Compare/RK Tractors RK25H vs RK Tractors RK37S

RK Tractors RK25H vs RK Tractors RK37S

Verdict: RK Tractors RK25H vs RK Tractors RK37S

The RK Tractors RK25H and the RK Tractors RK37S are both tractors — here is how they stack up on the figures that matter. RK Tractors RK37S leads on rated power with 37 hp against 18 hp. RK Tractors RK25H is the lighter machine (853 kg vs 1,390 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. RK Tractors RK37S holds more fuel (34.1 L vs 25 L) for longer stints between fills. RK Tractors RK25H is the newer design (2021 vs 2017). In short: choose the RK Tractors RK37S for outright pulling power, or the RK Tractors RK25H if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

Tune the fit score

Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

RK Tractors

Fit score

Best match

Clear

RK Tractors

Fit score

Best match

Clear

Rated power

18 hp

37 hp

Confidence

40%

Guide price

—

Overview

Distributor

RK Tractors (a part of Rural King)Reference

Manufacturer

TYMReference

liquid-cooledReference

Differential lock

mechanical rearReference

TRUEReference

Engine

18.4 kWReference

—

Displacement

1.3 LReference

1.6 LReference

Bore/Stroke

80 x 84 mmReference

86 x 90 mmReference

Power

18.4 kWReference

—

Fuel system

direct injectionReference

common rail direct injectionReference

Air cleaner

dryReference

—

Rated RPM

3000Reference

Starter

electricReference

Starter volts

12Reference

Oil capacity

2.7 LReference

—

Coolant capacity

3.6 LReference

—

Fuel Type

DieselReference

No of Cylinders

3 CylindersReference

3 cylinderReference

Rated engine speed

3,000 RPMReference

Aspiration

NaturalReference

—

Engine (gross)

—

27.9 kWReference

Power (gross)

—

27.9 kWReference

Transmission

Gears

infinite forward and reverse (2-range)Reference

12 forward and reverseReference

forward and reverse options

2 RangeReference

12F/12RReference

Wheel Drive

4WDReference

PTO & Hydraulics

PTO (claimed)

13.6 kWReference

22.5 kWReference

Hydraulic system

22.0 LReference

—

Type

hydrostaticReference

syncro shuttleReference

Capacity

22.0 LReference

100.2 cu. in.Reference

Pump flow

15.8 lpmReference

24.2 lpmReference

Total flow

26.3 lpmReference

41.6 lpmReference

Steering flow

10.5 lpmReference

17.4 lpmReference

Rear Type

IReference

Control

position controlReference

Rear lift

695 kgReference

—

Rear lift (at 24"/610mm)

499 kgReference

800 kgReference

Rear PTO

independentReference

Rear PTO Type

540 (1.375)Reference

Mid PTO

independentReference

—

Mid PTO Type

2000Reference

—

Valves

—

1Reference

Rear lift (at ends)

—

1200 kgReference

Clutch

—

electro-hydraulicReference

Capacities

Fuel

25.0 LReference

—

Fuel tank

25 LReference

34.1 LReference

Dimensions

Wheelbase

154 cmReference

163 cmReference

Weight

489 kgReference

607 kgReference

Length

273 cmReference

320 cmReference

Width

134 cmReference

135 cmReference

Height (ROPS)

228 cmReference

240 cmReference

Ground clearance

19 cmReference

32 cmReference

Front tire

—

7-16Reference

Rear tire

—

11.2x24Reference

Standard tires (ag)

—

Front: 7-16. Rear: 11.2x24Reference

Lawn/turf front

—

28x8.5-15Reference

Lawn/turf rear

—

41x14-20Reference

Industrial front

—

10-16.5Reference

Industrial rear

—

43x16-20Reference

RK Tractors RK25H attachments

Electrical

Ground

negativeReference

Charging system

alternatorReference

Charging amps

40Reference

55Reference

Battery volts

12Reference

Alternator size

12V 40AReference

12V 55AReference

Attachment overview

60" Mower deck

Cutting width

152 cmReference

—

Cut height

2 to 10 cmReference

—

RK Tractors BH6.7 Backhoe

Backhoe type

RK Tractors BH6.7 BackhoeReference

RK Tractors BH7.5 BackhoeReference

Transport height

205 cmReference

216 cmReference

Bucket width

60 cmReference

2-Foot flat digging depth

204 cmReference

231 cmReference

Reach from pivot

299 cmReference

313 cmReference

Loading height

160 cmReference

228 cmReference

Bucket Rotation

180°Reference

149°Reference

Swing Arc

180°Reference

Bucket force

1290 kgReference

2065 kgReference

Dipperstick force

850 kgReference

1147 kgReference

General

Make & Model

3TNV80FReference

Yanmar 3TNV88-CRReference

Cruise control

TRUEReference

FALSEReference

SCV control

JoystickReference

Power

Max Power

24.7 hpReference

37.4 hpReference

PTO

PTO Power

18.3 hpReference

30.2 hpReference

Rear PTO Control

Electric/HydroReference

Rear PTO RPM

540 RPMReference

540 rpmReference

Mid PTO RPM

2,000 RPMReference

—

Rear PTO Power

—

TRUEReference

Steering & brakes

Brakes

Wet DiscReference

Steering type

Hydrostatic power steeringReference

Hydraulics

Pump Rated Output (total)

6.95 gpmReference

11 gpmReference

Steering & Implements flow

2.77 gpm (4.18 gpm)Reference

4.6 gpm (6.4 gpm)Reference

Rear Hitch category (SAE designation)

Category 1Reference

Rear Hitch maximum lift capacity

695.8 kgReference

1,200.2 kgReference

Remote Valves

—

1 SetReference

Dimensions & weight

Height Over ROPS

228.1 cmReference

240 cmReference

Overall Length

273.8 cmReference

320 cmReference

Overall Width

134.1 cmReference

135.9 cmReference

Turning radius

250.2 cmReference

—

Overall weight

853.2 kgReference

1,390.3 kgReference

Operator station

Cab Availability

OptionalReference

—

Seat Suspension

TRUEReference

Variants

RK37S

—

shuttle ROPSReference

RK37H

—

hydrostatic ROPSReference

RK37SC

—

shuttle cabReference

RK37HC

—

hydrostatic cabReference

RK Tractors RK37S attachments

RK Tractors BH7.5 Backhoe

Wheels & tyres

Front Wheel Type

—

R4 Titan - 10-16.5 / R3 Titan - 7-16 / R1 Titan - 28x8 5-15Reference

Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.