Kubota L4630 Engine Technical Data
Engine Model …………. Kubota V2203
Engine Type …………. 4-cycle, vertical, 4-cylinder indirect
injection diesel
Number of Cylinders …………. 4
Displacement, cu in (L) …………. 134.1 (2.197)
Engine Bore, in (mm) …………. 3.40 (87.0)
Engine Stroke, in (mm) …………. 3.60 (92.4)
Aspiration …………. Natural
Rated Engine Power, hp (kW) …………. 44.7 (33.3)
Rated Engine Speed, rpm …………. 2700
Maximum Torque, Nm (ft-lbs) …………. 146.2 (107.8)
Torque Speed, rpm …………. 1600
Compression Ratio …………. 20.5:1
Firing Order …………. 1-3-4-2
Fuel System …………. Indirect injection
Injection Pump …………. Bosch Type
Lubricating system …………. Forced Lubrication by Pump
Cooling system …………. Pressurized
Fuel Tank Capacity, gal (L) …………. 10.6 (40.0)
Oil Capacity, qts (L) …………. 8.7 (8.2)
Coolant Capacity, qts (L) …………. 7.9 (7.5)
Electrical System Rating, Volts …………. 12
Alternator Rating, Amps …………. 40/60
Power Take-Off
PTO Operational Type …………. Independent
PTO Horsepower, hp (kW) …………. 40.1 (29.5)
Rear PTO Speed, rpm …………. 540/750
Rear PTO / Engine Speed, rpm …………. 540/2550, 750/2250
Mid PTO …………. Optional
Mid PTO Speed, rpm …………. 2000
Kubota L4630 Transmission
Transmission Type …………. FST Sync Shuttle
Gearbox Type …………. 8F/8R, Fully synchronized
Creeper …………. Optional
Number of Forward Gears …………. 8 (16 with creeper)
Number of Reverse Gears …………. 8 (16 with creeper)
Clutch …………. Dry type single stage
Oil Capacity, qts (L) …………. 45.6 (43.0)
Maximum Forward Speed, mph (kph) …………. 17.9 (28.8)
Maximum Reverse Speed, mph (kph) …………. 14.9 (24.0)
Transmission Type …………. GST (Glide Shift)
Gearbox Type …………. 12F/8R, Fully synchronized
Creeper …………. Optional
Number of Forward Gears …………. 12 (24 with creeper)
Number of Reverse Gears …………. 8 (16 with creeper)
Clutch …………. Dry type single stage
Oil Capacity, qts (L) …………. 45.6 (43.0)
Maximum Forward Speed, mph (kph) …………. 17.9 (28.8)
Maximum Reverse Speed, mph (kph) …………. 14.9 (24.0)
Kubota L4630 Wheels and Tires
Drive Wheels …………. 4WD 4×4
Steering Configuration …………. Front steer
Steering System …………. Hydrostatic power
Brakes Type …………. Wet disc
Front Tire Size (Std) …………. 8.0×16
Rear Tire Size (Std) …………. 13.6×24
Front Tire Size (Opt) …………. 8.3×16
Rear Tire Size (Opt) …………. 14.9×24
Front Tread, in (mm) …………. 45.1 (1145)
Rear Tread, in (mm) …………. 44.9-55.5 (1140-1410)
Kubota L4630 Hydraulics and Hitch
Hydraulic System Type …………. Open Center
Implement Pump Flow, gpm (Lpm) …………. 9.8 (37.0)
Steering Pump Flow, gpm (Lpm) …………. 4.9 (18.5)
Hydraulic Pressure, Bar (psi) …………. 177 (2560)
Number of Standard Remote Valves …………. 3
3-Point Hitch Category …………. 1
Draft Sensing or Lift Control …………. Position control
Standard Lift Capacity 24-in (600 mm) behind pin, lb (kg) ………….
2760 (1250)
Standard Lift Capacity at lift pin, lb (kg) …………. 3860 (1750)
Upper Link Pin Diameter, in (mm) …………. 0.75 (19.0)
Lower Link Pin Diameter, in (mm) …………. 0.88 (22.4)
Lower Hitch Spacing, in (mm) …………. 28 (718)
Kubota L4630 Dimensions and Weight
Wheelbase, in (mm) …………. 74.6 (1895)
Overall Length, in (mm) …………. 124.8 (3170)
Height (ROPS), in (mm) …………. 95.3 (2420)
Height (Cab), in (mm) …………. 86.4 (2195)
Overall Width, in (mm) …………. 66.5 (1680)
Ground Clearance, in (mm) …………. 15.7 (400)
Turning Radius, in (mm) …………. 106.7 (2700)
Weight (ROPS), lb (kg) …………. 3350 (1520)
Weight (Cab), lb (kg) …………. 3725 (1690)