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Jcb G110(JCB GENERATOR)

Maintenance schedule, common problems & OEM parts breakdown

The JCB G110 is a diesel-powered generator set engineered for prime and standby power applications. It utilizes JCB Dieselmax or EcoMAX industrial engines, which are DPF-free and designed for high efficiency. The unit features a robust, corrosion-resistant canopy and a compact footprint to save floor space. Configurations include open-type and canopied units with varying prime power ratings. The machine is built for harsh environments with excellent UV resistance and heavy-duty structural integrity.

Across the JCB generator range, the shift to DPF-free EcoMAX and Dieselmax engines has reduced servicing complexity and costs compared to Tier 4 Final units that require regeneration. The G110 matters in the used market because its simple, heavy-duty powertrain avoids the expensive emissions components found in newer competitors. Its compact design and reliable JCB engine heritage make it a sought-after unit for rental fleets and industrial backup power where uptime is critical.

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 G110(JCB GENERATOR) specifications

Engine

ModelKohler CV730S
Type4-cycle, gasoline, OHV, air-cooled, V-twin
Displacement725 cc (44.2 cu in)
Bore x Stroke83 mm x 67 mm (3.3 in x 2.6 in)
Gross/Net Power18.6 kW (25 hp)
Emissions TierNot documented for this exact serial range — verify with your dealer

Weights

Operating Weight263 kg (579 lb)
Shipping WeightNot documented for this exact serial range — verify with your dealer
Ground PressureNot documented for this exact serial range — verify with your dealer

Dimensions

Transport Length181 cm (71.25 in)
Transport Width95 cm (37.5 in)
Transport Height119 cm (47 in)
WheelbaseNot documented for this exact serial range — verify with your dealer
Ground ClearanceNot documented for this exact serial range — verify with your dealer

Performance

Travel SpeedForward: 9.7 km/h (6 mph); Reverse: 4.8 km/h (3 mph)
GradeabilityNot documented for this exact serial range — verify with your dealer
Lift/Dig/DumpNot documented for this exact serial range — verify with your dealer
Drawbar PullNot documented for this exact serial range — verify with your dealer

Service capacities (summary)

Fuel Tank7.9 L (2.1 gal)
Hydraulic SystemNot documented for this exact serial range — verify with your dealer
Engine Oil1.9 L (2 qt) with oil filter
Cooling SystemNot documented for this exact serial range — verify with your dealer

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

Jcb G110(JCB GENERATOR) maintenance schedule

Service intervalTasks
Every 10 h
  • Check engine oil level via dipstick.
  • Check hydraulic oil level via sight gauge.
  • Check coolant level in expansion tank.
  • Check fuel level and drain water separator.
  • Inspect for fluid leaks around engine and chassis.
  • Inspect generator bearings and belt tension.
Every 500 h
  • Change engine oil and replace oil filter.
  • Replace primary and secondary fuel filters.
  • Replace hydraulic return filter.
  • Inspect and clean air filter element.
  • Grease all pivot points and bearings.
  • Take oil samples from engine, hydraulic, and fuel systems.
Every 1,000 h
  • Replace engine coolant and flush system.
  • Change transmission oil and filter.
  • Change front and rear axle oil.
  • Perform full ECM diagnostic scan.
  • Inspect turbocharger shaft play and boots.
  • Load test alternator and starter.
Every 2,000 h
  • Change hydraulic oil and clean tank.
  • Inspect structural components for cracks.
  • Measure swing ring play.
  • Service brake discs and immersed brakes.
  • Check injector spray patterns.
  • Service cab HVAC and cabin filter.

Servicing the G110(JCB GENERATOR) beyond the schedule

Predictive Maintenance & Fluid Analysis

Take oil samples from the engine, hydraulic system, and fuel system at the 500-hour interval to establish a baseline. Monitor hydraulic oil for silicate separation and engine coolant for brown sludge, which indicates silicate breakdown. Use JCB Engine Oil UP or equivalent 15W-40 diesel oil meeting API specs. Check DEF levels if the specific G110 variant is equipped with a DEF tank. Regular fluid analysis prevents catastrophic bearing and seal failures by detecting contamination early.

Corrective & Common Repairs

Address dirty fuel as the primary cause of injector failure on Dieselmax and EcoMAX engines by replacing primary and secondary fuel filters at 500 hours. Inspect turbocharger shaft play and charge cooler boot condition at 1000 hours. Check alternator and starter load tests to catch dying electrical components. Replace hydraulic return filters and inspect magnets for metallic debris. Maintain belt tension on the alternator, A/C, and fan belts to prevent drive failure.

Overhaul & Rebuild Points

The 2000-hour service is the critical deep-service interval for the G110 generator. Drain and clean the hydraulic tank, then refill with JCB-spec hydraulic oil. Inspect the boom, arm, and chassis for unauthorized welding or structural cracks. Measure swing ring play using dial indicators on JS-series variants. Service brake discs and immersed brakes. Check injector spray patterns via diagnostic tool and replace as required to maintain engine efficiency.

Seasonal & Environment Servicing

In cold climates, use JCB Engine Oil UP 5W30 for temperatures down to -30°C or 5W40 for -30°C to 46°C. In warmer conditions, use 10W30 oil. Ensure coolant mixture is at 55% antifreeze for freeze protection down to -36°C. Inspect the cab HVAC system, including A/C pressure and evaporator condition, to maintain operator comfort. Check fuel tank capacity and ensure the unit is protected from extreme UV exposure to preserve canopy aesthetics and integrity.

G110(JCB GENERATOR) common service parts

Part numberPart
32/925879Filter, FuelCheck fitment →
32/925884Element, Fuel FilterCheck fitment →
32/925878Element, Fuel FilterCheck fitment →
32/925900Filter, Fuel AssemblyCheck fitment →
32/925901Head, Fuel FilterCheck fitment →

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

G110(JCB GENERATOR) fault codes & troubleshooting

CodeMeaningLikely causeWhat to do
P0087Fuel rail/system pressure too lowClogged fuel filters, failing lift pump, or restricted fuel lineCheck fuel filter condition and fuel pump operation
P0117Engine coolant temperature sensor circuit low voltageFaulty coolant temperature sensor, shorted wiring, or poor groundInspect sensor wiring harness and connector for corrosion or damage
P0521Engine oil pressure sensor range/performance issueFaulty oil pressure sensor or low oil levelVerify oil level and test sensor resistance with a multimeter
P0200Injector circuit openBroken wire, loose connector, or failed injector solenoidVisually inspect injector wiring harness and connectors for damage
P0335Crankshaft Position Sensor 'A' Circuit No SignalFailed crank sensor, damaged reluctor ring, or wiring faultCheck sensor air gap and wiring continuity
U0100Lost communication with Engine Control Module (ECM)Poor battery voltage, loose ground strap, or CAN bus faultCheck battery voltage and clean/tighten all ground connections
P0112Intake air temperature sensor malfunction (low voltage error)Short to ground in IAT sensor circuit or faulty sensorInspect sensor connector for 'green death' corrosion and check wiring

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

G110(JCB GENERATOR) attachments & work tools

Generators

JCB manufactures diesel generator sets, including models such as the G60QI and G80QI, which are distinct from the G110 designation found in the source text's machine specifications. The G60QI series features a prime power rating of 58.5 kVA, a dry weight of 1,700 kg, and a fuel tank capacity of 186 L. Other models in the range offer prime power ratings up to 100 kVA with engine outputs between 92 kW and 182 kW. These units are designed for prime and standby applications and include LiveLink telematics for monitoring fuel theft, service reminders, and temperature fluctuations.

Hydraulic Breakers

JCB offers an OEM hydraulic breaker range designed for excavators and backhoe loaders, which are the primary carriers for such attachments. These breakers are engineered to work in harmony with JCB machines to reduce demolition and trenching time. The attachment requires an integrated hydraulic system connection to the carrier machine to function.

Quickhitches

Quickhitch systems are available to dramatically reduce attachment swap time and improve safety for operators handling multiple tools. These couplers allow for rapid connection and disconnection of work tools such as buckets and breakers. The system is designed to ensure secure attachment while minimizing downtime on the job site.

Tilt Rotators

Tilt rotators provide multi-directional movement, enabling attachments to tilt up to 45 degrees and rotate 360 degrees. This accessory allows for complex tasks like grading, trenching on slopes, and material handling from difficult angles without repositioning the machine. It features an integrated hydraulic system that connects seamlessly to the carrier machine.

Buckets

A variety of buckets are available to improve productivity, digging efficiency, and material retention. Options include Deep Profile, Ditch Maintenance, Grading, Heavy Duty, Jaw, Ribbed, Tapered Ditching, and Tilting Grading buckets. These tools are designed for specific job site conditions and material types.

Lifting Equipment

JCB provides lifting equipment for the safe handling of suspended loads, with capacities ranging from 0.15 to 4 tonnes. The range features a compact design to improve operator visibility and utilizes a Q-Fit pick-up system for easy attachment to the machine. These units are designed for effecting load handling in various applications.

Forks and Fork Frames

Forks and fork frames are available for material handling tasks, including single and twin bale spikes for agricultural use. High capacity grass forks are designed for handling large volumes of grass for silage work. Grain shovels are also available with multiple attachment pickup options to suit different machine needs.

Earth Drills/Augers

Earth drills and augers are listed among the available attachments for JCB machines. These tools are used for drilling applications and require hydraulic power from the carrier machine. Specific sizes and capacities vary by configuration and series.

Grabs and Grapples

Power Grabs and shear grabs are available for handling bulk materials and vegetation. The shear grab features hardox or forged tines for cutting grass and maize silage cleanly. These attachments enhance the versatility of the machine for agricultural and waste management tasks.

Sweepers

Sweeper collectors are available as attachments for maintaining job sites and public areas. These units are designed to work with JCB carriers to provide efficient cleaning solutions. Specific models and capacities are available to meet different operational requirements.

All G110(JCB GENERATOR) assemblies by section

Every catalogued assembly group for the Jcb G110(JCB GENERATOR). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Z Generator Sets 100/200 Series
Z0-12-1 Generator Set, G220 200kva, 50hz 400v Prime
Z0-1-1 Generator Set, G100 90kva, 50hz 380/415v Prime
Z0-13-1 Generator Set, G220q 200kva, 50hz 400v Prime
Z0-2-1 Generator Set, G100q 90kva, 50hz 380/415v Prime
Z0-5-1 Generator Set, G110q 100kva, 50hz 380/415v Prime
Z0-14-1 Generator Set, G160r
Z0-9-1 Generator Set, G175 160kva, 50hz 400v Prime
Z0-6-1 Generator Set, G130r 130kva, 50hz 400v Prime
Z0-7-1 Generator Set, G144 130kva, 50hz 400v Prime
Z0-8-1 Generator Set, G144q 130kva, 50hz 400v Prime
Z0-3-1 Generator Set, G100r 100kva, 50hz 380/415v Prime
Z0-11-1 Generator Set, G200r 200kva, 50hz 400v Prime
Z0-4-1 Generator Set, G110 100kva, 50hz 380/415v Prime
Z0-10-1 Generator Set, G175q 160kva, 50hz 400v Prime
Z1-1-1 Engine Assembly, 420 61070 Dsrg, 79/1500
Z1-11-1 Engine Assembly, 620 61100 Dsrg, 116/1500
Z1-13-1 Engine Assembly, 634 61102 Dsrag, 182/1500
Z1-2-1 Engine Assembly, 420 61071 Dsrag, 95/1500
Z1-12-1 Engine Assembly, 620 61101 Dsrag, 147/1500
Z2-1-1 Service Tools
89***15Tool, Rear Seal Installer1
89***50Tool, Front Seal Installer1
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Z4-11-1 Gasket Set Top, 620 Dsrg/620 Dsrag
Z4-12-1 Gasket Set Overhaul, 620 Dsrg/620 Dsrag, 634 Dsrag
Z4-2-1 Gasket Set, Overhaul, 420 Dsrg/420 Dsrag
Z4-1-1 Gasket Set Top, 420 Dsrg/420 Dsrag
Z5-11-1 Kit-Engine Overhaul, 620 Dsrg/620 Dsrag, 634 Dsrag
02***04Liner, Cylinder6
02***71Piston, Assembly6
02***75Bearing, Big-End6
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Z5-1-1 Kit-Engine Overhaul, 420 Dsrg/420 Dsrag
02***04Liner, Cylinder4
02***71Piston, Assembly4
02***75Bearing, Big-End4
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Z6-2-1 Fuel Filter, 420 Dsrg/420 Dsrag
02***77Washer, Sealing2
32***79Filter, Fuel1
32***80Screw1
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Z6-1-1 Filter Fuel Sediment, 420 Dsrg/420 Dsrag
32***77Filter, Head1
32***78Element, Fuel Filter1
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Z6-12-1 Fuel Filter, 620 Dsrg/620 Dsrag, 634 Dsrag
02***77Washer, Sealing2
32***80Screw2
32***81Washer2
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Z6-11-1 Filter Fuel Sediment, 620 Dsrg/620 Dsrag, 634 Dsrag
32***98Filter, Fuel Assembly1
32***99Element, Fuel Filter1
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Z6-3-1 Filter, Oil, 420 Dsrg/420 Dsrag
Z6-13-1 Filter, Oil, 620 Dsrg/620 Dsrag, 634 Dsrag
Z8-12-1 Front End Drive, 620 Dsrg/620 Dsrag, 634 Dsrag
02***18Nut1
02***20Pulley, Water Pump1
02***24Screw, M10x306
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Z8-2-1 Front End Drive, 420 Dsrg/420 Dsrag
02***39Sleeve1
02***40Pulley, Water Pump1
02***41Screw1
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Z8-1-1 Crankshaft Pulley, 420 Dsrg/420 Dsrag
02***84Pulley, V Belt1
02***85Nut1
02***86Screw, M8x356
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Z8-13-1 Crankshaft Pulley, 634 Dsrag
02***86Screw, M8x356
02***92Screw, M8x253
02***37Damper, Crankshaft Vibration1
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Z8-11-1 Crankshaft Pulley, 620 Dsrg/620 Dsrag
02***86Screw, M8x356
02***92Screw, M8x253
02***38Nut1
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Z9-12-1 Starter Motor, 620 Dsrg/620 Dsrag, 634 Dsrag
71***26Motor, Starter1
71***27Holder, Brush Assembly1
71***28Kit-Brush1
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Z9-1-1 Starter Motor, 420 Dsrg/420 Dsrag
71***41Kit-Lever, Solenoid Engaging1
71***42Kit-Sundry Parts1
71***44Motor, Starter1
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Z9-11-1 Starter Motor, 620 Dsrg/620 Dsrag, 634 Dsrag
71***41Kit-Lever, Solenoid Engaging1
71***42Kit-Sundry Parts1
71***44Motor, Starter1
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Z9-2-1 Starter Motor, 420 Dsrg/420 Dsrag
71***26Motor, Starter1
71***27Holder, Brush Assembly1
71***28Kit-Brush1
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Z10-2-1 Alternator Mountings, 420 Dsrg/420 Dsrag
02***27Screw1
02***31Screw1
02***42Nut, M81
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Z10-12-1 Alternator Mountings, 620 Dsrg/620 Dsrag, 634 Dsrag
02***42Nut, M81
02***49Washer2
02***43Screw, M8x302
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Z10-11-1 Alternator, 620 Dsrg/620 Dsrag, 634 Dsrag
02***60Pulley, Alternator1
71***18Alternator, 12v, 65amp; Use Existing Pulley Or Order Item Number 8. This Unit Is Supplied As Standard With Singlegroove Pulley, Application Requires Twin., Alternator, 12v, 65amp1
71***20Fan1
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Z10-1-1 Alternator, 420 Dsrg/420 Dsrag
71***18Alternator, 12v, 65amp; Use Existing Pulley Or Order Item Number 8. This Unit Is Supplied As Standard With Singlegroove Pulley, Application Requires Twin., Alternator, 12v, 65amp1
71***19Pulley1
71***20Fan1
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Z12-11-3 Fuel Pipework, High Pressure, 634 Dsrag
02***21Washer, Sealing1
02***56Bolt, Banjo4
02***57Washer, Sealing16
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Z12-3-1 Fuel Pipework, Low Pressure, 420 Dsrg/420 Dsrag
02***11Washer, Sealing2
02***21Washer, Sealing1
02***31Screw2
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Z12-11-1 Fuel Pipework, High Pressure, 620 Dsrg
02***21Washer, Sealing1
02***56Bolt, Banjo4
02***57Washer, Sealing16
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Z12-12-1 Fuel Pipework, Low Pressure, Pre-Filter, 620 Dsrg/620 Dsrag/634 Dsrag
02***27Screw2
02***42Nut, M82
02***38Washer, Sealing5
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Z12-13-2 Fuel Pipework, Low Pressure, 634 Dsrag
02***11Washer, Sealing2
02***21Washer, Sealing2
02***46Screw, M8x351
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Z12-13-1 Fuel Pipework, Low Pressure, 620 Dsrg/620 Dsrag
02***11Washer, Sealing2
02***21Washer, Sealing2
02***46Screw, M8x351
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Z12-2-1 Fuel Pipework, Low Pressure, Pre-Filter, 420 Dsrg/420 Dsrag
32***39Bolt, Banjo M122
32***71G.A, Ga Fuel Pipes(Hp/Lp), Genset0
32***33Ring, Snap1
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Z12-1-1 Fuel Pipework, High Pressure, 420 Dsrg/420 Dsrag
32***11Clip, F.I.P 2 Way4
32***59Pipe, Fuel, Injector 1 & 2, Assembly1
32***60Pipe, Fuel Injector 3 & 4, Assembly1
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Z12-11-2 Fuel Pipework, High Pressure, 620 Dsrag
02***21Washer, Sealing1
02***56Bolt, Banjo4
02***57Washer, Sealing16
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Z13-11-1 Fuel Injector, 620 61100 Dsrg, 116/1500
02***42Nut, M812
17***02Washer6
17***03Ring, Rubber6
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Z13-14-1 Fuel Injector, 634 61102 Dsrag
02***42Nut, M812
17***00Injector, Assembly6
17***01Nozzle, Injector1
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Z13-12-1 Fuel Injector, 620 61101 Dsrag, 147/1500
02***42Nut, M812
17***02Washer6
17***03Ring, Rubber6
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Z13-1-1 Fuel Injector, 420 61070 Dsrg, 420 61071 Dsrag
02***42Nut, M88
17***00Injector, Assembly4
17***01Nozzle, Injector1
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Z14-1-1 Fuel Lift Pump, 420 Dsrg/420 Dsrag
02***91Washer2
02***92Screw, M8x254
17***00Pump, Fuel Lift1
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Z14-11-1 Fuel Lift Pump, 620 Dsrg/620 Dsrag, 634 Dsrag
02***91Washer2
02***92Screw, M8x254
17***00Pump, Fuel Lift1
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Z15-12-1 Fuel Injection Pump, 620 61101 Dsrag, 147/1500
02***42Nut, M82
02***49Washer3
02***47O Ring1
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Z15-13-1 Fuel Injection Pump, 634 61102 Dsrag, 182/1500
02***42Nut, M82
02***49Washer3
02***47O Ring1
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Z15-1-1 Fuel Injection Pump, 420 61070 Dsrg, 79/1500
02***42Nut, M82
02***47O Ring1
02***48Nut1
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Z15-11-1 Fuel Injection Pump, 620 61100 Dsrg, 116/1500
02***42Nut, M82
02***49Washer3
02***47O Ring1
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Z15-2-1 Fuel Injection Pump, 420 61071 Dsrag, 95/1500
02***42Nut, M82
02***47O Ring1
02***48Nut1
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Z16-1-1 Water Pump, 420 Dsrg/420 Dsrag
02***13Plug2
02***14Washer, Sealing2
02***15Pump, Water Assembly1
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Z16-11-1 Water Pump, 620 Dsrg/620 Dsrag, 634 Dsrag
02***13Plug2
02***14Washer, Sealing2
02***31Screw2
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Z18-11-1 Thermostat & Housing, 620 Dsrg/620 Dsrag
02***13Plug1
02***14Washer, Sealing1
02***50Screw, M8x504
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Z18-12-1 Thermostat & Housing, 634 Dsrag
02***50Screw, M8x504
02***73Washer4
02***34Gasket1
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Z18-1-1 Thermostat & Housing, 420 Dsrg/420 Dsrag
02***13Plug1
02***14Washer, Sealing1
02***27Screw1
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Z19-11-1 Rocker Cover, 620 Dsrg/620 Dsrag, 634 Dsrag
02***14Screw4
02***15Washer4
02***16Washer, Rubber4
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Z19-1-1 Rocker Cover, 420 Dsrg/420 Dsrag
02***12Cover, Rocker1
02***13Gasket1
02***14Screw4
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Z20-1-1 Rocker Shaft, 420 Dsrg/420 Dsrag
02***87Nut8
02***88Screw, Adjusting8
02***89Plug2
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Z20-11-1 Rocker Shaft, 620 Dsrg/620 Dsrag, 634 Dsrag
02***87Nut6
02***88Screw, Adjusting6
02***89Plug2
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Z21-1-1 Valves & Push-Rods, 420 Dsrg/420 Dsrag
Z21-11-1 Valves & Push-Rods, 620 Dsrg/620 Dsrag, 634 Dsrag
Z22-12-1 Turbocharger, 634 61102 Dsrag
02***72Gasket1
02***73Gasket1
02***74Gasket1
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Z22-2-1 Turbocharger, 420 61071 Dsrag, 95/1500
02***42Nut, M84
02***47Gasket1
02***62Flange1
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Z22-11-1 Turbocharger, 620 61100 Dsrg, 620 61101 Dsrag
02***72Gasket1
02***73Gasket1
02***74Gasket1
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Z22-1-1 Turbocharger, 420 61070 Dsrg, 79/1500
02***42Nut, M84
02***47Gasket1
02***50Turbocharger, 79kw Engine1
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Z23-12-1 Turbo Pipework, 634 Dsrag
02***19Washer, Sealing1
02***52Connector1
02***82Screw, M8x202
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Z23-11-1 Turbo Pipework, 620 Dsrg/620 Dsrag
02***19Washer, Sealing1
02***52Connector1
02***59Hose1
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Z23-1-1 Turbo Pipework, 420 Dsrg/420 Dsrag
02***19Washer, Sealing1
02***21Washer, Sealing2
02***48Pipe1
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Z25-11-1 Induction Manifold, 620 Dsrg/620 Dsrag, 634 Dsrag
02***48Screw, M8x605
02***51Screw, M8x657
02***44Screw, M8x902
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Z25-1-1 Induction Manifold, 420 Dsrg/420 Dsrag
02***39Gasket1
02***41Screw, M8x708
02***42Screw, M6x251
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Z26-1-1 Exhaust Manifold, 420 Dsrg/420 Dsrag
02***38Screw, M10x1008
02***40Manifold, Exhaust1
02***45Manifold, Intake4
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Z26-11-1 Exhaust Manifold, 620 Dsrg/620 Dsrag, 634 Dsrag
02***46Cover1
02***61Nut12
02***62Stud, M10x10012
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Z27-11-1 Cylinder Head, 620 Dsrg/620 Dsrag, 634 Dsrag
02***13Plug1
02***14Washer, Sealing2
02***25Connector1
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Z27-1-1 Cylinder Head, 420 Dsrg/420 Dsrag
02***13Plug1
02***99Cotter16
02***01Plate, Spring8
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Z28-11-1 Lifting Brackets, 620 Dsrg/620 Dsrag, 634 Dsrag
02***57Nut, M102
02***20Screw, M10x252
02***21Plate, Engine Lifting2
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Z28-1-1 Lifting Brackets, 420 Dsrg/420 Dsrag
02***20Screw, M10x254
02***21Plate, Engine Lifting2
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Z29-1-1 Oil Cooler, 420 Dsrg/420 Dsrag
02***14Washer, Sealing1
02***42Screw, M6x251
02***54Clamp4
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Z29-11-1 Oil Cooler, 620 Dsrg/620 Dsrag, 634 Dsrag
02***14Washer, Sealing1
02***51Screw, M8x651
02***54Clamp4
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Z30-11-1 Oil Level Dipstick, 620 Dsrg/620 Dsrag
Z30-1-1 Oil Level Dipstick, 420 Dsrg/420 Dsrag
Z30-12-1 Oil Level Dipstick, 634 Dsrag
Z31-1-1 Oil Sump, 420 Dsrg/420 Dsrag
02***42Nut, M81
02***19Washer, Sealing1
02***70Sump1
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Z31-11-1 Oil Sump, 620 Dsrg/620 Dsrag, 634 Dsrag
02***18Plug1
02***53Screw, M8x161
02***73Washer4
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Z32-12-1 Oil Relief Valve, 620 Dsrg/620 Dsrag, 634 Dsrag
02***82Screw, M8x202
02***09Seat, Valve1
02***12Gasket1
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Z32-2-1 Oil Relief Valve, 420 Dsrg/420 Dsrag
02***82Screw, M8x202
02***09Seat, Valve1
02***10Valve, Control1
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Z32-1-1 Oil Pump, 420 Dsrg/420 Dsrag
02***80Pump, Oil Assembly1
02***83Nut, M101
02***84Washer1
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Z32-11-1 Oil Pump, 620 Dsrg/620 Dsrag, 634 Dsrag
02***83Nut, M101
02***84Washer1
02***85Gear1
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Z33-11-1 Flywheel Assembly, 620 Dsrg/620 Dsrag, 634 Dsrag
02***60Flywheel1
02***62Gear, Starter Ring1
02***65Screw8
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Z33-1-1 Flywheel Assembly, 420 Dsrg/420 Dsrag
02***60Flywheel1
02***62Gear, Starter Ring1
02***65Screw8
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Z34-1-1 Flywheel Housing, 420 Dsrg/420 Dsrag
02***13Plug2
02***29Pin2
02***54Seal, Oil1
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Z34-11-1 Flywheel Housing, 620 Dsrg/620 Dsrag, 634 Dsrag
02***13Plug2
02***29Pin2
02***54Seal, Oil1
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Z35-11-1 Camshaft/Idler Gear, 620 Dsrg/620 Dsrag, 634 Dsrag
02***32Shaft1
02***33Gear1
02***34Bush1
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Z35-1-1 Camshaft/Idler Gear, 420 Dsrg/420 Dsrag
02***32Shaft1
02***33Gear1
02***34Bush1
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Z36-12-1 Timing Case & Covers, 634 Dsrag
02***07Plug1
02***26Gasket1
02***27Screw12
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Z36-1-1 Timing Case & Covers, 420 Dsrg/420 Dsrag
02***07Plug1
02***26Gasket1
02***27Screw12
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Z36-11-1 Timing Case & Covers, 620 Dsrg/620 Dsrag
02***07Plug1
02***26Gasket1
02***27Screw12
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Z37-11-1 Piston & Con-Rod, Assemblies, 620 Dsrg/620 Dsrag
02***71Piston, Assembly4
02***72Kit-Piston Ring1
02***73Screw2
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Z37-1-1 Piston & Con-Rod, Assemblies, 420 Dsrg/420 Dsrag
02***71Piston, Assembly4
02***72Kit-Piston Ring1
02***73Screw2
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Z37-12-1 Piston & Con-Rod, Assemblies, 634 Dsrag
02***72Kit-Piston Ring1
02***73Screw2
02***74Bush, Small-End1
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Z38-11-1 Crankshaft Assembly, 620 Dsrg/620 Dsrag
02***69Key1
02***76Kit-Main Bearing5
02***77Kit-Thrust Washer2
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Z38-12-1 Crankshaft Assembly, 634 Dsrag
02***69Key1
02***76Kit-Main Bearing5
02***77Kit-Thrust Washer2
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Z38-1-1 Crankshaft Assembly, 420 Dsrg/420 Dsrag
02***69Key1
02***70Crankshaft1
02***76Kit-Main Bearing5
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Z39-1-1 Cylinder Block, 420 Dsrg/420 Dsrag
02***00Block, Cylinder Assembly1
02***01Bush1
02***02Sleeve, Guide10
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Z39-11-1 Cylinder Block, 620 Dsrg/620 Dsrag
02***01Bush6
02***02Sleeve, Guide14
02***03Screw14
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Z39-12-1 Cylinder Block, 634 Dsrag
02***01Bush6
02***02Sleeve, Guide14
02***03Screw14
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Z43-1-1 Air Filter, Installation
32***04Valve, Dust1
32***10Clip3
32***85Filter Aiir Assembly1
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Z43-11-1 Air Filter, Installation
32***00Band, Mounting1
32***06Valve, Dust1
32***07Clip1
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Z45-1-1 Exhaust Silencer, Open Build
02***79Gasket1
13***7DCapscrew6
32***60Pipe, Exhaust Outlet Elbow1
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Z45-11-1 Exhaust System, Canopy Build
02***79Gasket1
13***5ZScrew, M10 X 20mm Long; Use With Single Piece Casing. To Gearbox Number 445/143/831 Or 445/144/455, Screw, M10 X 20mm Long4
13***7DCapscrew6
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Z46-11-1 Radiator & Fittings, 620dsrg
13***5DSetscrew, M6 X 20mm Long0
13***3DNut, M6 Lock0
14***6DWasher, M6 Plain0
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Z47-11-1 Cooler Assembly, 620dsrag
13***5DSetscrew, M6 X 20mm Long24
13***7DSetscrew, M8x254
13***3DNut, M6 Lock24
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Z47-12-1 Cooler Assembly, 634dsrag
30***85Cap, Radiator Pressure1
30***05Guard, Fan, Left Hand1
30***06Guard, Fan, Right Hand1
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Z48-21-1 Radiator, Coolant Drain
32***70Valve, 1/2"Bsp Female, 1/2"Bsp Male1
32***71Adapter, 1/2"Bsp M 1/2"Tail1
32***72Hose, Fuel 1/2"Bore1
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Z48-12-1 Radiator/Cooler, Hose & Pipework, 620dsrag
30***79Clip1
30***93Clip4
30***94Clip, 40 - 603
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Z48-11-1 Radiator, Hose & Pipework, 620dsrg
30***79Clip1
30***93Clip4
30***94Clip, 40 - 603
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Z48-13-1 Radiator/Cooler, Hose & Pipework, 634dsrag
30***79Clip1
30***93Clip4
30***94Clip, 40 - 603
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Z49-1-1 Cooling Fan & Spacer
Z49-3-1 Cooling Fan & Spacer
Z49-2-1 Cooling Fan & Spacer
Z50-1-1 Fuel Pipes, Fuel Tank To Filter
32***16Hose, Fuel Supply2
32***68Clip, 6mm Hose4
32***75Adapter, 3/8" Bsp F 3/8" Tail1
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Z51-11-1 Fuel Filter, Sediment ( Racor )
32***11Filter, Fuel, Assembly1
32***12Element, Fuel Filter1
32***41O Ring1
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Z57-1-1 Engine Oil Drain
14***19Seal, Dowty1
22***03Clip, Jubilee2
32***71Adapter, 1/2"Bsp M 1/2"Tail2
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Z60-5-1 Lifting Bracket, (Optional)
13***2DSetscrew, M16 X 50mm8
13***3DNut, M168
14***1DWasher, M1616
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Z60-1-1 Base & Fittings
13***8DSetscrew, M12 X 300
13***3DNut, M120
14***9DWasher, M120
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Z60-11-1 Fuel Tank
32***18Cap, Fuel Tank1
32***32Guage Fuel1
32***77Plug, 1.5"Bsp5
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Z60-2-1 Base & Fittings
13***8DSetscrew, M12 X 300
13***3DNut, M120
14***9DWasher, M120
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Z61-2-1 Canopy, Middle Section
13***5DSetscrew, M8x2084
14***7DWasher, M8 Plain84
14***7DWasher, M8 Spring84
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Z61-4-1 Canopy, Rear Section
13***5DSetscrew, M8x2020
14***7DWasher, M8 Plain20
14***7DWasher, M8 Spring20
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Z61-21-1 Canopy Soundproofing
32***39Kit-Panel, Soundproofing, Middle Section1
32***40Kit-Panel, Soundproofing, Front Section1
32***41Kit-Panel, Foil Backed, Rear Section1
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Z61-1-1 Canopy Assembly
32***80Canopy, Assembly1
32***81Canopy, Middle Section1
32***82Canopy, Front Section1
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Z61-3-1 Canopy, Front Section
13***5DSetscrew, M8x2012
14***7DWasher, M8 Plain12
14***7DWasher, M8 Spring12
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Z62-5-1 Alternator, Uci 274 F16
32***07Kit, Rectifier1
32***08Regulator, A.V.R Sx4601
32***09Bearing, Nde1
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Z62-3-1 Alternator, Uci 274f-16
32***08Regulator, A.V.R Sx4601
32***57Bearing, Nde1
32***99Kit-Rectifier, Service1
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Z62-6-1 Alternator, Uci 274 H16
32***07Kit, Rectifier1
32***08Regulator, A.V.R Sx4601
32***09Bearing, Nde1
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Z62-11-1 Alternator, Accessories
13***5DSetscrew, M6 X 20mm Long6
13***3DNut, M6 Lock6
14***6DWasher, M6 Plain12
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Z62-1-1 Alternator, Uci 274c-16
32***08Regulator, A.V.R Sx4601
32***57Bearing, Nde1
32***99Kit-Rectifier, Service1
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Z62-2-1 Alternator, Uci 274e-16
32***08Regulator, A.V.R Sx4601
32***57Bearing, Nde1
32***99Kit-Rectifier, Service1
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Z62-4-1 Alternator, Uci 274h-16
32***08Regulator, A.V.R Sx4601
32***57Bearing, Nde1
32***99Kit-Rectifier, Service1
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Z63-1-1 Control Box & Panel, Assemblies
13***1DScrew, Set M6x122
13***5DSetscrew, M8x208
14***6DWasher, M6 Plain2
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Z63-12-1 Control Unit, Box & Panel Assemblies
13***3DSetscrew4
13***5DSetscrew, M6 X 20mm Long4
14***6DWasher, M6 Plain8
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Z64-1-1 Circuit Breaker Box, Assembly
13***5DSetscrew, M6 X 20mm Long12
13***0DScrew, Set2
13***5DSetscrew, M8x2018
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Z64-12-1 Circuit, Breaker, Box Assembly
13***5DSetscrew, M6 X 20mm Long86
13***5DSetscrew, M8x2037
14***6DWasher, M6 Plain86
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Z64-11-1 Circuit, Breaker, Box Assembly
13***5DSetscrew, M6 X 20mm Long86
13***5DSetscrew, M8x2037
14***6DWasher, M6 Plain86
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Z65-1-1 Engine Electrics
13***8DSetscrew, M10 X 302
14***8DWasher, M102
14***8DWasher, Spring, M102
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Z65-11-1 Battery Installation
13***0DSetscrew, M10 X 40mm4
13***3DNut, Self Lock M104
14***8DWasher, M108
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Z65-2-1 Engine Speed Sensor

Frequently asked questions

What engine does the JCB G110 use?

The JCB G110 uses JCB Dieselmax or EcoMAX industrial diesel engines. These are DPF-free, heavy-duty engines designed for prime and standby power applications.

What is the operating weight of the JCB G110?

Operating weight varies by configuration. The JCB G110 generator set has a dry weight of approximately 1,550 kg (3,417 lb) for the 100 kVA variant. Other models in the range weigh up to 2,900 kg (6,393 lb).

What replaced the JCB G110?

The JCB G110 is part of the ongoing JCB Generator range. Successors and related models include the G60QI and G220SQS series, which feature LiveLink telematics and updated CPCB IV+ emissions compliance.

What G110(JCB GENERATOR) owners discuss

What engine family powers the JCB G110 generator range, and what are the common cold-starting quirks associated with it?
The JCB G110 generator range utilizes JCB G-Drive engines, which are OEM-ready power packs derived from the JCB 444 series. These engines rely on glow plugs for cold starting. A common operational quirk is hard starting in cold weather, typically indicating a failed glow plug or a faulty glow plug relay/timer preventing correct heating of the plugs. Starting problems are the single most common reason owners contact support for this engine family.
What are the known powertrain and hydraulic behaviors for JCB machinery with similar transmission architectures?
In JCB machinery with hydraulic shuttle transmissions, a known behavior is intermittent forward operation caused by electrical faults rather than mechanical failure. The forward/reverse lever operates microswitches that activate hydraulic solenoids on the transmission body. If the machine revs but does not move in forward while reverse works, the issue is often a failed forward microswitch or a short circuit in the direction solenoid wiring. Owners verify this by checking if the solenoid is energized when the lever is moved.
What undercarriage or wear patterns are typical for JCB compact equipment, and how does the G110 generator differ?
The JCB G110 is a stationary generator set and lacks an undercarriage, tracks, or tires. It is a compact, heavy-duty unit designed for prime and standby power applications. Unlike wheeled or tracked JCB excavators and loaders which suffer from undercarriage wear, the G110’s primary wear concerns are related to engine components, alternator brushes, and fuel system integrity. The G110 is noted for its robust structure and corrosion/UV resistance rather than mobility wear patterns.
What are the common electrical and sensor issues reported for JCB generators and heavy equipment?
Common electrical issues include AMF (Automatic Mains Failure) high-side driver faults, which can manifest as open circuits or short circuits to the battery. Sensor-related faults often involve water-in-fuel sensor feedback signal ADC faults, intake air pressure/temperature sensors, and MAF (Mass Air Flow) sensor low/high voltage faults. These errors typically trigger torque reduction or engine shutdown to protect the system.
What fluids and lubricants are specified for JCB machines, and are there specific recommendations for the G110 generator?
JCB specifies JCB Engine Oil UP (5W30, 5W40, or 10W30 depending on temperature) and JCB Hydraulic Fluid OP46 for their construction machinery. For the G110 generator range, specific fluid capacities and types are detailed in the technical specifications sheet, which includes DEF (Diesel Exhaust Fluid) and diesel fuel capacities. The generator units are designed to operate with JCB-branded lubricants to ensure compatibility with the G-Drive engine components.
What is the typical power output and configuration for the JCB G110 generator?
The JCB G110 generator is part of a range that includes models like the G60QI and G80QI. While specific G110 prime power ratings vary by configuration, the G60QI model provides 58.5 kVA prime power with an engine output of 92 kW. The G80QI model provides higher output with engine outputs ranging from 164 kW to 182 kW. These units are compact, dry-weighted (e.g., 1,550 kg to 1,700 kg for smaller units), and feature a 180 L to 186 L fuel tank capacity.
What should be checked when buying a used JCB generator (G110 or similar range)?
When inspecting a used JCB generator, verify the engine serial number to identify the specific 444 series variant and emissions tier (Tier 2 through T4 Final). Check the glow plug system for cold-start reliability. Inspect the AMF panel for error codes related to solenoids and sensors. Verify the condition of the fuel lift pump and filters, as fuel system faults are common. Ensure the telematics (LiveLink) are functional for monitoring fuel theft, service reminders, and temperature fluctuations. Have your dealer verify the engine serial number and emissions compliance before purchase.

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

Serial-range & configuration variants

This page covers the Jcb G110(JCB GENERATOR). Related factory variants of the same model family:

G110(JCB GENERATOR)G110(JCB GENERATOR)

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