Jcb 804 PLUS
JCBagriculturalmini crawler excavators

Jcb 804 PLUS

Maintenance schedule, common problems & OEM parts breakdown

The JCB 804 Plus is a mini excavator manufactured from 1995 to 1999. It weighs approximately 3.35 tons (7,730 lb) and features a 350 mm track width with a 1.5 m transport width. The machine is part of the JCB compact excavator lineage, covering the 802.7, 803, and 804 Plus and Super series. It is powered by a Perkins engine, with the 804 Plus specifically utilizing the Perkins 1103 engine series. Configurations included standard and Super variants, with the Super model starting from serial number the OEM part reference onwards. The 804 Plus serial range is the OEM part reference to the OEM part reference. It succeeded earlier micro excavators and was followed by the 804 Super.

Across the 802.7, 803, and 804 series, JCB introduced the 'Plus' and 'Super' designations to differentiate engine upgrades and hydraulic improvements. The 804 Plus marked a shift to more robust Perkins engines and enhanced hydraulic capacity compared to the 802.7. The machine matters in the used market due to its compact size, which allows access to confined residential and utility sites, and its durable Perkins engine, which is widely supported. The 804 Plus is often sought for its balance of power and transportability, with parts availability remaining strong due to its commonality with the 803 and 802.7 platforms.

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 804 PLUS specifications

Engine

Model403-15
Gross Power20.7 hp (15.4 kW)
Net Power19.8 hp (14.8 kW)
DisplacementNot documented for this exact serial range — verify with your dealer
CylindersNot documented for this exact serial range — verify with your dealer
Emissions TierNot documented for this exact serial range — verify with your dealer

Weights

Operating Weight7729.5 lb (3506 kg)
Shipping WeightNot documented for this exact serial range — verify with your dealer
Ground PressureNot documented for this exact serial range — verify with your dealer

Dimensions

Transport Length14.38 ft (4.38 m)
Transport Width7.06 ft (2.15 m)
Transport Height7.98 ft (2.43 m)
Track Gauge5.58 ft (1.70 m)
Ground Clearance1.2 ft (0.37 m)
Track Shoe Size13.78 in (350 mm)

Performance

Travel SpeedNot documented for this exact serial range — verify with your dealer
Max Digging Depth11.63 ft (3.54 m)
Max Cutting Height15.15 ft (4.62 m)
Max Loading Height11.39 ft (3.47 m)
Max Reach Along Ground17.07 ft (5.20 m)
GradeabilityNot documented for this exact serial range — verify with your dealer

Service capacities (summary)

Fuel Tank12.7 gal (48 L)
Hydraulic System18.5 gal (70 L)
Engine Oil1.4 gal (5.3 L)
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 804 PLUS 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 tracks for sag, roller condition, and damage.
  • Walk around machine for fluid leaks at engine bay, axles, and kingpost.
  • Inspect GET (bucket, teeth, cutting edge, pins) and quick-hitch keeper.
Every 250 h
  • Replace engine oil and oil filter.
  • Replace primary and secondary fuel filters.
  • Inspect and clean or replace air filter element.
  • Check alternator, A/C, and fan belt tension.
  • Grease all pivot points on boom, dipper, bucket, and kingpost.
  • Inspect hydraulic return filter magnet for metallic debris.
Every 500 h
  • Replace engine oil and oil filter.
  • Replace hydraulic return filter.
  • Take oil samples from engine, hydraulic, and axle systems.
  • Inspect track rollers and idlers for wear.
  • Check slew ring bolts for torque.
  • Inspect cylinder rods for scoring and hose fittings for weep.
Every 1,000 h
  • Replace engine coolant (drain, flush, refill).
  • Replace transmission oil and filter (if equipped).
  • Replace front and rear axle oil.
  • Perform full ECM diagnostic scan via ServiceMaster.
  • Interpret hydraulic oil sample against 500-hour baseline.
  • Inspect turbocharger shaft play and charge cooler boot condition.
Every 2,000 h
  • Replace hydraulic oil and clean tank.
  • Measure swing ring play (radial and axial).
  • Inspect structural components (boom, arm, chassis) for cracking.
  • Service brakes (disc wear and immersed brake condition).
  • Check injector spray pattern via diagnostic tool.
  • Service cab HVAC and replace cabin filter.

Servicing the 804 PLUS beyond the schedule

Predictive Maintenance & Fluid Analysis

At the 500-hour interval, take oil samples from the engine, hydraulic tank, and axle systems to establish a baseline. The JCB 804 Plus uses JCB Engine Oil Special or equivalent 15W-40 diesel oil meeting API specs. Inspect the hydraulic return filter magnet for metallic debris before disposal. Monitor coolant levels in the expansion tank daily. Use JCB-spec long-life coolant for replacements at 1,000 hours. Interpret hydraulic samples against the 500-hour baseline to extend or compress future intervals based on contamination levels.

Corrective & Common Repairs

Common repairs on the 804 Plus include replacing the Perkins 1103 engine oil filter and fuel filters. Check the alternator and starter motor for wear. Inspect the hydraulic pump and control valve for leaks. Replace worn track rollers and idlers. Check the slew ring bolts for torque. Inspect the cylinder rods for scoring and hose fittings for weep. Replace the air filter element if the restriction indicator shows clogging. Ensure the fuel lift pump and injection pump are functioning correctly.

Overhaul & Rebuild Points

The 2,000-hour interval requires a deep service including hydraulic oil replacement and tank cleaning. Measure swing ring play radially and axially. Inspect the boom, arm, and chassis for structural cracking. Service the brakes, checking disc wear and immersed brake condition. Check injector spray patterns via the diagnostic tool. Replace the turbocharger charge cooler boot if damaged. Inspect the timing gear case and camshaft assembly for wear. Ensure the oil sump and suction pipe are clear.

Seasonal & Environment Servicing

In cold climates, warm up the Perkins engine before operation. Check the coolant mixture for freeze protection. Inspect the cab HVAC system, including A/C pressure and evaporator condition. Replace the cabin filter. In high temperatures, monitor the engine oil cooler and hydraulic oil cooler for blockage. Check the fan belt tension. Inspect the track tension and roller condition. Ensure the battery electrolyte is topped up if not sealed. Grease all pivot points regularly to prevent corrosion.

804 PLUS common service parts

Part numberPart
32/905301Element, Air - PrimaryCheck fitment →
02/630935Element, Engine Oil FilterCheck fitment →
32/905200Element, BreatherCheck fitment →
581/00012Element, Filter, 10 MicronCheck fitment →
32/904706Filter, Swirl ConeCheck fitment →

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804 PLUS attachments & work tools

Standard Buckets

Factory specifications list a standard bucket capacity of 0.11 cubic meters (0.14 cubic yards). The machine operates with a standard weight of 3.35 tons (7,385 lbs), which varies by configuration and series.

Tilting Grading Buckets

Southwest JCB lists Tilting Grading buckets as a primary attachment option for the JCB 804 Plus. These tools are designed to improve grading efficiency and material retention on job sites.

Ditch Maintenance & Tapered Buckets

Available configurations include Deep Profile, Ditch Maintenance, and Tapered Ditching buckets. These tools are selected to enhance digging efficiency and ensure clean release of material.

Heavy Duty & Ribbed Buckets

Heavy Duty and Ribbed bucket options are offered to handle abrasive materials and improve durability. Jaw buckets are also listed as a specialized option for specific material handling tasks.

Hydraulic Breakers

JCB offers an OEM hydraulic breaker range designed to work in harmony with its machines. These breakers require auxiliary hydraulics to operate.

Coupler Systems

Attachments attach to the base machine using a coupler or quick coupler system. Specific coupler models or mounting dimensions are not documented in the provided sources.

Hydraulic Kit Requirements

The service manual for the 804 Plus includes Section A dedicated to Optional Equipment and Section E for Hydraulics. Specific hydraulic kit part numbers or flow requirements for attachments are not detailed in the provided text.

Undercarriage & Guarding Options

Bolt-on rubber pads are available for the JCB 804 Plus. Standard track width is 350 mm (13.8 inches). Rubber tracks are available in 300x52.5Wx84 (12-inch) block patterns.

All 804 PLUS assemblies by section

Every catalogued assembly group for the Jcb 804 PLUS. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

A Attachments
A2-1-5 Bucket, Trapezoidal
A2-1-4 Bucket, Grading
A2-1-1 Bucket, General Purpose
13***4ZBolt2
13***1ZNut0
52***00Bucket, Assembly, 230mm0
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A2-1-3 Bucket, Ditch Cleaning
52***00Bucket, 1200mm Ditching0
52***00Bucket, Ditching1
52***00Bucket, Ditching/Grading, 12000mm1
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A2-1-2 Bucket, Rehandling
A3-4-1 Earth Drill
13***4ZBolt, M16x606
13***3ZNut, M166
14***18Seal, Bonded, 1/2" Bsp2
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A3-3-1 Earthdrill, Dm1200, From 08/2007
A3-4-4 Earth Drill, Gearbox
98***03Housing, Output1
98***04Shaft, Output1
98***05Cover, End1
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A3-21-5 Kerbgrab, 180 Kg Swl
98***44Attachment, Manual Kerbgrab Base, 70kgswl1
98***24Grab, Kerb 180kgswl, Manual Rotation1
98***32Body1
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A3-35-40 Kerbgrab
13***3DNut, Self Lock M103
13***5DCapscrew, M10 X 203
14***01Nipple, Grease, Straight, 1/8 Bsp2
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A3-35-45 Hydraulic Rotator
20***75Shim1
20***76Washer1
20***77Pin, Wedge1
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A3-21-2 Kerbgrab, Manual, 70 Kg Swl
14***18Seal, Bonded, 1/2" Bsp1
14***21Seal, Bonded 3/4" Bsp1
14***4DWasher2
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A3-21-1 Kerbgrab, Manual, 180 Kg Swl
14***18Seal, Bonded, 1/2" Bsp1
14***21Seal, Bonded 3/4" Bsp1
14***4DWasher2
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A3-5-1 Cutter/Crusher
90***18Plug2
90***43Nipple, Grease2
90***56Capscrew12
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A3-4-3 Auger And Extensions
13***9DBolt, M16x356
14***9DWasher, M1210
14***1DWasher, M1612
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A3-1-1 Quickhitch
13***7ZScrew, Hexagon M8 X 254
13***7ZBolt2
13***3ZNut, Lock, M102
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A3-2-1 Cutter/Crusher
90***18Plug2
90***43Nipple, Grease2
90***56Capscrew12
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A3-2-2 Hammermaster 260l
13***6ZBolt2
14***18Seal, Bonded, 1/2" Bsp1
14***21Seal, Bonded 3/4" Bsp3
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A3-21-6 Kerbgrab, 70 Kg Swl
98***44Attachment, Manual Kerbgrab Base, 70kgswl1
98***32Body1
98***33Jaw1
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A3-4-2 Auger And Extensions
13***4ZBolt1
13***3ZNut, Self Lock, M81
98***10Tool, Pilot Bit1
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A4-1-1 Blade, Dozer
13***18Bolt3
13***03Nut3
14***07Nipple, Grease, 45 Deg. Angle2
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B Bodywork, Cab, Loader End
B1-6-4 Soundproofing, Engine
23***15Panel, Soundproofing1
23***16Panel, Soundproofing1
23***17Panel, Soundproofing1
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B1-6-3 Soundproofing, Engine
13***3ZNut, Self Lock, M62
14***1ZWasher2
14***1ZWasher3
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B1-4-1 Floorplates
13***7ZBolt, M10x2517
23***02Rest, Foot1
23***01Proofing, Heat1
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B1-6-2 Covers, Engine
13***01Bolt0
13***03Bolt13
13***05Bolt0
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B1-3-2 Tank, Hydraulic
13***3ZScrew, M8 X 160
13***7ZScrew, Hexagon M8 X 250
13***7ZBolt, M10x250
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B1-5-6 Soundproofing, Bulkhead
23***03Panel, Soundproofing0
23***04Panel, Soundproofing0
23***05Panel, Soundproofing0
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B1-5-1 Bulkhead & Covers
13***3ZBolt, M10 X 160
13***8ZBolt, M10 X 300
13***3ZNut, Lock, M100
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B1-1-2 Mainframe, And Counterweights
13***5ZScrew, Hexagon M8 X 20mm Long2
13***8ZBolt, M10 X 306
13***2ZBolt, M10 X 1.5 X 5010
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B1-5-5 Soundproofing, Bulkhead
13***5ZScrew, Hexagon M8 X 20mm Long4
13***3ZBolt, M10 X 166
14***7ZWasher, Spring4
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B1-1-3 Mainframe, & Protection Plates
12***03Tie, Cable, L=300mm X W=7.6mm9
13***5ZScrew, M10 X 20mm Long; Use With Single Piece Casing. To Gearbox Number 445/143/831 Or 445/144/455, Screw, M10 X 20mm Long14
13***8ZBolt, M10 X 305
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B1-4-2 Floorplates
13***7ZBolt, M10x250
23***02Rest, Foot0
23***02Proofing, Heat0
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B1-2-1 Tank, Diesel Fuel
13***3ZScrew; Replaces 69***2112
13***8ZBolt, M10 X 304
14***8ZWasher, Spring M10; Replaces 60***8r & 60***08, Replaces Luu0105-San 12222, Washer, Spring M10; Replaces 60***8r & 60***08, Replaces Luu0105-San 12222, Used On Outlet Adapter, Item 5. Also N524275 & 52***55, Washer, Spring M10; Replaces 60***8r & 60***08, Replaces Luu0105-San 12222, Used On Outlet Adapter, Item 5. Also M524275 & 52***5512
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B1-2-2 Tank, Diesel Fuel
13***3ZScrew; Replaces 69***210
14***5ZWasher, M5; Replaces 69***590
23***03Cap0
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B1-6-1 Covers, Engine
13***5ZBolt18
13***1ZNut, M5-84
13***3ZNut, Self Lock, M621
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B1-3-1 Tank, Hydraulic
13***2ZScrew, Hex Head4
14***16Seal, Bonded1
14***6ZWasher, M64
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B1-1-1 Mainframe, And Counterweights
13***5ZScrew, M10 X 20mm Long; Use With Single Piece Casing. To Gearbox Number 445/143/831 Or 445/144/455, Screw, M10 X 20mm Long8
13***2ZBolt, M12 X 50mm4
13***6ZBolt, M12 X 70mm4
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B1-5-2 Bulkhead & Covers
13***03Bolt, M10x166
13***07Bolt4
13***08Bolt6
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B2-4-9 Window, Side, Opening
14***04Screw4
23***00Window, Side, Opening1
33***47Rubber, Glazing2
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B2-4-5 Windscreen, Assembly
13***5ZScrew, Hexagon M8 X 20mm Long4
14***2ZWasher4
23***00Windscreen, Assembly1
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B2-4-6 Windscreen, Assembly
13***5ZScrew, Hexagon M8 X 20mm Long6
13***7ZScrew, Hexagon M8 X 254
13***1ZNut, M81
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B2-4-3 Cab Glazing
23***02Rubber, Lower Front1
23***07Seal, Weather, Front Lower1
23***01Glass, Quarter Clear, Left Hand1
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B2-5-2 Seat, Suspension, Optional
40***05Kit-Seat Frame1
40***02Kit-Seat Cover, Grey Fabric; Nla1
40***17Kit, Bearing1
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B2-5-1 Seat, Static, Standard
40***05Kit-Seat Frame1
40***01Kit-Seat Back Cover, Grey Fabric; Nla2
40***02Kit-Seat Cover, Grey Fabric; Nla1
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B2-3-1 Door
13***3ZScrew, M6x160
13***1ZScrew, Hex Head, M8 X 122
13***03Nut0
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B2-3-2 Door
12***47Handle, C/W Barrel Lock Only1
13***1ZNut3
13***3ZCapscrew1
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B2-1-1 Canopy Assembly
13***1ZBolt, M10 X 102
13***8ZBolt, M10 X 303
13***5ZBolt1
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B2-4-8 Window, Side, Opening
14***04Screw2
82***53Glass, Fixed Pane0
92***03Catch, Assembly, (Inc Screws)0
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B2-2-2 Cab Complete, Including Glass
13***8ZBolt, M10 X 303
13***5ZBolt1
13***3ZNut, Lock, M104
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B2-2-5 Cab Shell
13***7ZScrew, M6 X 25mm Long2
13***3ZScrew, M8 X 162
13***5ZScrew, Hexagon M8 X 20mm Long2
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B2-4-2 Cab Glazing
23***01Glass, Door, Upper Window0
23***03Glass, Lower Window, Right Hand0
23***08Glass, Quarter Window, Left Hand0
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B2-6-3 Seat Base
B2-4-1 Cab Glazing
23***01Glass, Door, Upper Window0
23***08Glass, Quarter Window, Left Hand0
23***01Glass, Lower, Rh0
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B2-2-1 Cab Complete, Including Glass
13***8ZBolt, M10 X 303
13***5ZBolt1
13***3ZNut, Lock, M104
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B2-6-2 Seat Mounting
13***7ZBolt, M10x254
13***1ZNut, M84
23***04Key, Ref Ft1111
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B2-6-1 Seat Base And Pods
13***3ZScrew, M8 X 162
13***9ZSetscrew, M8x351
13***7ZBolt, M10x251
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B2-2-7 Cab Shell
12***05Bolt, Closing1
13***7ZScrew, M6 X 25mm Long2
13***5ZScrew, Hexagon M8 X 20mm Long4
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B2-1-3 Canopy Assembly, Rops/Fops/Togs
13***2ZBolt, M8x503
13***3ZScrew1
13***1ZBolt, M10 X 102
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B2-2-6 Cab Shell
13***03Bolt0
13***5ZScrew, Hexagon M8 X 20mm Long0
13***01Bolt0
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B4-3-2 Dipper
13***8ZBolt, M10x800
13***9ZBolt, M10x90mm3
13***3ZNut, Lock, M100
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B4-2-2 Boom
13***7ZBolt2
13***3ZNut, Lock, M103
14***01Nipple, Grease, Straight, 1/8 Bsp1
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B4-3-1 Dipper
13***8ZBolt, M10x801
13***9ZBolt, M10x90mm3
13***3ZNut, Lock, M105
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B4-2-1 Boom
13***7ZBolt2
13***3ZNut, Lock, M103
14***01Nipple, Grease, Straight, 1/8 Bsp1
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B4-1-1 Kingpost
13***5ZScrew, M10 X 20mm Long; Use With Single Piece Casing. To Gearbox Number 445/143/831 Or 445/144/455, Screw, M10 X 20mm Long0
13***8ZBolt, M12 X 300
13***2ZBolt, M6 X 500
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B5-3-1 Tool Kit
40***01Grease, Mpl-Ep, 400g.0
82***06Spanner, D.O.E., 1" X 1.1/8" A/F0
82***29Spanner, D.O.E. 13 X 17mm A/F0
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B5-2-3 Labels, Operation, & Control
23***00Label, Fuse Box, German1
23***00Label, Fuse Box, French1
23***00Label, Fuse Box, Dutch1
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B5-4-1 Fire Extinguisher
13***05Bolt0
13***03Nut0
13***03Nut2
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B5-2-1 Transfers, Labels &, Handbooks
81***90Decal, Jcb, Insignia 375 X 300mm1
81***61Decal, Jcb Insignia (Black), 204mm X 250mm2
81***34Label, 8031
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B5-2-2 Labels, Safety, & Warning
81***65Label, Noise, 80 Lpa1
81***66Label, Sound Level, 81lpa1
81***67Label, Noise 82 Lpa1
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B5-5-1 Oils,Greases & Paint
23***38Paint, Yellow Gloss, 1 Litre1
40***01Oil, Engine, Sae30, 200 Litres1
40***02Oil, Engine, Sae30, 5 Litres1
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B5-2-4 Transfers And Labels, Usa
81***92Label, Loader Arm, Scissor Point2
81***50Label, Warning, 'Beware Of Fan'1
81***39Label, Warning Seat Belt, Micro 8008; Replaced By 81***361
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C Electrics-Machine, Cab & Engine
C1-1-4 Pod, Right Hand
13***5ZScrew, Hexagon M8 X 20mm Long2
14***2ZWasher2
14***6ZWasher, M64
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C1-2-1 Light, Working
13***05Bolt0
13***3ZBolt, M10 X 162
13***07Bolt0
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C1-1-3 Electrics, Main
13***5ZScrew, M10 X 20mm Long; Use With Single Piece Casing. To Gearbox Number 445/143/831 Or 445/144/455, Screw, M10 X 20mm Long1
13***1ZNut0
13***3ZNut0
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C1-1-2 Pod, Left Hand, & Electrics
13***5ZScrew, Hexagon M8 X 20mm Long2
14***2ZWasher2
14***6ZWasher, M64
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C1-1-1 Pod, Right Hand, & Electrics
13***5ZScrew, Hexagon M8 X 20mm Long2
13***5ZScrew, M10 X 20mm Long; Use With Single Piece Casing. To Gearbox Number 445/143/831 Or 445/144/455, Screw, M10 X 20mm Long1
13***7ZBolt, M10x251
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C2-4-2 Alternator Mountings
02***78Nut2
02***44Washer3
02***51Washer1
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C2-1-1 Battery 12v, & Carrier
13***3ZScrew, M6x162
13***5ZScrew, M10 X 20mm Long; Use With Single Piece Casing. To Gearbox Number 445/143/831 Or 445/144/455, Screw, M10 X 20mm Long1
13***3ZNut, Self Lock, M62
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C2-3-3 Alternator
02***12Pulley, Single, D=83mm; Not Included In Assembly. Must Be Used With Spacer 02/10***13., Pulley, Single, D=83mm1
02***13Spacer1
71***01Capacitor, Suppression1
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C2-5-3 Motor, Starter
71***06Bolt, Through1
71***12Kit-Retention1
71***00Motor, Starter1
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C2-2-1 Electrics, Engine
C2-6-1 Engine Auto Stop
02***38Box, Control1
02***39Connector1
14***04Washer, Spring2
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C2-5-4 Motor, Starter
71***00Motor, Starter, 12v1
71***01Bush1
71***02Solenoid1
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C2-4-1 Alternator Mountings
02***34Washer, Spring2
02***69Bracket Alternator M1
02***12Screw2
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C2-3-2 Alternator
02***00Alternator1
02***01Nut1
02***02Screw1
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C2-5-2 Motor, Starter
71***11Gear3
71***13Ball1
71***00Motor, Starter, 9t X 30mm Dia Gear1
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C2-5-1 Motor, Starter
02***00Motor, Starter1
02***01Shaft1
02***02Clutch1
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C2-3-1 Alternator
02***00Alternator0
02***01Kit, Sundry Parts0
02***02Kit, Fan & Pulley0
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C2-1-2 Battery 12v, & Carrier
02***43Nut0
12***03Cover, Protection1
12***03Tie, Cable, L=300mm X W=7.6mm5
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C2-5-5 Motor, Starter
71***00Motor, Starter, 12v1
71***02Solenoid1
71***06Holder, Brush1
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C3-1-1 Electrics, Cab
24***07Grommet1
24***07Grommet2
70***02Light, Interior1
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C3-2-2 Heater, Installation
12***03Tie, Cable, L=300mm X W=7.6mm4
13***3ZScrew, M6x162
13***3ZNut, Self Lock, M62
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C3-7-1 Immobiliser Kit
13***3ZScrew; Replaces 69***212
13***1ZNut4
13***1ZNut, M5-82
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C3-2-3 Cab Heater
12***03Tie, Cable, L=300mm X W=7.6mm4
13***1ZSetscrew, M6 X 12mm Long6
13***7ZBolt, M10x253
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C3-4-1 Light, Working, Cab
70***02Harness1
70***00Light, Working1
70***01Lens, Glass1
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C3-2-4 Cab, Heater
12***03Tie, Cable, L=300mm X W=7.6mm4
13***1ZSetscrew, M6 X 12mm Long4
13***9ZCapscrew, M6 X 351
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C3-2-5 Heater Unit Details
15***01Motor, 12 Volt1
30***70Heater, Motor, Assembly1
30***76Tie, Cable1
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C3-7-2 Immobiliser Kit
13***3ZScrew; Replaces 69***212
13***1ZNut4
13***1ZNut, M5-82
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C3-6-1 Radio Installation
13***3ZScrew, M8 X 162
14***6ZWasher, M64
14***7ZWasher, Plain, M8; Replaces Khn1550, San 126202
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C3-2-1 Heater, Installation
12***03Tie, Cable, L=300mm X W=7.6mm4
13***1ZSetscrew, M6 X 12mm Long6
13***7ZBolt, M10x253
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C3-4-2 Boom Working Lights
13***3ZBolt, M10 X 162
13***7ZBolt, M10x251
14***8ZWasher, Spring M10; Replaces 60***8r & 60***08, Replaces Luu0105-San 12222, Washer, Spring M10; Replaces 60***8r & 60***08, Replaces Luu0105-San 12222, Used On Outlet Adapter, Item 5. Also N524275 & 52***55, Washer, Spring M10; Replaces 60***8r & 60***08, Replaces Luu0105-San 12222, Used On Outlet Adapter, Item 5. Also M524275 & 52***552
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C3-5-1 Beacon
70***01Bulb, 12v 55w, Halogen1
70***01Lens, Amber, 146mm Dia1
70***00Beacon, Magnetic, (Amber) 12 Volt, Beacon, Magnetic, (Amber) 12 Volt; See Note 1. Belt Driven1
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C3-3-1 Motor, Wiper
14***9ZWasher1
23***14Washer, Wiper1
23***10Cap1
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D Controls-Machine, Engine
D1-9-1 Boom Boost Switching, (Optional)
23***00Valve, Assembly1
23***00Controller, Assembly; Replaced By Mss Use 25/22***88,81***x6,826, /01674x4,13***x4,82***x8,14***x41
62***01Hose, 1/4in.1
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D1-1-1 Controls, Track
12***59Ring, Tolerance2
13***7ZBolt, M10x252
13***2ZNut, M81
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D1-8-1 Controls, Auxiliary
13***5ZScrew, M10 X 20mm Long; Use With Single Piece Casing. To Gearbox Number 445/143/831 Or 445/144/455, Screw, M10 X 20mm Long2
13***6ZBolt, Hex. Head, M10 X 701
13***3ZNut, Lock, M103
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D1-3-1 Slew Lock, Transport
14***7ZWasher, Plain, M8; Replaces Khn1550, San 126201
21***5ZPin, Cotter1
23***01Pin1
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D1-2-1 Control, Dozer
12***59Ring, Tolerance1
12***16Base, Control Knob1
12***17Top, Control Knob1
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D2-1-1 Control, Throttle
12***02Knob, Controls, Yellow1
13***3ZScrew, M6x162
13***4ZBolt1
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E Hydraulics & Air
E1-8-1 Circuit, Aux. Single Acting
23***00Pipe1
24***07O Ring1
24***07O Ring1
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E1-8-2 Circuit, Aux. Single Acting
23***00Pipe, Auxiliary. Tank0
24***07O Ring0
24***07O Ring0
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E1-2-2 Circuit, Servo Hydraulics, Sae
23***01Sleeve, Polyurethane2
61***00Hose, 1/4in Lp1
61***00Hose, 1/4in Lp2
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E1-2-4 Circuit, Servo Hydraulics, 3cx
23***01Sleeve, Polyurethane2
61***00Hose1
61***00Hose, 1/4in Lp2
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E1-10-1 Conversion, Auxiliary, Single To Double Acting
14***21Seal, Bonded 3/4" Bsp2
16***06Adapter, 3/4" Bsp M/M1
24***07O Ring1
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E1-8-6 Circuit, Aux. Double Acting
14***21Seal, Bonded 3/4" Bsp2
23***00Pipe, Auxiliary. Tank1
24***07O Ring1
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E1-1-5 Circuit, Neutral, Hydraulics
14***18Seal, Bonded, 1/2" Bsp2
16***17Adapter, 5/8" X 1/2" M/M1
22***05Clip, Jubilee10
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E1-6-2 Circuit, Excavator
13***03Bolt0
23***00Kit, Long Dipper0
23***00Pipes, Dipper0
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E1-3-1 Circuit, Slew & Swing, Hydraulics
74***00Hose, 3/8in. H.P.1
74***00Hose, 3/8in., H.P.3
74***00Hose, 1/2in. H.P.2
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E1-2-5 Circuit, Servo Hydraulic, Iso Controls
23***01Sleeve, Polyurethane2
61***00Hose1
61***00Hose, 1/4in Lp1
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E1-11-1 Service Kit, Adaptor, Plugs Etc.
23***72Plug0
23***74Cap, Blanking0
81***96Cap, Blanking 3/4"Bsp, Steel0
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E1-2-8 Changeover, Iso/Sae, Optional, M/C'S With Switchable Boom Boost Option
13***5ZBolt, Star Drive, M8 X 65mm2
62***23Hose, 1/4in.1
62***36Hose, 1/4in.1
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E1-4-1 Circuit, Track & Dozer, Mainframe
74***00Hose, 3/8in. H.P.1
74***00Hose, 3/8in Hp1
74***00Hose, 1/2in. Hp2
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E1-2-7 Changeover, Iso/Sae, Optional, M/C'S W/O Switchable Boom Boost Option
13***5ZBolt, Star Drive, M8 X 65mm2
62***36Hose, 1/4in.1
62***53Hose, 1/4in. L.P.1
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E1-2-1 Circuit, Servo Hydraulics, Iso
23***01Sleeve, Polyurethane2
61***00Hose, 1/4in Lp1
61***00Hose, 1/4in Lp2
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E1-10-2 Conversion, Auxiliary, Single To Double Acting
14***21Seal, Bonded 3/4" Bsp2
24***07O Ring0
24***07O Ring2
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E1-9-1 Circuit, Hand Held Tools, Power Take-Off Hydraulics
13***7ZBolt, M10x250
13***4ZBolt, M10x600
13***1ZNut0
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E1-1-2 Circuit, Neutral, Hydraulics
13***7ZBolt, M10x251
14***11Seal, Bonded3
14***18Seal, Bonded, 1/2" Bsp2
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E1-1-1 Circuit, Neutral, Hydraulics
13***7ZBolt, M10x251
14***11Seal, Bonded3
22***05Clip, Jubilee10
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E1-2-6 Circuit, Servo Hydraulic, Jcb Controls
23***01Sleeve, Polyurethane2
61***00Hose1
61***00Hose, 1/4in Lp1
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E1-7-2 Auxiliary, Pipes And Hoses, Excavator
13***3ZScrew, M8 X 163
13***5ZScrew, M10 X 20mm Long; Use With Single Piece Casing. To Gearbox Number 445/143/831 Or 445/144/455, Screw, M10 X 20mm Long4
13***7ZBolt, M10x254
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E1-6-1 Circuit, Excavator
13***3ZScrew, M8 X 166
13***9ZScrew, M10x35mm2
13***3ZNut, Lock, M102
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E1-4-2 Circuit, Track & Dozer, Mainframe
74***00Hose, 3/8in. H.P.2
74***00Hose, 1/2in. Hp2
74***00Hose, 1/2in., H.P.2
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E1-9-2 Circuit, Hand Held Tools, Power Take-Off Hydraulics
13***7ZBolt, M10x250
13***8ZBolt, M10 X 301
13***2ZBolt, Bolt; Qty Was 1 Off Before New Plate. Old Fasteners Were 13***8z X 2 & 13***2z X 10
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E1-8-5 Circuit, Aux. Double Acting
14***21Seal, Bonded 3/4" Bsp2
16***06Adapter, 3/4" Bsp M/M1
24***07O Ring2
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E1-4-3 Circuit, Track & Dozer, Undercarriage
62***26Hose, 1/4in.1
74***00Hose0
74***00Hose4
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E1-7-1 Auxiliary, Pipes And Hoses
13***3ZScrew, M8 X 162
13***5ZScrew, M10 X 20mm Long; Use With Single Piece Casing. To Gearbox Number 445/143/831 Or 445/144/455, Screw, M10 X 20mm Long2
13***7ZBolt, M10x254
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E1-5-1 Circuit, Excavator -, Mainframe
74***00Hose, 1/2in.H.P.4
74***00Hose, 1/2in.H.P.2
74***00Hose, 1/2in.H.P.1
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E1-1-4 Circuit, Neutral, Hydraulics
14***11Seal, Bonded3
22***05Clip, Jubilee10
22***06Clip, Jubilee16
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E1-2-3 Circuit, Servo Hydraulics, Iso
23***01Sleeve, Polyurethane2
61***00Hose1
61***00Hose, 1/4in Lp2
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E2-3-2 Slew Motor Assembly
13***12Screw, Cap; Replaces 60***12, San 133316
20***00Motor, Slew, Assembly1
24***05O Ring4
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E2-1-5 Pump Assembly
13***9ZScrew, M10x35mm4
13***07Bolt0
14***11Seal, Bonded3
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E2-1-7 Pump Assembly
13***9ZScrew, M10x35mm4
13***07Bolt0
20***00Pump0
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E2-5-1 Motor, Track
13***07Capscrew1
20***40Motor, Assembly, Wheel1
20***42Housing, Assembly 21
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E2-3-1 Slew Motor Assembly
13***09Capscrew4
20***00Motor, Slew, Assembly1
24***05O Ring4
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E2-1-1 Pump Assembly
20***01Kit-Seal, Complete, Pump1
20***00Pump, Triple; (1px064/1px100/1px100 Pumps Capacity)1
20***02Rod, Tie4
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E2-2-1 Pump Coupling
13***8ZBolt, M12 X 303
13***7ZCapscrew, Socket Head2
23***01Plate1
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E2-1-10 Pump, Main Hydraulic
13***9ZScrew, M10x35mm4
14***08Washer4
16***56Adaptor3
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E2-1-8 Pump Assembly
13***9ZScrew, M10x35mm4
13***8ZBolt, M12 X 300
14***08Washer0
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E2-1-6 Pump, Main Hydraulic
20***01Body, Main1
20***02Body, Main, Pump1
20***03Shaft1
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E2-2-6 Pump Coupling
13***7ZBolt3
23***01Plate1
23***51Gear1
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E2-2-5 Pump Coupling
13***8ZBolt, M12 X 303
23***01Plate1
23***51Gear1
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E2-5-2 Motor, Track
13***07Capscrew1
20***43Seal, Oil, (Outer Diameter 40mm / Thickness 10mm)1
20***45Bearing, Ball1
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E2-2-2 Pump Coupling
13***7ZBolt3
23***02Sleeve, Coupling1
23***03Gear1
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E2-1-9 Pump, Main Hydraulic
E2-4-1 Slew Motor
20***41O Ring; Use 20/90***341
20***12Barrel, Assembly1
20***01Motor, Assembly; San 10***351
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E3-8-1 Servo Joystick, R.H.
13***3ZNut, Self Lock, M64
14***11Seal, Bonded6
14***6ZWasher, M64
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E3-8-4 Servo Joystick, R.H.
25***87Valve, Servo, Joystick; Replaced By 25/22***63 + 81***43 X 6, +, 72***12. See San 130381
25***22Handle1
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E3-1-7 Valve Block, 5 Spool
13***09Capscrew3
14***18Seal, Bonded, 1/2" Bsp2
14***8ZWasher, Spring M10; Replaces 60***8r & 60***08, Replaces Luu0105-San 12222, Washer, Spring M10; Replaces 60***8r & 60***08, Replaces Luu0105-San 12222, Used On Outlet Adapter, Item 5. Also N524275 & 52***55, Washer, Spring M10; Replaces 60***8r & 60***08, Replaces Luu0105-San 12222, Used On Outlet Adapter, Item 5. Also M524275 & 52***553
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E3-5-1 Valve, Dipper Boost Dump
14***11Seal, Bonded1
14***15Washer, Seal; Replaces Khj08915
24***05O Ring5
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E3-2-1 Valve, Section, Track, Rh
25***03Screw; Use 25/60***010
25***12O Ring, Interface, Valve Sections0
25***26Plate, Seal0
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E3-3-3 Valve Section, Slew
25***12O Ring, Interface, Valve Sections0
25***44Spring1
25***06O Ring2
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E3-6-1 Valve, Maintenance, Servo Pressure
14***11Seal, Bonded5
14***15Washer, Seal; Replaces Khj08914
24***05O Ring4
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E3-2-5 Valve Section, Boom Boost
25***16O Ring1
25***12O Ring, Interface, Valve Sections0
25***22Plug, Assembly0
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E3-2-3 Valve Section, Dipper
25***12O Ring, Interface, Valve Sections0
25***19Kit-Seal, Relief Valve1
25***43Poppet1
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E3-3-7 Valve Section, Inlet
25***16O Ring1
25***12O Ring, Interface, Valve Sections0
25***22Plug, Assembly1
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E3-7-1 Valve, Boom Boost, Optional
13***0ZBolt2
13***3ZNut, Self Lock, M62
14***6ZWasher, M62
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E3-3-5 Valve Section, Auxiliary Valve
25***16O Ring1
25***03Screw; Use 25/60***012
25***12O Ring, Interface, Valve Sections0
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E3-2-2 Valve Section, Bucket
25***12O Ring, Interface, Valve Sections0
25***44Spring1
25***06O Ring2
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E3-3-1 Valve Section, Dozer
25***12O Ring, Interface, Valve Sections0
25***19Kit-Seal, Relief Valve1
25***25Cap, Detent1
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E3-11-1 Filter, Hydraulic
13***07Capscrew4
14***26Washer, Seal1
24***11O Ring1
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E3-8-2 Servo Joystick, L.H.
13***3ZNut, Self Lock, M64
14***6ZWasher, M64
24***05O Ring6
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E3-15-1 Accumulator
E3-2-8 Valve Section, Outlet
25***16O Ring1
25***12O Ring, Interface, Valve Sections1
25***22Plug, Assembly4
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E3-5-2 Valve, Dipper Boost Dump
14***11Seal, Bonded1
14***15Washer, Seal; Replaces Khj08915
24***05O Ring5
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E3-1-2 Valve Block, 6 Spool
13***09Capscrew3
14***18Seal, Bonded, 1/2" Bsp2
14***8ZWasher, Plain M10; San 23620 Ref Dave Bickerton Confirms Identic, Al To 33***8z Rationalise Parts3
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E3-14-1 Hose Burst Kit
12***03Tie, Cable, L=300mm X W=7.6mm5
13***5ZBolt4
13***2ZScrew, M6 X 504
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E3-3-4 Valve Section, Boom/Dipper Boost
25***12O Ring, Interface, Valve Sections0
25***44Spring1
25***06O Ring2
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E3-1-1 Valve Block, 6 Spool
13***09Capscrew3
14***8ZWasher, Plain M10; San 23620 Ref Dave Bickerton Confirms Identic, Al To 33***8z Rationalise Parts3
14***8ZWasher, Spring M10; Replaces 60***8r & 60***08, Replaces Luu0105-San 12222, Washer, Spring M10; Replaces 60***8r & 60***08, Replaces Luu0105-San 12222, Used On Outlet Adapter, Item 5. Also N524275 & 52***55, Washer, Spring M10; Replaces 60***8r & 60***08, Replaces Luu0105-San 12222, Used On Outlet Adapter, Item 5. Also M524275 & 52***553
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E3-8-3 Servo Joystick, L.H.
25***86Valve, Servo, L.H.; Replaced By 25/22***62 + 81***43 X6, 721/109, 13 X1. See San 130251
25***62Controller, Joystick1
71***86Relay, Latching1
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E3-11-2 Filter, Hydraulic
58***12Element, Filter, 10 Micron1
58***04Seal1
58***12Spring, Top1
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E3-16-1 Valve, Track Motor
13***18Capscrew0
20***60Valve, Assembly0
20***61Plug1
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E3-6-2 Valve, Maintenance, Servo Pressure
14***11Seal, Bonded5
14***15Washer, Seal; Replaces Khj08914
16***02Adapter1
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E3-2-6 Valve Section, Main Relief, 6 Spool Valve
25***12O Ring, Interface, Valve Sections0
25***17Valve, Section, Mid Inlet0
25***18Valve, Relief0
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E3-3-2 Valve Section, Swing
25***12O Ring, Interface, Valve Sections0
25***40Valve, Anti-Cavitation1
25***41Kit-Seal, Anti-Cavitation1
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E3-3-6 Valve Section, Mrv
25***12O Ring, Interface, Valve Sections0
25***19Kit-Seal, Relief Valve1
25***05Valve, Relief0
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E3-13-1 Valve, Slew & Swing
13***5ZBolt, Star Drive, M8 X 65mm2
13***3ZNut, Self Lock, M82
14***7ZWasher, Plain, M8; Replaces Khn1550, San 126202
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E3-2-7 Valve Section, Track, Lh
25***03Screw; Use 25/60***010
25***12O Ring, Interface, Valve Sections0
25***26Plate, Seal0
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E3-1-6 Valve Block, 5 Spool
14***18Seal, Bonded, 1/2" Bsp2
14***8ZWasher, Spring M10; Replaces 60***8r & 60***08, Replaces Luu0105-San 12222, Washer, Spring M10; Replaces 60***8r & 60***08, Replaces Luu0105-San 12222, Used On Outlet Adapter, Item 5. Also N524275 & 52***55, Washer, Spring M10; Replaces 60***8r & 60***08, Replaces Luu0105-San 12222, Used On Outlet Adapter, Item 5. Also M524275 & 52***553
23***03Spacer3
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E3-10-1 Joint, Rotary
13***0ZBolt, M8x404
13***7ZBolt, M10x252
13***01Nut4
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E3-2-4 Valve Section, Boom
25***12O Ring, Interface, Valve Sections0
25***19Kit-Seal, Relief Valve1
25***43Poppet1
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E4-5-2 Ram, Bucket
14***01Nipple, Grease, Straight, 1/8 Bsp2
23***01Bush0
23***00Ram, Assembly1
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E4-4-3 Ram, Dipper
14***01Nipple, Grease, Straight, 1/8 Bsp2
23***53Dowel1
23***00Ram, Assembly; For Use With Dipper On Page B4-3-1. 23***00 Dipper Ram Is Used On Machine Serial Number 76***94, See Page E4-4-11
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E4-1-1 Ram, Swing
14***01Nipple, Grease, Straight, 1/8 Bsp2
23***00Ram, Assembly1
23***50Cylinder1
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E4-6-1 Protection Plates, Boom Ram
13***7ZBolt, M10x250
14***07Washer0
21***13Pin, Cotter, Split0
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E4-6-2 Protection Plates, Bucket Ram
13***5ZScrew, M10 X 20mm Long; Use With Single Piece Casing. To Gearbox Number 445/143/831 Or 445/144/455, Screw, M10 X 20mm Long1
14***8ZWasher, Plain M10; San 23620 Ref Dave Bickerton Confirms Identic, Al To 33***8z Rationalise Parts1
23***02Plate, Support1
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E4-4-7 Ram, Dipper
14***01Nipple, Grease, Straight, 1/8 Bsp2
23***03Head, Piston1
23***06Screw, Set1
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E4-5-3 Ram, Bucket
14***01Nipple, Grease, Straight, 1/8 Bsp2
23***00Ram, Assembly1
23***01Bush2
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E4-3-1 Ram, Boom
14***01Nipple, Grease, Straight, 1/8 Bsp1
23***01Bush2
23***00Ram, Assembly1
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E4-4-1 Ram, Dipper
14***01Nipple, Grease, Straight, 1/8 Bsp2
23***01Bush2
23***52Kit-Seal1
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E4-1-2 Ram, Swing
14***01Nipple, Grease, Straight, 1/8 Bsp2
23***08O Ring1
23***08O Ring1
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E4-4-4 Ram, Dipper
14***01Nipple, Grease, Straight, 1/8 Bsp2
23***13Head, Piston1
23***50Bush2
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E4-5-1 Ram, Bucket
14***01Nipple, Grease, Straight, 1/8 Bsp2
23***01Bush2
23***02Rod, Piston1
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E4-3-4 Ram, Boom
33***22Cylinder, Assembly1
59***13Rod, Piston1
81***65Nipple, Grease2
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E4-5-4 Ram, Bucket
14***01Nipple, Grease, Straight, 1/8 Bsp2
23***55O Ring1
23***08O Ring1
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E4-6-4 Protection Plates, Boom Ram
13***5ZScrew, M10 X 20mm Long; Use With Single Piece Casing. To Gearbox Number 445/143/831 Or 445/144/455, Screw, M10 X 20mm Long1
13***7ZBolt, M10x252
14***8ZWasher, Plain M10; San 23620 Ref Dave Bickerton Confirms Identic, Al To 33***8z Rationalise Parts1
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E4-6-3 Protection Plates, Bucket Ram
13***7ZBolt, M10x252
22***44Circlip, External2
23***03Plate, Protection1
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E4-4-2 Ram, Dipper
E4-5-5 Ram, Bucket
14***01Nipple, Grease, Straight, 1/8 Bsp2
23***03Head, Piston1
23***05Bush1
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E4-5-6 Ram, Bucket
14***01Nipple, Grease, Straight, 1/8 Bsp2
23***00Ram, Assembly1
23***01Cylinder1
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E4-2-3 Ram, Dozer
13***5ZScrew, M10 X 20mm Long; Use With Single Piece Casing. To Gearbox Number 445/143/831 Or 445/144/455, Screw, M10 X 20mm Long2
14***01Nipple, Grease, Straight, 1/8 Bsp1
14***07Nipple, Grease, 45 Deg. Angle1
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E4-4-6 Ram, Dipper
14***01Nipple, Grease, Straight, 1/8 Bsp2
22***26Circlip1
23***56O Ring1
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E4-4-8 Ram, Dipper, 556/60255
23***04Nipple, Grease; San 10***402
23***06Screw, Set1
23***08Bush1
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E4-3-2 Ram, Boom
14***01Nipple, Grease, Straight, 1/8 Bsp1
23***00Ram, Assembly0
23***00Ram, Assembly1
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E4-2-2 Ram, Dozer
13***5ZScrew, M10 X 20mm Long; Use With Single Piece Casing. To Gearbox Number 445/143/831 Or 445/144/455, Screw, M10 X 20mm Long2
14***01Nipple, Grease, Straight, 1/8 Bsp2
23***50Cylinder1
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E4-4-5 Ram, Dipper
14***01Nipple, Grease, Straight, 1/8 Bsp2
23***01Bush0
23***00Ram, Assembly1
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E4-3-3 Ram, Boom
14***01Nipple, Grease, Straight, 1/8 Bsp2
23***56O Ring1
23***10O Ring2
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E4-2-1 Ram, Dozer
13***5ZScrew, M10 X 20mm Long; Use With Single Piece Casing. To Gearbox Number 445/143/831 Or 445/144/455, Screw, M10 X 20mm Long2
14***01Nipple, Grease, Straight, 1/8 Bsp1
14***01Nipple, Grease, 90deg. Angle1
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E4-0-0 Rams
23***31Spacer, 46 Dia.2
23***32Spacer, 42 Dia.6
23***40Kit, Wear1
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F Track/Slew Gearbox
F4-2-1 Gearbox, Track
13***09Bolt0
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 131900
20***00Motor, Wheel Assembly0
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F4-2-2 Gearbox, Track
F4-1-1 Gearbox, Slew
20***09Ring, Snap1
20***14Circlip7
20***26Casing, Output, Assembly1
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F4-2-3 Gearbox, Track
20***02Cover0
20***06Pin0
20***08Washer, Thrust0
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J Track & Running Gear, Undercarrage
J1-5-1 Track Assemblies
13***8ZBolt, M12 X 300
13***9ZScrew, M12 X 35mm, Screw, M12 X 35mm; M12 X 35. Items 21 & 22 Are Used On 23***00 And 23***00 Throttle Brackets0
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 1319012
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J1-1-3 Undercarriage
13***1ZScrew, Hex Head, M8 X 124
13***5ZScrew, M10 X 20mm Long; Use With Single Piece Casing. To Gearbox Number 445/143/831 Or 445/144/455, Screw, M10 X 20mm Long20
13***9ZBolt, M12x35 Grade 8.818
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J1-1-2 Undercarriage
13***1ZScrew, Hex Head, M8 X 126
13***5ZScrew, M10 X 20mm Long; Use With Single Piece Casing. To Gearbox Number 445/143/831 Or 445/144/455, Screw, M10 X 20mm Long20
13***9ZScrew, M10x35mm4
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J1-3-1 Roller, Track Top
13***1ZBolt, M10 X 101
13***3ZNut1
14***08Seal, Washer1
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J1-4-1 Roller, Track Bottom
13***9ZScrew, Set, (Bolt M16 X 35)2
23***00Roller, Assembly; S/S By 33***06.Do Not Use 23***00 On, 8027z Machines4
23***50Shaft1
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J1-1-1 Undercarriage
13***1ZScrew, Hex Head, M8 X 1210
13***5ZScrew, M10 X 20mm Long; Use With Single Piece Casing. To Gearbox Number 445/143/831 Or 445/144/455, Screw, M10 X 20mm Long16
13***9ZBolt, M12x35 Grade 8.80
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J1-2-2 Idler Wheel, & Recoil Unit
13***4ZBolt, M12 X 60mm4
13***1ZCapscrew1
14***03Washer1
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L Engine
L1-8-1 Engine Mountings
13***8ZBolt, M10 X 300
13***7ZBolt1
13***09Bolt0
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L1-1-1 Engine, Complete
L1-4-1 Crankshaft, Bearings, Pistons & Con-Rods
02***42Key1
02***43Pin1
02***15Crankshaft, Assembly1
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L1-2-1 Engine, Short
L1-6-1 Timing Case, Camshaft & Gears
02***68Key1
02***78Nut4
02***79O Ring1
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L1-6-2 Timing Levers, Arms & Springs
02***96Nut3
02***07Circlip2
02***08Washer1
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L1-3-1 Block Assembly
02***01Plug, D=151
02***02Plug, D=251
02***03Plug, D=352
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L1-7-1 Flywheel & Housing
02***34Washer, Spring2
02***73Flywheel, Assembly1
02***74Gear, Starter Ring6
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L1-5-1 Fans, Pulleys, & Fan Belt
02***68Key1
02***77Pulley, Crankshaft1
02***78Nut1
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L2-3-1 Rocker Cover
02***72Bolt2
02***74Plate1
02***75Washer3
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L2-2-1 Rocker Assembly, Push Rods & Tappets
02***78Nut3
02***66Spring2
02***67Screw, Adjusting6
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L2-1-1 Cylinder Head
02***02Plug, D=254
02***42Seal, Inlet Valve3
02***43Spring, Valve6
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L3-3-1 Filter, Air
12***03Tie, Cable, L=300mm X W=7.6mm4
13***05Bolt0
22***11Clip, Jubilee0
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L3-1-1 Manifold, Induction
02***89Pin2
02***95Screw4
02***71Plug, D=10mm1
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L3-4-1 Exhaust System
02***38Gasket1
13***5ZScrew, Hexagon M8 X 20mm Long7
13***7ZScrew, Hexagon M8 X 254
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L3-4-2 Exhaust System
02***38Gasket1
13***5ZBolt3
13***5ZScrew, Hexagon M8 X 20mm Long1
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L3-2-1 Manifold, Exhaust
02***85Stud2
13***7ZScrew, M6 X 25mm Long4
13***1ZNut2
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L4-4-3 Radiator & Hoses
12***03Tie, Cable, L=300mm X W=7.6mm1
22***09Clip, Jubilee1
23***01Bracket, Top1
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L4-3-1 Radiator, Fittings & Mountings
12***03Hose, Overflow Assembly1
12***32Cap, Expansion Bottle1
13***3ZScrew; Replaces 69***214
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L4-3-3 Radiator, Fittings & Mountings
13***3ZScrew; Replaces 69***214
13***3ZScrew, M6x162
13***3ZScrew, M8 X 162
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L4-3-4 Radiator Fittings, And Mountings
13***3ZScrew; Replaces 69***214
13***0ZBolt2
13***5ZScrew, Hexagon M8 X 20mm Long8
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L4-4-4 Radiator, Oil Cooler, And Hoses
13***3ZScrew, M6x162
14***6ZWasher, M62
14***6ZWasher, Spring2
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L4-5-1 Cooler, Engine Oil
22***09Clip, Jubilee4
23***81Hose, Bottom1
23***82Hose, Bottom1
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L4-2-1 Thermostat, Housing, Inlet & Outlet
02***96Nut2
02***55Sender, Temperature1
02***89Plug, D=30mm1
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L4-1-1 Pump, Water
02***96Nut1
02***88Screw4
02***36Screw5
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L4-4-5 Radiator, Oil Cooler, And Hoses
13***3ZScrew, M6x162
14***6ZWasher, M62
14***6ZWasher, Spring2
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L4-4-1 Radiator & Hoses
12***03Tie, Cable, L=300mm X W=7.6mm3
22***09Clip, Jubilee4
23***00Radiator, Oil Cooler Assembly1
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L4-4-2 Radiator & Hoses
12***03Tie, Cable, L=300mm X W=7.6mm3
22***09Clip, Jubilee4
30***01Cap, Filler/Pressure1
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L5-2-1 Pump, Oil
02***07Spring1
02***14Cover1
02***15Shim, Oversize - 0.10mm0
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L5-1-1 Sump, Oil
02***72Bolt3
02***97Screw20
02***98Washer1
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L5-3-1 Filter, Oil
02***75Washer4
02***26Connector1
02***28Bolt, Banjo2
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L6-5-2 Fuel Lift Pump
02***69O Ring1
02***92Screw, M6x162
17***00Pump, Fuel Lift1
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L6-2-1 Injectors, Fuel, & Injection Pipes
02***96Nut2
02***66Washer2
02***14Damper4
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L6-1-1 Pump, Fuel Injection, & Shut-Off Solenoid
02***78Nut2
02***66Washer2
02***00Solenoid, Fuel Shut-Off1
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L6-5-1 Pump, Fuel Lift
L6-3-3 Fuel System
13***7ZScrew, Hexagon M8 X 255
13***8ZBolt, M10 X 304
13***3ZNut, Self Lock, M81
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L6-6-1 Filter, Fuel Sediment
32***02Nut, Cap1
32***03Washer, Nylon Seal, M61
32***06Filter, Swirl Cone1
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L6-3-1 Fuel System
13***8ZBolt, M10 X 304
20***06Tie, Cable, L=115mm X W=4.8mm5
22***01Clip, Jubilee1
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L6-4-1 Filter, Fuel
20***07Bolt, Centre0
20***13Plug, Vent0
20***26Seal0
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L6-3-2 Fuel System
13***8ZBolt, M10 X 304
20***06Tie, Cable, L=115mm X W=4.8mm5
22***01Clip, Jubilee1
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L8-1-1 Gasket Sets

804 PLUS serial number reference

For the JCB 804 Plus, the machine identification plate is located on the front face of the upper structure, on either the right or left side. The serial number is also stamped into the chassis frame as a backup. Verify applicability with a JCB dealer.

PrefixIdentifies
734402 - 734629Applicability for JCB 804 Plus Mini Excavator. Covers Boom, Arm, and Bucket cylinder seal kits.
734630 - 735365Applicability for JCB 804 Super Mini Excavator. Marks the serial break from the 804 Plus.

Frequently asked questions

What engine does the JCB 804 Plus use?

The JCB 804 Plus uses a Perkins 1103 engine series.

What is the operating weight of the JCB 804 Plus?

The standard operating weight is approximately 3.35 tons (7,730 lb).

What model replaced the JCB 804 Plus?

The JCB 804 Super replaced the 804 Plus, starting from serial number the OEM part reference.

What 804 PLUS owners discuss

What are the known hydraulic behaviors and common failures for the JCB 804 PLUS?
Owners report intermittent loss of house and bucket functions after the machine warms up, while tracks and blade remain operational. This is often attributed to a thermal breaker or relief valve issue that resets upon cooling. Early models (circa 1995) are noted for slewing gearbox failures and rotary hydraulic seal leaks at the cab-to-track interface. Hydraulic pump failures are also cited as a common fault on machines of this age, necessitating regular fluid and filter changes to prevent premature failure.
What undercarriage wear patterns are typical for the JCB 804 series?
The JCB 804 PLUS features a 350 mm track width and an operating weight of approximately 3.35 tons (7,730 lb). Wear patterns typically involve the rubber tracks, sprockets, and idlers. Track rollers and idlers are sealed units that are not lubricable by the operator and require full replacement when worn. The compact size and weight class place significant stress on the undercarriage components during frequent turning or heavy digging operations.
What engine quirks are associated with the JCB 804 PLUS generation?
The JCB 804 PLUS utilizes a JCB DieselMax 4-cylinder engine. Early DieselMax engines (Tier 2 and early Tier 3) are prone to big end bearing failures on the crankshaft, particularly 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. Owners should monitor for unusual noises, such as deep rhythmic knocking under load, which indicates serious internal engine damage.
What are common electrical or sensor issues reported by owners?
Intermittent operation is often linked to electrical components rather than hydraulic failure. On similar JCB models, forward/reverse lever operation relies on microswitches that activate hydraulic solenoids on the transmission body; these can fail or become misaligned. Additionally, glow plug systems may require extended cycling (10-15 seconds) in cold weather to ensure proper starting, as the engine may crank longer than in warm conditions. Black smoke during startup is typically unburned fuel from extended cranking rather than a mechanical fault.
What fluids and lubricants are specified for the JCB 804 PLUS?
The hydraulic system requires AW46 hydraulic fluid, with a capacity of approximately 17 liters. Engine oil capacity is 4.5 liters for the canopy and 5.0 liters for the cab configuration. Coolant capacity is 3.5 liters, using a 15/40 coolant mix. JCB recommends using JCB branded fluids verified for use, or equivalent multipurpose oils suitable for naturally aspirated or turbocharged engines, transmissions, and hydraulics. Engine coolant must be changed at recommended intervals to prevent silicate separation, which causes brown sludge in the expansion bottle.
What is the standard operating weight and transport width for the JCB 804 PLUS?
The standard operating weight for the JCB 804 Mini Excavator is 7,730 lb (3,507 kg). The transport width is 1.5 meters (4 ft 11 in). These dimensions can vary depending on the specific machine configuration, attachments, and counterweight setup. The machine is classified as a compact equipment unit under 20,000 lbs.
What should be checked when buying a used JCB 804 PLUS?
Verify the serial number range (the OEM part reference) for specific boom cylinder seal kit compatibility, as cylinder specifications (40 mm rod, 80 mm bore) vary by serial. Check for leaks from the rotary hydraulic seal unit joining the cab/engine to the track unit, as design changes may require specific fitting kits. Inspect the slew gearbox for dripping or failure, particularly on early 1995 models. Ensure the hydraulic fluid is clean and the strainer is free of debris. Verify the condition of the final drive oil and engine oil, as neglect is common in older units. Have your dealer verify the exact serial range specifications and installed attachment package before purchase.

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

Serial-range & configuration variants

This page covers the Jcb 804 PLUS. Related factory variants of the same model family:

804 PLUS

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