. Its power puts it in the 20th percentile of 2010s models in our database (2476 machines).
Frequently asked questions
How much horsepower does the RK Tractors RK37H have?
The RK Tractors RK37H delivers 37 HP.
What years was the RK Tractors RK37H produced?
The RK Tractors RK37H was produced in 2017+.
What engine does the RK Tractors RK37H have?
The RK Tractors RK37H is powered by a Diesel, 3-cylinder engine.
What transmission does the RK Tractors RK37H use?
The RK Tractors RK37H uses a Hydrostatic transmission.
How much does the RK Tractors RK37H weigh?
The RK Tractors RK37H weighs 3106 lbs [1408 kg].
Is the RK Tractors RK37H 4WD?
The RK Tractors RK37H is available in 4WD.