RK Tractors RK55

RK Tractors RK55The RK Tractors RK55 is a 4WD compact utility tractor manufactured by TYM for distributor RK Tractors (a part of Rural King) from 2017. The RK Tractors RK55 is equipped with a 2.1 L (127.6 cu·in) four-cylinder diesel engine and one of two transmissions: a mechanical shuttle transmission with 16 forward and 16 reverse gears or a hydrostatic transmission with infinite (3-range) forward and reverse gears.

The RK Tractors RK55 compact utility tractor used the Yanmar 4TNV86T-CR engine. It is a 2.1 L, 2,091 cm2, (127.6 cu·in) four-cylinder turbocharged diesel engine with 86.0 mm (3.39 in) of the cylinder bore and 90.0 mm (3.54 in) of the piston stroke. This engine produced 55.9 PS (41.1 kW; 55.0 HP) at 2,800 rpm of output power.

The RK Tractors RK55 is equipped with power steering, wet disc brakes, Two-post ROPS or Cab and 64.3 liters (17 US gal.; 14.1 Imp. gal) fuel tank.

Following attachments are available for the RK Tractors RK55 compact utility tractor:

  • RK Tractors L110 loader
  • RK Tractors BH8.0 backhoe

RK Tractors RK55 variants:

  • RK55S: shuttle transmission and ROPS
  • RK55H: hydrostatic transmission and ROPS
  • RK55SC: shuttle transmission and cab
  • RK55HC: hydrostatic transmission and cab

RK Tractors RK55 Specifications

General Specifications
Model RK Tractors RK55
Length 3,580 mm (140.9 in)
Width 1,620 mm (63.8 in)
Height ROPS: 2,590 mm (102.0 in)
Cab: 2,520 mm (99.9 in)
Wheelbase 1,930 mm (76 in)
Ground clearance 350 mm (13.8 in)
Weight ROPS: 1,730 kg (3,814 lbs)
Cab: 1,915 kg (4,223 lbs)
Fuel tank capacity 64.3 liters (17 US gal.; 14.1 Imp. gal)
Battery 12V
Cabin type Two-post ROPS or Cab
Engine model Yanmar 4TNV86T-CR
Engine type Four-stroke, liquid-cooled, inline
Cylinders 4
Fuel type Diesel
Displacement 2.1 L, 2,091 cm2, (127.6 cu·in)
Bore and stroke 86.0 mm X 90.0 mm (3.39 in X 3.54 in)
Horsepower 55.9 PS (41.1 kW; 55.0 HP) at 2,800 rpm
Starter Electric
Transmission and chassis
Chassis 4×4 MFWD 4WD
Steering type Power
Brakes Wet disc
Transmission model
Transmission type Mechanical shuttle
Gears 16 forward and 16 reverse
Speed Forward: 30.7 kmh (19.1 mph) Reverse: 26.2 kmh (16.3 mph)
Transmission model
Transmission type Hydrostatic
Gears Infinite (3-range) forward and reverse
Speed Forward: 33.4 kmh (20.8 mph)
Front tires Ag: 9.5×16
Lawn/turf: 12×16.5
Industrial: 12×16.5
Rear tires Ag: 14.9×24
Lawn/turf: 16.9×24
Industrial: 16.9×24
Three-Point Hitch
Category I
Control type Position and draft control
Lift capacity (at ends) 1,500 kg (3,310 lbs)
PTO (Power take-off shaft)
Middle PTO type Optional
Middle PTO speed
Rear PTO type Independent with electro-hydraulic clutch
Rear PTO speed 540 rpm
Hydraulic system
Hydraulic type
Valves 2
Pump flow 9.5 gpm (36 lpm)
Steering flow 5.0 gpm (18.9 lpm)
Total flow 14.5 gpm (54.9 lpm)