JCBagriculturalwheeled loaders
Jcb 423
Maintenance schedule, common problems & OEM parts breakdown
The JCB 423 is a wheeled loading shovel launched in 1973, marking JCB's entry into heavier wheeled loader territory. It succeeded the 413 and 418 models and preceded the 426 and 427 series. The machine features a cab mounted on the front section of the articulating chassis with an oscillating center pivot to ensure all four wheels remain in contact with the ground. Production occurred at the Rocester factory in Staffordshire, UK, with later global manufacturing in India, Brazil, and China. Configurations included standard shovel capacities and specialized variants for construction, quarrying, and waste handling.
Across its generations, the JCB 423 evolved from early mechanical designs to later models incorporating Cummins engines, ZF fully automatic powershift transmissions, and Smoothride suspension systems. The introduction of the CommandPlus cab and Stage V emissions compliant powertrains in later years improved operator comfort and environmental compliance. The machine is relevant in the used and parts market today due to its robust Dieselmax and EcoMAX engine architectures, which avoid DEF and DPF complexity, and its widespread global production history ensuring parts availability across multiple continents.
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 423 specifications
Engine
| Model | Cummins Stage 2 |
| Gross Power | 112 kW (150 hp) |
| Displacement | 5.9 L |
| Cylinders | Not documented for this exact serial range — verify with your dealer |
| Emissions Tier | Stage 2 |
Weights
| Operating Weight | 13 tonnes |
| Shipping Weight | Not documented for this exact serial range — verify with your dealer |
| Ground Pressure | Not documented for this exact serial range — verify with your dealer |
Dimensions
| Transport Length | Not documented for this exact serial range — verify with your dealer |
| Transport Width | Not documented for this exact serial range — verify with your dealer |
| Transport Height | Not documented for this exact serial range — verify with your dealer |
| Wheelbase | Not documented for this exact serial range — verify with your dealer |
| Ground Clearance | Not documented for this exact serial range — verify with your dealer |
Performance
| Travel Speeds | Not documented for this exact serial range — verify with your dealer |
| Lift/Dig/Dump/Drawbar | Not documented for this exact serial range — verify with your dealer |
| Gradeability | Not documented for this exact serial range — verify with your dealer |
Service capacities (summary)
| Fuel Tank | Not documented for this exact serial range — verify with your dealer |
| Hydraulic System | Not documented for this exact serial range — verify with your dealer |
| Engine Oil | Not documented for this exact serial range — verify with your dealer |
| Cooling System | Not 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 423 maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 100 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the 423 beyond the schedule
Predictive Maintenance & Fluid Analysis
JCB 423 maintenance relies on the 500-hour oil sampling baseline for engine, hydraulic, axle, and final drive systems. This lab analysis detects developing bearing, seal, or contamination problems 500 to 800 hours before failure. Interpret hydraulic samples against this baseline at the 1000-hour interval to extend or compress future service windows. Monitor turbocharger shaft play and wastegate function on Dieselmax units to predict power loss. Track undercarriage measurements against JCB wear limits to forecast track and roller replacement needs before catastrophic failure.
Corrective & Common Repairs
Common repairs on the JCB 423 involve replacing primary and secondary fuel filters to protect common-rail injectors on Dieselmax and EcoMAX engines. Address hydraulic hose chafing and cylinder rod scoring at the kingpost and boom fittings. Replace worn GET teeth, cutting edges, and bucket pins to maintain digging efficiency. Service brake discs and check immersed brake condition on backhoe and wheel loader variants. Repair or replace failing alternators and starters identified during load testing to prevent electrical strand-out.
Overhaul & Rebuild Points
The 2000-hour deep service is the critical overhaul point for the JCB 423. Drain and clean the hydraulic tank, then refill with JCB-spec oil to prevent component damage. Inspect structural boom, arm, loader arm, chassis, and side frames for cracking or unauthorized welding. Measure swing ring radial and axial play on tracked variants using dial indicators to determine if swing bearing replacement is required. Check injector spray patterns via diagnostic tool and replace injectors as needed to restore combustion efficiency.
Seasonal & Environment Servicing
The JCB 423 is tested for operation in climates ranging from -20°C to 50°C. In cold conditions, utilize pre-heat cold start systems and ensure coolant mixture is appropriate for freezing temperatures. In dusty environments, regularly clean the air filter housing and replace the cabin filter to maintain pressurized cab integrity. Inspect the variable speed cooling fan and charge cooler boots for debris accumulation. Verify Smoothride suspension system function to reduce shock loadings and spillages on rough terrain or during transport.
423 common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 256/35702 | Filter, Fuel | Fuel system service | Check fitment → |
| 258/37701 | Filter, Fuel | Fuel system service | Check fitment → |
| 07/241505 | Filter, Fuel, Assembly | Fuel system service | Check fitment → |
| 07/247138 | Element, Fuel Canister | Fuel system service | Check fitment → |
| 15/200109 | Filter, Air | Air intake service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
423 fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| P0087 | Fuel rail/system pressure too low | Clogged fuel filters, failing lift pump, or restricted fuel line | Check fuel filter condition and fuel pump operation |
| P0117 | Engine coolant temperature sensor circuit low voltage | Faulty coolant temperature sensor, shorted wiring, or poor connector contact | Inspect sensor wiring harness and connector for corrosion or damage |
| P0521 | Engine oil pressure sensor range/performance issue | Faulty oil pressure sensor or erratic signal from sensor | Verify oil level and inspect sensor electrical connections |
| P2047 | DEF/AdBlue injector circuit open (SCR system fault) | Open circuit in reductant injector wiring or faulty injector | Check injector wiring harness for breaks or loose connections |
| U0100 | Lost communication with Engine Control Module (ECM) | CAN bus communication failure, poor ground, or low battery voltage | Check battery voltage, ground straps, and CAN bus wiring integrity |
| 101 | Low transmission clutch pressure detected | Hydraulic pressure loss, faulty pressure sensor, or transmission issue | Check hydraulic fluid levels and transmission pressure readings |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
423 attachments & work tools
Buckets
JCB offers Deep Profile, Ditch Maintenance, Grading, Heavy Duty, Jaw, Ribbed, Tapered Ditching, and Tilting Grading buckets for construction applications. These tools are designed for improved productivity, efficient digging, better material retention, and clean release of material. They are available in various widths and styles to match specific job site conditions.
Quick Couplers
JCB provides Q-Fit pick-up systems for lifting equipment and other attachments to ensure easy and secure attachment to the machine. The JCB Quick Hitch system allows operators to switch between buckets, forks, and breakers within minutes. Both manual and hydraulic options are available depending on the machine type and requirement.
Hydraulic Breakers
JCB offers an OEM hydraulic breaker range designed for demolition, trenching, and concrete breaking. This attachment is compatible with backhoe loaders, excavators, and skid steer loaders. It is engineered for high performance and precision to handle tough applications.
Tilt Rotators
Tilt rotators enable attachments to tilt up to 45 degrees and rotate 360 degrees for unmatched control. The integrated hydraulic system connects seamlessly to the machine to perform complex tasks like grading and trenching on slopes. This accessory reduces the need for machine repositioning, lowering fuel consumption and speeding up job completion.
Lifting Equipment
JCB provides lifting equipment with a capacity range of 0.15 to 4 tonnes for safe handling of suspended loads. The range features a compact design to improve operator visibility and utilizes Q-Fit pick-up for easy attachment. These tools are designed to enhance the versatility of the machine for material handling tasks.
All 423 assemblies by section
Every catalogued assembly group for the Jcb 423. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
A Attachments
A1-2-1 Shovels, Light Duty, Bolt On Toeplates
| 13***04 | Nut | 8 |
| 13***01 | Nut | 28 |
| 14***05 | Washer | 4 |
A1-3-1 Shovels, Rock, Semi-Pointed, Bofors Type
| 13***04 | Nut | 8 |
| 14***05 | Washer | 4 |
| 21***26 | Pin, Split | 4 |
A1-4-1 Shovels, G.P, 3.3/4cu.Yd.
| 13***14 | Bolt | 10 |
| 13***12 | Bolt | 8 |
| 13***03 | Nut | 18 |
A1-1-1 Shovels, G.P
| 13***14 | Bolt | 10 |
| 13***12 | Bolt | 8 |
| 13***03 | Nut | 18 |
A2-2-2 Bucket Landfill, 3 Cu.Yd., With Teeth
| 13***04 | Nut | 8 |
| 14***05 | Washer | 4 |
| 21***26 | Pin, Split | 4 |
A2-2-1 Bucket, Landfill, 3cu.Yd.
| 13***04 | Nut | 8 |
| 14***05 | Washer | 4 |
| 21***26 | Pin, Split | 4 |
A2-1-1 Blade, Dozer
| 13***04 | Nut | 8 |
| 14***05 | Washer | 4 |
| 21***26 | Pin, Split | 4 |
B Bodywork,Cab,Loader End, Refurbishments
B1-2-1 Chassis Front/Rear
| 10***02 | Lug, Wire Securing, U Shape | 2 |
| 10***03 | Wire, Retaining | 2 |
| 13***4Z | Bolt, 3/8" | 2 |
B1-11-1 Guard, Belly
| 13***07 | Bolt | 6 |
| 13***08 | Bolt | 14 |
| 13***10 | Bolt | 12 |
B1-6-1 Fenders, Transmission Cover, 428 Compactor
| 13***0Z | Bolt | 2 |
| 13***8Z | Bolt | 4 |
| 13***6Z | Bolt | 4 |
B1-11-2 Guard, Belly, Hinged
| 13***8Z | Bolt | 8 |
| 13***8Z | Bolt, 1/2" X 1.1/4" Long | 8 |
| 13***6Z | Bolt | 6 |
B1-3-1 Centre Pivot
| 13***6Z | Bolt, 5/16"Unf X 1" Long | 10 |
| 13***22 | Bolt | 8 |
| 13***34 | Bolt | 20 |
B1-12-1 Counterweight, With Tow Hitch
| 13***2Z | Bolt | 4 |
| 25***1P | Counterweight, & Tow Hitch, With Ballast | 1 |
| 25***01 | Counterweight, Q Build | 1 |
B1-10-1 Paint & Transfers
| 42***04 | Paint, Black Gloss Enamel, 1 Lts | 0 |
| 42***04 | Paint, Red Gloss Enamel, 1 Lts | 0 |
| 42***05 | Paint, Red Gloss Enamel, 2.5 Lts | 0 |
B1-9-1 Engine Cover/Grille, 428 Compactor Daf
| 10***03 | Key | 1 |
| 13***4Z | Bolt, Bolt; To Secure The Diagonal Edge. Used To M602765 (926) And M608319 (930) | 36 |
| 13***4Z | Bolt | 10 |
B1-13-1 Pump, Diesel, Refuelling, Manual
| 10***00 | Pump, Refuelling | 1 |
| 10***01 | Handle, With Knob | 1 |
| 10***02 | Fork | 1 |
B1-14-1 Pump, Diesel, Refuelling, Installation, Electric
| 10***01 | Clip, Cable | 1 |
| 13***08 | Bolt | 2 |
| 13***03 | Nut | 2 |
B1-16-1 Remote Greasing
| 10***01 | Adapter | 3 |
| 13***1Z | Nut | 4 |
| 13***8Z | Bolt | 2 |
B1-8-1 Covers & Grille, Engine
| 10***03 | Key | 2 |
| 13***4Z | Bolt, Bolt; To Secure The Diagonal Edge. Used To M602765 (926) And M608319 (930) | 32 |
| 13***5Z | Bolt | 4 |
B1-5-1 Fenders, Transmission Covers
| 13***07 | Bolt | 4 |
| 13***04 | Bolt | 4 |
| 13***06 | Bolt | 4 |
B1-2-2 Chassis Front/Rear
| 10***02 | Lug, Wire Securing, U Shape | 3 |
| 10***03 | Wire, Retaining | 2 |
| 13***4Z | Bolt, 3/8" | 2 |
B1-4-1 Arms, Loader
| 10***08 | Pin, Pivot | 2 |
| 10***12 | Pin, Pivot | 1 |
| 13***08 | Bolt | 13 |
B1-1-1 Chassis Front & Rear
| 10***02 | Lug, Wire Securing, U Shape | 2 |
| 10***03 | Wire, Retaining | 2 |
| 13***4Z | Bolt, 3/8" | 2 |
B1-15-1 Scraper Bar
| 13***26 | Bolt | 108 |
| 13***22 | Bolt | 2 |
| 13***36 | Bolt | 4 |
B1-7-1 Covers & Grille, Engine
| 10***03 | Key | 2 |
| 13***4Z | Bolt, Bolt; To Secure The Diagonal Edge. Used To M602765 (926) And M608319 (930) | 32 |
| 13***6Z | Bolt, Bolt; See Index B3 For Sideshift Arrangement. Refer To Index B3 For Sideshift Arrangement. | 4 |
B2-4-1 Seat
| 13***04 | Screw, Cap | 4 |
| 13***14 | Capscrew | 4 |
| 25***00 | Seat, Bostrom 301e | 1 |
B2-7-1 Tool Kit, Supplementary
| 20***00 | Seal, Split | 2 |
| 25***01 | Tool, Repair | 1 |
| 82***01 | Spanner, 5/16"X 11/16"In A/F | 1 |
B2-5-1 Cab, Filtered Air
| 13***04 | Bolt | 8 |
| 13***01 | Nut | 1 |
| 14***05 | Washer; Replaces 82***03 | 1 |
B2-2-1 Cab Glazing
| 10***01 | Bracket | 2 |
| 13***06 | Bolt | 5 |
| 13***08 | Bolt | 7 |
B2-6-1 Tool Kit, Standard
| 25***03 | Adapter, Valve | 1 |
| 40***02 | Grease, Jcb Special Mpl, 400gm Cartridge | 1 |
| 82***07 | Spanner, Adjustable, 18in. | 1 |
B2-1-1 Cab
| 10***03 | Key | 4 |
| 10***00 | Handle, Internal | 2 |
| 12***06 | Strut, Gas | 2 |
B2-3-1 Soundproofing, Cab
| 14***06 | Screw | 4 |
| 25***01 | Panel, Side | 1 |
| 25***02 | Plate, Cover | 1 |
C Electrics-Machine, Cab & Engine
C1-4-1 Battery & Fittings
| 10***00 | Clamp | 2 |
| 13***08 | Bolt | 2 |
| 13***01 | Nut | 4 |
C1-5-1 Switch, Isolating, Battery
| 10***00 | Clamp | 2 |
| 13***7Z | Screw, M6 X 25mm Long | 2 |
| 13***01 | Nut | 4 |
C1-2-1 Instrument Panel
| 10***03 | Bracket | 2 |
| 10***06 | Washer, Leather | 1 |
| 13***03 | Nut | 2 |
C1-3-1 Heater, Installation
| 13***14 | Bolt | 1 |
| 13***18 | Bolt | 1 |
| 13***4Z | Screw | 8 |
C1-7-1 Switch, Isolating
| 13***12 | Bolt | 3 |
| 13***01 | Nut | 3 |
| 13***01 | Nut | 2 |
C1-6-1 Alarm, Reverse
| 13***30 | Bolt | 2 |
| 14***02 | Washer | 2 |
| 70***00 | Alarm, Reverse | 1 |
C1-2-2 Instrument Panel
| 13***01 | Nut | 8 |
| 13***03 | Nut | 1 |
| 13***04 | Screw | 4 |
C1-10-1 Motor, Wiper, Rear, Screen Washer, Installation
| 14***01 | Screw, Self Tapping | 4 |
| 14***02 | Screw, No 8x1/2" | 2 |
| 15***00 | Connector, 'T' Piece | 1 |
C1-12-1 Electrics, Cab
| 13***08 | Bolt | 2 |
| 13***04 | Bolt | 2 |
| 14***01 | Washer | 2 |
C1-11-1 Motor, Wiper, Windscreen, Installation
| 13***4Z | Bolt, Bolt; To Secure The Diagonal Edge. Used To M602765 (926) And M608319 (930) | 2 |
| 13***5Z | Bolt | 1 |
| 13***3Z | Nut, 5/16" Unf | 1 |
C1-1-2 Electrical Layout
| 04***97 | Switch, Transmission, Pressure | 1 |
| 13***6Z | Bolt, 5/16"Unf X 1" Long | 4 |
| 13***6Z | Bolt, Bolt; See Index B3 For Sideshift Arrangement. Refer To Index B3 For Sideshift Arrangement. | 1 |
C1-9-1 Alarm, Audible & Visual
| 13***03 | Nut | 12 |
| 20***01 | Mounting, Rubber; See Ti E187/H, E181/E. After M650139 (Except 65***29) Use 1 Off Each 4, 6, & 7, To Secure Bracket To M/C., Mounting, Rubber | 6 |
| 24***05 | Grommet | 1 |
C1-8-1 Switch, Isolating, Slave Start
| 13***05 | Bolt | 1 |
| 13***12 | Bolt | 3 |
| 13***01 | Nut | 7 |
C1-1-1 Electrical Layout
| 13***04 | Bolt | 2 |
| 13***5Z | Screw, Hexagon M8 X 20mm Long | 2 |
| 13***01 | Nut | 7 |
C1-10-2 Motor, Wiper, Rear, Screen Washer, Installation
| 14***01 | Screw, Self Tapping | 4 |
| 14***02 | Screw, No 8x1/2" | 2 |
| 15***00 | Connector, 'T' Piece | 1 |
C2-2-1 Light, Working, Cab Mounted
| 13***04 | Bolt | 2 |
| 70***03 | Spring | 1 |
| 70***01 | Gasket | 1 |
C2-1-1 Light, Head, & Combination
| 13***04 | Nut | 2 |
| 14***02 | Washer | 2 |
| 24***11 | Grommet | 6 |
C2-5-1 Light, Beacon, Hazard Warning
| 12***42 | Plate | 1 |
| 13***1Z | Nut | 3 |
| 13***8Z | Bolt | 3 |
C2-4-1 Guards, Light
| 13***04 | Bolt | 16 |
| 14***01 | Washer | 16 |
| 25***00 | Guard, Light, Cab Roof | 2 |
C2-3-1 Light, Rear
| 14***02 | Washer | 2 |
| 70***00 | Light, Number Plate | 2 |
| 70***00 | Light, Fog | 1 |
C2-2-2 Light, Working, Cab Mounted
| 70***00 | Light, Assembly Working 24v, Complete With Bulb | 2 |
| 70***01 | Light, Unit | 1 |
| 70***02 | Harness | 1 |
D Controls-Machine
D1-1-2 Gear Change
| 13***32 | Bolt | 3 |
| 13***24 | Bolt | 3 |
| 13***03 | Nut | 3 |
D1-2-1 Control, Gear Change
| 13***04 | Bolt | 8 |
| 13***06 | Bolt | 1 |
| 13***08 | Bolt | 3 |
D1-1-1 Gear Change
| 11***09 | Washer | 4 |
| 13***04 | Bolt | 4 |
| 13***06 | Bolt | 1 |
D1-4-1 Control, Linkage, 3 Spool Valve
| 13***10 | Bolt | 6 |
| 13***02 | Nut | 12 |
| 13***03 | Nut | 6 |
D1-2-2 Control, Gear Change
| 13***8Z | Bolt | 2 |
| 13***10 | Bolt | 2 |
| 13***06 | Bolt | 1 |
D1-3-1 Control, Linkage, 2 Spool Valve
| 13***10 | Bolt | 4 |
| 13***02 | Nut | 6 |
| 13***03 | Nut | 2 |
D1-5-1 Control, Linkage, Valve, Lift Arm Safety Mechanism
| 13***16 | Bolt | 4 |
| 13***04 | Nut; Replaced By 13***4z, See San008911 | 4 |
| 14***01 | Washer | 4 |
D1-6-1 Installation, Shovel Reset
| 13***4Z | Bolt, 3/8" | 2 |
| 13***7Z | Bolt | 2 |
| 13***6Z | Bolt | 2 |
E Hydraulics
E1-3-1 Hose & Pipework, Main Hydraulic
| 13***08 | Bolt | 4 |
| 13***08 | Bolt | 4 |
| 14***06 | Washer | 4 |
E1-7-1 Tank, Hydraulic
| 10***06 | Lock; Supply 12***71 | 1 |
| 13***05 | Bolt | 16 |
| 13***6Z | Bolt, Bolt; See Index B3 For Sideshift Arrangement. Refer To Index B3 For Sideshift Arrangement. | 4 |
E1-9-1 Hydraulic Fluid
| 40***01 | Fluid, Hydraulic, 23 Litres | 0 |
| 40***02 | Fluid, Hydraulic | 0 |
| 40***23 | Fluid, Hydraulic, 25 Litre | 1 |
E1-5-1 Circuit, Loader, 3 Spool
| 13***5Z | Bolt | 2 |
| 13***8Z | Bolt | 2 |
| 13***4Z | Bolt | 2 |
E1-6-2 Safety Mechanism, Lift Arm, With Solenoid Valves 2/3 Spool
| 13***06 | Bolt | 12 |
| 13***8Z | Bolt | 2 |
| 13***8Z | Bolt | 1 |
E1-4-1 Circuit, Loader End
| 13***05 | Bolt | 4 |
| 13***08 | Bolt | 16 |
| 13***08 | Bolt | 4 |
E1-2-1 Hose & Pipework, Main Hydraulic
| 13***08 | Bolt | 4 |
| 13***08 | Bolt | 4 |
| 14***06 | Washer | 4 |
E1-1-1 Hose & Pipework, Main Hydraulic
| 13***08 | Bolt | 4 |
| 13***08 | Bolt | 4 |
| 14***11 | Seal, Bonded | 1 |
E1-6-1 Safety Mechanism, Lift Arm, Hydraulic Circuit
| 10***00 | Adapter | 1 |
| 13***06 | Bolt | 8 |
| 13***07 | Bolt | 1 |
E1-8-1 Filter, Hydraulic
| 13***10 | Bolt | 2 |
| 13***01 | Plug, Drain | 2 |
| 13***01 | Nut | 2 |
E2-4-1 Valve, Loader
| 13***38 | Bolt | 1 |
| 13***04 | Nut | 2 |
| 14***05 | Washer | 2 |
E2-3-1 Pump, Main Hydraulic
| 13***32 | Bolt | 8 |
| 14***08 | Washer, Spring | 4 |
| 91***00 | Pump; Replaced By 91***00, See San05519 | 1 |
E2-1-1 Pump, Main Hydraulic, Adapters
| 13***08 | Bolt | 2 |
| 13***09 | Bolt, M10 X 35 | 8 |
| 13***08 | Bolt | 4 |
E2-2-1 Pump, Main Hydraulic, Adapters
| 13***08 | Bolt | 2 |
| 13***09 | Bolt, M10 X 35 | 8 |
| 13***08 | Bolt | 4 |
E2-7-1 Valve, Unloader, Plus Adapters
| 13***14 | Bolt | 2 |
| 13***08 | Bolt | 2 |
| 13***10 | Bolt | 2 |
E2-5-1 Valve, Spool
| 13***06 | Bolt | 1 |
| 24***03 | O Ring | 4 |
| 24***16 | O Ring | 1 |
E2-8-1 Valve, Unloader
| 24***03 | O Ring | 1 |
| 24***04 | O Ring | 1 |
| 91***00 | Valve | 1 |
E2-6-1 Valve, Components, 3 Spool
| 13***05 | Bolt | 4 |
| 13***06 | Bolt | 2 |
| 24***03 | O Ring | 5 |
E3-2-1 Ram, Lift, Standard
| 13***08 | Bolt | 6 |
| 13***32 | Bolt | 4 |
| 14***01 | Nipple, Grease, Straight, 1/8 Bsp | 2 |
E3-1-1 Ram, Bucket
| 13***08 | Bolt | 6 |
| 13***03 | Nut | 4 |
| 14***01 | Nipple, Grease, 90deg. Angle | 2 |
E3-3-1 Ram, Lift, With Checks
| 13***08 | Bolt | 6 |
| 13***32 | Bolt | 4 |
| 14***01 | Washer, Aluminium | 1 |
E3-4-1 Valve, Check, Safety Mechanism
| 14***11 | Seal, Bonded | 1 |
| 25***00 | Valve, Check | 2 |
| 25***01 | Ring, Piston | 2 |
F Axles,Wheels & Transmission
F1-2-1 Transmission, Fittings, Mountings, & Oil Cooler
| 13***8Z | Bolt | 4 |
| 13***8Z | Bolt | 4 |
| 13***8Z | Bolt | 8 |
F1-8-1 Tyre Inflator, Assembly
| 13***03 | Screw, 1/4 Unf X .625 | 2 |
| 13***03 | Nut | 2 |
| 13***03 | Nut | 2 |
F1-10-1 Wheels & Tyres
| 25***01 | Valve | 1 |
| 25***02 | O Ring | 1 |
| 41***01 | Ring, Lock | 2 |
F1-7-1 Guards, Brake Caliper, 428, Rp32 Axles
| 13***05 | Bolt | 4 |
| 13***01 | Nut | 16 |
| 13***01 | Nut | 4 |
F1-4-2 Propshafts, Transmission
| 13***0Z | Bolt, M12x40 | 2 |
| 13***8Z | Bolt, M10 X 30 Long | 16 |
| 13***3Z | Nut, M12 | 2 |
F1-3-1 Propshafts, Transmission
| 13***04 | Nut, Thin, Lock Type | 1 |
| 14***12 | Washer | 1 |
| 14***01 | Nipple, Grease, 90deg. Angle | 1 |
F1-5-1 Bearing Block
| 13***18 | Bolt | 4 |
| 13***03 | Nut | 4 |
| 14***07 | Washer | 4 |
F1-1-1 Transmission, Fittings, Mountings, & Oil Cooler
| 10***06 | Lock; Supply 12***71 | 1 |
| 13***14 | Bolt | 8 |
| 13***08 | Bolt | 12 |
F1-11-1 Wheels & Tyres
| 25***01 | Valve | 1 |
| 25***02 | O Ring | 1 |
| 41***01 | Ring, Lock | 1 |
F1-7-2 Guards, Brake Caliper, 428 Compactor
| 13***0Z | Bolt, 1/2" X 1.1/2" Long | 2 |
| 13***1Z | Nut | 8 |
| 13***3Z | Nut | 40 |
F1-6-1 Wheels, Compactor
F1-4-1 Propshafts, Transmission
| 13***04 | Nut, Thin, Lock Type | 1 |
| 14***12 | Washer | 1 |
| 14***01 | Nipple, Grease, 90deg. Angle | 1 |
F1-9-1 Guards, Brake Caliper, 423/428, Rp23 Axles
| 13***05 | Bolt | 4 |
| 13***01 | Nut | 16 |
| 14***3Z | Washer, Medium | 4 |
F2-4-1 Gear Train, Output Shaft
| 13***81 | Precleaner As; -Air Cleaner, Cup, Bearing | 1 |
| 13***47 | Bearing, Cone | 2 |
| 1C***20 | Screw | 4 |
F2-8-1 Pipework, Transmission
| 10***08 | Ball, Lock | 1 |
| 13***16 | Plug | 2 |
| 16***02 | Plug | 1 |
F2-7-1 Torque Converter, Pipework
| 13***03 | Bolt | 5 |
| 13***20 | Bolt | 4 |
| 13***12 | Bolt | 4 |
F2-5-1 Gear Train, Idler Shaft, 4th
| 10***15 | Ball, Lock | 1 |
| 1C***20 | Screw | 1 |
| 20***60 | Ring, Piston; Fully Interchangeable According To Email Sent, To Tim Reece Evans From Clark Hurth. 18/2/02 | 3 |
F2-1-1 Transmission, Converter Housing, & Components
| 04***00 | Transmission, Complete | 1 |
| 13***10 | Bolt | 16 |
| 1C***20 | Bolt | 6 |
F2-6-1 Transmission Clutch
| 21***90 | Ring, Retaining | 2 |
| 22***71 | Seal, Ring | 2 |
| 22***72 | Disc | 12 |
F2-3-1 Gear Train, Low, Forward, 2nd
| 04***44 | Bearing | 1 |
| 1***5 | Ball, Lock | 1 |
| 13***07 | Screw, Set | 5 |
F2-9-1 Pump, Charging, & Filter Assembly
| 1C***24 | Bolt | 4 |
| 22***30 | Circlip | 1 |
| 22***83 | Stop, Valve | 1 |
F2-10-1 Valve, Transmission
| 10***06 | Ball | 2 |
| 10***12 | Ball | 1 |
| 11***12 | Screw | 5 |
F2-2-1 Gear Train, Reverse & 3rd
| 04***44 | Bearing | 1 |
| 21***83 | Ring, Piston | 3 |
| 22***74 | Ring, Snap | 2 |
F3-7-1 Clutch Group, Input, Reverse, 3rd
| 10***08 | Ball, Lock | 1 |
| 21***99 | Ring, Snap | 1 |
| 21***42 | Drum, Assembly | 1 |
F3-3-1 Shaft, Input, And Reverse Gear
| 10***45 | Washer | 1 |
| 1F***32 | Pin, Split | 1 |
| 20***51 | Nut | 1 |
F3-5-1 Gear Train, Idler & Output Shaft
| 10***08 | Ball, Lock | 1 |
| 1C***16 | Screw, Set | 3 |
| 1C***20 | Bolt, Screw , T/M | 8 |
F3-10-1 Valve, Transmission
| 10***06 | Ball | 5 |
| 10***12 | Ball | 5 |
| 10***24 | Ball | 1 |
F3-8-1 Pipework, Transmission
| 1H***16 | Rivet | 1 |
| 1H***30 | Rivet | 1 |
| 1H***34 | Rivet | 1 |
F3-11-1 Pump, Transmission
| 1C***20 | Bolt | 4 |
| 20***53 | Stud, Salvage Sleeve | 3 |
| 22***04 | Ring, Snap | 3 |
F3-6-1 Clutch Group, 1st & 2nd
| 10***08 | Ball, Lock | 1 |
| 21***99 | Ring, Snap | 1 |
| 21***52 | Drum, Assembly | 1 |
F3-9-1 Filter, Oil Assembly, Transmission
| 13***12 | Bolt | 3 |
| 13***26 | Bolt, L=1.3/4" | 1 |
| 13***03 | Nut | 3 |
F3-2-1 Transmission
| 04***00 | Transmission, Assembly | 1 |
| 04***00 | Transmission, Assembly | 1 |
| 04***01 | Spacer, Valve Control | 1 |
F3-1-1 Torque Converter
| 04***00 | Converter, Torque | 1 |
| 04***02 | Cover, Impeller | 1 |
| 04***03 | O Ring | 1 |
F3-4-1 Gear Train, 1st 2nd 3rd & 4th
| 21***46 | Bracket, Clutch | 2 |
| 21***56 | Bracket, Clutch | 2 |
| 21***65 | Gear | 1 |
F4-1-1 Axle & Differential, Assemblies, Front
| 10***00 | Axle, Assembly, Front | 1 |
| 10***01 | Breather | 1 |
| 13***56 | Bolt | 8 |
F4-5-1 Hub, & Reduction Gear
| 24***21 | O Ring | 1 |
| 40***CX | Plate, Mounting | 2 |
| 40***CX | Nut | 12 |
F4-2-1 Axle & Differential, Assemblies, Front
| 10***00 | Axle, Front Compactor, 26.11 Ratio | 1 |
| 10***01 | Differential, Assembly | 1 |
| 10***02 | Flange, Diff-Pinion | 1 |
F4-6-1 Hub, & Reduction Gear, 428 Compactor
| 40***CX | Nut | 12 |
| 40***CX | Plate, Caliper | 1 |
| 40***CX | Button, Thrust | 1 |
F4-4-1 Axle & Differential, Assemblies, Rear
| 10***01 | Differential, Assembly | 1 |
| 10***03 | Nut, Stake | 1 |
| 10***05 | Seal, Pinion Shaft | 1 |
F4-3-1 Axle & Differential, Assemblies, Rear
| 10***00 | Axle, Rear, Assembly | 1 |
| 10***01 | Breather | 1 |
| 13***54 | Bolt, 10in Long | 4 |
G Brakes
G1-12-1 Brake Caliper, Hollow Type Pistons
| 15***01 | Plate, Retaining | 4 |
| 15***02 | Bolt | 8 |
| 15***03 | Nipple, Bleed | 2 |
G1-14-1 Brake, Parking
| 13***10 | Bolt | 2 |
| 13***14 | Bolt | 2 |
| 13***18 | Bolt | 3 |
G1-3-1 Hose & Pipework, Foot Brake, Air Circuit
| 13***06 | Bolt | 2 |
| 13***04 | Bolt | 3 |
| 13***04 | Bolt | 2 |
G1-2-1 Hose & Pipework, Foot Brake, Hydraulic Circuit
| 13***02 | Bolt | 2 |
| 13***01 | Nut | 6 |
| 14***11 | Seal, Bonded | 8 |
G1-6-1 Brake Actuator, & Master Cylinder
| 15***00 | Cylinder, Master | 1 |
| 15***01 | Kit-Repair | 1 |
| 15***01 | Filter | 2 |
G1-4-1 Hose & Pipework, Foot Brake, Hydraulic Circuit
| 13***02 | Bolt | 2 |
| 14***05 | Washer; Replaces 82***03 | 2 |
| 15***06 | Gasket | 4 |
G1-7-1 Brake Actuator, & Master Cylinder
| 13***03 | Nut | 1 |
| 14***02 | Washer | 1 |
| 15***00 | Cylinder, Master | 1 |
G1-9-1 Valve, Control, Footbrake
| 15***00 | Valve, Control | 1 |
| 15***01 | Kit-Repair | 1 |
| 15***02 | Stop, Rubber | 1 |
G1-5-1 Hose & Pipework, Foot Brake, Hydraulic Circuit
| 13***2Z | Bolt | 2 |
| 13***8Z | Bolt, M10 X 30 | 4 |
| 13***8Z | Bolt, M12 X 30 | 4 |
G1-13-1 Cold Start, Alcohol Evaporator
| 10***01 | Adapter | 2 |
| 13***04 | Bolt | 3 |
| 13***03 | Nut | 3 |
G1-10-1 Reservoir Air
| 13***04 | Bolt | 4 |
| 13***12 | Bolt | 2 |
| 13***03 | Nut | 6 |
G1-11-1 Brake Caliper
| 15***01 | Bolt | 4 |
| 15***02 | Pad | 1 |
| 15***03 | Pin | 4 |
G1-1-1 Hose & Pipework, Foot Brake, Air Circuit
| 13***06 | Bolt | 1 |
| 13***04 | Bolt | 3 |
| 13***04 | Bolt | 2 |
G1-8-1 Valve, Unloader
| 15***00 | Valve, Unloader Assembly | 1 |
| 15***01 | Circlip | 1 |
| 15***02 | Valve, Non-Return | 1 |
H Steering
H1-6-1 Pump, Steer Fittings
| 13***06 | Bolt | 8 |
| 13***08 | Bolt | 0 |
| 13***08 | Bolt | 0 |
H1-7-1 Valve, Steering
| 21***15 | Pin, Tension | 1 |
| 35***02 | Ring; San 23101.Cwe To Nla | 1 |
| 35***07 | Pin, Cross | 1 |
H1-8-1 Valve, Shock, Steering
| 35***00 | Valve, Complete | 1 |
| 35***02 | Valve, Assembly, Shock | 1 |
| 35***03 | Kit-Service | 1 |
H1-10-1 Ram, Steering
| 14***01 | Nipple, Grease, Straight, 1/8 Bsp | 1 |
| 24***37 | O Ring | 1 |
| 24***11 | Seal | 1 |
H1-1-1 Hose & Pipework, Steering
| 14***11 | Seal, Bonded | 3 |
| 14***18 | Seal, Bonded, 1/2" Bsp | 4 |
| 14***21 | Seal, Bonded 3/4" Bsp | 3 |
H1-9-1 Valve, Relief
| 13***30 | Bolt | 2 |
| 14***16 | Seal, Bonded | 1 |
| 14***05 | Washer; Replaces 82***03 | 2 |
H1-3-1 Hose & Pipework, Steering
| 13***08 | Bolt | 2 |
| 13***03 | Nut | 2 |
| 14***11 | Seal, Bonded | 3 |
H1-5-1 Pump, Steering
| 91***00 | Pump; Replaced By 91***00, See San05521 | 1 |
| 91***00 | Pump; Replaced By 91***00, See San05521 | 1 |
| 92***75 | Screw, Allen | 1 |
H1-2-1 Hose & Pipework, Steering
| 13***08 | Bolt | 2 |
| 13***03 | Nut | 2 |
| 14***11 | Seal, Bonded | 3 |
H1-4-1 Steering Column
| 11***01 | Wheel, Steering | 1 |
| 11***02 | Nameplate | 1 |
| 11***03 | Clip | 4 |
K Engine Dk & Dktd1160
K1-3-1 Timing Case, Camshaft & Gears
| 07***89 | Cover, Timing | 1 |
| 07***83 | Gasket | 1 |
| 07***67 | Washer | 1 |
K1-7-1 Covers, Side
| 07***37 | Gasket | 2 |
| 07***97 | Cover | 2 |
| 07***46 | Breather, Engine Oil | 2 |
K1-6-1 Engine Mountings
| 07***36 | Stud | 8 |
| 07***72 | Nut | 8 |
| 13***6Z | Bolt, 1/2" X 2.1/4" Long | 4 |
K1-6-2 Engine Mountings
| 07***36 | Stud | 8 |
| 07***72 | Nut | 8 |
| 07***73 | Nut | 8 |
K1-4-1 Flywheel & Housing
| 07***18 | Plug | 2 |
| 07***21 | Bolt | 3 |
| 07***50 | Washer | 13 |
K1-1-1 Block Assembly
| 07***75 | Cover | 2 |
| 07***20 | Bolt | 20 |
| 07***89 | Liner, Oversize - 0.25 | 0 |
K1-5-1 Pistons & Con-Rods
| 07***09 | Bush | 6 |
| 07***83 | Kit-Bearing, Big-End, Standard | 1 |
| 07***84 | Kit-Bearing, Big End, Undersize 0.25mm | 1 |
K1-6-3 Engine Mountings
| 07***36 | Stud | 8 |
| 07***72 | Nut | 8 |
| 13***4Z | Bolt | 2 |
K1-2-1 Crankshaft, Bearings, Pulleys, Fan Belt & Fan
| 07***22 | Pulley, Crankshaft | 1 |
| 07***20 | Bolt | 6 |
| 07***23 | Belt, Fan | 2 |
K1-1-0 Engines, Complete & Short
| 01***00 | Engine, Complete - Dk1160 | 1 |
| 01***0R | Engine, Reconditioned, Dk1160 | 1 |
| 01***00 | Engine, Complete - Dktd1160 | 1 |
K1-6-4 Engine Mountings
| 07***36 | Stud | 8 |
| 07***72 | Nut | 8 |
| 07***73 | Nut | 8 |
K2-1-1 Cylinder Head
| 07***63 | Pipe | 0 |
| 07***33 | Plug | 1 |
| 07***95 | Seat, Exhaust Valve | 6 |
K2-3-1 Rocker Assembly, Inlet/Exhaust Valves, Push Rods & Tappets
| 07***62 | Screw | 12 |
| 07***01 | O Ring | 0 |
| 07***50 | Washer | 6 |
K2-2-1 Rocker Cover
| 07***88 | Bush | 3 |
| 07***97 | Plate, Lifting | 1 |
| 07***16 | Cap, Filler | 1 |
K3-2-2 Manifold, Exhaust
| 07***03 | Ring, Joint | 4 |
| 07***12 | Stud | 12 |
| 07***13 | Nut | 13 |
K3-1-2 Manifold, Induction
| 07***93 | Insulator | 2 |
| 07***79 | Washer | 2 |
| 07***42 | Washer | 12 |
K3-4-1 Filter, Air, Installation, Self Cleaning
| 13***04 | Bolt | 6 |
| 13***6Z | Bolt, Bolt; See Index B3 For Sideshift Arrangement. Refer To Index B3 For Sideshift Arrangement. | 22 |
| 13***2Z | Bolt, 1/2" X 1.3/4" Long | 4 |
K3-4-2 Filter, Air, Installation, Self Cleaning
| 12***02 | Plug | 1 |
| 12***01 | Hose, Induction Elbow | 1 |
| 13***3Z | Screw, 1/4 Unf X .625 | 2 |
K3-3-1 Filter, Air
| 13***0Z | Bolt | 1 |
| 13***4Z | Bolt, 3/8" | 4 |
| 13***2Z | Bolt, 1/2" X 1.3/4" Long | 1 |
K3-3-2 Filter, Air
| 12***01 | Hose, Induction Elbow | 1 |
| 13***0Z | Bolt | 1 |
| 13***8Z | Bolt | 9 |
K3-4-3 Filter, Air, Self Cleaning
| 13***04 | Bolt | 4 |
| 13***12 | Bolt | 2 |
| 13***3Z | Nut | 10 |
K3-4-4 Filter, Air, Installation, Self Cleaning
| 07***72 | Flange | 1 |
| 13***04 | Bolt | 6 |
| 13***6Z | Bolt, Bolt; See Index B3 For Sideshift Arrangement. Refer To Index B3 For Sideshift Arrangement. | 22 |
K3-4-6 Filter, Air, Rotopamic, Optional
| 12***01 | Hose, Induction Elbow | 1 |
| 13***4Z | Bolt, Bolt; To Secure The Diagonal Edge. Used To M602765 (926) And M608319 (930) | 4 |
| 13***6Z | Bolt, Bolt; See Index B3 For Sideshift Arrangement. Refer To Index B3 For Sideshift Arrangement. | 4 |
K3-1-1 Manifold, Induction
| 07***93 | Insulator | 2 |
| 07***79 | Washer | 2 |
| 07***48 | Washer | 4 |
K3-5-1 Exhaust System
| 13***6Z | Bolt, 5/16"Unf X 1" Long | 2 |
| 13***0Z | Bolt | 2 |
| 13***12 | Bolt | 4 |
K3-4-5 Filter, Air, Installation, Self Cleaning
| 12***02 | Plug | 1 |
| 12***01 | Hose, Induction Elbow | 1 |
| 13***3Z | Screw, 1/4 Unf X .625 | 2 |
K3-5-2 Exhaust System
| 07***68 | Gasket | 1 |
| 07***23 | Stud | 6 |
| 07***14 | Plug | 1 |
K3-2-1 Manifold, Exhaust
| 07***03 | Ring, Joint | 4 |
| 07***12 | Stud | 12 |
| 07***13 | Nut | 12 |
K4-4-1 Radiator, Fittings & Mountings
| 12***00 | Bracket | 1 |
| 13***04 | Bolt | 6 |
| 13***6Z | Bolt | 2 |
K4-2-1 Thermostat & Housing
| 07***59 | Thermostat | 2 |
| 07***73 | Housing, Thermostat; 42***8c. Used On Engine Builds Dktd445298 And Dktd445301 Only. | 1 |
| 07***28 | Washer | 6 |
K4-4-2 Radiator, Hoses & Fittings
| 13***04 | Bolt | 8 |
| 13***6Z | Bolt, Bolt; See Index B3 For Sideshift Arrangement. Refer To Index B3 For Sideshift Arrangement. | 3 |
| 13***8Z | Bolt | 8 |
K4-1-1 Pump, Water
| 07***60 | Washer | 1 |
| 07***80 | Gasket | 1 |
| 07***20 | Bolt | 3 |
K5-5-2 Cooling Pipes, Water
| 07***29 | Bracket | 1 |
| 07***86 | Hose | 1 |
| 07***97 | Bracket | 1 |
K5-4-4 Cooler, Oil
| 07***13 | Gasket | 2 |
| 07***36 | Washer, Seal | 1 |
| 07***55 | Insert | 1 |
K5-1-1 Sump, Oil
| 07***98 | Gasket | 1 |
| 07***36 | Washer, Seal | 1 |
| 07***49 | Gasket | 1 |
K5-2-1 Filter, Oil, & Compressor Feed
| 07***83 | Head, Filter | 1 |
| 07***85 | Adapter | 2 |
| 07***86 | Element, Oil Canister | 2 |
K5-6-1 Pipes, Oil
| 07***38 | Gasket | 1 |
| 07***98 | Gasket | 4 |
| 07***62 | Spring | 1 |
K5-3-2 Pump, Oil
| 07***17 | Washer | 1 |
| 07***79 | Dowel | 2 |
| 07***59 | Gear, Intermediate | 1 |
K5-4-1 Cooler, Oil
| 07***13 | Gasket | 1 |
| 07***96 | Cover | 1 |
| 07***70 | Bracket | 1 |
K5-3-1 Pump, Oil
| 07***17 | Washer | 1 |
| 07***09 | Nut | 1 |
| 07***54 | Plate, Lock | 4 |
K5-5-1 Cooling Pipes, Water
| 07***29 | Bracket | 1 |
| 07***97 | Bracket | 1 |
| 07***19 | Gasket | 1 |
K5-7-1 Filler, Oil, & Dipstick
| 07***60 | Gasket | 1 |
| 07***75 | Nut | 2 |
| 07***21 | Bolt | 2 |
K5-4-2 Cooler, Oil
| 07***13 | Gasket | 2 |
| 07***36 | Washer, Seal | 1 |
| 07***55 | Insert | 1 |
K6-7-1 Filter, Fuel
| 07***24 | Plug | 2 |
| 07***05 | Filter, Fuel, Assembly | 1 |
| 07***38 | Element, Fuel Canister | 1 |
K6-3-2 Control Pedal, Throttle, Type A
| 13***3Z | Nut | 2 |
| 14***3Z | Washer, Spring | 2 |
| 25***00 | Clamp, Assembly | 1 |
K6-1-1 Fuel Injection, Pipework, High Pressure
| 07***99 | Nut | 2 |
| 07***19 | Washer, Seal | 6 |
| 07***58 | Bolt, Banjo | 8 |
K6-2-1 Drive Coupling, Fuel Injection Pump
| 07***82 | Bolt | 4 |
| 07***74 | Plate, Coupling | 8 |
| 07***76 | Bush | 8 |
K6-10-2 Control, Excess Fuel, & Smoke Stop
| 07***42 | Washer | 2 |
| 07***17 | Washer | 1 |
| 07***73 | Nut | 1 |
K6-3-1 Controls, Throttle & Stop
| 02***03 | Nipple | 1 |
| 02***04 | Adjuster | 1 |
| 02***41 | Pin, Swivel | 1 |
K6-3-3 Control Pedal, Throttle, Type B
| 13***3Z | Nut | 2 |
| 14***3Z | Washer, Spring | 2 |
| 25***00 | Clamp, Assembly | 1 |
K6-9-2 Fuel Pipes, Fuel Tank To Filter
| 07***31 | Banjo, Firtree | 4 |
| 07***63 | Adapter, Firtree | 1 |
| 07***42 | Nut, Union | 1 |
K6-9-1 Pump, Fuel Injection
| 07***35 | Adapter | 1 |
| 07***31 | Banjo, Firtree | 2 |
| 07***41 | Nipple | 1 |
K6-6-1 Filter, Fuel Sediment
| 07***41 | O Ring | 1 |
| 07***47 | Screw, Bleed | 2 |
| 07***86 | Bolt | 1 |
K6-4-1 Pump, Fuel Lift
| 07***05 | Strainer | 1 |
| 07***55 | Stud | 3 |
| 07***84 | Circlip | 1 |
K6-8-1 Injectors, Fuel
| 07***79 | Nozzle, Injector | 6 |
| 07***77 | Nozzle, Injector | 6 |
| 07***79 | Spindle, Pressure | 6 |
K6-11-1 Fuel Injection Pump, Smoke Stop Unit
| 07***06 | Screw | 1 |
| 07***09 | Gasket | 2 |
| 07***73 | Circlip | 1 |
K6-5-1 Fuel Injection, Pipework, Low Pressure
| 07***04 | Adapter | 2 |
| 07***19 | Elbow | 1 |
| 07***79 | Bracket | 1 |
K6-10-1 Control, Excess Fuel
| 07***20 | Bracket | 1 |
| 07***73 | Nut | 1 |
| 07***10 | Screw | 1 |
K7-4-1 Switches, Oil & Temperature
| 07***56 | Adapter | 1 |
| 07***44 | Switch, Temperature | 1 |
| 07***40 | Switch, Oil Pressure | 1 |
K7-3-1 Alternator Mountings
| 07***88 | Bush | 3 |
| 07***86 | Nut | 1 |
| 07***45 | Stud | 2 |
K7-1-1 Motor, Starter
| 07***79 | Bearing, Roller | 1 |
| 07***09 | Strap, Earth | 1 |
| 07***78 | O Ring | 1 |
K7-1-2 Motor, Starter
| 07***79 | Bearing, Roller | 1 |
| 07***09 | Strap, Earth | 1 |
| 07***78 | O Ring | 1 |
K7-2-1 Alternator
| 71***01 | Holder, & Brushes Assembly | 1 |
| 71***03 | Bearing, Drive End | 1 |
| 71***04 | Bearing, Slip Ring End | 1 |
K8-5-1 Cold Start, Alcohol Evaporator
| 10***01 | Adapter | 2 |
| 13***04 | Bolt | 3 |
| 13***3Z | Nut | 3 |
K8-3-1 Turbo, Pipework
| 07***98 | Gasket | 1 |
| 07***09 | Clip | 2 |
| 07***45 | Pipe, Oil Return, Bottom | 1 |
K8-1-1 Compressor
| 07***30 | Bearing | 1 |
| 07***17 | Washer | 6 |
| 07***29 | Plug | 2 |
K8-4-1 Turbocharger
| 07***49 | Nut | 2 |
| 07***51 | O Ring | 1 |
| 07***53 | Gasket | 1 |
K8-2-1 Compressor Pipework
| 07***39 | Adapter | 1 |
| 07***55 | Clip, Jubilee | 2 |
| 07***42 | Washer | 4 |
K9-1-1 Gasket Set, Top
| 07***47 | Kit-Gasket | 1 |
K9-1-3 Gasket Sets, Top
| 07***06 | Kit-Gasket, Supplementary | 1 |
| 07***67 | Kit-Gasket, Cylinder Head | 1 |
K9-1-2 Gasket Set, Top
| 07***65 | Kit-Gasket | 1 |
K9-2-1 Gasket Set, Bottom
| 07***30 | Kit-Gasket | 1 |
Frequently asked questions
What engine does the JCB 423 use?
The JCB 423 utilizes JCB Dieselmax or EcoMAX engines, with later models incorporating Cummins engines mated to ZF drivelines.
What is the operating weight of the JCB 423?
Operating weight varies by configuration and series, ranging from approximately 13.1 to 17.8 tonnes (28,880 to 39,250 lbs) for related 427/437 class models.
What model replaced the JCB 423?
The JCB 423 was succeeded by the 426 and 427 wheeled loader series, which introduced updated cab designs, modern emissions compliance, and advanced drivetrain technology.
What 423 owners discuss
What are the known powertrain and hydraulic behaviors for the JCB 423?
The JCB 423 is a wheel loader. It utilizes a load sensing hydraulic system with a variable displacement pump and a variable speed cooling fan to optimize power consumption. The machine is equipped with a ZF fully automatic powershift transmission and ZF axles for stepless gear changes. The hydraulic system operates at 190 bar with an integrated priority valve for smooth response. The steer ram is located high in the chassis to protect it from damage. The machine features Smoothride suspension to reduce shock loadings and spillages. Note: The 423 is a wheel loader; data for the JCB 423 backhoe or excavator variants is not present in the source text. The 423 wheel loader specifications vary by configuration, including tire type (e.g., Michelin 20.5R25 XHA2) and attachment package.
What undercarriage or wear patterns are typical for this machine type?
The JCB 423 wheel loader uses pneumatic tires (e.g., Michelin 20.5R25 XHA2) rather than a tracked undercarriage. Wear patterns associated with this machine type include tire wear and shock loading on the suspension system. The source text does not provide specific undercarriage wear data for a tracked JCB 423, as the 423 is identified as a wheel loader. For JCB backhoe loaders (e.g., 3CX, 4CX), common wear includes orbital steering valve leaks and hydraulic pump suction issues when the rear end is lower than the front. For JCB skid steer loaders, common wear includes drive motor mounting plate fractures due to thin side plates and drive chain tension issues.
What engine quirks are associated with the JCB 423 series?
The JCB 426 wheel loader (a related model in the 42x series) uses a 112kW Cummins engine. The source text does not specify the exact engine model for the JCB 423. However, for JCB 444 engines (used in various JCB machines), quirks include: early Dieselmax engines (Tier 2/early Tier 3) are prone to big end bearing failures and fuel injection pump faults; later Tier 4i/T4 Final EcoMax engines are sensitive to fuel quality and prone to injector faults. Common issues across generations include hard starting in cold weather due to glow plug/relay failures, power loss from restricted air filters (especially in dusty environments), and turbocharger shaft play. JCB engines require strong crank speed (12.4V for 12V systems, 24.8V for 24V systems) for reliable starting.
What are common electrical or sensor issues reported?
Common electrical issues include starting problems due to flat batteries, corroded terminals, or weak earth straps. Sensor and control issues include faulty glow plug relays/timers causing cold starting difficulties, and ECU pairing faults causing no-crank conditions. On JCB telescopic handlers, joystick faults can prevent the machine from starting if the neutral safety switch logic is compromised. On JCB backhoe loaders (e.g., 3CX), intermittent forward operation can be caused by faulty microswitches on the forward/reverse lever that activate hydraulic solenoids on the transmission body. Wiring on JCB skid steer loaders has been reported as white, which may indicate age or specific model configuration.
What should be checked when buying a used JCB 423?
When buying a used JCB 423 (wheel loader), verify the exact serial range to confirm the engine and transmission specifications, as they vary by configuration. Check the hydraulic system for hose integrity, as blowing hydraulic hoses is a reported issue on JCB skid steers and potentially other models. Inspect the ZF transmission and axles for smooth operation. Check the variable displacement pump and variable speed cooling fan for proper function. Verify the condition of the Smoothride suspension system. For JCB backhoes, check the orbital steering valve for leaks and the hydraulic pump suction strainer. For JCB skid steers, check the drive motor mounting plates for fractures and drive chain tension. Note: The source text does not provide specific buying checklist items exclusively for the JCB 423 wheel loader; recommendations are generalized from related JCB models and machine types.
What are the fluid specifications for the JCB 423?
The source text does not provide specific fluid capacities or specifications for the JCB 423. It references JCB service fluids, including JCB Advanced engine oil, JCB hydraulic oil, and JCB coolant. It notes that brown sludge in the expansion bottle indicates silicate separation, requiring coolant changes at recommended intervals. It mentions a multipurpose oil suitable for naturally aspirated or turbocharged engines, transmissions (including wet brake systems), and hydraulics. Specific fluid types and capacities for the JCB 423 are not documented in the provided sources.
What safety-critical fixes require dealer verification?
Safety-critical items requiring dealer verification include ROPS/FOPS structure integrity (tested to ISO 3471-1:1986 / ISO 3449:1984), the calibration of the load sensing hydraulic system, and ECU pairing and sensor logic for starting safety. Any repairs to the ZF transmission, axles, or variable speed cooling fan should be verified by a dealer to ensure proper operation and safety. Have your dealer verify the serial number to confirm exact engine and transmission specifications.
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 423. Related factory variants of the same model family:
423
Need a specific 423 part?
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