Kubota J313 generator


J Series

  • Prime Output 12.5 kVA (10.0 kW)
  • Standby Output 13.7 kVA (11.0 kW)
  • Frequency: 60 HZ
  • Phase: Three
Features & Benefits


  • The generator and the engine are direct-coupled to ensure a more reliable power supply with minimum power loss.
  • The J-Series uses a transistor AVR to ensure a stable flow of current for most jobs.
  • The waveform distortion is kept to a minimum by the skewed rotor, while the damper winding protects the generator during short circuits, regulates voltage fluctuations during condensive loads, and withstands load fluctuations during condensive and non-linear loads.

Clean Emissions

  • This generator uses Kubota original E-TVCS combustion to produce less soot, HC and CO emissions.

Easy Operation

  • Advanced design and engineering minimized both space and weight for easy use and storage.
  • Key switch, voltage meter, circuit breaker, and warning lamps are all conveniently gathered on a drip proof control panel.
  • The larger capacity fuel tank enables longer periods of continuous operation on a single tank.


  • One-point lifting eye and special forklift openings enhances transportability.

Simple Maintenance

  • Most gauges and filters are conveniently situated to simplify daily maintenance.
  • A double element air filter is used in the J-Series for heavy-duty use, and to protect the generator from sand-caused damages.


  • Automatically shut the engine down in case of abnormalities in oil pressure, water temperature, and when the Fan belt breaks.
  • Protective covers are attached on all output terminals to prevent electric shocks.
Type-Revolving field, AC generator
Standby OutputkVA (kW)13.7 (11.0)
Prime OutputkVA (kW)12.5 (10.0)
Voltage - Single PhaseV127
Voltage - Three PhaseV220
Phase / Wire-3/4
Power Factor-0.8
No. of Poles-2
InsulationClassRotor coil; class F, Stator coil; class B
Type of Coupling-Direct coupled
Single Phase 110VAN/A
Single Phase 127VA19.7 x 3
Single Phase 220VAN/A
Single Phase 240VAN/A
Three Phase 220VA32.8
Three Phase 380VAN/A
Three Phase 415VAN/A
Type -Vertical, water-cooled, 4-cycle diesel engine
No. of Cylinders-3
Bore x Strokemm67.0 x 68.0
Engine Speedrpm3600
Continuous Rated OutputkW (HP)12.3 (16.5)
Lubricant (API classification)-above CD grade
Oil CapacityL3.4
Coolant CapacityL3.0
Starting System-Electric - 12 volt DC
Fuel Consumption-Diesel fuel No.2 (ASTM D975)
at Full LoadL/h (gal./h)4.1 (1.1)
at 3/4 LoadL/h (gal./h)3.3 (0.9)
at 1/2 LoadL/h (gal./h)2.7 (0.7)
at 1/4 LoadL/h (gal./h)2.3 (0.6)
Fuel Tank Capacity - Continuous Operation HoursL (gal.)37.0 (9.8)
at Full Loadh9.1
at 3/4 Loadh11.3
at 1/2 Loadh13.9
at 1/4 Loadh16.4
Battery (Ah/5 h)-12 V (36 Ah)
Dimensions L x W x Hmm995 x 593 x 860
Approx. Net Weightkg255
Sound Level (Full Load at 23 ft. [7m])dB (A)76.5
Emergency Stop System-In case of abnormal: Oil pressure, water temperature