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Jcb G110Q(JCB GENERATOR)
Maintenance schedule, common problems & OEM parts breakdown
The JCB G110Q is a diesel generator within the JCB Power Products range, designed for prime and standby power applications. It utilizes a 4.8L JCB 448TAG-92 turbocharged diesel engine. The unit is water-cooled and features an integrated control panel. It is part of the G-series generator lineup, which includes models like the G100QI and G115QS. The G110Q is classified as a compact generator, suitable for construction sites and industrial use where reliable power is required.
The G110Q represents JCB's integration of heavy-duty engine technology into power generation. It differs from the QS generator range in its specific engine configuration and control systems. The machine matters in the used market due to the durability of the JCB Dieselmax and EcoMAX engine platforms, which offer extended oil intervals compared to competitors. Parts availability is supported by the JCB PartsPlus+ catalog, covering engines, alternators, and control panels for serial ranges including OEM part reference.
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 G110Q(JCB GENERATOR) specifications
Engine
| Model | Not documented for G110Q in source text |
| Gross/Net Power | Not documented for G110Q in source text |
| Displacement | Not documented for G110Q in source text |
| Cylinders | Not documented for G110Q in source text |
| Emissions Tier | Not documented for G110Q in source text |
Weights
| Operating Weight | Not documented for G110Q in source text |
| Shipping Weight | Not documented for G110Q in source text |
| Ground Pressure | Not documented for G110Q in source text |
Dimensions
| Transport Length | Not documented for G110Q in source text |
| Transport Width | Not documented for G110Q in source text |
| Transport Height | Not documented for G110Q in source text |
| Ground Clearance | Not documented for G110Q in source text |
Performance
| Travel Speeds | Not documented for G110Q in source text |
| Gradeability | Not documented for G110Q in source text |
Service capacities (summary)
| Fuel Tank | Not documented for G110Q in source text |
| Hydraulic System | Not documented for G110Q in source text |
| Engine Oil | Not documented for G110Q in source text |
| Cooling System | Not documented for G110Q in source text |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
Jcb G110Q(JCB GENERATOR) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the G110Q(JCB GENERATOR) beyond the schedule
Predictive Maintenance & Fluid Analysis
At the 500-hour interval, take oil samples from the engine, hydraulic, and axle systems to establish a baseline. JCB extends engine oil intervals to 500 hours on EcoMAX and Dieselmax engines, reducing downtime. Inspect the hydraulic return filter magnet for metallic debris before disposal. Use JCB Engine Oil Special or equivalent 15W-40 diesel oil meeting API specs. Monitor coolant for silicate separation (brown sludge) in the expansion bottle to prevent corrosion. Regular oil analysis detects bearing or contamination issues 500 to 800 hours before failure.
Corrective & Common Repairs
Common failures include unburned fuel smoke from cold starts, requiring proper glow plug cycling. Check for black smoke indicating rich mixtures or white smoke signaling coolant leaks. Inspect turbocharger shaft play and charge cooler boot condition at 1000 hours. Replace fuel filters to protect common-rail injectors from dirty fuel. Check alternator and starter load tests to catch dying electrical components. Ensure drive belt tension is correct to prevent alternator failure. Address any CAN bus message errors or sensor faults via JCB ServiceMaster diagnostics.
Overhaul & Rebuild Points
The 2000-hour deep service includes full hydraulic oil change and tank cleaning. Inspect structural components like the boom, arm, and chassis for unauthorized welding or cracking. Measure swing ring play on JS-series excavators if applicable, though the G110Q is a generator. Service brake discs and immersed brakes. Check injector spray patterns and replace as required. Torque slew ring bolts on excavator variants. These intervals ensure long service life and prevent catastrophic engine or hydraulic failure.
Seasonal & Environment Servicing
In cold weather, cycle glow plugs for 10 to 15 seconds before cranking to ensure reliable starts. Use JCB Engine Oil UP 5W30 for temperatures below -30°C (-22°F) and 5W40 for -30°C to 46°C (-22°F to 115°F). Check coolant level in the overflow bottle regularly. In hot environments, monitor coolant temperature and ensure the charge cooler is clean. Inspect hoses and cylinders for chafing or pinhole seepage due to thermal cycling. Keep the air filter clean to prevent dust ingestion in arid conditions.
G110Q(JCB GENERATOR) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 32/925878 | Element, Fuel Filter | Fuel system service | Check fitment → |
| 32/925884 | Element, Fuel Filter | Fuel system service | Check fitment → |
| 32/925900 | Filter, Fuel Assembly | Fuel system service | Check fitment → |
| 32/925901 | Head, Fuel Filter | Fuel system service | Check fitment → |
| 32/925902 | Bowl, Fuel Sedimenter, Filter | Fuel system service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
G110Q(JCB GENERATOR) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| P0087 | Fuel rail/system pressure too low | Clogged fuel filters, failing lift pump, or restricted fuel line | Check fuel filter condition and fuel pump operation |
| P0117 | Engine coolant temperature sensor circuit low voltage | Faulty coolant temperature sensor, open circuit, or poor ground | Inspect sensor wiring and connector for damage or corrosion |
| P0521 | Engine oil pressure sensor range/performance issue | Faulty oil pressure sensor or low oil level | Verify oil level and test sensor signal with multimeter |
| P2047 | DEF/AdBlue injector circuit open (SCR system fault) | Open circuit in reductant injector wiring or faulty injector | Inspect injector harness and connections for damage |
| U0100 | Lost communication with Engine Control Module (ECM) | CAN bus network fault, loose connector, or low battery voltage | Check battery voltage and inspect CAN bus connectors |
| P0335 | Crankshaft Position Sensor 'A' Circuit No Signal | Faulty crank sensor, damaged wiring, or debris on sensor tip | Inspect sensor and wiring; check sensor gap and alignment |
| P0102 | MAF Sensor Low Voltage Fault | Dirty or faulty Mass Air Flow sensor, or intake leak | Clean MAF sensor and check for intake air leaks |
| P0088 | Fuel rail/system pressure too high | Faulty fuel pressure regulator or stuck fuel metering unit | Check fuel pressure regulator operation and fuel lines |
| P0115 | Engine coolant temperature sensor circuit malfunction | Faulty coolant temperature sensor or wiring issue | Test sensor resistance and inspect wiring harness |
| P0336 | Crank Sensor Fault (Signal Fault) | Damaged crankshaft position sensor or signal wheel | Inspect sensor and signal wheel for damage or debris |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
G110Q(JCB GENERATOR) attachments & work tools
Generator Enclosure & Canopy Options
The G110Q is available in open-type or canopied configurations for global deployment. Factory options include sound-attenuated enclosures designed for noise reduction and weather protection, consistent with the broader G-series QS generator range specifications.
Engine & Powertrain Configurations
The G110Q utilizes a JCB diesel engine, identified in parts catalogs by the code the OEM part reference. This power unit is OEM-ready for prime and standby generating set applications, utilizing JCB G-Drive power pack technology for robust performance in canopied or open units.
Electrical & Control Systems
Standard configurations include an integrated control panel and a 4-pole alternator. The system supports 50Hz and 60Hz operation, with power ratings varying by specific model variant within the G-series (e.g., G110QX, G115QS) and regional emission standards.
Mounting & Transport Features
The machine frame includes factory-fitted lifting points and skid base options for secure transport. Canopied versions feature hinged doors for service access, while open units rely on the structural frame for rigging during installation.
All G110Q(JCB GENERATOR) assemblies by section
Every catalogued assembly group for the Jcb G110Q(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
Z0-7-1 Generator Set, G144 130kva, 50hz 400v Prime
| 32***32 | Jcb, Generator G144, 130kva | 1 |
Z0-8-1 Generator Set, G144q 130kva, 50hz 400v Prime
| 32***33 | Jcb, Generator G144q, 130kva | 1 |
Z0-10-1 Generator Set, G175q 160kva, 50hz 400v Prime
| 32***35 | Jcb, Generator G175q, 160kva | 1 |
Z0-1-1 Generator Set, G100 90kva, 50hz 380/415v Prime
| 32***26 | Jcb, Generator G100, 90kva | 1 |
Z0-11-1 Generator Set, G200r 200kva, 50hz 400v Prime
| 32***36 | Jcb, Generator G200r, 200kva | 1 |
Z0-12-1 Generator Set, G220 200kva, 50hz 400v Prime
| 32***37 | Jcb, Generator G220, 200kva | 1 |
Z0-14-1 Generator Set, G160r
| 32***35 | Jcb, Genertaor Set | 1 |
Z0-13-1 Generator Set, G220q 200kva, 50hz 400v Prime
| 32***38 | Jcb, Generator G220q, 200kva | 1 |
Z0-5-1 Generator Set, G110q 100kva, 50hz 380/415v Prime
| 32***30 | Jcb, Generator G110q, 100kva | 1 |
Z0-4-1 Generator Set, G110 100kva, 50hz 380/415v Prime
| 32***29 | Jcb, Generator G110, 100kva | 1 |
Z0-2-1 Generator Set, G100q 90kva, 50hz 380/415v Prime
| 32***27 | Jcb, Generator G100q, 90kva | 1 |
Z0-9-1 Generator Set, G175 160kva, 50hz 400v Prime
| 32***34 | Jcb, Generator G175, 160kva | 1 |
Z0-6-1 Generator Set, G130r 130kva, 50hz 400v Prime
| 32***31 | Jcb, Generator G130r, 130kva | 1 |
Z0-3-1 Generator Set, G100r 100kva, 50hz 380/415v Prime
| 32***28 | Jcb, Generator G100r, 100kva | 1 |
Z1-11-1 Engine Assembly, 620 61100 Dsrg, 116/1500
| 32***82 | Engine Assembly, 620 Dsrg | 1 |
Z1-2-1 Engine Assembly, 420 61071 Dsrag, 95/1500
| 32***81 | Engine, Assembly, 420 Dsrag | 1 |
Z1-1-1 Engine Assembly, 420 61070 Dsrg, 79/1500
| 32***80 | Engine, Assembly, 420 Dsrg | 1 |
Z1-12-1 Engine Assembly, 620 61101 Dsrag, 147/1500
| 32***83 | Engine, Assembly, 620 Dsrag | 1 |
Z1-13-1 Engine Assembly, 634 61102 Dsrag, 182/1500
| 32***84 | Engine, Assembly, 634 Dsrag | 1 |
Z2-1-1 Service Tools
| 89***15 | Tool, Rear Seal Installer | 1 |
| 89***50 | Tool, Front Seal Installer | 1 |
Z4-12-1 Gasket Set Overhaul, 620 Dsrg/620 Dsrag, 634 Dsrag
| 02***89 | Kit-Gasket | 1 |
Z4-2-1 Gasket Set, Overhaul, 420 Dsrg/420 Dsrag
| 02***11 | Kit-Gasket, Major Overhaul | 1 |
Z4-11-1 Gasket Set Top, 620 Dsrg/620 Dsrag
| 02***90 | Kit-Gasket, Cylinder Head | 1 |
Z4-1-1 Gasket Set Top, 420 Dsrg/420 Dsrag
| 02***12 | Kit-Gasket, Cylinder Head | 1 |
Z5-1-1 Kit-Engine Overhaul, 420 Dsrg/420 Dsrag
| 02***04 | Liner, Cylinder | 4 |
| 02***71 | Piston, Assembly | 4 |
| 02***75 | Bearing, Big-End | 4 |
Z5-11-1 Kit-Engine Overhaul, 620 Dsrg/620 Dsrag, 634 Dsrag
| 02***04 | Liner, Cylinder | 6 |
| 02***71 | Piston, Assembly | 6 |
| 02***75 | Bearing, Big-End | 6 |
Z6-1-1 Filter Fuel Sediment, 420 Dsrg/420 Dsrag
| 32***77 | Filter, Head | 1 |
| 32***78 | Element, Fuel Filter | 1 |
Z6-12-1 Fuel Filter, 620 Dsrg/620 Dsrag, 634 Dsrag
| 02***77 | Washer, Sealing | 2 |
| 32***80 | Screw | 2 |
| 32***81 | Washer | 2 |
Z6-13-1 Filter, Oil, 620 Dsrg/620 Dsrag, 634 Dsrag
| 02***01 | Filter, Oil | 1 |
Z6-2-1 Fuel Filter, 420 Dsrg/420 Dsrag
| 02***77 | Washer, Sealing | 2 |
| 32***79 | Filter, Fuel | 1 |
| 32***80 | Screw | 1 |
Z6-11-1 Filter Fuel Sediment, 620 Dsrg/620 Dsrag, 634 Dsrag
| 32***98 | Filter, Fuel Assembly | 1 |
| 32***99 | Element, Fuel Filter | 1 |
Z6-3-1 Filter, Oil, 420 Dsrg/420 Dsrag
| 02***01 | Filter, Oil | 1 |
Z8-12-1 Front End Drive, 620 Dsrg/620 Dsrag, 634 Dsrag
| 02***18 | Nut | 1 |
| 02***20 | Pulley, Water Pump | 1 |
| 02***24 | Screw, M10x30 | 6 |
Z8-13-1 Crankshaft Pulley, 634 Dsrag
| 02***86 | Screw, M8x35 | 6 |
| 02***92 | Screw, M8x25 | 3 |
| 02***37 | Damper, Crankshaft Vibration | 1 |
Z8-11-1 Crankshaft Pulley, 620 Dsrg/620 Dsrag
| 02***86 | Screw, M8x35 | 6 |
| 02***92 | Screw, M8x25 | 3 |
| 02***38 | Nut | 1 |
Z8-2-1 Front End Drive, 420 Dsrg/420 Dsrag
| 02***39 | Sleeve | 1 |
| 02***40 | Pulley, Water Pump | 1 |
| 02***41 | Screw | 1 |
Z8-1-1 Crankshaft Pulley, 420 Dsrg/420 Dsrag
| 02***84 | Pulley, V Belt | 1 |
| 02***85 | Nut | 1 |
| 02***86 | Screw, M8x35 | 6 |
Z9-1-1 Starter Motor, 420 Dsrg/420 Dsrag
| 71***41 | Kit-Lever, Solenoid Engaging | 1 |
| 71***42 | Kit-Sundry Parts | 1 |
| 71***44 | Motor, Starter | 1 |
Z9-2-1 Starter Motor, 420 Dsrg/420 Dsrag
| 71***26 | Motor, Starter | 1 |
| 71***27 | Holder, Brush Assembly | 1 |
| 71***28 | Kit-Brush | 1 |
Z9-12-1 Starter Motor, 620 Dsrg/620 Dsrag, 634 Dsrag
| 71***26 | Motor, Starter | 1 |
| 71***27 | Holder, Brush Assembly | 1 |
| 71***28 | Kit-Brush | 1 |
Z9-11-1 Starter Motor, 620 Dsrg/620 Dsrag, 634 Dsrag
| 71***41 | Kit-Lever, Solenoid Engaging | 1 |
| 71***42 | Kit-Sundry Parts | 1 |
| 71***44 | Motor, Starter | 1 |
Z10-1-1 Alternator, 420 Dsrg/420 Dsrag
| 71***18 | Alternator, 12v, 65amp; Use Existing Pulley Or Order Item Number 8. This Unit Is Supplied As Standard With Singlegroove Pulley, Application Requires Twin., Alternator, 12v, 65amp | 1 |
| 71***19 | Pulley | 1 |
| 71***20 | Fan | 1 |
Z10-12-1 Alternator Mountings, 620 Dsrg/620 Dsrag, 634 Dsrag
| 02***42 | Nut, M8 | 1 |
| 02***49 | Washer | 2 |
| 02***43 | Screw, M8x30 | 2 |
Z10-2-1 Alternator Mountings, 420 Dsrg/420 Dsrag
| 02***27 | Screw | 1 |
| 02***31 | Screw | 1 |
| 02***42 | Nut, M8 | 1 |
Z10-11-1 Alternator, 620 Dsrg/620 Dsrag, 634 Dsrag
| 02***60 | Pulley, Alternator | 1 |
| 71***18 | Alternator, 12v, 65amp; Use Existing Pulley Or Order Item Number 8. This Unit Is Supplied As Standard With Singlegroove Pulley, Application Requires Twin., Alternator, 12v, 65amp | 1 |
| 71***20 | Fan | 1 |
Z12-2-1 Fuel Pipework, Low Pressure, Pre-Filter, 420 Dsrg/420 Dsrag
| 32***39 | Bolt, Banjo M12 | 2 |
| 32***71 | G.A, Ga Fuel Pipes(Hp/Lp), Genset | 0 |
| 32***33 | Ring, Snap | 1 |
Z12-1-1 Fuel Pipework, High Pressure, 420 Dsrg/420 Dsrag
| 32***11 | Clip, F.I.P 2 Way | 4 |
| 32***59 | Pipe, Fuel, Injector 1 & 2, Assembly | 1 |
| 32***60 | Pipe, Fuel Injector 3 & 4, Assembly | 1 |
Z12-12-1 Fuel Pipework, Low Pressure, Pre-Filter, 620 Dsrg/620 Dsrag/634 Dsrag
| 02***27 | Screw | 2 |
| 02***42 | Nut, M8 | 2 |
| 02***38 | Washer, Sealing | 5 |
Z12-11-3 Fuel Pipework, High Pressure, 634 Dsrag
| 02***21 | Washer, Sealing | 1 |
| 02***56 | Bolt, Banjo | 4 |
| 02***57 | Washer, Sealing | 16 |
Z12-3-1 Fuel Pipework, Low Pressure, 420 Dsrg/420 Dsrag
| 02***11 | Washer, Sealing | 2 |
| 02***21 | Washer, Sealing | 1 |
| 02***31 | Screw | 2 |
Z12-11-2 Fuel Pipework, High Pressure, 620 Dsrag
| 02***21 | Washer, Sealing | 1 |
| 02***56 | Bolt, Banjo | 4 |
| 02***57 | Washer, Sealing | 16 |
Z12-13-1 Fuel Pipework, Low Pressure, 620 Dsrg/620 Dsrag
| 02***11 | Washer, Sealing | 2 |
| 02***21 | Washer, Sealing | 2 |
| 02***46 | Screw, M8x35 | 1 |
Z12-13-2 Fuel Pipework, Low Pressure, 634 Dsrag
| 02***11 | Washer, Sealing | 2 |
| 02***21 | Washer, Sealing | 2 |
| 02***46 | Screw, M8x35 | 1 |
Z12-11-1 Fuel Pipework, High Pressure, 620 Dsrg
| 02***21 | Washer, Sealing | 1 |
| 02***56 | Bolt, Banjo | 4 |
| 02***57 | Washer, Sealing | 16 |
Z13-12-1 Fuel Injector, 620 61101 Dsrag, 147/1500
| 02***42 | Nut, M8 | 12 |
| 17***02 | Washer | 6 |
| 17***03 | Ring, Rubber | 6 |
Z13-1-1 Fuel Injector, 420 61070 Dsrg, 420 61071 Dsrag
| 02***42 | Nut, M8 | 8 |
| 17***00 | Injector, Assembly | 4 |
| 17***01 | Nozzle, Injector | 1 |
Z13-14-1 Fuel Injector, 634 61102 Dsrag
| 02***42 | Nut, M8 | 12 |
| 17***00 | Injector, Assembly | 6 |
| 17***01 | Nozzle, Injector | 1 |
Z13-11-1 Fuel Injector, 620 61100 Dsrg, 116/1500
| 02***42 | Nut, M8 | 12 |
| 17***02 | Washer | 6 |
| 17***03 | Ring, Rubber | 6 |
Z14-1-1 Fuel Lift Pump, 420 Dsrg/420 Dsrag
| 02***91 | Washer | 2 |
| 02***92 | Screw, M8x25 | 4 |
| 17***00 | Pump, Fuel Lift | 1 |
Z14-11-1 Fuel Lift Pump, 620 Dsrg/620 Dsrag, 634 Dsrag
| 02***91 | Washer | 2 |
| 02***92 | Screw, M8x25 | 4 |
| 17***00 | Pump, Fuel Lift | 1 |
Z15-12-1 Fuel Injection Pump, 620 61101 Dsrag, 147/1500
| 02***42 | Nut, M8 | 2 |
| 02***49 | Washer | 3 |
| 02***47 | O Ring | 1 |
Z15-1-1 Fuel Injection Pump, 420 61070 Dsrg, 79/1500
| 02***42 | Nut, M8 | 2 |
| 02***47 | O Ring | 1 |
| 02***48 | Nut | 1 |
Z15-13-1 Fuel Injection Pump, 634 61102 Dsrag, 182/1500
| 02***42 | Nut, M8 | 2 |
| 02***49 | Washer | 3 |
| 02***47 | O Ring | 1 |
Z15-2-1 Fuel Injection Pump, 420 61071 Dsrag, 95/1500
| 02***42 | Nut, M8 | 2 |
| 02***47 | O Ring | 1 |
| 02***48 | Nut | 1 |
Z15-11-1 Fuel Injection Pump, 620 61100 Dsrg, 116/1500
| 02***42 | Nut, M8 | 2 |
| 02***49 | Washer | 3 |
| 02***47 | O Ring | 1 |
Z16-11-1 Water Pump, 620 Dsrg/620 Dsrag, 634 Dsrag
| 02***13 | Plug | 2 |
| 02***14 | Washer, Sealing | 2 |
| 02***31 | Screw | 2 |
Z16-1-1 Water Pump, 420 Dsrg/420 Dsrag
| 02***13 | Plug | 2 |
| 02***14 | Washer, Sealing | 2 |
| 02***15 | Pump, Water Assembly | 1 |
Z18-11-1 Thermostat & Housing, 620 Dsrg/620 Dsrag
| 02***13 | Plug | 1 |
| 02***14 | Washer, Sealing | 1 |
| 02***50 | Screw, M8x50 | 4 |
Z18-12-1 Thermostat & Housing, 634 Dsrag
| 02***50 | Screw, M8x50 | 4 |
| 02***73 | Washer | 4 |
| 02***34 | Gasket | 1 |
Z18-1-1 Thermostat & Housing, 420 Dsrg/420 Dsrag
| 02***13 | Plug | 1 |
| 02***14 | Washer, Sealing | 1 |
| 02***27 | Screw | 1 |
Z19-11-1 Rocker Cover, 620 Dsrg/620 Dsrag, 634 Dsrag
| 02***14 | Screw | 4 |
| 02***15 | Washer | 4 |
| 02***16 | Washer, Rubber | 4 |
Z19-1-1 Rocker Cover, 420 Dsrg/420 Dsrag
| 02***12 | Cover, Rocker | 1 |
| 02***13 | Gasket | 1 |
| 02***14 | Screw | 4 |
Z20-1-1 Rocker Shaft, 420 Dsrg/420 Dsrag
| 02***87 | Nut | 8 |
| 02***88 | Screw, Adjusting | 8 |
| 02***89 | Plug | 2 |
Z20-11-1 Rocker Shaft, 620 Dsrg/620 Dsrag, 634 Dsrag
| 02***87 | Nut | 6 |
| 02***88 | Screw, Adjusting | 6 |
| 02***89 | Plug | 2 |
Z21-1-1 Valves & Push-Rods, 420 Dsrg/420 Dsrag
| 02***95 | Rod, Push | 8 |
| 02***96 | Tappet | 8 |
Z21-11-1 Valves & Push-Rods, 620 Dsrg/620 Dsrag, 634 Dsrag
| 02***95 | Rod, Push | 8 |
| 02***96 | Tappet | 8 |
Z22-12-1 Turbocharger, 634 61102 Dsrag
| 02***72 | Gasket | 1 |
| 02***73 | Gasket | 1 |
| 02***74 | Gasket | 1 |
Z22-1-1 Turbocharger, 420 61070 Dsrg, 79/1500
| 02***42 | Nut, M8 | 4 |
| 02***47 | Gasket | 1 |
| 02***50 | Turbocharger, 79kw Engine | 1 |
Z22-11-1 Turbocharger, 620 61100 Dsrg, 620 61101 Dsrag
| 02***72 | Gasket | 1 |
| 02***73 | Gasket | 1 |
| 02***74 | Gasket | 1 |
Z22-2-1 Turbocharger, 420 61071 Dsrag, 95/1500
| 02***42 | Nut, M8 | 4 |
| 02***47 | Gasket | 1 |
| 02***62 | Flange | 1 |
Z23-1-1 Turbo Pipework, 420 Dsrg/420 Dsrag
| 02***19 | Washer, Sealing | 1 |
| 02***21 | Washer, Sealing | 2 |
| 02***48 | Pipe | 1 |
Z23-12-1 Turbo Pipework, 634 Dsrag
| 02***19 | Washer, Sealing | 1 |
| 02***52 | Connector | 1 |
| 02***82 | Screw, M8x20 | 2 |
Z23-11-1 Turbo Pipework, 620 Dsrg/620 Dsrag
| 02***19 | Washer, Sealing | 1 |
| 02***52 | Connector | 1 |
| 02***59 | Hose | 1 |
Z25-1-1 Induction Manifold, 420 Dsrg/420 Dsrag
| 02***39 | Gasket | 1 |
| 02***41 | Screw, M8x70 | 8 |
| 02***42 | Screw, M6x25 | 1 |
Z25-11-1 Induction Manifold, 620 Dsrg/620 Dsrag, 634 Dsrag
| 02***48 | Screw, M8x60 | 5 |
| 02***51 | Screw, M8x65 | 7 |
| 02***44 | Screw, M8x90 | 2 |
Z26-1-1 Exhaust Manifold, 420 Dsrg/420 Dsrag
| 02***38 | Screw, M10x100 | 8 |
| 02***40 | Manifold, Exhaust | 1 |
| 02***45 | Manifold, Intake | 4 |
Z26-11-1 Exhaust Manifold, 620 Dsrg/620 Dsrag, 634 Dsrag
| 02***46 | Cover | 1 |
| 02***61 | Nut | 12 |
| 02***62 | Stud, M10x100 | 12 |
Z27-1-1 Cylinder Head, 420 Dsrg/420 Dsrag
| 02***13 | Plug | 1 |
| 02***99 | Cotter | 16 |
| 02***01 | Plate, Spring | 8 |
Z27-11-1 Cylinder Head, 620 Dsrg/620 Dsrag, 634 Dsrag
| 02***13 | Plug | 1 |
| 02***14 | Washer, Sealing | 2 |
| 02***25 | Connector | 1 |
Z28-11-1 Lifting Brackets, 620 Dsrg/620 Dsrag, 634 Dsrag
| 02***57 | Nut, M10 | 2 |
| 02***20 | Screw, M10x25 | 2 |
| 02***21 | Plate, Engine Lifting | 2 |
Z28-1-1 Lifting Brackets, 420 Dsrg/420 Dsrag
| 02***20 | Screw, M10x25 | 4 |
| 02***21 | Plate, Engine Lifting | 2 |
Z29-1-1 Oil Cooler, 420 Dsrg/420 Dsrag
| 02***14 | Washer, Sealing | 1 |
| 02***42 | Screw, M6x25 | 1 |
| 02***54 | Clamp | 4 |
Z29-11-1 Oil Cooler, 620 Dsrg/620 Dsrag, 634 Dsrag
| 02***14 | Washer, Sealing | 1 |
| 02***51 | Screw, M8x65 | 1 |
| 02***54 | Clamp | 4 |
Z30-11-1 Oil Level Dipstick, 620 Dsrg/620 Dsrag
| 02***80 | Dipstick | 1 |
Z30-12-1 Oil Level Dipstick, 634 Dsrag
| 02***89 | Dipstick | 1 |
Z30-1-1 Oil Level Dipstick, 420 Dsrg/420 Dsrag
| 02***75 | Dipstick | 1 |
Z31-11-1 Oil Sump, 620 Dsrg/620 Dsrag, 634 Dsrag
| 02***18 | Plug | 1 |
| 02***53 | Screw, M8x16 | 1 |
| 02***73 | Washer | 4 |
Z31-1-1 Oil Sump, 420 Dsrg/420 Dsrag
| 02***42 | Nut, M8 | 1 |
| 02***19 | Washer, Sealing | 1 |
| 02***70 | Sump | 1 |
Z32-2-1 Oil Relief Valve, 420 Dsrg/420 Dsrag
| 02***82 | Screw, M8x20 | 2 |
| 02***09 | Seat, Valve | 1 |
| 02***10 | Valve, Control | 1 |
Z32-1-1 Oil Pump, 420 Dsrg/420 Dsrag
| 02***80 | Pump, Oil Assembly | 1 |
| 02***83 | Nut, M10 | 1 |
| 02***84 | Washer | 1 |
Z32-11-1 Oil Pump, 620 Dsrg/620 Dsrag, 634 Dsrag
| 02***83 | Nut, M10 | 1 |
| 02***84 | Washer | 1 |
| 02***85 | Gear | 1 |
Z32-12-1 Oil Relief Valve, 620 Dsrg/620 Dsrag, 634 Dsrag
| 02***82 | Screw, M8x20 | 2 |
| 02***09 | Seat, Valve | 1 |
| 02***12 | Gasket | 1 |
Z33-11-1 Flywheel Assembly, 620 Dsrg/620 Dsrag, 634 Dsrag
| 02***60 | Flywheel | 1 |
| 02***62 | Gear, Starter Ring | 1 |
| 02***65 | Screw | 8 |
Z33-1-1 Flywheel Assembly, 420 Dsrg/420 Dsrag
| 02***60 | Flywheel | 1 |
| 02***62 | Gear, Starter Ring | 1 |
| 02***65 | Screw | 8 |
Z34-11-1 Flywheel Housing, 620 Dsrg/620 Dsrag, 634 Dsrag
| 02***13 | Plug | 2 |
| 02***29 | Pin | 2 |
| 02***54 | Seal, Oil | 1 |
Z34-1-1 Flywheel Housing, 420 Dsrg/420 Dsrag
| 02***13 | Plug | 2 |
| 02***29 | Pin | 2 |
| 02***54 | Seal, Oil | 1 |
Z35-11-1 Camshaft/Idler Gear, 620 Dsrg/620 Dsrag, 634 Dsrag
| 02***32 | Shaft | 1 |
| 02***33 | Gear | 1 |
| 02***34 | Bush | 1 |
Z35-1-1 Camshaft/Idler Gear, 420 Dsrg/420 Dsrag
| 02***32 | Shaft | 1 |
| 02***33 | Gear | 1 |
| 02***34 | Bush | 1 |
Z36-12-1 Timing Case & Covers, 634 Dsrag
| 02***07 | Plug | 1 |
| 02***26 | Gasket | 1 |
| 02***27 | Screw | 12 |
Z36-1-1 Timing Case & Covers, 420 Dsrg/420 Dsrag
| 02***07 | Plug | 1 |
| 02***26 | Gasket | 1 |
| 02***27 | Screw | 12 |
Z36-11-1 Timing Case & Covers, 620 Dsrg/620 Dsrag
| 02***07 | Plug | 1 |
| 02***26 | Gasket | 1 |
| 02***27 | Screw | 12 |
Z37-11-1 Piston & Con-Rod, Assemblies, 620 Dsrg/620 Dsrag
| 02***71 | Piston, Assembly | 4 |
| 02***72 | Kit-Piston Ring | 1 |
| 02***73 | Screw | 2 |
Z37-1-1 Piston & Con-Rod, Assemblies, 420 Dsrg/420 Dsrag
| 02***71 | Piston, Assembly | 4 |
| 02***72 | Kit-Piston Ring | 1 |
| 02***73 | Screw | 2 |
Z37-12-1 Piston & Con-Rod, Assemblies, 634 Dsrag
| 02***72 | Kit-Piston Ring | 1 |
| 02***73 | Screw | 2 |
| 02***74 | Bush, Small-End | 1 |
Z38-11-1 Crankshaft Assembly, 620 Dsrg/620 Dsrag
| 02***69 | Key | 1 |
| 02***76 | Kit-Main Bearing | 5 |
| 02***77 | Kit-Thrust Washer | 2 |
Z38-12-1 Crankshaft Assembly, 634 Dsrag
| 02***69 | Key | 1 |
| 02***76 | Kit-Main Bearing | 5 |
| 02***77 | Kit-Thrust Washer | 2 |
Z38-1-1 Crankshaft Assembly, 420 Dsrg/420 Dsrag
| 02***69 | Key | 1 |
| 02***70 | Crankshaft | 1 |
| 02***76 | Kit-Main Bearing | 5 |
Z39-12-1 Cylinder Block, 634 Dsrag
| 02***01 | Bush | 6 |
| 02***02 | Sleeve, Guide | 14 |
| 02***03 | Screw | 14 |
Z39-1-1 Cylinder Block, 420 Dsrg/420 Dsrag
| 02***00 | Block, Cylinder Assembly | 1 |
| 02***01 | Bush | 1 |
| 02***02 | Sleeve, Guide | 10 |
Z39-11-1 Cylinder Block, 620 Dsrg/620 Dsrag
| 02***01 | Bush | 6 |
| 02***02 | Sleeve, Guide | 14 |
| 02***03 | Screw | 14 |
Z43-1-1 Air Filter, Installation
| 32***04 | Valve, Dust | 1 |
| 32***10 | Clip | 3 |
| 32***85 | Filter Aiir Assembly | 1 |
Z43-11-1 Air Filter, Installation
| 32***00 | Band, Mounting | 1 |
| 32***06 | Valve, Dust | 1 |
| 32***07 | Clip | 1 |
Z45-1-1 Exhaust Silencer, Open Build
| 02***79 | Gasket | 1 |
| 13***7D | Capscrew | 6 |
| 32***60 | Pipe, Exhaust Outlet Elbow | 1 |
Z45-11-1 Exhaust System, Canopy Build
| 02***79 | Gasket | 1 |
| 13***5Z | Screw, M10 X 20mm Long; Use With Single Piece Casing. To Gearbox Number 445/143/831 Or 445/144/455, Screw, M10 X 20mm Long | 4 |
| 13***7D | Capscrew | 6 |
Z46-11-1 Radiator & Fittings, 620dsrg
| 13***5D | Setscrew, M6 X 20mm Long | 0 |
| 13***3D | Nut, M6 Lock | 0 |
| 14***6D | Washer, M6 Plain | 0 |
Z47-11-1 Cooler Assembly, 620dsrag
| 13***5D | Setscrew, M6 X 20mm Long | 24 |
| 13***7D | Setscrew, M8x25 | 4 |
| 13***3D | Nut, M6 Lock | 24 |
Z47-12-1 Cooler Assembly, 634dsrag
| 30***85 | Cap, Radiator Pressure | 1 |
| 30***05 | Guard, Fan, Left Hand | 1 |
| 30***06 | Guard, Fan, Right Hand | 1 |
Z48-12-1 Radiator/Cooler, Hose & Pipework, 620dsrag
| 30***79 | Clip | 1 |
| 30***93 | Clip | 4 |
| 30***94 | Clip, 40 - 60 | 3 |
Z48-13-1 Radiator/Cooler, Hose & Pipework, 634dsrag
| 30***79 | Clip | 1 |
| 30***93 | Clip | 4 |
| 30***94 | Clip, 40 - 60 | 3 |
Z48-21-1 Radiator, Coolant Drain
| 32***70 | Valve, 1/2"Bsp Female, 1/2"Bsp Male | 1 |
| 32***71 | Adapter, 1/2"Bsp M 1/2"Tail | 1 |
| 32***72 | Hose, Fuel 1/2"Bore | 1 |
Z48-11-1 Radiator, Hose & Pipework, 620dsrg
| 30***79 | Clip | 1 |
| 30***93 | Clip | 4 |
| 30***94 | Clip, 40 - 60 | 3 |
Z49-2-1 Cooling Fan & Spacer
| 32***52 | Fan Cooling | 1 |
Z49-1-1 Cooling Fan & Spacer
| 32***23 | Fan Cooling | 1 |
Z49-3-1 Cooling Fan & Spacer
| 32***57 | Fan Cooling | 1 |
Z50-1-1 Fuel Pipes, Fuel Tank To Filter
| 32***16 | Hose, Fuel Supply | 2 |
| 32***68 | Clip, 6mm Hose | 4 |
| 32***75 | Adapter, 3/8" Bsp F 3/8" Tail | 1 |
Z51-11-1 Fuel Filter, Sediment ( Racor )
| 32***11 | Filter, Fuel, Assembly | 1 |
| 32***12 | Element, Fuel Filter | 1 |
| 32***41 | O Ring | 1 |
Z57-1-1 Engine Oil Drain
| 14***19 | Seal, Dowty | 1 |
| 22***03 | Clip, Jubilee | 2 |
| 32***71 | Adapter, 1/2"Bsp M 1/2"Tail | 2 |
Z60-1-1 Base & Fittings
| 13***8D | Setscrew, M12 X 30 | 0 |
| 13***3D | Nut, M12 | 0 |
| 14***9D | Washer, M12 | 0 |
Z60-11-1 Fuel Tank
| 32***18 | Cap, Fuel Tank | 1 |
| 32***32 | Guage Fuel | 1 |
| 32***77 | Plug, 1.5"Bsp | 5 |
Z60-2-1 Base & Fittings
| 13***8D | Setscrew, M12 X 30 | 0 |
| 13***3D | Nut, M12 | 0 |
| 14***9D | Washer, M12 | 0 |
Z60-5-1 Lifting Bracket, (Optional)
| 13***2D | Setscrew, M16 X 50mm | 8 |
| 13***3D | Nut, M16 | 8 |
| 14***1D | Washer, M16 | 16 |
Z61-3-1 Canopy, Front Section
| 13***5D | Setscrew, M8x20 | 12 |
| 14***7D | Washer, M8 Plain | 12 |
| 14***7D | Washer, M8 Spring | 12 |
Z61-2-1 Canopy, Middle Section
| 13***5D | Setscrew, M8x20 | 84 |
| 14***7D | Washer, M8 Plain | 84 |
| 14***7D | Washer, M8 Spring | 84 |
Z61-1-1 Canopy Assembly
| 32***80 | Canopy, Assembly | 1 |
| 32***81 | Canopy, Middle Section | 1 |
| 32***82 | Canopy, Front Section | 1 |
Z61-4-1 Canopy, Rear Section
| 13***5D | Setscrew, M8x20 | 20 |
| 14***7D | Washer, M8 Plain | 20 |
| 14***7D | Washer, M8 Spring | 20 |
Z61-21-1 Canopy Soundproofing
| 32***39 | Kit-Panel, Soundproofing, Middle Section | 1 |
| 32***40 | Kit-Panel, Soundproofing, Front Section | 1 |
| 32***41 | Kit-Panel, Foil Backed, Rear Section | 1 |
Z62-1-1 Alternator, Uci 274c-16
| 32***08 | Regulator, A.V.R Sx460 | 1 |
| 32***57 | Bearing, Nde | 1 |
| 32***99 | Kit-Rectifier, Service | 1 |
Z62-2-1 Alternator, Uci 274e-16
| 32***08 | Regulator, A.V.R Sx460 | 1 |
| 32***57 | Bearing, Nde | 1 |
| 32***99 | Kit-Rectifier, Service | 1 |
Z62-4-1 Alternator, Uci 274h-16
| 32***08 | Regulator, A.V.R Sx460 | 1 |
| 32***57 | Bearing, Nde | 1 |
| 32***99 | Kit-Rectifier, Service | 1 |
Z62-6-1 Alternator, Uci 274 H16
| 32***07 | Kit, Rectifier | 1 |
| 32***08 | Regulator, A.V.R Sx460 | 1 |
| 32***09 | Bearing, Nde | 1 |
Z62-3-1 Alternator, Uci 274f-16
| 32***08 | Regulator, A.V.R Sx460 | 1 |
| 32***57 | Bearing, Nde | 1 |
| 32***99 | Kit-Rectifier, Service | 1 |
Z62-11-1 Alternator, Accessories
| 13***5D | Setscrew, M6 X 20mm Long | 6 |
| 13***3D | Nut, M6 Lock | 6 |
| 14***6D | Washer, M6 Plain | 12 |
Z62-5-1 Alternator, Uci 274 F16
| 32***07 | Kit, Rectifier | 1 |
| 32***08 | Regulator, A.V.R Sx460 | 1 |
| 32***09 | Bearing, Nde | 1 |
Z63-1-1 Control Box & Panel, Assemblies
| 13***1D | Screw, Set M6x12 | 2 |
| 13***5D | Setscrew, M8x20 | 8 |
| 14***6D | Washer, M6 Plain | 2 |
Z63-12-1 Control Unit, Box & Panel Assemblies
| 13***3D | Setscrew | 4 |
| 13***5D | Setscrew, M6 X 20mm Long | 4 |
| 14***6D | Washer, M6 Plain | 8 |
Z64-11-1 Circuit, Breaker, Box Assembly
| 13***5D | Setscrew, M6 X 20mm Long | 86 |
| 13***5D | Setscrew, M8x20 | 37 |
| 14***6D | Washer, M6 Plain | 86 |
Z64-12-1 Circuit, Breaker, Box Assembly
| 13***5D | Setscrew, M6 X 20mm Long | 86 |
| 13***5D | Setscrew, M8x20 | 37 |
| 14***6D | Washer, M6 Plain | 86 |
Z64-1-1 Circuit Breaker Box, Assembly
| 13***5D | Setscrew, M6 X 20mm Long | 12 |
| 13***0D | Screw, Set | 2 |
| 13***5D | Setscrew, M8x20 | 18 |
Z65-11-1 Battery Installation
| 13***0D | Setscrew, M10 X 40mm | 4 |
| 13***3D | Nut, Self Lock M10 | 4 |
| 14***8D | Washer, M10 | 8 |
Z65-2-1 Engine Speed Sensor
| 32***15 | Sensor Magnetic Pick | 1 |
Z65-1-1 Engine Electrics
| 13***8D | Setscrew, M10 X 30 | 2 |
| 14***8D | Washer, M10 | 2 |
| 14***8D | Washer, Spring, M10 | 2 |
Frequently asked questions
What engine does the JCB G110Q use?
The JCB G110Q uses a 4.8L JCB 448TAG-92 turbocharged diesel engine.
What is the operating weight of the JCB G110Q?
Operating weight data for the specific G110Q model is not documented in the provided sources; verify with your dealer.
What model replaced the JCB G110Q?
Replacement model information for the G110Q is not documented in the provided sources; verify with your dealer.
What G110Q(JCB GENERATOR) owners discuss
What engine powers the JCB G110Q generator?
The JCB G110Q is powered by a 4.8L JCB 448TAG-92 turbocharged diesel engine, providing a power output of 92kW. It features a prime power rating of 100kVA/80kW and a standby rating of 110kVA/88kW.
What are the common starting issues for JCB 444 series engines found in these generators?
Starting problems are the most common issue for JCB 444 engines. In cold weather, the engine may crank but fail to fire if glow plugs are not receiving power or if the glow plug relay/timer fails. Owners should verify that glow plugs heat up correctly and cycle for 10 to 15 seconds before cranking.
What electrical faults commonly cause intermittent forward/reverse operation in JCB shuttle transmissions?
Intermittent movement is often caused by electrical failures in the forward/reverse microswitches or solenoids. The shuttle lever operates microswitches that activate hydraulic solenoids on the transmission body. A failed forward microswitch or a bridged wire in the inhibitor switch can prevent the forward solenoid from energizing, causing the machine to rev but not move forward.
What hydraulic fluid specifications are recommended for JCB machines?
JCB recommends using JCB branded hydraulic oil with high-quality base oils and advanced additive technology. For specific applications like mini excavators, AW46 hydraulic fluid is suitable. JCB service fluids provide proper component protection and should be changed at recommended intervals to prevent silicate separation in the cooling system.
What are the typical wear patterns or maintenance concerns for JCB powertrains?
Owners report that hydraulic systems may lose strength or operate slowly when the rear of the machine is lower than the front, indicating potential oil starvation to the pump. Additionally, metal filings in the torque converter filter can indicate internal wear. Regular inspection of the hydraulic filter and fluid levels is critical to maintain performance.
How is the manufacturing year determined on modern JCB machines?
Modern JCB machines use a 17-character PIN (ISO 3779 format). The 10th character of the PIN encodes the manufacturing year using a letter code that skips I, O, Q, U, and Z. The first three characters are the World Manufacturer Identifier (WMI), with SLP indicating Rocester (UK) built machines.
What should be checked when buying a used JCB G110Q generator?
Verify the engine serial number on the engine block plate to confirm the specific 448TAG-92 variant, as parts can vary between engine generations. Check the glow plug system for cold-start reliability. Inspect the hydraulic fluid for silicate separation (brown sludge) in the expansion bottle. Ensure the forward/reverse solenoids and microswitches are functioning correctly if the unit has mobility components. Have your dealer verify the engine serial and electrical system integrity.
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 G110Q(JCB GENERATOR). Related factory variants of the same model family:
G110Q(JCB GENERATOR)
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