Introduction
RK37S Compact Utility Tractor
The RK37S is a compact utility tractor introduced in 2017, manufactured by TYM and distributed under the RK Tractors brand. Designed for agricultural and property maintenance, this four-wheel drive machine combines a reliable diesel powertrain with versatile implement handling capabilities.
Engine and Powertrain
The tractor is powered by a liquid-cooled Yanmar 3TNV88-CR 3-cylinder diesel engine. With a displacement of 1.6 liters and common rail direct injection, it produces a gross power output of 37.4 hp at a rated speed of 3000 RPM. The drivetrain features a syncro shuttle transmission providing 12 forward and 12 reverse gears, allowing for efficient speed management during varied field operations.
Hydraulics and PTO
The hydraulic system delivers a total flow of 11 gpm (41.6 lpm), with 6.4 gpm dedicated to the pump flow and 4.6 gpm to steering, ensuring consistent performance for loader and implement operation. The rear independent PTO operates at a standard 540 RPM and utilizes an electro-hydraulic clutch for smooth engagement under load.
Hitch and Maneuverability
Equipped with a category I rear hitch, the RK37S offers a lift capacity of 1764 lbs at 24 inches behind the lift points, and up to 2646 lbs at the hitch ends. The chassis is supported by power steering and wet disc brakes, providing precise control and stopping power. The tractor features a wheelbase of 64.5 inches and a ground clearance of 12.8 inches, facilitating movement across uneven terrain.
Conclusion
The RK37S is a robust utility tractor suited for small-scale farming, landscaping, and general property maintenance. Its combination of a high-revving Yanmar engine, synchronized transmission, and significant hydraulic capacity makes it a functional tool for operators requiring a versatile and maneuverable machine.
Production Information of RK Tractors, RK37S
- Original price was $16,999 in 2017
- Compact Utility tractor
| Distributor | RK Tractors (a part of Rural King) |
|---|---|
| Manufacturer | TYM |
Dimension and Tires Information of RK Tractors, RK37S
| Wheelbase | 64.5 inches [163 cm] |
|---|---|
| Weight | 3065 lbs [1390 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, RK37S
- 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, RK37S
Transmission variants 1
| Type | Syncro shuttle |
|---|---|
| Gears | 12 forward and reverse |
Mechanical Specs of RK Tractors, RK37S
- Four-wheel drive
- Two-post ROPS.
- Power steering
- Wet disc brakes
Power Information of RK Tractors, RK37S
| Rear PTO | Independent |
|---|---|
| Clutch | Electro-hydraulic |
| Rear PTO Type | 540 (1.375) |
Hydraulics Specifications of RK Tractors, RK37S
| 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, RK37S
| 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, RK37S
| Ground | Negative |
|---|---|
| Battery volts | 12 |
| Charging system | Alternator |
| Charging amps | 55 |
Where it sits
With 37 HP, the RK Tractors RK37S sits just below RK55S (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 RK37S have?
The RK Tractors RK37S delivers 37 HP.
What years was the RK Tractors RK37S produced?
The RK Tractors RK37S was produced in 2017+.
What engine does the RK Tractors RK37S have?
The RK Tractors RK37S is powered by a Diesel, 3-cylinder engine.
What transmission does the RK Tractors RK37S use?
The RK Tractors RK37S uses a Syncro shuttle transmission.
How much does the RK Tractors RK37S weigh?
The RK Tractors RK37S weighs 3065 lbs [1390 kg].
Is the RK Tractors RK37S 4WD?
The RK Tractors RK37S is available in 4WD.