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Jcb G380X(JCB GENERATOR)

Maintenance schedule, common problems & OEM parts breakdown

The JCB G380X is a heavy-duty prime power generator within the JCB QX range, designed for static or mobile industrial applications. It utilizes a JCB Dieselmax or Scania engine platform to deliver power in the 250 kVA to 780 kVA range, with specific G380X units rated around 380 kVA. The machine is packaged in a robust, powder-coated canopy for weather protection and noise reduction, featuring a 3-stage fuel filtration system and IoT-enabled LiveLink telematics for remote monitoring. Configurations include prime power and standby ratings, with options for automatic transfer switches (ATS) and segregated AC/DC electrical access points.

The G380X belongs to the QX generation of JCB generators, which succeeded earlier Premier and compact ranges by integrating heavy-duty Scania, Cummins, or Volvo engines into durable canopied enclosures. This shift addressed the market demand for higher efficiency, lower emissions, and enhanced remote diagnostics in critical power applications. In the used and parts market, the G380X remains significant due to its modular powertrain design, which allows for engine-specific servicing, and its widespread deployment in commercial and industrial sectors where reliability and minimal downtime are prioritized over initial cost.

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 G380X(JCB GENERATOR) specifications

Engine

ModelJCB 4.4L (DieselMax)
Gross/Net Power164 kWm – 182 kWm (Engine Output)
Displacement4.4 litre
CylindersNot documented for this exact serial range — verify with your dealer
Emissions TierCPCB II compliant

Weights

Operating WeightNot documented for this exact serial range — verify with your dealer
Shipping Weight2,900 kg (Dry Weight)
Ground PressureNot documented for this exact serial range — verify with your dealer

Dimensions

Transport Length4 m
Transport WidthNot documented for this exact serial range — verify with your dealer
Transport HeightNot documented for this exact serial range — verify with your dealer
Wheelbase or Track GaugeNot documented for this exact serial range — verify with your dealer
Ground ClearanceNot documented for this exact serial range — verify with your dealer

Performance

Travel SpeedsNot documented for this exact serial range — verify with your dealer
Prime Power Rating180 kVA – 200 kVA
GradeabilityNot documented for this exact serial range — verify with your dealer

Service capacities (summary)

Fuel Tank310 L
Hydraulic SystemNot documented for this exact serial range — verify with your dealer
Engine OilNot documented for this exact serial range — verify with your dealer
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 G380X(JCB GENERATOR) maintenance schedule

Service intervalTasks
Every 10 h
  • Check engine oil, hydraulic tank, and coolant expansion tank levels at ground level.
  • Inspect for fluid leaks around engine bay, axles, kingpost, and cylinder fittings.
  • Verify track tension and roller condition on JS-series excavators or tire pressure on wheeled models.
  • Inspect hoses for chafing, cylinder rods for scoring, and GET teeth/pins for wear.
  • Test cab safety items: seat belt, mirrors, horn, backup alarm, ROPS/FOPS, and fire extinguisher.
Every 100 h
  • Grease all pivot points including boom, arm, bucket, kingpost, and stabilizer pivots.
  • Check alternator, A/C, and fan belt tension and condition.
  • Inspect battery electrolyte on non-sealed units or check terminal tightness on sealed units.
  • Clean or replace air filter primary element per restriction indicator.
  • Inspect slew ring bolts for torque integrity on JS-series excavators.
Every 500 h
  • Change engine oil and filter using JCB Engine Oil Special or equivalent 15W-40 diesel oil.
  • Replace primary and secondary fuel filters to protect common-rail injectors.
  • Inspect hydraulic return filter magnet for metallic debris before disposal.
  • Collect oil samples from engine, hydraulic, axle, and final drive systems for baseline analysis.
  • Document track or tire condition measurements against wear limits.
Every 1,000 h
  • Drain, flush, and refill cooling system with JCB-spec long-life coolant.
  • Change transmission oil and filter on backhoes and wheel loaders.
  • Change front and rear axle oil including hubs on wheeled machines.
  • Perform full ECM diagnostic scan via JCB ServiceMaster tool and review logged fault codes.
  • Inspect turbocharger shaft play, boot condition, and wastegate function on Dieselmax units.
  • Load test alternator and starter to identify degrading electrical components.
Every 2,000 h
  • Drain hydraulic tank, clean tank interior, and refill with JCB-spec hydraulic oil.
  • Inspect structural components (boom, arm, loader arm, chassis) for cracking or unauthorized welding.
  • Measure swing ring radial and axial play on JS-series excavators using dial indicators.
  • Service brake discs and check immersed brake condition on backhoes and wheel loaders.
  • Check injector spray patterns via diagnostic tool and replace as required.
  • Service cab HVAC including A/C pressure, evaporator condition, and cabin filter replacement.

Servicing the G380X(JCB GENERATOR) beyond the schedule

Predictive Maintenance & Fluid Analysis

Baseline fluid analysis at the 500-hour interval is critical for the G380X. Collect samples from the engine, hydraulic tank, and final drives to detect early bearing wear or contamination. The JCB Dieselmax and Scania engines in this range rely on strict oil change intervals; exceeding 500 hours risks sludge formation and injector damage. Monitor LiveLink data for voltage fluctuations and fuel consumption trends to predict alternator or fuel system degradation before failure occurs.

Corrective & Common Repairs

Common G380X repairs involve the 3-stage fuel filtration system and Deep Sea Electronics control panels. Replace primary and secondary fuel filters at 500 hours to protect high-pressure injectors. Inspect belt tension and alternator output at 100-hour intervals to prevent charging failures. Check cylinder rod scoring and hose chafing during daily walkarounds, as hydraulic leaks are frequent failure points in static generator applications exposed to environmental debris.

Overhaul & Rebuild Points

The 2000-hour service dictates major overhaul timing for the G380X. Drain and clean the hydraulic tank to prevent valve sticking in the powerpack. Measure swing ring play if the unit is mounted on a mobile trailer chassis. Inspect structural welds on the frame and canopy supports for fatigue cracking. Replace turbocharger boots and check wastegate function on Dieselmax engines to maintain boost pressure and fuel efficiency during extended prime power operation.

Seasonal & Environment Servicing

In cold climates, verify glow plug operation and use low-temperature rated JCB 15W-40 oil to ensure reliable starts. In hot environments, monitor coolant silicate levels to prevent separation and overheating. Clean the radiator and intercooler fins regularly to maintain heat rejection efficiency. Ensure the soundproof canopy ventilation is unobstructed to prevent heat soak. Inspect the automatic transfer switch (ATS) contacts and battery terminals for corrosion, which accelerates in coastal or industrial atmospheres.

G380X(JCB GENERATOR) common service parts

Part numberPart
SC1393641Head, Fuel FilterCheck fitment →
SC1393640Element, Filter, Fuel FeedCheck fitment →
SC1393639Filter, Fuel FeedCheck fitment →
SC1763776Element, Fuel FilterCheck fitment →
SC1471259Filter, FuelCheck fitment →

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

G380X(JCB GENERATOR) fault codes & troubleshooting

CodeMeaningLikely causeWhat to do
P0087Fuel rail/system pressure too lowFuel filter blockage, lift pump failure, or leak in low-pressure supply lineCheck fuel filter condition and fuel lift pump output pressure
P0117Engine coolant temperature sensor circuit low voltageFaulty coolant temperature sensor, shorted wiring harness, or poor connector contactInspect sensor wiring for damage and check connector pins for corrosion
P0521Engine oil pressure sensor range/performance issueFaulty oil pressure sensor, low oil level, or sensor circuit malfunctionVerify actual oil pressure with mechanical gauge and inspect sensor wiring
P2047DEF/AdBlue injector circuit open (SCR system fault)Open circuit in reductant injector wiring, faulty injector, or clogged doserCheck injector connector for damage and verify injector resistance values
U0100Lost communication with Engine Control Module (ECM)Damaged CAN bus wiring, poor ground connection, or low battery voltageInspect battery terminals, ground straps, and CAN bus harness integrity
101Low transmission clutch pressure detectedLow transmission fluid level, faulty pressure sensor, or internal hydraulic leakCheck transmission fluid level and inspect pressure sensor circuit
P0335Crankshaft Position Sensor 'A' Circuit No SignalFailed crank sensor, damaged wiring, or debris on sensor tipInspect sensor gap and wiring harness for physical damage or corrosion
P0100Manifold Absolute Pressure/Barometric Pressure Circuit MalfunctionFaulty MAP sensor, vacuum leak, or short/open in sensor circuitCheck MAP sensor connector and inspect intake system for vacuum leaks

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

G380X(JCB GENERATOR) attachments & work tools

Power Generation & Lighting

The G380X is a mid-range diesel generator (350–400 kVA class) powered by Scania, Cummins, or Volvo engines. It is part of the heavy-duty power systems range designed for prime and standby applications.

Enclosure & Acoustics

Factory configurations include robust, sound-attenuated canopies suitable for noise-sensitive environments. The design features heavy-gauge all-steel construction for durability and weather protection.

Fuel Systems

The unit utilizes a 740-liter total fuel tank capacity for extended runtimes. Options include extended fuel tanks or connections for external bulk fuel tanks to support continuous operation.

Control & Telematics

Configurable options include synchronizing and auto main failure (AMF) control panels. LiveLink telematics are available to monitor fuel consumption, engine health, and exported power tracking.

Filtration & Engine Protection

The power system incorporates heavy-duty air filtration and a 3-stage fuel filtration system. These components ensure optimal engine performance and longevity in harsh environments.

All G380X(JCB GENERATOR) assemblies by section

Every catalogued assembly group for the Jcb G380X(JCB GENERATOR). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Z Jcb Generator Set
Jcb : G380x(Jcb Generator) : Z Jcb Generator Set : Z00 Generator Sets
Z1-3-1 Engine, Complete, Dc12 Ems
Z1-11-1 Engine, Complete, Dc16 Ems
Z1-1-1 Engine, Complete, Dc12 Ems
32***94Engine, Assembly, Dc12 Ems1
SC***10Tool, Rear Crank Seal1
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Z1-2-1 Engine, Complete, Dc12 Ems
Z4-2-10 Gasket Set, General Overhaul, Dc12
SC***83O Ring1
SC***11O Ring2
SC***85O Ring1
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Z4-1-20 Gasket Set, Cylinder Head, Dc16
SC***83Gasket, Manifold, Fuel1
SC***61Gasket, Fuel Feed1
SC***66Gasket, Rocker Cover, Upper1
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Z4-2-20 Gasket Sets, General, Overhaul Dc16
33***60Kit-Gasket1
33***84Gasket1
33***92Ring, Sealing4
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Z4-1-1 Kit, Cylinder, Gaskets
SC***83Gasket, Manifold, Fuel1
SC***61Gasket, Fuel Feed1
SC***66Gasket, Rocker Cover, Upper1
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Z4-1-10 Gasket Set, Cylinder Head, Dc12 59a
SC***51Gasket, Rocker Cover, Upper1
SC***42Seal, Fuel Feed4
SC***61Gasket, Fuel Feed1
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Z5-5-10 Kit, Piston, & Liner Dc12
33***21Liner, Cylinder1
33***22O Ring1
33***23O Ring1
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Z5-5-1 Kit, Piston, & Liner Dc9
33***26Piston, Single Speed1
33***55Kit-Piston & Liner1
33***56Ring, Piston, Compression1
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Z5-5-20 Kit,Piston & Liner, Dc16
SC***29Pin, Gudgeon1
SC***87Shim, =0.2mm, Liner0
SC***43Ring, Retaining2
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Z5-1-10 Service Kit, Outer, Turbocharger, Dc12
SC***37Gasket1
SC***71Gasket1
SC***85Element, Oil Filter1
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Z6-3-10 Filter, Oil, Dc12
33***08Element, Oil Filter1
SC***98Adapter1
SC***58Adapter1
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Z6-4-1 Filter, Oil, Centrifugal Dc9
33***49Head, Filter Unit1
33***50Cleaner, Centrifugal Oil, Assembly1
33***51Spring1
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Z6-2-20 Filter, Water Seperator, Dc16
SC***02Bowl, Fuel Feed1
SC***41Head, Fuel Filter1
SC***40Element, Filter, Fuel Feed1
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Z6-3-20 Filter, Oil, Dc16
SC***08Filter, Oil, Assembly1
SC***54O Ring1
SC***28Tube1
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Z6-1-1 Fuel Filter, Assembly
33***11Housing, Fuel Filter, Assembly1
33***12Bracket1
33***13Screw, M8 X 501
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Z6-1-10 Fuel Filter, Dc12
SC***89Head, Filter1
SC***04Plug1
SC***76Element, Fuel Filter1
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Z6-4-20 Filter, Oil, Centrifugal, Dc16
SC***83O Ring1
SC***35Nozzle1
SC***85O Ring1
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Z6-4-10 Filter, Oil, Centrifugal Dc12
33***50Cleaner, Centrifugal Oil, Assembly1
33***51Spring1
33***08Element, Oil Filter1
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Z6-1-20 Fuel Filter, Dc16
SC***57Cover, Fuel Feed1
SC***59Filter, Fuel1
SC***58Pipe, Fuel Feed1
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Z6-2-1 Filter, Water Seperator, Dc9 & Dc12
SC***02Bowl, Fuel Feed1
SC***41Head, Fuel Filter1
SC***40Element, Filter, Fuel Feed1
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Z8-6-1 Drive, Belt, Guard Dc9
33***70Guard, Drive Belt, Upper Right1
33***71Guard, Drive Belt, Upper Left1
33***72Guard, Drive Belt, Lower1
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Z8-6-10 Drive Belt Guard, Dc12
33***06Guard, Drive Belt, Upper1
33***07Washer2
SC***05Bracket3
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Z8-4-10 Casing, Transmission, Belt Dc12
33***82Screw, Flange, M8 X 501
33***56Tube, Spacer, L = 10mm1
33***96Washer7
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Z8-3-20 Front End Drive, Accessories, Alternator & Water Pump Dc16
33***95Belt, Poly-V, L=1795mm1
SC***87Roller, Fan Belt1
SC***65Belt, Drive1
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Z8-1-20 Front End Drive, Accessories, Fan Belt Dc16
SC***11Bolt, Allen, M8 X 35mm6
SC***29Belt1
SC***47Bolt, M10x80, Flange Screw1
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Z8-1-10 Front End Drive, Accessories, Fan Belt Dc12
33***25Adjuster, Belt1
33***26Spacer2
33***27Pulley, Idler1
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Z8-2-1 Fan, Pusher 787mm Dc9
33***81Spacer, L = 106mm1
33***82Fan, Pusher 787mm Dia1
SC***50Screw, Flange4
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Z8-3-1 Front End Drive, Accessories, Alternator & Water Pump Dc9
33***77Idler, Roller1
33***83Idler, Roller1
33***84Adjuster, Belt1
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Z8-3-10 Front End Drive, Accessories, Alternator & Water Pump Dc12
33***23Spacer1
33***24Belt, Poly-V, L=17001
SC***47Bolt, M10x80, Flange Screw1
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Z8-2-20 Fan, Assembly, 965mm Dc16
33***48Bearing1
33***41Bearing, Assembly1
33***42Screw, Flange, M12 X 1404
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Z8-1-1 Front End Drive, Accessories, Fan Belt Dc9
Z8-5-10 Fan, Cowling Dc12
33***93Washer, Spring3
33***33Seal2
33***16Cowling, Fan1
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Z8-5-1 Fan, Cowling Dc9
33***28Plate, Fan Cowling1
33***29Bracket, Upper1
33***30Bracket, Lower1
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Z8-2-10 Fan, Assembly, 912 Mm Dc12
Z9-1-1 Starter Motor, Dc9 & Dc12
SC***26Plate, Starter Motor1
SC***48Relay1
SC***11Motor, Starter1
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Z9-2-1 Starter Motor, Dc16
33***01Motor, Starter1
SC***23Stud3
SC***26Plate, Starter Motor1
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Z10-1-10 Alternator, 65amp, Dc12
33***40Alternator, 65a1
33***41Alternator1
33***42Kit-Mounting4
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Z10-1-20 Alternator, 100amp, Dc16
33***00Alternator1
SC***92Sleeve, Guide2
SC***64Alternator1
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Z10-1-1 Alternator, 100amp
33***00Alternator1
SC***43Pulley, Alternator1
SC***22Nut1
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Z11-3-20 Cable Retainer, Cylinder Head
33***02Holder, Cable Clamp2
33***03Holder, Cable Bushing2
SC***91Holder, Cable, Clamp8
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Z11-5-10 Engine, Cable Installation, Dc12 59a
33***13Screw, M8 X 502
33***45Bracket1
33***46Duct1
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Z11-4-20 Protection Plate, & Mounting Bracket, Dc16
SC***89Shield, Heat, Cable Routeing1
SC***56Holder, Cable, Bushing4
SC***30Shield, Heat, Rear Of Engine1
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Z11-1-20 Unit, Electronic Control, Dc16
33***43Housing, Contact Engine Control Unit, 10-Pol0
SC***91Cover, Engine Control Unit2
SC***22Bolt8
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Z11-3-10 Cables, Retainer, Cylinder Head Dc12 59a
33***44Duct1
SC***03Screw6
SC***69Attaching Plate1
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Z11-5-1 Engine, Harness, Installation Dc9
33***82Screw, Flange, M8 X 502
33***13Screw, M8 X 502
33***45Bracket1
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Z11-2-10 Harnesses, &, Sensors Dc12 59a
33***90Sensor, Temperature1
33***20Sensor, Charge Air Pressure1
33***54Harness1
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Z11-1-10 Ecu Unit, Dc9 & Dc12
33***43Housing, Contact Engine Control Unit, 10-Pol0
SC***91Cover, Engine Control Unit2
SC***61Strap8
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Z11-2-20 Harnesses, &, Sensors Dc16
33***20Sensor, Charge Air Pressure1
33***04Cable, Harness1
33***05Cable, Harness1
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Z11-6-1 Injection Equipment, Harnesses, Dc9
33***07Screw, Self Tapping, M6 X 202
33***20Sensor, Charge Air Pressure1
33***99Harness1
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Z11-4-10 Protection Plates, & Mounting Bracket, Dc12
SC***74Plate, Protective1
SC***63Bracket1
SC***94Plate, Protective1
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Z12-1-10 Fuel Pipes, High Pressure, Dc12 59a
33***17Valve, Overflow1
33***19Bolt, Banjo6
33***21Clamp3
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Z12-2-1 Fuel Manifold, Leakoff Pipe
33***22Pipe, Fuel Leak Off, Assembly1
SC***76Clamp, Bleed Assembly.1
SC***90Adapter, Union, Straight1
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Z12-2-20 Fuel Return Pipes, Dc16
33***17Valve, Overflow1
SC***77Nut1
SC***65Bolt1
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Z12-1-1 Fuel System, Without Compressor
33***14Pipe, Fuel Assembly1
33***15Bracket1
33***16Pipe, Fuel Assembly1
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Z12-1-20 Fuel Pipes, High Pressure, Dc16
33***17Valve, Overflow1
33***94Seal, Fuel Feed1
33***97Pipe, Fuel1
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Z13-1-1 Fuel Injector, Dc9 & Dc12
33***52Holder, Fuel Injector5
33***53Screw, Flange, M10 X 405
33***91Injector, Assembly5
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Z13-1-20 Fuel Injector, Dc16
SC***64O Ring, Injector8
SC***73Nozzle, Injector, Fuel1
SC***39Washer, Injector8
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Z15-1-1 Fuel Feed Pump, Dc9 & Dc12
SC***11O Ring1
SC***19Screw, M8 X 302
SC***09Screw2
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Z15-1-20 Fuel Lift Pump, Dc16
33***96Sleeve, Coupling1
SC***70Seal, O-Ring1
SC***19Screw, M8 X 302
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Z16-1-10 Water Pump, Dc12 59a
33***30Ring, Sealing1
33***31Pulley1
33***36Kit-Repair, Water Pump0
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Z16-1-20 Water Pump, Dc16
SC***64Gasket, Water Pump1
SC***21Screw, M8 X 404
SC***25Screw, M8 X 608
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Z16-1-1 Water Pump, Dc9
33***78Pump, Water1
33***79Housing, Water Pump1
33***80Ring, Sealing1
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Z17-1-10 Water Inlet, Connector, Dc12 59a
33***32Bracket1
33***33Spacer1
SC***86Connector, Water Inlet1
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Z17-2-10 Water Bleed Pipe, Dc12 59a
33***34Bolt, Banjo1
33***35Bolt, Banjo5
SC***24Banjo, Connector1
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Z17-2-20 Water Bleed Pipe, Dc16
SC***89Pipe, Bleed Assembly.1
SC***15Hose, Bleed Assembly.1
SC***86Connector, Bleed Pipe8
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Z18-1-20 Thermostat & Housing, Dc16
SC***25Screw, M8 X 604
SC***24Thermostat, 83 Degrees1
SC***25Gasket, Thermostat1
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Z18-1-1 Thermostat & Housing
33***24Housing, Thermostat1
33***25Cover, Thermostat Housing, Low Turbo1
33***26Cover, Thermostat Housing, High Turbo1
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Z18-1-10 Thermostat & Housing, Dc12 59a
SC***85Housing, Thermostat1
SC***19Screw, M8 X 3010
SC***87O Ring1
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Z19-1-1 Rocker Cover
33***82Screw, Flange, M8 X 5020
33***83Cover, Rocker1
33***84Cover, Rocker1
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Z19-2-20 Crankcase, Breather, Dc16
33***63Pipe, Breather1
33***64Plug1
33***65Clamp, Hose3
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Z19-2-10 Breather Tube, Crankcase, Dc12
SC***20Screw1
SC***82Pipe, Crankcase Breather1
SC***32Nut, Flange M82
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Z19-1-10 Rocker Cover, Dc12
33***11Cover, Rocker, Closed Crankcase Ventilation2
33***12Cover, Rocker, Open Crankcase Ventilation1
SC***51Gasket, Rocker Cover, Upper6
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Z19-1-20 Rocker Cover, Dc16
SC***90Cover8
SC***06Cap, Oil Filler1
SC***66Gasket, Rocker Cover, Upper8
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Z19-2-1 Crankcase, Ventilation, Open Dc9
33***56Tube, Spacer, L = 10mm1
33***65Clamp, Hose3
33***14Hose1
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Z20-1-20 Rocker Assembly, Dc 16
SC***10Screw, Adjusting2
SC***89Arm, Rocker, Injector8
SC***92Plug, Rivet8
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Z20-1-10 Rocker Assembly, Dc12 59a
SC***10Screw, Adjusting1
SC***89Arm, Rocker, Injector6
SC***92Plug, Rivet6
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Z21-1-10 Pushrods & Tappets
33***05Bolt3
33***06Rod, Push10
SC***02Circlip2
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Z21-1-20 Pushrods & Tappets
33***73Tappet, Assembly4
33***74Tappet, Roller2
33***75Tappet, Roller2
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Z22-1-10 Turbocharger, Dc12 59a
33***19Turbocharger1
SC***92Kit-Service1
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Z22-2-1 Turbo Pipework, Solenoid, & Wastegate Valves Dc9
33***29Plug, Screw M10 X91
33***60Bracket1
33***61Valve, Solenoid1
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Z22-1-1 Turbocharger
Z22-1-20 Turbocharger, Dc16 44a/45a
Z23-1-10 Turbo Pipework, Dc12
33***09Bracket1
33***10Hose1
SC***71Gasket1
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Z23-1-1 Turbo Pipework, Dc9
33***10Hose1
33***39Pipe, Lubrication1
33***40Pipe, Return1
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Z23-1-20 Turbo Pipework, Dc16
SC***44Adapter2
SC***71Gasket1
SC***19Screw, M8 X 302
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Z23-2-20 Turbo Exhaust, Pipework, Dc16
SC***32Nut1
SC***74Clamp, "V"1
SC***01Pipe1
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Z23-2-10 Turbo Exhaust, Pipework, Dc12
SC***33Pipe, Exhaust Elbow1
SC***32Nut1
SC***37Clamp, "V"1
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Z25-1-20 Manifold, Induction, Dc16
33***87Manifold, Induction1
33***88Manifold, Induction1
SC***58Pipe, Flange2
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Z25-1-10 Air Induction, Manifold, Dc12 59a
33***20Sensor, Charge Air Pressure1
SC***17Manifold, Induction1
SC***31Screw, M8 X10024
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Z25-1-1 Air Induction, Manifold, Dc9
33***46Manifold, Induction1
SC***31Bolt, M8x100, Flange Screw20
SC***11Seal1
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Z26-2-20 Manifold, Exhaust, Heat Shield Dc16
33***90Shield, Heat2
33***91Bracket4
SC***13Bolt4
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Z26-1-1 Manifold, Exhaust, Dc9
33***41Manifold, Turbo Exhaust1
33***42Manifold, Exhaust1
33***43Gasket1
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Z26-1-20 Manifold, Exhaust, Dc16
33***77Manifold, Exhaust2
33***78Ring, Sealing8
33***79Screw, Flange16
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Z26-1-10 Manifold, Exhaust, Dc12 59a
33***16Manifold, Turbo Exhaust1
33***17Manifold, Exhaust2
33***18Stud, M10 X 502
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Z27-1-20 Cylinder Head, Dc16
33***85Head, Cylinder8
33***90Insert, Valve Seat2
33***91Insert, Valve Seat, Intake O/S Stage 2/Tier20
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Z27-1-1 Cylinder Head, Dc9
33***85Head, Cylinder1
33***86Head, Cylinder, P/Ex1
33***87Head, Cylinder1
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Z27-1-10 Cylinder Head, Dc12 59a
33***90Insert, Valve Seat2
33***91Insert, Valve Seat, Intake O/S Stage 2/Tier20
33***92Insert, Valve Seat, Exhaust Std2
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Z29-1-20 Oil Cooler, Dc16
33***76Cover, Plate1
SC***33Cooler, Oil1
SC***77Cover1
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Z29-1-10 Oil Cooler, Dc12 59a
SC***98Gasket1
SC***18Gasket1
SC***21Bolt, M8x40, Flange Screw10
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Z29-1-1 Oil Cooler, Dc9
33***37Cooler, Oil1
33***38Adapter1
SC***98Gasket1
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Z30-1-1 Dipstick, Assembly, Dc9
33***30Dipstick1
33***31Dipstick1
33***32Pipe1
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Z30-1-10 Oil Level Dipstick, & Tube, Dc12
SC***24Ferrule1
SC***48Dipstick1
SC***37Clip1
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Z30-1-20 Oil Level Dipstick, & Tube, Dc16
SC***91Pipe1
SC***47Adapter, Union, Straight1
SC***26Flange Pipe1
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Z31-1-20 Oil Sump, Dc16
33***59Sump, Oil1
33***60Kit-Gasket1
33***61Screw, Flange26
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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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Z31-1-10 Oil Sump, Dc12
33***93Plate, Cover1
SC***14Washer, Sealing1
SC***22Screw, M8 X 6027
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Z31-1-1 Oil Sump, Dc9
33***62Plug, Magnetic1
33***23Sump, Oil1
33***24Gasket1
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Z32-1-10 Oil Pump, Dc12
SC***43Pipe1
SC***22Screw, M8 X 604
SC***46Pipe1
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Z32-2-10 Oil, Pressure, Sensor Dc12 59a
33***13Washer, Sealing2
33***14Flange, Mounting1
SC***89Adapter1
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Z32-1-1 Oil Pump, Dc9
33***34Pump, Oil1
33***35Pipe, Suction1
33***36Tube1
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Z32-1-20 Oil Pump, Dc16
SC***25Screw, M8 X 604
SC***19Screw, M8 X 3019
SC***19O Ring2
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Z33-1-1 Flywheel, Assembly, Dc9
Z33-1-10 Flywheel Assembly, Dc12
SC***95Bolt, M16 X 9010
SC***88Flywheel, Assembly1
SC***13Gear, Flywheel Ring1
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Z33-1-20 Flywheel, Assembly, Dc16
33***70Flywheel, Assembly1
SC***13Gear, Flywheel Ring1
SC***73Screw10
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Z34-1-1 Flywheel, Housing, Dc9
33***11Housing, Flywheel1
33***12Housing, Flywheel1
33***13Plate, Timing Gear12
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Z34-1-20 Flywheel Housing, Dc16
33***58Housing, Flywheel1
SC***80O Ring1
SC***83Seal, Rear Oil1
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Z34-1-10 Flywheel Housing, Dc12
33***83Housing, Flywheel1
33***84Insert, Thread6
33***85Cover1
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Z35-1-1 Camshaft, & Timing Gears, Dc9
33***46Camshaft1
33***47Camshaft1
33***48Bearing1
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Z35-10-1 Balance Shaft, Assembly, Dc9
33***27Frame, Balance Shaft, Assembly1
33***28Dowel, 6 X 162
33***29Plug, Screw M10 X92
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Z35-1-20 Camshaft, & Timing Gears, Dc16
33***48Bearing1
33***71Camshaft1
33***72Camshaft1
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Z35-1-10 Camshaft, & Timing Gears, Dc12
33***48Bearing2
33***07Camshaft1
SC***94Gear1
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Z36-2-20 Casing, Vibration Insulator, Dc16
SC***60Gasket1
SC***40Cover1
SC***87O Ring1
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Z36-1-10 Timing Case & Covers, Dc12
SC***67Plug1
SC***37Cover1
SC***25Screw, M8 X 602
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Z36-2-1 Casing, Crankshaft, Damper Dc9
33***23Cover, Front Assembly1
SC***43Bolt, M10 X 60mm, Flange Screw8
SC***29Gasket1
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Z36-1-20 Timing Case & Covers, Dc16
SC***64Spring1
SC***18Gasket2
SC***10Stud, M10 X 502
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Z37-1-20 Piston & Con-Rod, Assemblies, Dc16
33***69Kit-Big End Bearing1
SC***29Pin, Gudgeon1
SC***59Bush, Small End1
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Z37-1-1 Piston, Assembly, Dc9
33***25Piston, All Speed5
33***26Piston, Single Speed5
SC***29Pin, Gudgeon1
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Z37-1-10 Piston & Con-Rod, Assemblies, Dc12
33***94Rod, Connecting, Assembly6
33***95Bolt, Con-Rod M14 X 702
33***96Kit-Big End Bearing, Undersize 0.250
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Z38-1-1 Crankshaft Assembly, Flywheel & Damper Dc9
33***94Rod, Connecting, Assembly5
33***95Bolt, Con-Rod M14 X 702
33***96Kit-Big End Bearing, Undersize 0.255
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Z38-1-10 Crankshaft Assembly, Flywheel & Damper Dc12
33***00Damper, Crankshaft1
33***01Driver1
33***02Sleeve, Spacer1
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Z38-1-20 Crankshaft Assembly, Dc16
SC***16Crankshaft1
SC***89Screw12
SC***04Gear, Crankshaft1
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Z39-1-2 Cylinder Block, Assembly
33***01Guide12
33***02Screw, M18 X 190, To E628566812
33***03Plug, Core 14mm1
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Z39-1-10 Cylinder Block, Assembly, Dc12
33***02Screw, M18 X 190, To E628566814
33***04Bearing, Main Std7
33***05Bearing, Main, U/S = 0.25mm7
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Z39-1-1 Cylinder Block, Assembly
33***98Block, Cylinder, Dc91
33***01Guide12
33***02Screw, M18 X 190, To E628566812
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Z39-2-1 Oil Filler, Cylinder, Block Dc9 & Dc12
33***53Seal1
33***54Hose1
33***55Bracket1
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Z39-1-20 Cylinder Block, Assembly, Dc16
33***04Bearing, Main Std5
33***05Bearing, Main, U/S = 0.25mm0
33***06Bearing, Main, U/S = -0.50mm0
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Z42-1-1 Engine Mounting, Brackets Dc9
33***48Bracket, Engine Mounting, Lh1
33***49Bracket, Engine Mounting, Rh1
33***50Screw, Flange4
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Z42-1-10 Engine Mounting, Brackets Dc12
33***53Bracket, Engine Mounting2
33***54Screw8
33***06Bracket, Engine Mounting2
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Z42-1-20 Engine Mounting, Brackets Dc16
33***50Screw, Flange8
33***53Bracket, Engine Mounting2
33***54Screw8
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Z43-1-20 Air Filter, Installation, Dc16
32***64Clip, Overcentre5
32***98Cover, Filter End1
32***99O Ring1
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Z43-1-10 Air Filter, Dc12
33***21Hose1
33***22Pipe1
33***23Bracket1
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Z43-1-1 Air Filter, Assembly, Dc9
33***21Hose1
33***22Pipe1
33***05Clamp, 160-180mm1
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Z44-1-1 Air Induction Hoses, Dc9
33***21Hose1
33***47Pipe1
SC***32Sensor1
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Z44-1-20 Air Induction Hoses, Dc16
33***89Pipe, Elbow1
SC***32Sensor1
SC***69Hose1
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Jcb : G380x(Jcb Generator) : Z Jcb Generator Set : Z45 Exhaust System
Z46-1-1 Radiator & Fittings, Dc9
33***82Radiator1
33***83Plug1
33***84Bush2
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Z46-1-10 Radiator, Frame & Components, Dc12
33***86Screw, M12 X 1304
33***87Washer, Spring0
33***88Washer0
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Z46-4-20 Fan Guards, Dc16
33***08Bracket1
33***09Washer19
SC***63Washer2
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Z46-4-1 Fan Guards, Finger Dc9
33***82Screw, Flange, M8 X 501
33***09Washer1
33***70Ring, Sealing, 787mm Dia1
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Z46-4-10 Guard, Finger Dc12
33***29Grille2
33***30Bracket1
33***31Bracket, L/H1
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Z47-3-10 Radiator, Hoses And Pipework, Dc12
33***96Washer2
33***33Hose, Radiator1
33***34Bracket1
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Z47-3-20 Radiator, Hoses And Pipework, Dc16
SC***15Nut, Lock M101
SC***81Clamp1
SC***94Gasket1
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Z47-1-1 Radiator, Assembly, Dc9
33***82Radiator1
33***87Washer, Spring10
33***89Nut, M122
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Z47-3-1 Radiator, Hoses And Pipework, Dc9
33***95Hose1
33***96Washer2
33***87Hose, Radiator1
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Z47-1-10 Radiator, Assembly, Dc12
33***84Bush1
33***85Clamp1
33***86Screw, M12 X 1301
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Z47-1-20 Cooler Assembly, Dc16
SC***45Tank, Expansion1
SC***68Cap, Coolant Pressure1
SC***67Sensor1
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Z48-2-10 Cooler,Air Charge, Dc12
33***93Washer, Spring0
33***65Ring, Sealing4
33***06Bracket2
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Z48-3-1 Connectors, Charge, Air Cooler Pipes Dc9
33***74Pipe, Charge Air1
33***75Connector, Charge Air Pipe1
33***76Screw, M8 X 902
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Z48-2-1 Cooler,Air Charge, Dc9
33***76Screw, M8 X 902
33***61Cooler, Charge Air1
33***62Cooler, Charge Air1
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Z48-2-20 Cooler,Air Charge, Installation Dc16
33***40Bracket1
SC***91Hose3
SC***24Clamp, 'V'1
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Jcb : G380x(Jcb Generator) : Z Jcb Generator Set : Z49 Charge Air Cooler Hoses
Jcb : G380x(Jcb Generator) : Z Jcb Generator Set : Z50 Low Pressure Fuel System
Jcb : G380x(Jcb Generator) : Z Jcb Generator Set : Z51 Fuel Sediment Filters
Jcb : G380x(Jcb Generator) : Z Jcb Generator Set : Z57 Engine Oil Drain
Jcb : G380x(Jcb Generator) : Z Jcb Generator Set : Z60 Generator Chassis Components
Jcb : G380x(Jcb Generator) : Z Jcb Generator Set : Z61 Generator Bodywork
Z62-2-1 Generator Alternator, Hc434d
32***22Kit-Rectifier1
32***23Regulator, As440; Sa465 See Bulletin1
33***24Regulator, Voltage, Mx341 Avr1
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Z62-3-1 Generator Alternator, Hc434e
32***22Kit-Rectifier1
32***23Regulator, As440; Sa465 See Bulletin1
33***24Regulator, Voltage, Mx341 Avr1
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Z62-6-1 Generator Alternator, Hc534e
32***22Kit-Rectifier1
32***23Regulator, As440; Sa465 See Bulletin1
33***24Regulator, Voltage, Mx341 Avr1
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Z62-1-1 Generator Alternator, Uci274i
32***08Regulator, A.V.R Sx4601
32***99Kit-Rectifier, Service1
32***23Regulator, As440; Sa465 See Bulletin1
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Z62-4-1 Generator Alternator, Hc434f
32***22Kit-Rectifier1
32***23Regulator, As440; Sa465 See Bulletin1
33***24Regulator, Voltage, Mx341 Avr1
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Z62-5-1 Generator Alternator, Hc534d
32***22Kit-Rectifier1
32***23Regulator, As440; Sa465 See Bulletin1
33***24Regulator, Voltage, Mx341 Avr1
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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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Z66-1-20 Battery, Cables, & Isolation Kit
33***30Kit, Battery Isolator, 11091
33***32Battery, Cables, Scania 500kva1
70***67Battery, Gel Type1
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Z66-1-10 Battery, Cables, & Isolation Kit
33***30Kit, Battery Isolator, 11091
33***47Battery, Cables, Scania Dc121
70***67Battery, Gel Type1
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Z66-1-1 Battery Cables, Isolator & Bridge
33***30Kit, Battery Isolator, 11091
33***41Bridge, Battery, With Isolator Kit1
33***48Battery, Cables, Scania Dc91
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Frequently asked questions

What engine does the JCB G380X use?

The G380X utilizes a JCB Dieselmax or Scania engine, depending on the specific configuration and market. These are heavy-duty, turbocharged diesel engines designed for prime and standby power applications.

What is the operating weight of the G380X?

Operating weight varies by configuration, trailer chassis, and fuel tank size. Specific weight data for the G380X is not documented in the provided sources; consult the machine's nameplate or dealer spec sheet for exact figures.

What model replaced the G380X?

The G380X is part of the QX range. Succession within the JCB generator line is complex, with newer RS and Premier ranges offering updated emissions compliance and telematics. Specific replacement model data for the G380X is not documented in the provided sources; verify with a JCB dealer.

What G380X(JCB GENERATOR) owners discuss

What engine manufacturer and series are typically associated with the JCB G380X generator range?
The JCB G380X generator range utilizes heavy-duty power systems sourced from established manufacturers such as Scania, Cummins, and Volvo. Specific configurations may also utilize JCB Dieselmax engines depending on the market and tier requirements.
What are the common electrical starting issues reported for JCB generator sets?
Intermittent starting failures are frequently attributed to electrical faults rather than mechanical engine issues. Common causes include failed glow plug relays or timers preventing cold starts, and faulty joystick or drive selector switches that fail to signal neutral status to the starter circuit.
How does the JCB G380X handle load management and monitoring?
The generator set supports 24x7 operation and includes IoT-enabled LiveLink telematics. This system provides real-time performance tracking, including voltage and current across three phases, fuel level timelines, engine operation across load bands, and exported power tracking.
What are the typical undercarriage or wear patterns for JCB construction equipment that share powertrain components?
For JCB excavators and backhoes sharing similar hydraulic architectures, wear patterns often involve the torque converter filter accumulating metal filings during transmission slippage. Hydraulic pump performance can degrade if the machine operates with the rear end lower than the front, causing oil starvation.
What engine cooling system maintenance is critical for JCB industrial engines?
Engine coolant must be changed at recommended service intervals to prevent silicate separation. The presence of brown sludge in the expansion bottle indicates silicate separation, which compromises corrosion protection and heat transfer efficiency.
What are the key specifications for the JCB G380X generator capacity and fuel system?
The G380X is part of the QX range, which features efficient, modern fuel engines. Specific capacity data for the G380X varies by configuration; however, the broader QX range includes models with fuel tank capacities around 186 liters and prime power ratings up to 58.5 kVA for similar class units.
What should be checked when buying a used JCB G380X generator?
Verify the specific engine manufacturer (Scania, Cummins, or Volvo) and serial range to confirm the correct ECM software version. Check the LiveLink history for load band data and fault codes. Inspect the 3-stage fuel filtration system and ensure the joystick/selector neutral safety switches are functioning correctly to prevent starting issues.

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

Need a specific G380X(JCB GENERATOR) part?

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