Kubota GR2120 Engine Specifications
Engine Model …………………. Kubota D782
Engine Type …………………. Vertical, water-cooled, 4 cycle
diesel
Number of Cylinders …………………. 3
Displacement, cu in (L) …………………. 47.5 (0.778)
Engine Bore, in (mm) …………………. 2.64 (67.0)
Engine Stroke, in (mm) …………………. 2.90 (73.6)
Aspiration …………………. Natural
Rated Engine Power, hp (kW) …………………. 18.1 (13.5)
Maximum Engine Power, hp (kW) …………………. 18.9 (14.2)
Rated Engine Speed, rpm …………………. 3000
High Idle Speed, rpm …………………. 3450
Low Idle Speed, rpm …………………. 900-1000
Torque Speed, rpm …………………. 1350
Compression …………………. 24:1
Firing Order …………………. 1-2-3
Fuel Injection to combustion chamber …………………. Spherical
type
Fuel Injection Pump …………………. Bosch MD type mini pump
Governor …………………. All speed mechanical governor
Injection Nozzle …………………. Bosch Throttle type
Lubricating System …………………. Forced lubrication by trochoid
pump
Oil Pressure Indicating …………………. Electrical type switch
Lubricating Filter …………………. Full flow paper filter
(Cartridge type)
Cooling System …………………. Pressurized radiator, forced
circulation with water pump
Fuel Tank Capacity, gal (L) …………………. 4.8 (18.0)
Oil Capacity, qts (L) …………………. 3.0 (2.8)
Coolant Capacity, qts (L) …………………. 2.2 (2.1)
Electrical System Rating, Volts …………………. 12
Charging Alternator …………………. 12V, 150W
Starting System …………………. Electric Starting with Starter
Starting Motor …………………. 12V, 1.0 kW
Battery …………………. 51R (12V, 475CCA)
Power Take-Off
PTO Operational Type …………………. Shaft drive
PTO Horsepower, hp (kW) …………………. 13.5 (10.2)
PTO Clutch …………………. Hydraulic wet multi discs
PTO Brake …………………. Wet multi discs
Kubota GR2120 Transmission
Transmission Type …………………. Hydrostatic
Gears …………………. Infinite forward and reverse
Cruise Control …………………. Standard
Travel Speed Control …………………. Foot pedal
Transmission Oil Capacity, qts (L) …………………. 3.5 (3.3)
Maximum Forward Speed, mph (kph) …………………. 6.2 (10.0)
Maximum Reverse Speed, mph (kph) …………………. 3.1 (5.0)
Service Brake …………………. Internal expanding brake
Kubota GR2120 Wheels and Tires
Drive Wheels …………………. 4WD 4×4
Steering Configuration …………………. Front Steer
Steering System …………………. Full hydraulic power steering
(Glide steer)
Front Tire Size (Turf, Bar) …………………. 16×7.5-8
Rear Tire Size (Turf, Bar) …………………. 23×10.5-12
Front Tire Maximum Pressure, kPa (psi) …………………. 180 (26)
Rear Tire Maximum Pressure, kPa (psi) …………………. 150 (22)
Front Tread, in (mm) …………………. 32.2 (825)
Rear Tread, in (mm) …………………. 32.3 (820)
Kubota GR2120 Dimensions and Weight
Wheelbase, in (mm) …………………. 50.4 (1280)
Overall Length, in (mm) …………………. 78.3 (1990)
Width (with 48 inch mower deck), in (mm) …………………. 61
(1550)
Width (with 54 inch mower deck), in (mm) …………………. 67
(1700)
Overall Height, in (mm) …………………. 50.8 (1290)
Weight (without mower deck), lbs (kg) …………………. 790 (360)
Weight (with 48 inch mower deck), lbs (kg) …………………. 960
(435)
Weight (with 54 inch mower deck), lbs (kg) …………………. 970
(440)
48″ Mower Deck
Mower Deck Model …………………. RCK48GR
Cutting Width, in (mm) …………………. 48 (1219)
Cutting Height, in (mm) …………………. 1.0-4.0 (25-102)
Adjustment of Cutting Height …………………. Dial gauge
Mounting Method …………………. Quick joint, parallel linkage
Total Length, in (mm) …………………. 35.4 (900)
Total Width, in (mm) …………………. 61 (1550)
Total Height, in (mm) …………………. 11.4 (290)
Discharge Direction …………………. Right
Gearbox Oil Capacity, qts (L) …………………. 0.16 (0.15)
Weight, lbs (kg) …………………. 165 (75)
54″ Mower Deck
Mower Deck Model …………………. RCK54GR
Cutting Width, in (mm) …………………. 54 (1372)
Cutting Height, in (mm) …………………. 1.0-4.0 (25-102)
Adjustment of Cutting Height …………………. Dial gauge
Mounting Method …………………. Quick joint, parallel linkage
Total Length, in (mm) …………………. 35.6 (905)
Total Width, in (mm) …………………. 67 (1700)
Total Height, in (mm) …………………. 11.4 (290)
Discharge Direction …………………. Right
Gearbox Oil Capacity, qts (L) …………………. 0.16 (0.15)
Weight, lbs (kg) …………………. 177 (80)