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Jcb G144X(JCB GENERATOR)

Maintenance schedule, common problems & OEM parts breakdown

The JCB G144X is a 143 kVA (114 kW) diesel generator set designed for stationary prime and standby power applications. It is powered by an Iveco N67 TM2A 6-cylinder liquid-cooled engine and utilizes a Stamford UCI274E synchronous alternator. The unit weighs 1625 kg and measures 2900 x 900 x 1600 mm in its open configuration. Production falls within serial range OEM part reference to OEM part reference. It is part of the G144X/G144QX series, which succeeded earlier G100-G120 models and preceded the modern G144XQ/G160RX generations.

The G144X remains relevant in the used market due to its robust Iveco powertrain and long 500-hour service intervals, which reduce downtime compared to competitors with 250-hour schedules. The machine's compact footprint and integrated 250-liter fuel tank provide high autonomy (up to 16 hours at 50% load). Parts availability is supported by the widespread use of the Iveco N67 engine and Stamford alternator, making it a cost-effective option for industrial backup power where high cycle times are not required.

Below: full specifications, fluids & capacities, the factory service schedule, common service parts, verified fault codes, what owners discuss, attachment guidance, the complete assembly directory, and a serial-number reference. Complete parts lists with full OEM part numbers, exploded diagrams, quantities, and fitment data are available free in Heavy Parts AI.

Jcb G144X(JCB GENERATOR) specifications

Engine

ModelIveco N67 TM2A
Cylinders6, inline
Displacement6.7 l (408.8 cu in)
CoolingLiquid
Engine Power (Max)125 kW (167.5 hp)
Engine Power (Max HP)170 hp
RPM1500 rpm
Emissions TierNot documented for this exact serial range — verify with your dealer

Weights

Operating Weight (Open Frame)1625 kg (3582.5 lb)
Alternator Weight492 kg (1084.7 lb)

Dimensions

Transport Length2900 mm (9.5 ft)
Transport Width900 mm (2.95 ft)
Transport Height1600 mm (5.25 ft)
Alternator Length865 mm (2.84 ft)

Performance

Standby Power143 kVA / 114 kW
Prime Power130 kVA / 104 kW
Base Power104 kVA / 83 kW
Max Current206 A
Nominal Current165 A
Voltage400/230 V
Frequency50 Hz
Phases3
Power Factor0.8
Fuel Consumption (100% Load)31.1 l/h (8.22 gal/h)
Fuel Consumption (75% Load)23.3 l/h (6.15 gal/h)
Fuel Consumption (50% Load)15.5 l/h (4.09 gal/h)
Specific Fuel Consumption0.299 l/kWh
Autonomy (100% Load)8 h
Autonomy (75% Load)10.7 h
Autonomy (50% Load)16.1 h
Engine Efficiency35.9%
Alternator Efficiency91.5%
Power Unit Efficiency32.8%

Service capacities (summary)

Fuel Tank Capacity250 l (66.0 gal)
Engine Oil Capacity17.2 l (4.54 gal)
Cooling System Capacity25.5 l (6.73 gal)
Recommended Oil TypeAPI CF-4 or higher

Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.

Jcb G144X(JCB GENERATOR) maintenance schedule

Service intervalTasks
Every 10 h
  • Check engine oil level
  • Check coolant level
  • Check fuel level
  • Inspect for fluid leaks
  • Check battery electrolyte level
  • Inspect drive belt tension
Every 250 h
  • Replace engine oil and oil filter
  • Replace fuel filters (primary and secondary)
  • Check thermostat opening temperature
  • Inspect and adjust valve clearances and injector timing
  • Check crankcase breather pipe condition
  • Inspect intake air hose connections and clamps
Every 500 h
  • Replace engine oil and oil filter
  • Replace fuel filters
  • Replace air filter element
  • Check coolant concentration
  • Inspect drive belt tension and wear
  • Drain water separator condensation
Every 1,000 h
  • Replace engine oil and oil filter
  • Replace fuel filters
  • Replace air filter element
  • Check coolant concentration
  • Replace coolant, flush and pressure test cooling system
  • Inspect crankcase breather pipe
Every 5,000 h
  • Replace engine oil and oil filter
  • Replace fuel filters
  • Replace air filter element
  • Replace coolant, flush and pressure test cooling system
  • Check thermostat opening temperature
  • Inspect turbocharger condition

Servicing the G144X(JCB GENERATOR) beyond the schedule

Predictive Maintenance & Fluid Analysis

Monitor engine oil, hydraulic oil, and axle fluid samples at every 500-hour interval to establish a baseline. Check coolant concentration regularly to prevent corrosion in the Iveco N67 TM2A cooling system. Inspect the fuel water separator for condensation at each shift to protect the common-rail injection system. Track alternator winding insulation resistance annually to detect stator degradation before failure. Use JCB Engine Oil Special or equivalent 15W-40 API CF-4 oil to maintain the extended 500-hour service interval.

Corrective & Common Repairs

Replace the drive belt and inspect the tensioner at every 250-hour service to prevent alternator drive failure. Clean the charge air cooler every 5000 hours to restore turbocharger efficiency and fuel economy. Replace the air filter element at 500 hours or when the restriction indicator signals. Check valve clearances and injector timing at 250 hours to maintain combustion efficiency. Inspect the crankcase breather pipe for blockages to prevent oil leaks and pressure buildup.

Overhaul & Rebuild Points

The Iveco N67 TM2A engine requires a full coolant flush and pressure test at 1000 hours and every 5000 hours thereafter. Inspect the turbocharger shaft play and wastegate function at 5000 hours. Check alternator bearing noise and brush wear during major overhauls. Inspect the engine mounting rubber isolators for hardening or cracking to prevent vibration damage to the steel frame. Replace the fuel filters at every 250-hour interval to ensure injector longevity.

Seasonal & Environment Servicing

In cold climates, install a fuel heater and use low-temperature rated coolant to prevent gelling and freezing. Check the battery electrolyte level and charge state frequently in extreme temperatures. In dusty environments, inspect the air filter more often than the standard 500-hour interval. Ensure the radiator and charge air cooler fins are clean to maintain heat rejection. Verify the operation of the low coolant level sensor to prevent engine overheating during high ambient temperatures.

G144X(JCB GENERATOR) common service parts

Part numberPart
332/Z0320Filter, FuelCheck fitment →
332/Z0589Element, Fuel FilterCheck fitment →
332/Z1392Head, Fuel Filter, Support AssemblyCheck fitment →
332/Z1063Filter, Fuel, AssemblyCheck fitment →
332/Z0606Element, Fuel FilterCheck fitment →

Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.

G144X(JCB GENERATOR) fault codes & troubleshooting

CodeMeaningLikely causeWhat to do
P0087Fuel rail/system pressure too lowClogged fuel filters, failing lift pump, or restricted fuel supply line.Check fuel filter condition and fuel tank vent; inspect lift pump operation.
P0117Engine coolant temperature sensor circuit low voltageFaulty coolant temperature sensor, shorted wiring harness, or poor connector contact.Inspect sensor wiring for damage and check connector pins for corrosion or looseness.
P0521Engine oil pressure sensor range/performance issueFaulty oil pressure sensor, low oil level, or sensor circuit malfunction.Verify oil level and condition; test sensor signal with a multimeter.
P2047DEF/AdBlue injector circuit open (SCR system fault)Open circuit in the reductant injector wiring or faulty injector solenoid.Inspect injector connector and wiring harness for breaks or corrosion.
U0100Lost communication with Engine Control Module (ECM)Damaged CAN bus wiring, poor ground connection, or low battery voltage.Check battery voltage and ground straps; inspect CAN bus connectors for damage.
101Low transmission clutch pressure detectedLow transmission fluid level, faulty pressure sensor, or internal hydraulic leak.Check transmission fluid level and condition; inspect pressure sensor wiring.

Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.

G144X(JCB GENERATOR) attachments & work tools

Generator Set Power Systems

The G144X belongs to the JCB Generator Set range covering models G130RX through G220QX, utilizing IVECO engines for 50Hz and 60Hz applications. Serial number applicability for this specific operator's manual is defined as OEM part reference to OEM part reference. The power systems are supported by CP1 and CP2 digital control panels, with the ATP1 digital control panel available as an option.

Electrical & Control Configurations

Factory configurations include connection and wiring diagrams for the generator set, alongside warranty documentation. The system supports alternator maintenance and engine maintenance protocols specific to the IVECO power unit. Control interfaces are managed via the standard CP1/CP2 panels or the optional ATP1 panel.

Maintenance & Service Components

Routine maintenance procedures cover lubrication, inspection, and adjustment of the power systems. The service documentation includes detailed instructions for engine maintenance and alternator servicing. Safety recommendations and handling procedures are integrated into the operator's manual for the G144X series.

All G144X(JCB GENERATOR) assemblies by section

Every catalogued assembly group for the Jcb G144X(JCB GENERATOR). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Z Jcb Generator Set
Z1-2-1 Engine, Complete, Nef 67tm3a
33***23Kit, Valve Grinding Set1
33***24Kit, Gasket Overhaul1
33***08Engine, Complete 6.7lt, N67mnta651
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Z1-1-1 Engine, Complete, Nef67tm2a
33***23Kit, Valve Grinding Set1
33***24Kit, Gasket Overhaul1
33***46Engine, Complete, Nef67tm2a1
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Z1-0-0 Mandatory Spare Parts
33***19Filter, Oil1
33***20Filter, Fuel1
33***21Nozzle, Fuel Injector6
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Z1-3-1 Engine, Complete, Nef67te2a
33***89Engine, Complete, Nef67te2a1
33***90Kit, Gasket, Engine Overhaul1
33***91Kit, Valve Grinding Set1
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Z4-1-1 Gasket Sets, Overhaul, Nef67tm2a
33***23Kit, Valve Grinding Set1
33***24Kit, Gasket Overhaul1
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Z4-2-1 Gasket Sets, Overhaul, Nef67te2a
33***90Kit, Gasket, Engine Overhaul1
33***91Kit, Valve Grinding Set1
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Jcb : G144x(Jcb Generator) : Z Jcb Generator Set : Z05 Overhaul & Service Kits
Z6-3-1 Oil, Filter, Nef67tm2a & Nef67te2a
Z6-1-10 Fuel Filter, Assembly, Nef67te2a
32***21O Ring, Seal1
33***89Element, Fuel Filter1
33***99Bolt, Hex Head, M12 X 302
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Z6-1-1 Fuel Filter, Assembly, Nef67tm2a
33***20Filter, Fuel1
33***63Filter, Fuel, Assembly1
33***64Bolt, Hex Head, M8 X 252
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Z6-2-1 Fuel , Pre-Filter Assembly
02***58Isolator, Anti-Vibration2
33***06Element, Fuel Filter1
33***74Bolt, Hex Head, M10 X 302
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Z8-2-1 Fan
33***73Fan1
33***74Bolt, Hex Head, M10 X 306
33***75Spacer1
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Z8-2-10 Fan, &, Spacer Nef67tm3a & Nef67te2a
33***74Bolt, Hex Head, M10 X 306
33***75Spacer1
33***76Bolt, Hex Head, M10 X 1104
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Z8-3-1 Fan, Support, & Pulley
33***77Housing, Assembly1
33***78Bolt, Hex Head4
33***79Hub1
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Z8-1-1 Front End Drive, Accessories, Water Pump
33***22Belt, Fan1
33***67Bolt, Hex Head, M8 X 302
33***68Adjuster, Belt1
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Z9-1-10 Starter Motor, Nef67te2a
33***05Motor, Starter1
33***96Stud, M10 X 503
33***97Nut, M103
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Z9-1-1 Starter Motor
33***39Motor, Starter1
33***74Bolt, Hex Head, M10 X 303
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Z10-3-1 Alternator, Service Parts
33***40Regulator, Voltage1
33***49Alternator1
33***98Nut, M161
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Z10-1-1 Alternator, &, Mounting
33***49Alternator1
33***89Retainer1
33***90Bolt, Hex Head, M10 X 201
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Z10-2-1 Mounting, Alternator
33***71Bolt, Hex Head, M10 X 701
33***94Mounting, Alternator1
33***95Washer, Sealing1
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Z11-1-10 Ecu Unit, &, Sensors Nef67te2a
02***58Isolator, Anti-Vibration3
33***30Adapter, M121
33***49Bolt, Hex Head2
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Z11-2-1 Engine, Harness, Nef67te2a
33***37Bolt, Hex Head1
33***21Harness, Engine1
33***22Clip2
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Z11-1-1 Senders
33***71Washer1
33***14Sender, Air Pressure1
33***15Adapter1
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Z12-1-1 Set, Fuel Injection, Pipes Nef67tm2a, Tm3a
33***65Kit, Injection Fuel Lines1
33***03Bolt, Hex Head2
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Z12-10-1 Fuel Pipes, Filter To Fuel Pump
33***04O Ring8
33***41Pipe, Fuel1
33***42Pipe, Fuel1
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Z12-11-1 Fuel , Pipe Filter To Manifold
33***04O Ring4
33***44Pipe, Fuel1
33***45Valve, Control1
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Z12-12-1 Fuel , Pipe Ecu To Pump
33***04O Ring2
33***14Washer5
33***25Banjo, Connector1
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Z12-3-1 Leakoff Pipe, Nef67tm2a, Tm3a
33***44Pipe, Fuel1
33***11Seal, Gasket6
33***12Screw, Connector, M66
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Z12-2-1 Fuel Lines, Nef67tm2a, Tm3a
02***94Washer, Sealing1
33***04O Ring4
33***05Pipe, Fuel1
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Z13-1-1 Fuel Injector, Nef67tm2a, Tm3a
33***48Nozzle, Fuel Injector1
33***17Nozzle, Fuel Assembly6
33***18Gasket1
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Z13-1-10 Fuel Injector, Nef67te2a
02***31O Ring1
33***90Nozzle, Fuel Injector6
33***50Screw12
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Z13-2-1 Fuel Manifold
33***03Bolt, Hex Head1
33***57Bolt, M8 X 201
33***55Manifold, Fuel1
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Z14-1-10 Fuel Injection Pump, Nef67tm3a
33***21Sensor1
33***22Cable1
33***23Valve, Csa 12v1
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Z14-2-1 Fuel Injection Pump, Solenoid, Nef67tm2a
33***24Valve, Solenoid Etr, Fuel Injection Pump1
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Z14-11-1 Fuel Pump, Mounting, Nef67te2a
02***80Gear, Injection Pump1
33***80Nut3
33***79Stud3
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Z14-10-1 Fuel Injection Pump, Nef67te2a
02***81Nut1
33***10Connector2
33***18Seal2
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Z14-1-1 Fuel Injection Pump, Nef67tm2a
33***20Pump, Fuel Injection1
33***21Sensor1
33***22Cable1
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Z15-1-1 Fuel Lift Pump, Nef67tm2a, Tm3a
02***94Washer, Sealing1
33***42Pump, Fuel Assembly1
33***13Bolt, Banjo1
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Z16-1-1 Water Pump
33***37Pump, Water1
33***29Bolt, Hex Head, M8 X 252
33***31Gasket1
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Jcb : G144x(Jcb Generator) : Z Jcb Generator Set : Z17 Water Inlet & Bleed
Z18-1-10 Thermostat & Housing, Nef67tm3a
33***38Thermostat1
33***33Gasket1
33***34Housing, Thermostat1
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Z18-1-1 Thermostat & Housing, Nef67tm2a
33***32Thermostat1
33***33Gasket1
33***34Housing, Thermostat1
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Z18-1-20 Thermostat & Housing, Nef67te2a
33***04Thermostat1
33***33Gasket1
33***49Bolt, Hex Head3
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Z19-2-1 Crankcase, Breather, Nef67tm2a
33***47Valve, Breather1
33***48Gasket1
33***49Bolt, Hex Head3
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Z19-1-10 Rocker Cover, Nef67te2a
33***91Gasket, Rocker Cover1
33***83Cover, Rocker Assembly1
33***84Cap, Oil Filler1
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Z19-1-1 Rocker Cover, Assemblies, Nef67tm2a
33***59Gasket, Rocker Cover6
33***38Cover, Rocker1
33***39Cover, Rocker1
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Z19-2-10 Crankcase, Breather, Nef67te2a
02***52O Ring1
33***97Kit, Breather1
33***50Screw3
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Z20-1-1 Rocker Assembly
33***50Shaft, Rocker Assembly, Complete6
33***51Rod, Push12
33***52Bolt, Hex Head, M8 X 606
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Z20-1-10 Rocker Shaft, Assembly, Nef67te2a
02***40Housing, Rocker Lever1
33***98Washer3
33***02Shaft, Rocker Assembly6
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Jcb : G144x(Jcb Generator) : Z Jcb Generator Set : Z21 Valve Tappets & Push-Rods
Z22-1-10 Turbocharger, Nef67te2a
33***02Turbocharger1
33***62Gasket, Exhaust Manifold1
33***63Nut4
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Z22-1-1 Turbocharger, Nef67tm2a
33***35Turbocharger1
33***62Gasket, Exhaust Manifold1
33***63Nut4
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Z23-2-1 Turbocharger, Exhaust, Outlet
33***67Bolt, Hex Head, M8 X 306
33***67Clamp1
33***68Elbow1
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Z23-1-1 Turbo Pipework, Air Intake, Nef67tm2a
33***64Gasket1
33***65Bolt, Hex Head, M8 X 225
33***66Flange, Adapter1
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Z23-1-20 Turbocharger, Connectors, Air Nef67te2a
33***67Clamp1
33***24Plug1
33***25O Ring1
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Z23-1-10 Turbocharger, Connector, Nef67te2a
33***64Gasket1
33***65Bolt, Hex Head, M8 X 225
33***66Flange, Adapter1
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Z23-3-1 Turbocharger, Lubrication Piping, Nef67tm2a, Tm3a
02***96Gasket, Turbo Oil Drain1
33***90Bolt, Hex Head, M10 X 201
33***29Bolt, Hex Head, M8 X 252
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Z23-3-10 Turbocharger, Lubrication Piping, Nef67te2a
02***96Gasket, Turbo Oil Drain1
33***90Bolt, Hex Head, M10 X 201
33***78Adapter1
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Z25-1-10 Air Induction, Manifold, Nef67te2a
02***75Gasket, Liquid0
33***93Bolt, M8 X 257
33***59Bolt4
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Z25-1-1 Manifold, Induction
33***92Cover, Air Induction Manifold1
33***93Bolt, M8 X 2510
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Z26-1-10 Exhaust , Manifold, Nef67te2a
02***98Gasket, Exhaust Manifold6
33***96Bolt, M10 X 659
33***97Spacer12
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Z26-1-1 Manifold, Exhaust
33***94Manifold, Exhaust1
33***95Gasket6
33***96Bolt, M10 X 656
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Z27-2-10 Lifting Brackets, Engine, Nef67te2a
02***12Bracket, Lifting1
33***30Bolt4
33***59Bracket, Lifting1
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Z27-1-10 Cylinder Head, &, Valve Assemblies Nef67te2a
33***41Head, Cylinder, C/W Valve Assemblies1
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Z27-2-1 Lifting Brackets, Engine
33***20Bracket, Engine Lifting1
33***21Bolt, Hex Head2
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Z27-1-1 Cylinder Head, Assembly
33***25Gasket, Cylinder Head, T=1.25mm1
33***32Valve, Inlet6
33***33Valve, Exhaust6
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Z27-1-20 Cylinder Head, Assembly, Nef67te2a
33***94Gasket, Cylinder Head1
33***99Valve, Inlet12
33***00Valve, Exhaust12
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Z29-1-1 Oil Cooler, Assembly
02***17Gasket, Oil Cooler1
02***51Gasket, Filter Head1
33***63Cooler, Oil1
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Z29-1-10 Oil Cooler, Assembly, Nef67te2a
02***17Gasket, Oil Cooler1
02***51Gasket, Filter Head1
33***63Cooler, Oil1
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Z30-1-10 Dipstick, Assembly, Nef67te2a
33***30Tube, Dipstick1
33***31Dipstick1
33***32Plug2
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Z30-1-1 Dipstick, Assembly
33***43Switch, Oil Pressure1
33***48Plug, M141
33***49O Ring1
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Z31-2-1 Pump, Oil, Sump Extraction
33***58Pump, Sump Oil Extraction1
33***59Bracket, Oil Pump Support1
33***60Hose, Oil Extraction Pump1
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Z31-1-1 Oil Sump
02***32Plug, Threaded, M22 X 1.501
02***22Adapter1
02***23Gasket, Sump1
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Z32-1-1 Oil Pump
33***36Pump, Lubrication Oil1
33***43Bolt, Hex Head4
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Z33-1-1 Flywheel, Assembly
02***41Bolt8
33***45Flywheel, Assembly1
33***46Gear, Flywheel Ring1
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Z34-1-10 Flywheel Housing, Nef67te2a
02***75Gasket, Liquid0
02***72Seal, Oil1
33***56Dowel2
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Z34-1-1 Flywheel Housing
02***72Seal, Oil1
33***56Dowel2
33***91Bolt, M8 X 172
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Z35-1-10 Camshaft, Assembly, Nef67te2a
02***27Gear, Camshaft1
02***28Bracket, Camshaft Thrust1
33***91Bolt, M8 X 172
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Z35-1-1 Camshaft, Assembly
02***92Screw, Hex Flange Head6
33***61Gear, Camshaft Drive1
33***62Camshaft, Assembly1
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Z36-1-10 Front , Crank Case, Cover Nef67te2a
02***75Gasket, Liquid0
02***83Seal, Oil1
33***65Bolt, Hex Head5
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Z36-1-1 Front , Crank Case, Cover
02***75Gasket, Liquid0
02***83Seal, Oil1
33***91Bolt, Hex Head8
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Z36-2-1 Crankcase, Rear Cover
33***56Dowel2
33***91Bolt, Hex Head5
33***37Bolt, Hex Head4
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Z36-2-10 Rear, Crank Case, Cover Nef67te2a
02***75Gasket, Liquid0
33***56Dowel2
33***91Bolt, Hex Head2
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Z37-1-1 Piston & Con-Rod, Assemblies
33***26Piston, Assembly6
33***27Kit, Piston Rings, Standard6
33***29Kit, Main Bearing Standard6
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Z37-1-10 Piston & Con-Rod, Assemblies, Nef67te2a
33***29Kit, Main Bearing Standard6
33***81Rod, Connecting, Assembly6
33***82Bush, Small End1
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Z38-1-10 Crankshaft Assembly, Nef67te2a
02***11Gear, Crankshaft1
02***78Dowel1
33***28Bearing, Main Standard6
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Z38-1-1 Crankshaft Assembly
02***11Gear, Crankshaft1
02***78Dowel1
33***28Bearing, Main Standard6
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Z39-2-1 Plate, Cylinder, Block Stiffener
33***69Plate, Cylinder Block Stiffener1
33***70Bolt, Hex Head, M10 X 254
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Z39-1-1 Block Assembly, Nef67tm2a
02***70Screw, Hex Head Flanged, M12 X 12014
33***43Switch, Oil Pressure1
33***47Bolt, Banjo, M81
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Z42-1-1 Engine Mounting
33***99Bolt, Hex Head, M12 X 306
33***00Bracket, Front Engine Mounting, R/H1
33***01Bracket, Front Engine Mounting, L/H1
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Z43-1-1 Air Filter
33***46Element, Air Filter1
33***02Filter, Air Assembly1
33***03Cover, Rain Cap1
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Z46-4-1 Fan Guards
33***08Bolt, M8 X 1611
33***87Nut, M83
33***19Guard, Finger1
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Z47-2-10 Cooler, Combination, Hoses And Pipework, Nef67tm3a
33***67Bolt, Hex Head, M8 X 304
33***28Clamp6
33***29Hose, Air Charge Cooler2
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Z47-2-1 Cooler, Combination, Hoses And Pipework, Nef67tm2a
33***64Bolt, Hex Head, M8 X 251
33***67Bolt, Hex Head, M8 X 304
33***28Clamp6
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Z47-1-10 Cooler Assembly, Nef67tm3a
33***47Cap, Radiator 1 Bar1
33***26Radiator1
33***27Cooler, Charge Air1
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Z47-1-1 Cooler Assembly
33***47Cap, Radiator 1 Bar1
33***25Cowling, Fan1
33***26Radiator1
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Jcb : G144x(Jcb Generator) : Z Jcb Generator Set : Z48 Radiator/Cooler Hoses & Pipes
Z60-1-1 Chassis, Canopy Builds, Tm2 & Tm3
33***14Frame, Canopy Support, Lower1
33***33Nut1
33***34Pipe, Fuel Filler1
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Z60-1-10 Chassis, Frame & Components, Without Canopy
33***39Mounting, Rubber8
33***72Meter, Fuel1
33***73Bolt2
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Z60-2-1 Chassis, Canopy Builds, Te2a
33***14Frame, Canopy Support, Lower1
33***33Nut1
33***34Pipe, Fuel Filler1
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Z61-1-1 Canopy, Assembly, Standard Range
33***51Cover2
33***53Dowel, Location4
33***56Hinge10
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Z61-2-1 Canopy, Assembly, Rental Range
33***51Cover1
33***53Dowel, Location8
33***56Hinge6
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Z62-3-1 Generator Alternator, Uci274h
32***08Regulator, A.V.R Sx4601
32***99Kit-Rectifier, Service1
32***73Strip, Seal Filler, Pw50131
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Z62-1-1 Generator Alternator, Uci274e
32***08Regulator, A.V.R Sx4601
32***99Kit-Rectifier, Service1
32***20Alternator, Assembly, Uci 274e-161
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Z62-2-1 Generator Alternator, Uci274f
32***08Regulator, A.V.R Sx4601
32***99Kit-Rectifier, Service1
32***23Regulator, As440; Sa465 See Bulletin1
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Z63-10-1 Kit, Conversion, Can/Usb
33***91Kit, Can/Usb Converter; Kit Consists Of: Cc/Usb Converter; Usb Cable; Db9 Connector;, Telecontrol Software; Configuration Software1
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Z66-1-1 Battery, Cables, & Isolator
33***30Kit, Battery Isolator, 11091
33***33Battery, Cables, Iveco 12v1
33***50Battery, Gel Type1
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Z66-3-1 Battery, Cables, & Isolation Kit
33***30Kit, Battery Isolator, 11091
33***46Battery, Cables1
70***67Battery, Gel Type1
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Z66-2-1 Battery, Cables
33***43Battery, Cables1
33***50Battery, Gel Type1
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Z66-5-1 Battery, Cables, & Isolation Kit
33***30Kit, Battery Isolator, 11091
33***44Battery, Cables1
70***67Battery, Gel Type1
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Z66-4-1 Battery, Cables, & Isolation Kit
33***30Kit, Battery Isolator, 11091
33***31Battery, Cables, Iveco 200kva1
70***67Battery, Gel Type1
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G144X(JCB GENERATOR) serial number reference

Locate the machine identification plate on the generator frame or canopy. Verify the serial number falls within the 01650000 to 01699999 range for the G144X model. Confirm applicability with a JCB dealer.

PrefixIdentifies
01650000-01699999G144X generator set (Iveco engine, 50Hz and 60Hz variants)

Frequently asked questions

What engine does the JCB G144X use?

The JCB G144X uses an Iveco N67 TM2A 6-cylinder liquid-cooled diesel engine with a displacement of 6.7 liters.

What is the operating weight of the JCB G144X?

The operating weight of the JCB G144X in open configuration is 1625 kg.

What model replaced the JCB G144X?

The G144X is part of the G144X/G144QX series, which was succeeded by the G144XQ and G160RX models in the JCB generator lineup.

What G144X(JCB GENERATOR) owners discuss

What engine manufacturer and specific model family is used in the JCB G144X generator set?
The JCB G144X generator set utilizes an IVECO engine. Manufacturer power product specifications list IVECO as the engine make for the G144X, G144QX, G175X, G175QX, G220X, and G220QX models in open and canopy configurations.
What is the prime power (PRP) rating at 50Hz for the JCB G144X generator?
The prime power rating at 50Hz and 400V for the JCB G144X is 131 kVA. This rating applies to the supply of continuous electrical power at variable load with a 70% load factor.
What are the common electrical control panel configurations for the JCB G144X generator?
The JCB G144X generator set is equipped with CP1 and CP2 digital control panels as standard. An ATP1 digital control panel is available as an optional configuration. These panels manage engine operation, generator output, and system diagnostics.
What is the applicable serial number range for the JCB G144X generator set operator's manual?
The operator's manual for the JCB G144X generator set covers machines with serial numbers ranging from OEM part reference to OEM part reference. This range applies to the G130RX, G144X, G144QX, G160RX, G175X, G175QX, G200RX, G220X, and G220QX models.
What are the key maintenance and fluid recommendations for the JCB G144X power system?
Maintenance for the JCB G144X includes routine engine maintenance, alternator inspection, and checking the CP1/CP2 or ATP1 control panels. JCB recommends using genuine JCB service fluids, including JCB Super Universal Agricultural oil for engines and transmissions, and verified JCB hydraulic oils. Engine coolant must be changed at recommended intervals to prevent silicate separation, which causes brown sludge in the expansion bottle.
What should be checked when buying a used JCB G144X generator set?
When purchasing a used JCB G144X, verify the serial number falls within the OEM part reference to OEM part reference range to ensure correct manual and parts availability. Inspect the IVECO engine for signs of excessive smoke or knocking, check the alternator for wear, and test the CP1/CP2 or ATP1 digital control panels for proper communication and fault code storage. Ensure the cooling system is free of silicate sludge and that all wiring diagrams match the specific unit's configuration.
What is the standard reference condition for the prime power rating of the JCB G144X?
All ratings for the JCB G144X are to standard reference conditions. Prime power is defined as the supply of continuous electrical power at variable load with a 70% load factor in lieu of commercially purchased power, with no limitation on the annual hours of operation.

Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.

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