JCBagriculturaljs tracked excavators

Jcb JZ255

Maintenance schedule, common problems & OEM parts breakdown

The JCB JZ255 is a mid-size crawler excavator manufactured from 2008 to 2022, with an operating weight ranging from 22.98 tons to 25.9 tons depending on the specific configuration (NC, LC, or L). The machine is powered by a JCB Dieselmax or Isuzu engine, producing up to 171 horsepower. It succeeded the JZ235 and was eventually replaced by the JS220LC and JS240LC series. Configurations offered include standard cab, ROPS cabin, and various boom and stick lengths to suit general construction, utility, and dredging applications.

Across its production life, the JZ255 evolved from Tier 2 to Tier 3 emissions standards, with the JZ255 NC and LC variants introducing updated engine management and hydraulic systems for improved fuel efficiency and control. The machine remains significant in the used and parts market due to its robust JCB Dieselmax engine, which offers extended 500-hour oil intervals compared to competitors, and its widely available undercarriage components. The JZ255's longevity and serviceability make it a staple in the secondary market for contractors seeking reliable mid-size excavation power.

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 JZ255 specifications

Engine

ModelIsuzu 4HK1XYSJ-01
Emissions TierTier 3
Net Power128 kW (171 hp)

Weights

Operating Weight (JZ 255 NC)22.98 t (50,663 lb)
Operating Weight (JZ 255)23.613 t (52,058 lb)
Operating Weight (JZ 255 LC)23.33 t (51,433 lb)
Operating Weight (JZ 255 L)25.9 t (57,099 lb)

Dimensions

Track Width600 mm (23.6 in)
Max. Reach Horizontal9.88 m (32.4 ft)
Dredging Depth6.63 m (21.7 ft)

Performance

Tear-out Force155 kN (34,856 lbf)

Service capacities (summary)

Coolant Replacement Interval2,000 hours

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

Jcb JZ255 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.
  • Inspect fuel water separator and drain if necessary.
  • Check track tension and roller condition.
  • Inspect hoses, cylinders, and fittings for leaks or damage.
Every 250 h
  • Replace engine oil and oil filter.
  • Replace primary and secondary fuel filters.
  • Inspect and clean or replace air filter elements.
  • Check alternator and fan belt tension.
  • Inspect battery electrolyte levels and terminals.
  • Lubricate all grease points on boom, arm, and bucket.
Every 500 h
  • Replace hydraulic return filter.
  • Take oil samples from engine, hydraulic, and final drive systems.
  • Inspect slew ring bolts and torque to specification.
  • Check track shoe bolts for tightness.
  • Inspect undercarriage components against wear limits.
  • Clean radiator and cooler cores.
Every 1,000 h
  • Replace engine coolant and flush system.
  • Replace hydraulic suction filter.
  • Inspect turbocharger shaft play and charge cooler boots.
  • Check injector spray patterns via diagnostic tool.
  • Test alternator and starter load.
  • Inspect structural welds on boom and chassis.
Every 2,000 h
  • Replace hydraulic oil and clean hydraulic tank.
  • Measure swing ring radial and axial play.
  • Inspect final drive oil for metal debris.
  • Check brake disc wear and immersed brake condition.
  • Inspect cab HVAC system and replace cabin filter.
  • Perform comprehensive electrical system inspection.

Servicing the JZ255 beyond the schedule

Predictive Maintenance & Fluid Analysis

At the 500-hour interval, collect oil samples from the engine, hydraulic tank, and final drives to establish a baseline. Monitor hydraulic oil for viscosity changes and contamination, as the JZ255’s closed-center hydraulic system is sensitive to particulate ingress. Check the hydraulic return filter magnet for metallic debris during the 500-hour service. Extend or compress subsequent intervals based on lab results. Regular fluid analysis prevents catastrophic pump and valve failures by detecting early wear in the swing and travel motors.

Corrective & Common Repairs

Common JZ255 issues include turbocharger boot degradation and charge cooler leaks on Dieselmax engines, requiring inspection at the 1000-hour service. Check injector spray patterns via diagnostic tool to identify clogged nozzles affecting fuel economy. Inspect the slew ring bolts for loosening, a critical safety item on JS-series excavators. Replace worn track shoes and idlers before they damage the undercarriage frames. Address hydraulic hose chafing at the kingpost and boom pivot points to prevent high-pressure leaks.

Overhaul & Rebuild Points

The 2000-hour deep service mandates measuring swing ring radial and axial play using dial indicators. If play exceeds limits, rebuild the swing bearing to prevent chassis misalignment. Inspect final drive oil for metal flakes indicating gear wear. Check brake disc wear on wheeled variants and immersed brake condition. Rebuild hydraulic pumps if flow tests show significant deviation from factory specs. Structural inspection of the boom, arm, and chassis welds is essential to identify fatigue cracks before they propagate.

Seasonal & Environment Servicing

In cold climates, verify the cold start pre-heat system and auto engine warm-up function. Drain the fuel water separator frequently to prevent ice formation in the fuel lines. In dusty environments, inspect the double-element air cleaner more often and replace elements per restriction indicator. Clean radiator and cooler cores regularly to prevent overheating in high-ambient temperatures. Check battery electrolyte levels in non-sealed units and protect terminals from corrosion. Ensure the cab HVAC system is serviced to maintain operator comfort and visibility.

JZ255 common service parts

Part numberPart
32/925838Element, Fuel Filter, CartridgeCheck fitment →
32/925869Element, Fuel Sediment Filter, CartridgeCheck fitment →
32/925867Filter, Fuel Sedimentor, 5 MicronsCheck fitment →
32/926053Filter, FuelCheck fitment →
332/G1864Filter, Fuel Assembly 2 MicronCheck fitment →

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

JZ255 fault codes & troubleshooting

CodeMeaningLikely causeWhat to do
P0335Crankshaft Position Sensor 'A' Circuit No SignalFaulty crankshaft position sensor, damaged wiring harness, or sensor ring debrisInspect sensor connector for corrosion; check sensor air gap and wiring continuity; replace sensor if circuit is intact
P1093Common Rail Pressure Fault (Lack of Feed)Low fuel level, clogged fuel filter, or failing lift pumpCheck fuel tank level and primary fuel filter; verify lift pump operation and pressure
P1101Rail Pressure Control Error (Positive Fault)Faulty high-pressure fuel pump, pressure relief valve issue, or sensor calibration driftVerify fuel pressure sensor readings against actual gauge; inspect high-pressure lines for leaks; check pump relief valve
P0697ECU Internal 5V Supply Auxiliary FaultInternal ECU regulator failure or short circuit in 5V sensor supply circuitDisconnect all 5V sensors one by one to isolate short; if no short found, ECU may require replacement or reprogramming
P029BInjector Drift Fault Detection on Injector 2Worn or clogged fuel injector #2; high electrical resistance in injector circuitSwap injector #2 with another cylinder to see if code follows; check injector wiring harness for chafing
P0336Torque Reduction Crank Sensor Fault (Signal Fault)Intermittent signal from crankshaft position sensor due to heat or loose connectionCheck crank sensor mounting bolt torque; inspect connector pins for push-out; monitor live data for signal dropout
P0340Camshaft Position Sensor Circuit MalfunctionFailed camshaft position sensor or timing chain/belt stretch affecting syncVerify cam sensor signal with oscilloscope; check engine timing marks if mechanical noise is present
P06A7-00T4F Inducement Sensor Supply Monitoring Error through DCUFault in Diesel Particulate Filter (DPF) temperature/pressure sensor supply or DCU communicationCheck DPF sensor wiring and connectors; verify DCU power and ground; scan for related emission codes

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

JZ255 attachments & work tools

Quick Couplers

Steelwrist offers hydraulic and mechanical quick couplers rated for 0-70 tonnes, covering the JZ255 class. Automatic couplers are available in the 4-70 tonne range. Factory specifications for the JZ255 NC and LC variants list both hydraulic and mechanical quick hitch options as standard or available equipment.

Tiltrotators

Steelwrist provides the X26 tiltrotator for the 18-26 tonne range and the X32 for the 25-33 tonne range, both compatible with the JZ255. These units are designed to work with specific adaptors such as weld-on SQ, pendulum SQ, or bolt-on plates depending on the boom configuration.

Digging and Utility Buckets

Steelwrist supplies digging buckets for the 0-33 tonne range and utility buckets for the 13-33 tonne range. JCB dealer catalogs list Deep Profile, Heavy Duty, and Tapered Ditching buckets as standard options for the JZ255. Bucket capacities vary by configuration and series.

Specialty and Grapple Buckets

Available tool families include sorting buckets (2-32 tonnes), cable buckets (0-40 tonnes), and grading buckets (0-40 tonnes). JCB OEM offerings also include Jaw buckets and Ribbed buckets for specific material handling tasks on the JZ255.

Powered Work Tools

Hydraulic-powered tools compatible with the JZ255 include finger grapples, multi grapples, and sorting grapples rated for 2-26 tonnes. Hydraulic pallet forks are available in the 10-33 tonne range. Sweeper attachments are offered for the 5-33 tonne class.

Mechanical Work Tools

Mechanical options include ripper attachments, grading beams, asphalt cutters, and pallet forks, all rated for the 2-33 tonne range. These tools attach via standard pin-on systems or specific adaptors compatible with the JZ255 boom geometry.

Hydraulic Breakers

JCB offers an OEM hydraulic breaker range designed to work in harmony with its excavators. Dealer catalogs confirm availability of breakers for all JCB models, including the JZ255, requiring appropriate hydraulic kit configurations.

Adaptors and Mounting Systems

Steelwrist lists weld-on adaptors SQ (3-70 tonnes), pendulum adaptors SQ (5-33 tonnes), and bolt-on adaptor plates SQ (5-70 tonnes) for the JZ255. Tilt couplers XT are available for the 2-24 tonne range. Specific adaptor selection depends on the machine's serial number and boom type.

Machine Specifications and Serial Applicability

The JCB JZ255 was manufactured from 2008 to 2022. The JZ255 NC variant was produced from 2010 to 2014 with a weight of 22.98 tonnes. The JZ255 LC variant was produced from 2010 to 2014 with a weight of 23.33 tonnes and an Isuzu engine. The JZ255 L variant was produced from 2005 to 2013 with a weight of 25.9 tonnes. Service manuals cover JZ235/255 models from serial number the OEM part reference to the OEM part reference. Engine designation for the JZ255 is 4HK1XYSJ-01 TIER 3.

All JZ255 assemblies by section

Every catalogued assembly group for the Jcb JZ255. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

A Attachments
A2-1-7 Bucket, 1350mm Wide, 1.045 Cubic Metres
51***04Pin, Locking, V295
98***28Bucket, General Purpose, 1350mm Wide1
99***37Tooth, V29 Series, Syl5
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A2-1-4 Bucket, 1000mm Wide, 0.81 Cubic Metres
51***04Pin, Locking, V294
98***24Bucket, General Purpose, 1000mm Wide1
99***37Tooth, V29 Series, Syl4
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A2-1-26 Bucket, 1150mm Heavy Duty
98***86Bucket, 1150 Heavy Duty1
99***42Tooth, Type V33syl0
99***43Pin, Locking, V330
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A2-1-8 Bucket, 1450mm Wide, 1.140 Cubic Metres
51***04Pin, Locking, V296
98***30Bucket, General Purpose, 1450mm Wide1
99***37Tooth, V29 Series, Syl6
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A2-1-10 Bucket, 1500mm Wide, 1.180 Cubic Metres
51***04Pin, Locking, V296
98***31Bucket, General Purpose, 1500mm Wide1
99***37Tooth, V29 Series, Syl6
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A2-7-1 Quickhitch, Hydraulic, Miller
14***01Nipple, Grease, Straight, 1/8 Bsp4
25***02Valve, Check1
33***25Frame, Coupler1
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A2-4-1 Bucket, Grading/Ditching, 1524mm. 60" Wide
33***64Bucket, Grading, 1524mm. 60", Wide. Js200, 2201
98***05Bucket, Grading, 1524mm. 60", Wide. Js200, 220; Replaced By 33***641
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A2-1-1 Bucket, 600mm Wide, 0.40 Cubic Metres
51***04Pin, Locking, V293
98***20Bucket, General Purpose, 600mm Wide1
99***37Tooth, V29 Series, Syl3
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A2-1-3 Bucket, 900mm Wide, 0.70 Cubic Metres
51***04Pin, Locking, V294
98***23Bucket, General Purpose, 900mm Wide1
99***37Tooth, V29 Series, Syl4
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A2-1-6 Bucket, 1200mm Wide, 1.025 Cubic Metres
51***04Pin, Locking, V295
98***26Bucket, General Purpose, 1200mm Wide1
99***37Tooth, V29 Series, Syl5
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A3-10-1 Kit, Drain, Case
12***03Tie, Cable, L=300mm X W=7.6mm50
13***8ZBolt, M10 X 30 Long2
13***2ZBolt; Replaces 60***122
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B Bodywork, Cab, Loader End, S
B1-5-51 Kit, Frame, Insulation
33***00Foam, Seal1
33***01Foam, Seal1
33***02Foam, Seal1
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B1-5-15 Tread Plates
13***7DScrew20
13***8DScrew4
14***5DWasher4
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B1-5-30 Cowlings, Steps &, Handrail
12***12Spacer, Steel, 10mm Long4
13***7DScrew8
13***0DScrew4
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B1-4-1 Tank, Diesel Fuel
13***3DScrew6
14***21Seal, Bonded 3/4" Bsp1
14***6DWasher, M6 Plain6
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B1-5-41 Cowlings, Engine Bulkhead
13***7DScrew9
13***8DScrew44
14***5DWasher44
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B1-3-1 Tank, Hydraulic
13***5DScrew, Set6
13***5DBolt4
13***5ZBolt4
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B1-5-20 Grilles, Engine Cowling
13***8DScrew7
13***9DBolt, Grade 12.91
14***5DWasher16
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B1-6-1 Counterweight Rear
13***33Bolt2
13***34Bolt2
13***6ZScrew, Grub4
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B1-5-5 Engine Covers
13***8DScrew4
13***1ZNut, M5-84
13***1DNut, M8 High Stress4
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B1-2-1 Cover, Lower, Mainframe
13***5DBolt4
13***9DBolt, Grade 12.924
13***2DBolt, M12x502
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B1-5-1 Frame Support
13***5DScrew, Set4
13***5DScrew, Set2
13***7DScrew4
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B1-5-10 Doors, Cowling, And Mountings
13***3DSetscrew4
13***5DScrew, Set4
13***8DScrew6
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B1-1-1 Mainframe
33***74Plate, Left Hand Corner1
33***13Plate, Side Skirt, L.H.1
33***39Plate, Side Skirt, R.H.1
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B2-1-20 Front Wiper, & Cab Components
24***09Grommet2
33***26Stop, Cab Roof2
33***29Knob1
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B2-2-20 Cab Door Components, Rear Side 2 Man Cab, Jz235r
13***9ZBolt; Replaces 60***091
13***5DBolt4
13***01Nut3
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B2-16-1 Cab Mountings, Cab Foor & Mat
13***7DScrew4
13***8DScrew24
33***53Plate, Kick1
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B2-1-1 Cab
13***3ZScrew, M8 X 163
33***28Harness, Cab, Radio & Interior Lights1
33***29Seal1
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B2-15-1 Front Wiper, Cab Lower Window, See C3-15-1
13***7ZBolt, High Strength; Replaces 60***07,60***7r2
14***8ZWasher, Plain M10; San 23620 Ref Dave Bickerton Confirms Identic, Al To 33***8z Rationalise Parts2
14***3ZScrew4
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B2-1-30 Cab, Mounting Fasteners
13***14Bolt, Hex. Head4
13***16Bolt2
13***01Nut2
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B2-1-10 Front Screen
13***3ZScrew, M8 X 162
33***63Windscreen, Assembly1
33***66Frame, Window1
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B2-7-1 Mirrors, External
13***1ZNut, High Strength, M104
13***7DCapscrew, M104
33***60Mirror, External2
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B2-12-1 Rain Visor, Cab
13***7ZScrew, M6 X 25mm Long4
13***7ZScrew, Hexagon M8 X 258
13***7ZBolt4
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B2-2-1 Cab Door Components
33***54Assembly, Door1
33***58Frame, Cab Door1
33***62Catch, Assembly, Js Cab1
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B2-3-20 Seat, Air Suspension
13***3ZNut, Self Lock, M84
13***5ZCapscrew4
13***7ZCapscrew, M8x25mm1
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B2-3-2 Seat, High Back, Standard
13***7DCapscrew1
14***7DWasher, M8 Plain1
33***90Bracket, Seatstop1
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B2-1-5 Cab, 2 Man, Jz235r
13***3ZScrew, M8 X 163
13***8ZScrew, M10x30; Replaces 60***8r4
13***8ZBolt2
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B2-4-1 Console, Cab Servo Control, Left Hand,Fixed Console
13***3ZScrew2
13***7ZCapscrew, Socket Head4
14***6ZWasher, M62
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B2-2-10 Cab Door Components, 2 Man Cab, Jz135r
13***1ZNut2
14***8ZWasher, Plain M10; San 23620 Ref Dave Bickerton Confirms Identic, Al To 33***8z Rationalise Parts2
33***05Gasket, Door Handle1
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B2-8-1 Cab Panels
14***83Hook, Coat1
26***78Hammer, Emergency, Glass Breaker; Supercedes 69***88, San 124991
30***86Vent, Air, (Rectangular)1
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B2-1-35 Cab, Mounting Fasteners, 2 Man Cab Jz235r
13***14Bolt, Hex. Head4
13***16Bolt2
13***01Nut2
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B2-7-2 Mirrors
13***4DBolt, M12 X 60mm1
13***1DNut, M10 High Strength2
13***7DCapscrew, M102
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B2-11-1 Fire Extinguisher
13***3ZScrew; Replaces 69***212
13***3ZNut2
15***81Extinguisher, Fire C/W Cradle; Replaces Jhh0058 Ref San09577, Replaced By 26***95 See San 103081
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B2-14-1 Vandal Guard, Cab, 3 Pc Front, Panel
33***52Guard, Front Upper Hinged1
33***53Guard, Front Center Hinged1
33***54Guard, Front Lower1
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B2-3-40 Seat Belt
B2-3-30 Seat, Rear Cab, 2 Man Cab, Jz235r
13***5DSetscrew, M8x2010
14***7DWasher, M8 Plain10
33***56Plate, Switch Cover1
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B2-14-2 Vandal Guard, Cab, 2 Pc Front, Panel
33***55Guard, Front Deflector1
33***56Guard, Rear1
33***57Guard, Door1
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B2-3-21 Seat, Air Suspension, High Back
13***7DCapscrew1
14***7DWasher, M8 Plain1
33***90Bracket, Seatstop1
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B2-3-1 Seat, Standard
13***3ZNut, Self Lock, M84
13***5ZCapscrew4
13***7ZCapscrew, M8x25mm1
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B2-9-1 Guard, Fops, Front And Top, Cab Mounted
13***8ZScrew6
13***1ZBolt, M16x45mm2
13***3ZNut4
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B2-1-25 Front Wiper, & Cab Components, 2 Man Cab Jz135r
24***09Grommet2
33***26Stop, Cab Roof2
33***29Knob1
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B2-18-1 Direct Glazing, Replacement Material, Cab
41***01Sealant, Clear Dp2205, 310ml0
41***09Sealant, Black Acrylic 221, 310ml Cartridge0
41***09Adhesive, Jcb Ultrafast, 310ml Cartridge0
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B2-5-1 Console, Cab Servo Control, Right Hand
13***3ZScrew2
13***3ZScrew4
13***7ZBolt, High Strength; Replaces 60***07,60***7r4
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B2-10-1 Floor Components, Seat Slide, Lever Isolator
13***5ZScrew, M10 X 204
13***8ZCapscrew8
14***1ZWasher, M16 Plain1
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B2-6-1 Wash/Wipe, Windscreen
13***1ZNut2
14***5ZWasher, M5; Replaces 69***592
14***5ZWasher, Spring, M52
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B3-5-1 Tipping Link, & Linkage
17***VRNut, High Strength4
33***96Pin, Locking1
60***6ZBolt1
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B3-2-1 Dipper 1.91m
17***VRNut, High Strength2
33***02Ram, Bucket, 115mm Cyl X 85mm Rod1
33***16Dipper, 1.91m Arm1
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B3-11-1 Boom, Upper, Triple Articulating
17***VZNut6
17***VZNut; Replaced By 172r024vz, San 120881
33***95Boom, Tab Upper1
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B3-3-1 Link, Transportation
33***17Link, Transport, Js160, Js210; Replaces Krp16931
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B3-12-1 Excavator, Shims
82***79Shim, 91mmx160mmx0.8mm0
JR***82Shim, 0.8mm Thick0
KS***68Shim, 91mmx160mmx1.2mm0
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B3-10-1 Boom, Lower, Triple Articulating
17***VZNut8
17***VDNut4
21***59Boom, Lower, Bushed1
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B3-4-1 Boom Greasing
13***8ZScrew; Replaces 60***8r7
14***7ZWasher, Spring7
JH***37Nipple, Grease, Straight6
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B3-2-20 Dipper 3.0m
17***VRNut, High Strength2
33***02Ram, Bucket, 115mm Cyl X 85mm Rod1
33***18Dipper, 3.0m Arm1
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B3-2-10 Dipper 2.4m
17***VRNut, High Strength2
33***02Ram, Bucket, 115mm Cyl X 85mm Rod1
33***17Dipper, 2.4m Arm1
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B3-1-1 Boom
17***VZNut20
17***VZNut; Replaced By 172r024vz, San 120884
21***75Boom, Jz235, Jz2551
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B5-2-1 Decals, Warning
33***56Label Decibel 78 Lpa1
33***96Label, Warning Sign Engine Bay1
33***93Decal, Warning Sign Eu Multiple1
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B5-1-1 Decals, Machine
33***73Label, Isuzu Engine Emission, Chinese1
81***22Decal, Jcb Insignia (Black)2
81***41Decal, Counterweight1
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B5-5-1 Paint
42***01Thinners, 1 Litre, 2-Pack1
42***03Thinners, 5 Litre, 2-Pack1
42***40Paint, Gloss, 0.5 Litre, Two Pack Yellow0
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B5-1-10 Decals, Machine, Jz235r
81***22Decal, Jcb Insignia (Black)2
81***41Decal, Counterweight1
81***61Decal, Cab, Under Front Window1
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B5-25-1 Guide Charts, Ams
81***56Label, Chart, Guide Wallet1
81***01Label, Guide Chart Ams1
81***02Label, Guide Chart Ams1
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B5-3-1 Decals, Warning, Usa Build
21***36G.A., Usa -Territory Speci1
33***15Decal, Warning Diesel, No Naked Flame1
81***97Label, Danger, Fluid Under Pressure1
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C Electrics-Machine, Cab & Engine
C1-5-1 Pump, Diesel, Refuelling
13***5ZBolt, M5 X 20mm Long2
13***7DScrew2
13***8DSetscrew2
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C1-4-1 Light, Working, Cab & Rear
12***05Bracket3
13***5ZScrew, Hexagon M8 X 20mm Long5
13***5DScrew, Set3
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C1-6-1 Alarm, Reverse
13***5ZBolt2
13***3ZNut, Self Lock, M62
14***6ZWasher, M62
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C1-4-10 Lights, Working, Frame & Boom Mounted
12***05Bracket2
13***9ZScrew2
14***7ZWasher, Plain, M8; Replaces Khn1550, San 126202
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C1-2-1 Electrics, Cab
13***5DSetscrew, M10 X 203
13***5DScrew, Set4
13***5DBolt1
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C1-1-1 Electrics, Machine
13***5DSetscrew, M8x204
13***1DScrew2
13***3DScrew3
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C1-3-1 Battery Installation, 24 Volt
13***1DScrew, Set M6x123
13***1DSetscrew, M8 X 12mm4
13***7DSetscrew, M8x252
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C2-4-1 Alternator
C2-2-1 Ecu Harnesses
02***86Tie, L=2501
02***53Tie, Cable1
02***03Bracket, Harness Hanger1
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C2-5-1 Mountings & Fittting, Alternator &, Starter Motor
02***17Nut1
02***22Bolt1
02***25Bolt1
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C2-1-1 Electrical Equipment
02***11Thermostat, 'A'1
02***12Thermostat, 'B'1
70***00Switch, Temperature Sender, M161
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C2-3-1 Motor, Starter
C2-1-2 Engine, Control Module
13***5DSetscrew, M10 X 203
14***8DWasher, M103
21***54Assembly, Module, Engine Control1
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C3-12-20 Combi Unit
30***05Actuator, 12v1
30***15Relay, 24v Spst2
30***16Pipe, Water In1
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C3-7-1 Fuse Box
33***46Fuse, Box1
71***03Fuse, 5 Amp1
71***05Fuse, 10 Amp, Fuse, 10 Amp; In Line Fuses In Roof Harness For Auxiliary Sockets. Access Via Draft Control Panel.6
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C3-5-20 Heater Unit
30***05Actuator, 12v1
30***15Relay, 24v Spst2
30***16Pipe, Water In1
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C3-15-1 Front Wiper, Cab Lower Window
13***7ZBolt, High Strength; Replaces 60***07,60***7r2
14***8ZWasher, Plain M10; San 23620 Ref Dave Bickerton Confirms Identic, Al To 33***8z Rationalise Parts2
14***3ZScrew4
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C3-9-1 Light, Beacon, Hazard Warning, Optional
70***00Beacon, Magnetic 24 Volt, Amber1
70***01Lens, Amber, 121mm Dia1
71***00Socket, Beacon1
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C3-12-10 Air Con Unit
21***18G.A., Air Con Kit Jz2351
30***97Washer, M31
30***98Grommet5
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C3-2-1 Switch Panel, Side Console, Right Hand
13***1ZNut2
14***4ZWasher, M4; Replaces Khn0424, San 123522
33***36Knob, Throttle Control; Replaces 33***11, San 127311
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C3-12-1 Air Con
12***99Compressor, 24v1
13***5DSetscrew, M8x204
13***5ZScrew4
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C3-5-10 Heater Unit
30***95Clip, Fastener1
30***98Grommet4
30***00Screw60
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C3-5-0 Heater, Installation
21***00Heater, Assembly1
30***63Unit, Heater Control1
30***73Unit, Heater Control Panel1
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C3-14-1 Cigar Lighter
33***81Ashtray1
71***00Lighter, Cigarette, 12 Volt1
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C3-5-1 Heater
13***5ZScrew, M10 X 204
14***8ZWasher, Plain M10; San 23620 Ref Dave Bickerton Confirms Identic, Al To 33***8z Rationalise Parts4
22***05Clip, Jubilee4
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C3-12-11 Air Conditioning, Unit
30***97Washer, M31
30***98Grommet5
30***00Screw59
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C3-20-1 System, Tracked, Gps
12***10Sensor, Livelink, Row, Gprs Network1
13***5DSetscrew, M10 X 203
13***3DNut, M6 Lock3
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C3-11-1 Radio
13***3ZNut1
14***5ZWasher, M5; Replaces 69***591
71***00Radio, Cassette Unit, 12 Volt; Now Nla By Product Department - See Api 183 F, Or Replacement Details1
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D Controls-Machine, Engine
D1-1-1 Controls, Excavator, Cab Floor, Mountings
13***5DScrew, Set4
13***3DScrew4
13***5DBolt4
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D2-2-1 Controls, Throttle & Stop, Cab
13***1ZNut2
14***4ZWasher, M4; Replaces Khn0424, San 123522
21***56Assembly, Console Box1
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E Hydraulics & Air
E1-33-1 Circuit, Auxiliary, Hammer, 1.91m Dipper
13***7ZBolt; Replaces 60***172
13***9ZBolt; Replaces 60***192
14***26Washer, Seal1
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E1-45-10 Circuit, Dozer Lines, Lower
13***8DScrew4
13***3DBolt4
13***1DNut4
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E1-7-1 Circuit, Drain Line
13***5DBolt4
13***7DSetscrew, M12 X 25 Grade 10.92
33***35Manifold1
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E1-32-10 Circuit, Auxiliary, Low Flow, Monoboom
13***4DBolt, M12 X 601
13***3DBolt, M16 X 55mm8
33***53Pipe, Lowflow Feed, Left Hand Side1
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E1-62-1 Circuit, Valve, Lh Controller
16***52Adaptor, 3/8bsp X 9/16 Sae5
24***05O Ring2
25***94Valve, Hand Control, Left Hand; Replaces 25/22***36 San 140561
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E1-66-1 Circuit, Valve, Shuttle
13***7DScrew6
14***8DWasher, M106
21***41G.A., Pilot Control Line1
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E1-32-1 Circuit, Auxiliary, Hammer, Monoboom
13***6DBolt, M12 X 701
13***7DBolt, M16 X 754
13***9DBolt, M16 X 90mm4
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E1-31-1 Circuit, Auxiliary, Low Flow Mainframe
13***8DSetscrew2
13***8DScrew2
13***7DBolt3
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E1-33-10 Circuit, Auxiliary, Hammer, 2.4m Dipper
13***7ZBolt; Replaces 60***172
13***9ZBolt; Replaces 60***192
14***26Washer, Seal1
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E1-5-1 Circuit, Track, Undercarriage
27***06Tie, Cable 385mm Long8
JS***38Hose, Yellow2
KT***78Hose, 1/4" Bsp St-St 2800mm; Replaces Ktj0810, Lh Travel. Port Pb1 To Travel Pedal Port 1. Lh Track Forward., Hose, 1/4" Bsp St-St 2800mm; Replaces Ktj0810, Hose, 1/4" Bsp St-St 2800mm; Replaces Ktj0810, Rh Travel. Port Pb6 To Travel Pedal Port 4. Right Hand Track Forward., Hose, 1/4" Bsp St-St 2800mm; Replaces Ktj0810, Port 4 To Main Control Valve Port Pb6. Right Hand Track Forward., Hose, 1/4" Bsp St-St 2800mm; Replaces Ktj0810, Port C8 To Main Control Valve Port Pc3. Swing Priority, Hose, 1/4" Bsp St-St 2800mm; Replaces Ktj0810, Port 2 To Main Control Valve Port Pb1. Left Hand Track Forward.2
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E1-23-10 Circuit, Bucket Ram, Tab Boom
13***4ZBolt4
13***6ZBolt3
14***9ZWasher, Spring M12; Replaces 60***09, San 13190, If Fitted. Item 12 Reduced In Length. Spring Washer Not Required With Shorter Capscrew, Washer, Spring M12; Replaces 60***09, San 131904
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E1-46-1 Circuit, Hammer Control, Mainframe Posstion Ram Tab Boom
13***3DScrew2
13***7DScrew2
14***8DWasher, M102
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E1-2-1 Circuit, Neutral Pressure
13***9DBolt, Grade 12.92
13***0DScrew8
13***9DBolt2
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E1-63-1 Circuit, Valve, Rh Controller
16***03Adapter5
16***52Adaptor, 3/8bsp X 9/16 Sae5
21***41G.A., Pilot Control Line1
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E1-53-1 Circuit, Auxiliary, Low Flow, 2.4 Arm Bucket & Grab Changeover Valve
13***0ZBolt, M10x40; Replaces 60***0r2
13***1ZBolt; Replaces 60***1r1
13***0ZCapscrew16
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E1-71-1 Circuit, Return Line, Pilot Pressure, Main Control Valve
25***11Valve, Main Control, Mono Boom1
25***12Valve, Main Control, Dozer Option & Tab1
62***82Hose1
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E1-3-1 Circuit, Neutral, Return & Oil Cooler
13***7DScrew6
13***1DNut, M10 High Strength8
13***9DCapscrew, M12 X 35lg32
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E1-26-10 Circuit, Dipper Ram, Hbcv Feed & Return, Tab Boom
21***03G.A, Arm Cyl Line Hbcv1
33***75Plate, Bulkhead1
61***40Hose, Hose; Hrc Only White:11 Stat Valve Port P1 To Cab Manifold Port P1. Hrc = Hydraulic Raised Cab1
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E1-30-20 Circuit, Hammer, Control, Mainframe
13***3DScrew2
13***7DScrew2
14***8DWasher, M102
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E1-33-20 Circuit, Auxiliary, Hammer, 3.00m Dipper
13***7ZBolt; Replaces 60***172
13***9ZBolt; Replaces 60***192
14***26Washer, Seal1
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E1-35-1 Circuit, Test Points
13***7DScrew4
14***08Seal, Washer4
14***8DWasher, M104
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E1-6-1 Circuit, Swing
13***8DCapscrew, M10x308
13***9DCapscrew, M10x354
13***2DCapscrew, M10x504
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E1-61-1 Circuit, Valve, Track Control
CN***84Adapter1
KN***58Adapter1
KT***13Hose, 1/4" Bsp St-St 3550mm2
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E1-1-1 Circuit, Pump Suction
13***1DBolt, M12 X 110, 10.94
13***09Capscrew4
24***23O Ring1
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E1-32-20 Circuit, Auxiliary, Hammer & Low Flow, Monoboom
13***4DBolt, M12 X 601
13***6DBolt, M12 X 701
13***7DBolt, M16 X 754
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E1-9-1 Circuit, Fan Drive
13***2DBolt2
13***8DCapscrew, M10x304
14***6DWasher, M6 Plain2
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E1-21-1 Circuit, Dipper & Bucket, Mainframe
13***7DScrew2
13***8DScrew, M16x30mm2
13***4DBolt M8x601
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E1-11-1 Circuit, Pump, Pilot Pressure, & Return Line
13***8DScrew4
13***8DBolt2
14***9DWasher, M124
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E1-69-1 Circuit, Tank Manifold
13***7DSetscrew, M12 X 25 Grade 10.92
21***40G.A., Pilot Press & Return1
21***41G.A., Pilot Control Line1
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E1-65-1 Circuit, Valve, Cushion
13***7DSetscrew, M12 X 25 Grade 10.92
14***9DWasher, M122
25***41Valve, Cushion; Replaces Krj38891
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E1-60-2 Kit, Installation, Quickhitch
33***21Clamp, Hose (Double), Assembly6
33***92Harness, Miller Quickhitch1
33***69Dipper Block Assembl1
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E1-3-2 Circuit, Neutral, Return & Oil Cooler
13***7DScrew4
13***1DNut, M10 High Strength6
13***9DCapscrew, M12 X 35lg32
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E1-32-30 Circuit, Auxiliary, Low Flow, Tab Boom
13***0DBolt4
13***3ZBolt; Replaces 60***3r,60***138
13***4DBolt, M12 X 601
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E1-68-1 Circuit, Manifold, Under Cab
13***1DBolt, M8 X 1102
14***7DWasher, M8 Plain2
33***56Manifold, Cab Pilot, Aluminium; Replaces 45/92***781
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E1-25-1 Circuit, Boom Overload, Monoboom & Tab Boom
13***8DBolt2
14***6DWasher, M6 Plain2
33***84Manifold1
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E1-26-1 Circuit, Dipper Ram, Hbcv Feed & Return, Monoboom
13***4DBolt2
33***96Bracket, Hbcv Bulkhead1
61***41Hose1
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E1-20-1 Circuit, Boom Rams, Mainframe
13***7DSetscrew, M12 X 25 Grade 10.92
13***5DBolt1
13***3DNut1
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E1-22-10 Circuit, Dipper Ram, Tab Boom
13***9DBolt, Grade 12.92
13***4DBolt, M12 X 601
13***5DBolt1
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E1-33-40 Circuit, Auxiliary, Hammer, 3.00m Dipper C/W Shut Off Valve
13***6ZBolt4
13***4ZBolt; Replaces 60***141
13***7ZBolt; Replaces 60***171
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E1-30-1 Circuit, Auxiliary, Hammer Combined, Mainframe
13***5DScrew, Set4
13***7DSetscrew, M12 X 25 Grade 10.92
13***7DBolt2
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E1-29-1 Circuit, Hammer, Mainframe
13***5DScrew, Set4
13***8DScrew2
13***7DBolt2
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E1-29-10 Circuit, Hammer Control, Mainframe
13***3DScrew2
13***7DScrew2
13***09Capscrew, M6 X 352
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E1-53-10 Circuit, Auxiliary, Low Flow, 3.0 Arm Bucket & Grab Changeover Valve
13***0ZBolt, M10x40; Replaces 60***0r2
13***1ZBolt; Replaces 60***1r1
13***0ZCapscrew16
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E1-14-1 Circuit, Dual Controls, Standard Usa, Optional Uk World
13***3DScrew4
13***5ZCapscrew2
14***7ZWasher, Plain, M8; Replaces Khn1550, San 126206
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E1-67-1 Circuit, Valve, Solenoid
62***01Hose, 3/81
62***11Hose1
JH***50Accumulator1
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E1-4-1 Circuit, Track, Mainframe
13***7DScrew4
13***6DBolt, M12 X 702
13***3DNut2
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E1-32-40 Circuit, Auxiliary, Hammer, Tab Boom
13***0DBolt4
13***6DBolt, M12 X 701
13***7DBolt, M16 X 754
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E1-30-10 Circuit, Hammer, Auxiliary Control, Mainframe
13***3DScrew2
13***7DScrew2
13***0DCapscrew, M6 X 402
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E1-72-1 Circuit, Swing Shut Off
25***66Valve, Dual Controls1
64***64Hose1
81***27Adapter1
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E1-45-1 Circuit, Dozer Lines, Mainframe
13***3DCapscrew2
13***5DCapscrew; Replaces 82***452
14***7DWasher, M8 Plain4
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E1-23-1 Circuit, Bucket Ram, Monoboom
13***4DBolt, M12 X 604
33***48Pipe, Bucket Ram Rod Side1
33***49Pipe, Bucket Ram Head Side1
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E1-22-1 Circuit, Dipper Ram, Monoboom
13***6DBolt, M16 X 70mm4
13***9DCapscrew, M10x354
13***1DCapscrew4
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E1-33-30 Circuit, Auxiliary, Hammer, 2.4m Dipper C/W Shut Off Valves
13***6ZBolt4
13***4ZBolt; Replaces 60***141
13***7ZBolt; Replaces 60***171
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E1-70-1 Circuit, Pilot Line, Main Control Valve
21***41G.A., Pilot Control Line1
25***11Valve, Main Control, Mono Boom1
25***12Valve, Main Control, Dozer Option & Tab1
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E1-8-1 Circuit, Bypass, Hydraulic Filter
13***7DCapscrew6
14***7DWasher, M8 Spring6
24***61O Ring1
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E2-3-2 Pump, Fan Drive
E2-6-1 Motor, Track
05***99Motor, Track1
20***74Shaft, Motor Drive1
20***03Motor Seal Ring, Track Motor/Gearbox1
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E2-2-1 Pump, Piston, Main Hydraulic, & Components
13***10Capscrew8
20***94Pump, Main Hydraulic1
20***31Valve, Proportional, Reducing1
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E2-7-1 Motor, Swing
13***14Screw, Cap4
20***09Motor, Swing1
82***29O Ring, To Suit 187.4 Groove; Ref. Andrew Riley-Wrexham I/D=183.75, Replaces Lbq5263 San 122752
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E2-1-1 Pump, Main Hydraulic
13***8DSetscrew7
20***94Pump, Main Hydraulic1
20***40Mounting, Flange1
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E2-8-1 Motor, Fan Drive
E2-6-10 Motor, Track, 51 Link Track
20***20Hydraulic Motor, Track Motor/Gearbox1
20***74Shaft, Motor Drive1
20***03Motor Seal Ring, Track Motor/Gearbox1
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E2-3-1 Pump, Fan Drive
20***42Pump, Main Hydraulic1
33***45Seal, Element2
33***46Seal2
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E3-8-1 Valve Components, Solenoid
25***13Valve, Shuttle1
25***33Kit, Seal1
25***55Cartridge, Valve, Excl. Coil; Part No. Duplication,Replaced By 69***57., Requested By S Waterhouse/P Wallace8
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E3-2-1 Valve, Control, Components, Fig 1, Mono Base Machine
25***90Plug, Assembly8
25***81O Ring, Seal27
25***94Valve, Relief 39.27
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E3-6-1 Valve, Hand Control, Servo
16***52Adaptor, 3/8bsp X 9/16 Sae5
25***80Plate1
25***91Valve, Hand Controller, Left Hand1
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E3-14-1 Coupling, Rotary
13***8DScrew12
13***05Capscrew, M8 X 202
14***11Seal, Bonded6
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E3-19-1 Valve, Directional Control
25***01Coil, Solenoid Valve2
25***69Plate, Sub, Assembly1
35***01Kit-Seal, Solenoid Valve1
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E3-2-40 Valve, Control, Components, Fig 5, Mono Base Machine
25***35Seat, Spring2
25***90Plug, Assembly8
25***91Plug, Assembly7
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E3-16-1 Filter, Hydraulic, Auxiliary Circuit
32***41Filter, Return Line1
69***51Element, Filter1
69***41Kit-Seal, Filter1
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E3-15-11 Oils, Biodegradable, Hydraulic
40***23Fluid, Hydraulic, 25 Litres, Biodegradable, Fluid, Hydraulic, 25 Litres, Biodegradable; See Note 1. Use Up To Maximum Of 40 Degrees Centigrade Ambient Temperature.1
40***24Fluid, Hydraulic 205 Litres, Biodegradable1
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E3-2-20 Valve, Control, Components, Fig 3, Mono Base Machine
25***30Valve, Poppet5
25***31Spring6
25***39Seal, O-Ring2
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E3-17-1 Filter, Bypass, Hydraulic
13***1DNut, M82
13***5DCapscrew; Replaces 82***458
13***7DCapscrew2
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E3-9-1 Valve, Shuttle
25***13Valve, Shuttle6
25***30Valve, Shuttle Assembly1
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E3-8-2 Valve Components, Solenoid
33***17Coil8
33***66Valve, Cartridge8
33***67Valve1
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E3-2-30 Valve, Control, Components, Fig 4, Mono Base Machine
25***30Valve, Poppet5
25***31Spring6
25***39Seal, O-Ring2
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E3-7-1 Valve, Track Control, Hand And Foot
60***13Capscrew2
KS***65Valve, Remote Control1
LS***14Spring4
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E3-18-1 Valve, Priority, Flow Control, Grab Rotate, Weed Cutter
21***92G.A., Priority Valve 251
21***93G.A., Priority Valve 501
25***87Valve, Dual Priority1
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E3-13-1 Valve, Cushion
25***41Valve, Cushion; Replaces Krj38891
34***55Kit, Repair1
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E3-1-10 Valve, Assembly, & Mounting, Dozer Option & Tab Boom
13***9DScrew4
25***12Valve, Main Control, Dozer Option & Tab1
JH***43Washer, M164
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E3-1-1 Valve, Assembly, & Mounting, Monoboom
13***9DScrew4
25***11Valve, Main Control, Mono Boom1
JH***43Washer, M164
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E3-7-10 Valve, Auxiliary, Foot Control
92***39Valve, Hammer, Auxiliary, Foot Operated1
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E3-2-10 Valve, Control, Components, Fig 2, Mono Base Machine
25***30Valve, Poppet5
25***31Spring6
25***33Seal, O Ring2
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E3-20-1 Valve, Solenoid, Dual Controls
25***37Cartridge, Solenoid Valve2
25***66Valve, Dual Controls1
25***63Coil, 24v1
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E3-15-1 Lubricants & Filters
02***81Element, Oil Filter, Cartridge, Element, Oil Filter, Cartridge; M/C'S Fitted With Tier 2 Engines See Footnote. M/C With T2 Engines M703785-70***87,70***90-70***93,70***95,70***96,70***23,70***25 & 70***28.1
32***40Element, Filter Bypass, Plexus1
32***38Element, Fuel Filter, Cartridge1
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E4-2-1 Ram, Dipper, Standard, Assembly
13***0ZBolt2
13***3ZBolt; Replaces 60***3r,60***131
13***1ZNut, M122
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E4-4-10 Ram, Boom, Right Hand Standard, Assembly Tab Boom
13***0DBolt2
13***4DBolt, M12 X 601
13***1DNut, M10 High Strength2
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E4-2-20 Ram, Dipper, Components
33***13Ram, Dipper Arm, 130mm Cyl X 95mm Rod1
33***46Cylinder, 130mm I Dia1
33***47Kit-Ram Seal, 130 X 951
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E4-7-20 Ram, Boom Position, Components Tab Boom
13***18Capscrew14
33***37Wiper, Pin Bushing; Replaces Lau00472
33***47Pin Bushing; Replaces Lku0049, San 131781
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E4-4-20 Ram, Boom, Left Hand Assemly, With H.B.C.V. Tab Boom
13***0DBolt2
13***4DBolt, M12 X 601
13***1DNut, M10 High Strength2
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E4-1-40 Ram, Boom, Components, Standard & Hbcv Monoboom
33***41Pin Bushing; Replaces Lku01201
33***49Pin Bushing; Replaces Lku01191
33***14Ram, Boom, 125mm Cyl X 85mm Rod2
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E4-3-10 Ram, Bucket, 115mm Cyl X 85mm Rod, Components
33***02Ram, Bucket, 115mm Cyl X 85mm Rod1
33***90Seal, Cushion1
33***34Head, Piston1
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E4-4-11 Ram, Boom, Right Hand Standard, Tab Boom
13***0DBolt2
13***6DBolt, M12 X 701
13***1DNut, M10 High Strength2
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E4-2-10 Ram, Dipper, H.B.C.V. Assembly
13***0DBolt, M12x40, Grade 10.92
13***3DBolt1
13***1DNut2
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E4-3-1 Ram, Bucket, Pipework
13***0DBolt2
13***2ZBolt, M12x501
13***1ZNut, High Strength, M102
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E4-4-30 Ram, Boom, Right Hand Assembly, With H.B.C.V. Tab Boom
13***0DBolt2
13***4DBolt, M12 X 601
13***1DNut, M10 High Strength2
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E4-1-30 Ram, Boom, Right Hand Assembly, With H.B.C.V. Monoboom
13***0DBolt2
13***4DBolt, M12 X 601
13***1DNut, M10 High Strength2
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E4-4-40 Ram, Boom, Components, Standard & Hbcv Tab Boom
33***41Pin Bushing; Replaces Lku01201
33***49Pin Bushing; Replaces Lku01191
33***23Head, Assembly, Boom Ram1
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E4-7-1 Ram, Boom Position, Non-Hbcv, Assembly, Tab Boom
13***0DBolt2
13***3DBolt1
13***3ZNut2
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E4-4-1 Ram, Boom, Left Hand Standard, Assembly Tab Boom
13***0DBolt2
13***4DBolt, M12 X 601
13***1DNut, M10 High Strength2
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E4-1-1 Ram, Boom, Left Hand Standard, Assembly Monoboom
13***0DBolt2
13***4DBolt, M12 X 601
13***1DNut, M10 High Strength2
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E4-8-1 Ram, Dozer Blade, Assembly
33***97Rod, Piston Assembly1
33***98Piston1
33***99Guide, Piston Rod1
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E4-1-20 Ram, Boom, Left Hand Assemly, With H.B.C.V. Monoboom
13***0DBolt2
13***4DBolt, M12 X 601
13***1DNut, M10 High Strength2
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E4-4-2 Ram, Boom, Left Hand Standard, Tab Boom
13***0DBolt2
13***6DBolt, M12 X 701
13***1DNut, M10 High Strength2
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E4-7-10 Ram, Boom Position, Tab Boom
13***0DBolt2
13***3DBolt1
13***3ZNut2
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E4-1-10 Ram, Boom, Right Hand Standard, Assembly Monoboom
13***0DBolt2
13***4DBolt, M12 X 601
13***1DNut, M10 High Strength2
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F Track/Slew Gearbox
F4-1-10 Gearbox, Assembly & Sprocket
13***4ZBolt; Replaces 60***1452
13***5ZBolt44
20***65Motor, & Gearbox2
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F4-2-10 Gearbox, Track
20***65Motor, & Gearbox2
20***20Hydraulic Motor, Track Motor/Gearbox1
20***87Cover, Assembly, Track Motor/Gearbox; Replaced By 05/90***21, See San 213691
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F4-5-1 Circuit, Swing Ring Greasing
13***1DScrew2
14***6DWasher, M6 Plain2
JH***37Nipple, Grease, Straight3
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F4-1-1 Gearbox, Assembly & Sprocket
13***3ZBolt, M16x5552
13***5ZBolt44
20***18& Track Motor2
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F4-2-1 Gearbox, Track
05***26Pad, Thrust1
05***63Capscrew10
05***02Plug, Breather; Replaces 05/90***222
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F4-4-1 Gearbox, Swing
05***21Gear, Reduction Assembly1
05***22Gear, Sun1
05***61O Ring2
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F4-3-1 Motor, Swing &, Slew Ring Equipment
13***7DSetscrew, M12 X 25 Grade 10.93
13***7DBolt11
13***8DBolt;High Strength36
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J Track & Running Gear, Undercarriage
J1-8-1 Step Extension, 49 Link & 51 Link, 800mm & 900mm Grouser
13***4ZBolt16
13***3ZNut, M1216
JB***00Step, Extension; Replaces Jra02004
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J1-7-10 Recoil & Idler Assy, 51 Link
JB***40Piston1
JB***28Assembly, Recoil & Tensioner, C/W Idler Wheel2
JB***30Yoke, Spring And Fork, Assembly1
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J1-9-1 Cover, Lower, Undercarriage
13***1DBolt, M12 X 458
JH***42Washer, Plain8
KR***14Cover, Under2
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J1-1-20 Undercarriage, 49 Link
13***5ZScrew, M12x20; Replaces 60***5r3
13***9ZBolt8
13***2ZBolt8
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J1-5-20 Chain, Track, Grouser, 49 Link Heavy Duty Grouser Jz235lc
15***75Plate, Track, 600mm Grouser, Right Hand Offset49
15***76Plate, Track, 600mm Grouser, Left Hand Offset49
33***74Chain, Track Assembly, 49 Link1
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J1-5-10 Chain, Track, Grouser, 49 Link Jz235lc
15***75Plate, Track, 600mm Grouser, Right Hand Offset49
15***76Plate, Track, 600mm Grouser, Left Hand Offset49
33***74Chain, Track Assembly, 49 Link1
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J1-3-10 Roller, Track Bottom, 51 Link Chain
13***0DBolt, M18 X 130mm72
32***29Plug, Tapered1
33***22Seal, Assembly2
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J1-6-1 Recoil Unit
13***3ZScrew; Replaces 60***032
13***2ZBolt; Replaces 60***2r8
21***31Spring, Recoil Assembly2
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J1-10-10 Dozer Blade, 700 Mm Track Plates
13***8DScrew2
13***6DBolt, M12 X 702
17***VDNut12
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J1-5-30 Chain, Track, Grouser, 51 Link
33***72Chain, Track Assembly, 51 Link1
33***78Chain, Track Assembly, 700mm Std Grouser2
33***79Chain, Track Assembly, 800mm Std Grouser2
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J1-2-1 Idler Wheel
21***30Wheel, Track Idler Assembly2
33***63Bracket, Idler Mounting2
82***25Pin, Spring2
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J1-2-10 Idler Wheel, 51 Link Undercarriage
82***92O Ring2
JB***36Hub2
JR***26Plug1
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J1-5-40 Chain, Track, Grouser, 51 Link Heavy Duty Grouser
33***72Chain, Track Assembly, 51 Link1
33***40Chain, Track Assembly, 900mm H/D Grouser2
33***73Chain, Track Assembly, 600mm H/D Grouser2
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J1-4-1 Roller, Track Top
13***2ZBolt8
32***29Plug, Tapered1
33***41Roller, Assembly, Track Top4
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J1-10-1 Dozer Blade, 600mm Track Plates
13***8DScrew2
13***6DBolt, M12 X 702
17***VDNut12
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J1-5-1 Chain, Track, Grouser, 46 Link
15***75Plate, Track, 600mm Grouser, Right Hand Offset46
15***76Plate, Track, 600mm Grouser, Left Hand Offset46
33***75Chain, Track, 46 Link1
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J1-6-10 Recoil Unit, 51 Link Undercarriage
13***3ZScrew; Replaces 60***032
13***2ZBolt; Replaces 60***2r4
60***7ZCapscrew1
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J1-1-10 Undercarriage, 51 Link Track
13***5ZScrew, M12x20; Replaces 60***5r3
13***9ZBolt8
13***2ZBolt8
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J1-1-1 Undercarriage, 46 Link
13***5ZScrew, M12x20; Replaces 60***5r3
13***9ZBolt8
13***2ZBolt8
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J1-3-1 Roller, Track Bottom
13***9DBolt, M18 X 9064
32***29Plug, Tapered1
33***39Roller, Assembly, Track Bottom16
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J1-7-1 Recoil & Idler Assy
21***29Spring, Recoil & Tensioner, C/W Idler Assembly2
21***30Wheel, Track Idler Assembly1
21***31Spring, Recoil Assembly1
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W Engine, 4hk1xysj-01 Tier 3
W1-6-1 Timing Case, & Front Cover
02***82Gasket, Gear Case, To Cylinder Block1
02***02Bolt, L=553
02***67Valve1
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W1-6-2 Camshaft, & Timing Gears
02***09Washer, Cam1
02***69O Ring1
02***08Bolt, Camshaft Gear1
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W1-5-2 Fan, Cooling
13***5DBolt4
14***8DWasher, M104
21***30G.A., Radiator Jz2201
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W1-3-1 Block Assembly
02***79Plug, O/D = 22mm3
02***93Pin4
02***97Pin, Set Cylinder Head2
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W1-5-1 Pulleys, & Fan Belt
02***92Bolt, Crankshaft Pulley4
02***30Pulley, Crankshaft1
02***36Belt, Fan1
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W1-7-1 Flywheel & Housing
02***69O Ring1
02***47Plate, Clamping1
02***26Gear, Flywheel Ring1
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W1-8-1 Engine Mountings
13***7DScrew8
13***1DSetscrew, M16 X 458
13***4DBolt, M16 X 1404
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W1-4-1 Crankshaft, Bearings, Pistons & Con-Rods
02***54Washer, Thrust1
02***55Washer, Thrust2
02***58Bolt, Con-Rod8
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W1-1-1 Engine, Complete, 4hk1xysj-01 T3
01***85Engine, Complete, 4hk11
21***26G.A., Engine Jz2351
33***73Label, Isuzu Engine Emission, Chinese1
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W2-2-1 Rocker Assembly, Inlet/Exhaust Valves
02***71Seal, Valve Stem16
02***77Collar, Split32
02***28Valve, Inlet8
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W2-4-1 Oil Separator
01***43Strainer, Oil Separator1
01***57Hose, Oil Drain1
01***58Clip, Hose2
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W2-1-1 Cylinder Head
02***87Stud, M10 X 60 L=752
02***91Stud, Camshaft Bracket, M8 X 41 L=668
02***92Stud, Camshaft Bracket, M8 X 54 L=792
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W2-6-1 Lifting Plates, Engine
02***72Bolt, Flange Head, M10 X 202
02***57Plate, Lift Front1
02***33Bolt3
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W2-3-1 Rocker Cover
02***75Plate, Oil Baffle1
02***78Seal, Oil Filler Cap1
02***79Cap, Engine Oil Filler1
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W3-4-1 Exhaust System
01***60Gasket, Turbo To Exhaust1
13***0DBolt3
13***1DNut, M8 High Stress8
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W3-3-3 Air Filter
21***22G.A, Air Cleaner Jz2200
32***06Label1
32***03Valve, Dust1
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W3-1-1 Manifold, Induction
02***61Gasket1
02***62Clip, Hose2
02***59Gasket1
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W3-5-1 Exhaust, Recirculation
02***38Nut3
02***62Gasket2
02***34Bolt1
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W3-3-2 Filter, Air
13***3DScrew1
13***8DScrew, M8x301
13***0DScrew2
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W3-3-1 Filter,Air
13***3DScrew1
13***8DScrew, M8x301
13***0DScrew2
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W3-2-1 Manifold, Exhaust
02***44Gasket1
02***79Clip2
02***69Spacer8
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W4-4-1 Combination Cooler, Assembly
13***5DSetscrew, M8x2015
13***5DSetscrew, M10 X 208
13***3DNut, Self Lock M88
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W4-6-1 Radiator, Hoses & Fittings
13***1DScrew, Set M6x122
13***1DNut, Plain2
14***6DWasher, M6 Plain2
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W4-3-1 Cooler, Fittings & Mountings
13***5DSetscrew, M8x203
13***7DScrew8
13***7DSetscrew, M12 X 25 Grade 10.914
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W4-8-1 Exhaust, Recirculation, Water Cooling
02***83Hose, Water Pipe2
02***43Nut, M84
02***67Clamp8
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W4-2-1 Thermostat, Housing, Inlet & Outlet
02***46Clip, Hose2
02***81Connector, Water Outlet1
02***82Gasket, Thermostat Housing2
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W4-1-1 Pump Water
02***43Nut, M82
02***20Bolt2
02***21Bolt2
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W4-7-1 Cooler, Air Charge, Hose & Pipework
13***7DScrew8
13***1DNut, M8 High Stress4
13***1DNut, M10 High Strength4
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W5-1-1 Sump, Oil, & Fittings
02***94Seal, Id=271
02***18Spacer1
02***48Gasket1
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W5-3-1 Oil Filter, Remote Mounted
02***81Element, Oil Filter, Cartridge, Element, Oil Filter, Cartridge; M/C'S Fitted With Tier 2 Engines See Footnote. M/C With T2 Engines M703785-70***87,70***90-70***93,70***95,70***96,70***23,70***25 & 70***28.1
13***7DScrew2
13***8DScrew2
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W5-4-1 Cooler, Engine Oil
02***33O Ring1
02***34O Ring2
02***35Adapter, Oil Port1
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W5-2-1 Pump, Oil
02***11Bolt, Flange Head, M8 X 25mm2
02***92Gear, Idler, Oil Pump1
02***14Bolt2
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W6-7-1 Filter, Fuel, Short 4 Micron
02***96Plug1
02***97Plug1
02***98Plug1
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W6-6-1 Filter, Fuel Sediment, 5 Micron
21***33G.A, Fuel Line Jz2201
32***08Bowl, Assembly1
32***33Seal, O'Ring1
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W6-4-1 Fuel System
13***5DSetscrew, M8x202
13***8DSetscrew2
13***3DScrew4
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W6-3-1 Fuel Pipes, Injection Pump
02***21Bolt, Banjo2
02***15Bolt, Banjo1
02***17Bolt1
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W6-2-1 Injectors, Fuel, & Injection Pipes
02***49Washer, Seal4
02***21Bolt, Banjo2
02***99Bolt4
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W6-1-1 Pump, Fuel Injection, Installation
02***16Stud, Water Pump1
02***24Key1
02***28Bolt1
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W6-8-1 Fuel Lift Pump
02***95Collar2
02***96Grommet2
17***00Pump, Fuel Feed1
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W6-7-2 Filter, Fuel, Long 2 Micron
02***96Plug1
32***39Gasket1
32***40Float, Water Level1
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W7-3-1 Turbo Pipework
02***87Gasket1
02***53Bolt, M10x28 Flanged1
02***18Bolt3
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W7-2-1 Turbocharger, Installation
02***38Nut5
02***13Stud9
02***94Gasket1
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W7-5-1 Compressor, & Installation, Air Conditioning
13***1DScrew, Set M6x121
13***8DBolt6
13***3DNut, Self Lock M102
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W7-1-1 Turbocharger
W7-6-1 Compressor 24volt, Air Conditioning
12***99Compressor, 24v1
14***67Cover, Bearing Dust1
26***84Coil, Field1
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W8-1-1 Gasket Set, Engine Overhaul
W8-1-2 Gasket Set, Engine Head

JZ255 serial number reference

The machine identification plate is located on the right-hand side of the upper structure or cab frame. Verify applicability with a JCB dealer using the full serial number, as the JZ255 shares serial ranges with the JZ235 and requires confirmation of the specific Tier 3 engine configuration (Isuzu 4HK1XYSJ-01).

PrefixIdentifies
01234500-01235499JZ255 Tier 3 tracked excavator; applies to both JZ235 and JZ255 models per factory parts catalogue and service manual documentation.
02084498-02084558JZ255 Tier 3 tracked excavator; specific serial range identified in JCB parts catalogue manual for engine block and sub-assembly components.

Frequently asked questions

What engine does the JCB JZ255 use?

The JCB JZ255 uses a JCB Dieselmax or Isuzu engine, producing up to 171 horsepower (128 kW).

What is the operating weight of the JCB JZ255?

The operating weight ranges from 22.98 tons (50,660 lb) to 25.9 tons (57,100 lb) depending on the configuration (NC, LC, or L).

What model replaced the JCB JZ255?

The JZ255 was succeeded by the JS220LC and JS240LC series in JCB's excavator lineup.

What JZ255 owners discuss

What engine powers the JCB JZ255, and are there known mechanical failures associated with its generation?
The JCB JZ255 LC variant utilizes an Isuzu engine producing up to 128 kW (171 hp). While the JZ255 series itself is not explicitly detailed for specific engine faults in the provided sources, general JCB engine troubleshooting guides identify early Dieselmax engines (Tier 2 and early Tier 3) as prone to big end bearing failures on the crankshaft if oil change intervals are stretched or oil quality is poor. Fuel injection pump faults are also common on these earlier mechanical and early electronic engines. The JZ255 NC (2010-2014) and JZ255 (2008-2022) models fall into later production runs where these specific early-generation bearing issues are less likely, but general JCB engine reliability depends on strict adherence to maintenance intervals. Have your dealer verify the specific engine generation and service history for the machine PIN.
What are the typical hydraulic system behaviors and common failure points for JCB excavators?
JCB hydraulic systems rely on high-precision components that require specific fluid standards to prevent downtime. Common issues reported across JCB machinery include blowing hydraulic hoses, which may result from regenerative pressure spikes or poor crimping quality rather than just age. Operators should monitor for slow hydraulic operation when the machine is on uneven ground, which can indicate the pump is not getting sufficient oil due to low fluid levels or a clogged strainer. The orbital steering valve is a known leak point on older JCB models. Use only JCB-branded hydraulic oil or verified equivalents to ensure proper filtration and additive protection. Have your dealer verify the hydraulic pump and valve condition during a pre-purchase inspection.
What undercarriage and wear patterns are typical for the JCB JZ255 series?
The JCB JZ255 is a crawler excavator with a track width of 600 mm. The JZ255 NC (2010-2014) has an operating weight of 22.98 tons, while the JZ255 (2008-2022) ranges up to 23.613 tons. The JZ255 L (2005-2013) weighs 25.9 tons. Undercarriage wear is influenced by the machine's weight class and ground pressure. Specific wear patterns for the JZ255 undercarriage are not detailed in the sources, but general heavy equipment maintenance emphasizes monitoring track tension and roller condition to prevent premature wear. The JZ255 tear-out force is listed as 155 kN. Have your dealer verify the remaining life of the undercarriage components, as this varies significantly by application.
What electrical or sensor issues are commonly discussed for JCB machines?
Electrical issues on JCB machinery often involve the ignition switch, fuses, and relays, which can cause starting difficulties. On older shuttle-drive models, intermittent forward operation is frequently caused by faulty microswitches on the forward/reverse lever that activate hydraulic solenoids on the transmission body. Engine control module malfunctions can also lead to power loss. For the JZ255, which is a later model, diagnostic tools are used to monitor engine functions and control module status. Have your dealer verify the integrity of the wiring harness and sensor connections, especially in high-vibration areas.
What is the recommended coolant maintenance interval and fluid type for JCB engines?
JCB coolant must be changed every 2,000 hours to prevent silicate separation, which can cause brown sludge in the expansion bottle and compromise corrosion protection. JCB recommends using their OAT (Organic Acid Technology) coolant range, which is designed for heat transfer efficiency, corrosion protection, and freeze/boil protection. Using non-approved fluids can lead to premature engine failure. Have your dealer verify the current coolant condition and system integrity before operation.
What are the key specifications for the JCB JZ255 NC and JZ255 LC variants?
The JCB JZ255 NC is a crawler excavator manufactured from 2010 to 2014 with an operating weight of 22.98 tons and a track width of 600 mm. The JCB JZ255 LC is a 23.33-ton machine powered by an Isuzu engine producing up to 128 kW (171 hp). The broader JZ255 series (2008-2022) has an operating weight of 23.613 tons, a tear-out force of 155 kN, and a dredging depth of 6.63 meters. The JZ255 L (2005-2013) weighs 25.9 tons. Specifications vary by configuration and series. Have your dealer verify the exact model variant and serial range for accurate specifications.
What should be checked when buying a used JCB JZ255?
When purchasing a used JCB JZ255, verify the serial number range (JZ235/255 service manual covers serial numbers the OEM part reference to the OEM part reference) to ensure correct parts and service information. Check the engine for signs of poor maintenance, such as stretched oil intervals that could lead to bearing failure. Inspect the hydraulic system for leaks, particularly at the orbital steering valve and hose crimps. Verify the condition of the undercarriage, noting the track width of 600 mm. Check the electrical system for faulty microswitches or control module issues. Have your dealer verify the machine's service history and perform a comprehensive pre-purchase inspection.

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 JZ255. Related factory variants of the same model family:

JZ255

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