Jcb COMPACT II 5108
Maintenance schedule, common problems & OEM parts breakdown
The JCB COMPACT II 5108 is a compact excavator within the JCB compact equipment class, featuring a heavy-duty, fully welded H-frame undercarriage and a low center of gravity for stability. The machine utilizes JCB DieselMax or EcoMAX engines, which operate without Diesel Exhaust Fluid (DEF) or Selective Catalytic Reduction (SCR) systems. Operating weights for the compact excavator range vary by configuration, typically falling between 1.8 and 10 tons for the broader compact line, with specific models like the 86C-2 weighing approximately 19,180 lb. The COMPACT series includes zero tail swing (ZTS) and conventional tail swing configurations, designed for residential, landscaping, and commercial utility applications. The lineage includes predecessors such as the 801 series Gravemaster and successors in the 18Z through 100C series, offering varying tail swing radii and hydraulic flow capabilities.
Across generations, JCB compact excavators have shifted toward integrated O-Ring Face Seal (ORFS) hydraulic fittings for improved sealing and programmable twin auxiliary lines for versatile attachment operation. The COMPACT II 5108 matters in the used and parts market due to its extended 500-hour engine oil interval, which reduces downtime compared to competitors with 250-hour schedules. The machine's sealed-for-life track components and single-piece steel bodywork contribute to long-term durability, while the absence of DEF systems simplifies maintenance in colder climates. The market value is influenced by the availability of JCB-specific service data and the machine's reputation for rigid H-frame construction and ground-level service access.
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 COMPACT II 5108 specifications
Engine
| Engine Model | Kohler KDI 2504 TCR |
| Gross/Net Power | 64.4 hp (48.0 kW) |
| Emissions Tier | EPA Tier 4 Final / EU Stage V |
Weights
| Operating Weight | 19,180 lb (8,700 kg) |
| Ground Pressure | 5.5 psi (38 kPa) |
Dimensions
| Overall Width | 90.6 in (2,301 mm) |
| Overall Height | 106.5 in (2,705 mm) |
| Overall Length | 253.3 in (6,434 mm) |
Performance
| Maximum Digging Depth | 172.0 in (4,370 mm) |
| Maximum Reach at Ground Level | 290.8 in (7,386 mm) |
| Maximum Dumping Height | 212.0 in (5,385 mm) |
| Bucket Breakout Force | 12,838 lbf (57,100 N) |
| Stick Digging Force | 9,060 lbf (40,300 N) |
Service capacities (summary)
| Fuel Tank Capacity | 29.6 gal (112 L) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
Jcb COMPACT II 5108 maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 50 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the COMPACT II 5108 beyond the schedule
Predictive Maintenance & Fluid Analysis
At the 500-hour interval, collect oil samples from the engine, hydraulic tank, axle, and final drive to establish a baseline. Compare subsequent samples against this baseline to detect bearing wear or contamination 500 to 800 hours before failure. Inspect the hydraulic return filter magnet for metallic debris during every 500-hour service. Use JCB Engine Oil Special or equivalent 15W-40 diesel oil meeting API specifications. Monitor the hydraulic oil condition closely, as the 2000-hour service requires a full tank clean and oil change. Track undercarriage wear measurements at 1000 hours to predict component replacement needs.
Corrective & Common Repairs
Address hydraulic hose chafing and pinhole seepage identified during daily walkarounds to prevent system failure. Replace primary and secondary fuel filters at 500 hours to protect common-rail injectors on DieselMax and EcoMAX engines. Check turbocharger shaft play, boot condition, and wastegate function at 1000 hours to maintain engine performance. Inspect alternator and starter load to catch dying electrical components. Torque slew ring bolts on JS-series excavators during the 1000-hour service to ensure structural integrity. Replace worn GET components, including teeth and cutting edges, to maintain digging efficiency.
Overhaul & Rebuild Points
The 2000-hour service is the critical overhaul milestone, requiring a full hydraulic oil change and tank cleaning. Inspect the boom, arm, loader arm, chassis, and side frames for cracking or unauthorized welding. Measure swing ring play on JS-series excavators using radial and axial dial indicators to determine if the swing mechanism requires rebuilding. Service immersed brakes on backhoes and wheel loaders, checking disc wear. Check injector spray patterns via diagnostic tool and replace injectors as required. Perform complete electrical system testing to identify wiring faults or component degradation.
Seasonal & Environment Servicing
Allow proper warm-up time before applying heavy loads to prevent accelerated wear in cold conditions. Check battery electrolyte levels on non-sealed units during winter months to ensure reliable starting. Inspect cab HVAC system, including A/C pressure and evaporator condition, to maintain operator comfort in extreme temperatures. Store the machine under cover when possible to reduce corrosion on the 100% steel bodywork. Clean the undercarriage thoroughly to prevent debris buildup that accelerates wear on rollers and tracks. Verify coolant mixture and pressure test the cooling system quarterly to prevent catastrophic engine damage from overheating.
COMPACT II 5108 common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| A2/1817 | Gasket, Filter | Scheduled service item | Check fitment → |
| PP/5135 | Element, Suction | Scheduled service item | Check fitment → |
| PP/1775 | Element, Filter | Scheduled service item | Check fitment → |
| PP/1722 | Filter | Scheduled service item | Check fitment → |
| 929/12004 | Element, Suction | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
COMPACT II 5108 fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| 203 EN TMP | Engine Temperature Sensor Fault | Open circuit, short circuit, or signal noise in the engine coolant temperature sensor circuit. | Inspect sensor wiring harness for damage and check connector pins for corrosion; verify sensor resistance against factory specifications. |
| 218 HYD PMP | Hydraulic Pump Pressure Fault | Abnormal pressure readings from the main hydraulic pump sensor or relief valve malfunction. | Check hydraulic fluid level and condition; inspect pump pressure sensor wiring and connections. |
| 300 EC1 CAN | ECU 1 CAN Bus Communication Error | Loss of communication between the Engine Control Unit and the machine display or other modules. | Verify CAN bus termination resistors and wiring integrity; check ECU power and ground connections. |
| P0100 | Air Mass Flow Sensor Circuit Malfunction | Fault in the intake air mass flow sensor circuit or sensor itself. | Inspect the air filter and intake ducting for blockages; check sensor electrical connections and wiring. |
| P0101 | Air Mass Flow Sensor Range/Performance Fault | Sensor signal is out of expected range, often due to dirty sensor or intake leaks. | Clean the air mass flow sensor element; inspect intake system for vacuum leaks or restrictions. |
| P0335 | Crankshaft Position Sensor 'A' Circuit No Signal | Open circuit, short to battery, or sensor failure preventing engine speed detection. | Check the crankshaft position sensor gap and wiring; verify sensor signal output with a diagnostic tool. |
| P0336 | Crankshaft Position Sensor Circuit Range/Performance | Signal irregularity from the crankshaft position sensor, possibly due to a damaged tone wheel. | Inspect the crankshaft sensor and tone wheel for damage or debris; check sensor alignment. |
| P029B | Injector Drift Fault (Injector 2) | Injector 2 mechanical drift exceeds calibrated limits, affecting fuel delivery. | Perform injector balance test; inspect injector 2 wiring and connector for high resistance. |
| P0321 | CAN Bus Message Error for Engine Speed | Invalid or missing engine speed data received via the CAN bus from the engine ECU. | Check CAN bus wiring for shorts or opens; verify engine ECU is sending valid speed data. |
| P0340 | Camshaft Position Sensor Signal Out of Limits | Cam signal last learned value is outside calibrated limits, indicating sensor or timing issue. | Check camshaft position sensor wiring and connector; verify camshaft timing alignment. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
COMPACT II 5108 attachments & work tools
Buckets
JCB offers a range of buckets designed for material handling and excavation tasks. These tools are engineered to connect easily to JCB skid steers and compact track loaders, allowing operators to shift between grading, digging, and material moving applications efficiently.
Breakers
The OEM hydraulic breaker range includes compact, medium, large, and contractor models designed to work with excavator and breaker carrier machines. These units enable the operator to break up frozen or compacted earth surfaces, concrete, and tarmac.
Augers and Drills
Augers and drills are available as work tools to enhance machine versatility for various job site tasks. These attachments allow the base machine to perform specialized drilling operations alongside standard loading and digging duties.
Forks
Pallet forks are provided for material handling applications, enabling the loader to move pallets on a job site. These tools complement the machine's ability to handle diverse tasks with a single carrier.
Tree Spades
The Tree Spade transforms the machine into a high-speed, labor-saving transplanting unit capable of digging, loading, and transporting trees. It features a 25-inch cutting angle that allows for operation in confined areas.
Rippers
Ripper teeth are fabricated units that enable the operator to break up frozen or compacted earth surfaces, as well as concrete or tarmac. JCB offers high flow and standard flow models in 36-inch or 48-inch dig depths to suit various trenching applications.
Lifting Equipment
The lifting equipment range provides safe handling of suspended loads with a compact design that improves operator visibility. These tools utilize a Q-Fit pick-up system to ensure they are easy to attach to the machine.
Coupler Systems
Work tools attach to the base machine using a coupler or quick coupler system. JCB attachments are designed to connect easily to JCB skid steers and compact track loaders, facilitating quick task changes on the job site.
All COMPACT II 5108 assemblies by section
Every catalogued assembly group for the Jcb COMPACT II 5108. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
A Portable Power Packs
A0-1-1 Machine & Engine, Identification
| PP***90 | Engine, Robin Dy35, Diesel | 1 |
| PP***57 | Engine, Lombardini, 530 Series | 1 |
| PP***14 | Engine, Honda, 10 Hp G400 Qzdf | 1 |
A0-1-3 Machine & Engine, Identification
| 92***01 | Engine, Honda, 8hp Gx240 | 1 |
| 92***01 | Engine, Yanmar (Diesel), L70 Ae-D 7hp | 1 |
| 92***01 | Engine, Suzuki, V270 | 1 |
A0-1-4 Machine & Engine, Identification
| 92***01 | Engine, Honda, Gx390 Qx | 1 |
| PP***90 | Engine, Robin Dy35, Diesel | 1 |
| PP***16 | Engine, Robin Dy35, Diesel | 1 |
A0-1-2 Machine & Engine, Identification
| 92***02 | Engine, Honda, 5.3hp Gx160k 1 Qx | 1 |
| PP***00 | Engine, Honda, 5 Hp Gx140 Qx | 1 |
A1-5-9 Chassis
| 13***5Z | Screw, Hexagon M8 X 20mm Long | 0 |
| 13***9Z | Bolt, M8 X 35mm | 0 |
| 13***9Z | Bolt, M10 X 35 | 0 |
A1-5-14 Chassis, Conversion Kit, Mk Ii To Mk Iii
| 13***8Z | Bolt, M10 X 30 | 4 |
| 13***0Z | Bolt, M10 X 40 | 4 |
| 13***2Z | Bolt, Bolt; Qty Was 1 Off Before New Plate. Old Fasteners Were 13***8z X 2 & 13***2z X 1 | 2 |
A1-5-11 Chassis
| 13***0Z | Bolt | 0 |
| 13***3Z | Screw, M6x16 | 0 |
| 13***9Z | Bolt, M8 X 35mm | 0 |
A1-5-7 Chassis
| 13***0Z | Bolt | 0 |
| 13***2Z | Bolt | 0 |
| 13***9Z | Bolt, M8 X 35mm | 0 |
A1-5-10 Chassis
| 13***0Z | Bolt | 0 |
| 13***0Z | Bolt | 0 |
| 13***9Z | Bolt, M8 X 35mm | 0 |
A1-5-8 Chassis
| 13***7Z | Screw, Hexagon M8 X 25 | 0 |
| 13***9Z | Bolt, M10 X 35 | 0 |
| 13***7Z | Bolt | 0 |
A1-5-4 Chassis & Frame
| 13***07 | Bolt | 0 |
| 13***7Z | Bolt, M10x25 | 2 |
| 13***8Z | Bolt, M10 X 30 | 2 |
A1-5-6 Chassis
| 13***0Z | Bolt | 0 |
| 13***2Z | Bolt | 0 |
| 13***9Z | Bolt, M8 X 35mm | 0 |
A1-5-13 Chassis
| 13***8Z | Bolt, M10 X 30 | 0 |
| 13***0Z | Bolt, M10 X 40 | 0 |
| 13***2Z | Bolt, Bolt; Qty Was 1 Off Before New Plate. Old Fasteners Were 13***8z X 2 & 13***2z X 1 | 0 |
A1-5-15 Chassis
| 13***8Z | Bolt, M10 X 30 | 4 |
| 13***0Z | Bolt, M10 X 40 | 2 |
| 13***2Z | Bolt, Bolt; Qty Was 1 Off Before New Plate. Old Fasteners Were 13***8z X 2 & 13***2z X 1 | 3 |
A1-5-12 Chassis
| 13***0Z | Bolt | 0 |
| 13***0Z | Bolt | 0 |
| 13***9Z | Bolt, M8 X 35mm | 0 |
A2-1-6 Pump, Hydraulic, Single
| 13***4Z | Screw, Grub | 0 |
| 13***09 | Capscrew, M6 X 35 | 0 |
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
A2-1-5 Pump, Hydraulic, Single
| 13***4Z | Screw, Grub | 0 |
| 13***09 | Capscrew, M6 X 35 | 0 |
| 14***18 | Seal, Bonded, 1/2" Bsp | 1 |
A2-1-9 Pump, Hydraulic
| 13***4Z | Screw, Grub | 0 |
| 13***09 | Capscrew, M6 X 35 | 0 |
| 14***18 | Seal, Bonded, 1/2" Bsp | 0 |
A2-1-2 Pump, Hydraulic, Single
| 13***03 | Screw, Grub, M8 X 10mm | 0 |
| 13***08 | Capscrew | 4 |
| 13***10 | Capscrew | 0 |
A2-1-10 Pump, Hydraulic, Single
| 13***04 | Screw, Grub | 0 |
| 13***09 | Capscrew, M6 X 35 | 0 |
| 14***18 | Seal, Bonded, 1/2" Bsp | 0 |
A2-1-8 Pump, Hydraulic
| 13***4Z | Screw, Grub | 0 |
| 13***08 | Capscrew | 0 |
| 14***18 | Seal, Bonded, 1/2" Bsp | 0 |
A2-1-7 Pump, Hydraulic
| 13***1Z | Screw, Grub | 0 |
| 13***08 | Capscrew | 0 |
| 14***18 | Seal, Bonded, 1/2" Bsp | 0 |
A3-1-9 Valve, Relief
| 13***8Z | Bolt, M8x80mm Long | 0 |
| 14***18 | Seal, Bonded, 1/2" Bsp | 0 |
| 16***04 | Adapter, Male/Female | 0 |
A3-1-6 Valve, Control
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 14***18 | Seal, Bonded, 1/2" Bsp | 0 |
| 14***6Z | Washer, M6 | 0 |
A3-1-7 Valve, Control
| 13***2Z | Capscrew, M6 X 50 | 0 |
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 14***18 | Seal, Bonded, 1/2" Bsp | 0 |
A3-1-8 Valve Assembly
| 13***2Z | Capscrew, M6 X 50 | 0 |
| 14***11 | Seal, Bonded | 0 |
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
A3-1-11 Valve Assembly
| 13***3Z | Capscrew | 0 |
| 13***2Z | Capscrew, M6 X 50 | 0 |
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
A3-1-4 Valve, Control
| 13***7Z | Bolt, M10x25 | 0 |
| 13***05 | Screw, Cap | 0 |
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
A3-1-10 Valve, Manual
| 13***8Z | Bolt, M8x80mm Long | 0 |
| 14***18 | Seal, Bonded, 1/2" Bsp | 0 |
| 16***04 | Adapter, Male/Female | 0 |
A4-3-2 Hydraulic Circuit, Solite
| 14***18 | Seal, Bonded, 1/2" Bsp | 0 |
| 22***06 | Clip, Jubilee | 0 |
| 9***9 | Hose, Pump Suction | 0 |
A4-3-16 Hydraulic Circuit, Beaver Ii & Iii
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 14***18 | Seal, Bonded, 1/2" Bsp | 0 |
| 14***21 | Seal, Bonded 3/4" Bsp | 0 |
A4-3-9 Hydraulic Circuit, Trojan I
| 14***18 | Seal, Bonded, 1/2" Bsp | 0 |
| 14***21 | Seal, Bonded 3/4" Bsp | 0 |
| 22***06 | Clip, Jubilee | 0 |
A4-3-11 Hydraulic Circuit, Trojan Ii
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 14***18 | Seal, Bonded, 1/2" Bsp | 0 |
| 14***21 | Seal, Bonded 3/4" Bsp | 0 |
A4-3-7 Hydraulic Circuit, Beaver Ii
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 14***18 | Seal, Bonded, 1/2" Bsp | 3 |
| 14***21 | Seal, Bonded 3/4" Bsp | 0 |
A4-3-10 Hydraulic Circuit, Trojan Ii
| 13***06 | Nut | 0 |
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 14***18 | Seal, Bonded, 1/2" Bsp | 0 |
A4-3-15 Hydraulic Circuit, Compact Ii
| 14***18 | Seal, Bonded, 1/2" Bsp | 0 |
| 14***21 | Seal, Bonded 3/4" Bsp | 0 |
| 16***04 | Adapter, Male/Female | 0 |
A4-3-5 Hydraulic Circuit, Compact I & Beaver I
| 14***18 | Seal, Bonded, 1/2" Bsp | 0 |
| 22***06 | Clip, Jubilee | 0 |
| 61***00 | Hose, 1/2"Bsp X 320mm | 0 |
A4-3-13 Hydraulic Circuit, Compact Ii
| 14***18 | Seal, Bonded, 1/2" Bsp | 0 |
| 16***04 | Adapter, Male/Female | 0 |
| 22***06 | Clip, Jubilee | 0 |
A4-3-17 Pressure Gauge, Beaver
| 92***01 | Adapter, Tee | 0 |
| 92***02 | Connector | 0 |
| A2***58 | Panel, Gauge | 0 |
A5-1-6 Tank, Hydraulic
| 13***8Z | Bolt | 0 |
| 13***3Z | Screw, M6x16 | 0 |
| 13***5Z | Bolt | 0 |
A5-1-9 Tank, Hydraulic
| 13***6Z | Bolt, 5/16"Unf X 1" Long | 0 |
| 13***5Z | Bolt | 0 |
| 13***8Z | Screw, M8x30 | 0 |
A5-1-4 Fan Housing
| 13***06 | Bolt | 0 |
| 13***3Z | Bolt | 0 |
| 13***03 | Bolt | 0 |
A5-1-2 Tank & Filter, Hydraulic
| 13***2Z | Bolt | 0 |
| 13***03 | Nut | 0 |
| 13***05 | Screw, Cap | 0 |
A5-1-10 Tank, Hydraulic
| 13***0Z | Bolt | 0 |
| 13***3Z | Screw, M6x16 | 0 |
| 13***5Z | Bolt | 0 |
A5-1-8 Tank, Hydraulic
| 13***6Z | Bolt, 5/16"Unf X 1" Long | 0 |
| 13***6Z | Bolt | 4 |
| 13***5Z | Bolt | 0 |
A5-1-3 Fan Housing
| 13***05 | Bolt | 0 |
| 13***06 | Bolt | 0 |
| 13***03 | Bolt | 0 |
A5-1-11 Tank, Hydraulic
| 13***0Z | Bolt | 0 |
| 13***3Z | Screw, M6x16 | 0 |
| 13***5Z | Bolt | 0 |
A5-1-7 Tank, Hydraulic
| 13***0Z | Bolt | 0 |
| 13***3Z | Screw, M6x16 | 0 |
| 13***5Z | Bolt | 0 |
A6-1-14 Ram, Power On Demand, Beaver Iii Lobardini, Models 929/17200 & 929/18000
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 92***00 | Ram, Power On Demand | 0 |
| 92***03 | Link, Spring | 0 |
A6-1-2 Ram, Power On Demand
| 13***3Z | Nut | 0 |
| 13***2Z | Nut; Replaces 162l006vr, San 12352 | 0 |
| 13***0Z | Capscrew | 0 |
A6-1-9 Ram, Power On Demand, Beaver I,Ii & Iii, Honda Engine Models
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 92***00 | Ram, Power On Demand | 0 |
| A2***49 | Pipe, Bundy | 0 |
A6-1-17 Ram, P.O.D.
| 13***1Z | Nut | 2 |
| 24***03 | O Ring | 1 |
| 33***94 | Ram Cylinder (P.O.D. | 1 |
A6-1-11 Ram, Power On Demand, Trojan I Diesel
| 13***02 | Nut | 0 |
| 13***09 | Capscrew, M6 X 35 | 0 |
| 14***18 | Seal, Bonded, 1/2" Bsp | 0 |
A6-1-7 Ram, Power On Demand
| 13***5Z | Bolt, M5 X 20mm Long | 0 |
| 13***3Z | Screw, M6x16 | 0 |
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
A6-1-12 Ram, Power On Demand, Trojan Ii Diesel
| 14***08 | Seal, Washer | 0 |
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 16***01 | Adapter | 0 |
A6-1-8 Ram, Power On Demand
| 13***3Z | Screw, M6x16 | 0 |
| 13***02 | Nut | 0 |
| 13***09 | Capscrew, M6 X 35 | 0 |
A6-1-5 Ram, Power On Demand
| 13***3Z | Screw, M6x16 | 0 |
| 13***02 | Nut | 0 |
| 13***09 | Capscrew, M6 X 35 | 0 |
A6-1-10 Ram, Power On Demand, Beaver Ii & Iii, Yanmar Engine Models
| 13***4Z | Capscrew | 0 |
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 14***6Z | Washer, M6 | 0 |
A6-1-6 Ram, Power On Demand
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 14***02 | Screw | 1 |
| 92***00 | Ram, Power On Demand | 0 |
A6-1-15 Ram, Power On Demand, Beaver Iii Suzuki, Model 929/16600
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 92***00 | Ram, Power On Demand | 0 |
| 92***02 | Bracket, Mounting | 0 |
A6-1-13 Ram, Power On Demand, Trojan I & Ii Petrol
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 92***00 | Ram, Power On Demand | 0 |
| 92***09 | Bracket, Mounting | 0 |
A6-1-16 Ram, Power On Demand, Compact Iii
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 92***00 | Ram, Power On Demand | 0 |
| A2***27 | Pipe, Bundy | 0 |
A6-1-4 Ram, Power On Demand
| 13***02 | Nut | 0 |
| 13***09 | Capscrew, M6 X 35 | 0 |
| 14***18 | Seal, Bonded, 1/2" Bsp | 0 |
A6-1-1 Ram, Power On Demand
| 13***2Z | Nut; Replaces 162l006vr, San 12352 | 0 |
| 13***05 | Screw, Cap | 0 |
| 13***09 | Capscrew, M6 X 35 | 0 |
A9-1-6 Battery & Components, Trojan I, Models 929/02800, 929/03400
| 13***1Z | Setscrew, M6 X 12mm Long | 0 |
| 13***3Z | Nut | 0 |
| 14***5Z | Washer, M5; Replaces 69***59 | 0 |
A9-1-5 Battery & Components, Trojan I, Model 929/02600 Only
| 13***1Z | Setscrew, M6 X 12mm Long | 0 |
| 13***9Z | Bolt | 0 |
| 13***10 | Screw, Cap | 0 |
A9-1-3 Battery & Components, Solite 5063
| 13***5Z | Bolt | 0 |
| 13***3Z | Nut | 0 |
| 14***5Z | Washer, M5; Replaces 69***59 | 0 |
A9-1-4 Battery & Components, Solite 5080
| 13***03 | Bolt | 0 |
| 13***10 | Screw, Cap | 0 |
| 14***6Z | Washer, M6 | 0 |
A9-1-9 Battery & Components, Beaver Iii
| 12***03 | Tie, Cable, L=300mm X W=7.6mm | 0 |
| 13***4Z | Bolt, M6 X 60 | 0 |
| 13***5Z | Bolt, M6 X 35 | 0 |
A9-1-2 Battery & Components, Solite 5060
| 13***5Z | Bolt | 0 |
| 13***3Z | Nut | 0 |
| 14***5Z | Washer, M5; Replaces 69***59 | 0 |
A9-1-7 Battery & Components, Trojan Ii 20 Litre, Models 929/02600, 929/02800
| 13***1Z | Setscrew, M6 X 12mm Long | 0 |
| 13***03 | Nut | 0 |
| 14***5Z | Washer, M5; Replaces 69***59 | 0 |
A9-1-8 Battery & Components, Trojan Ii 30 Litre, Model 929/03400 Only
| 13***1Z | Setscrew, M6 X 12mm Long | 0 |
| 13***3Z | Nut | 0 |
| 14***5Z | Washer, M5; Replaces 69***59 | 0 |
B Handheld Attachments
B4-2-1 Valve Control, Chainsaw
| 13***2P | Screw, Cap | 0 |
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 14***18 | Seal, Bonded, 1/2" Bsp | 0 |
B4-2-2 Valve, Control, Disc Cutter
| 13***01 | Screw, Grub, Cutting Disc | 0 |
| 13***2P | Screw, Cap | 0 |
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
B4-3-2 Disc Cutter 5024
| 13***03 | Screw, Cap | 0 |
| 14***09 | Washer, M12, Plain | 0 |
| 14***05 | Washer, 'S' | 0 |
B4-3-1 Chainsaw Model 5023
| 5***3 | Tool, Chain Saw, Complete | 0 |
| A3***50 | Guard | 0 |
| A3***73 | Guard, Hand | 0 |
B4-1-1 Motor Drive, Disc Cutter/Chainsaw, Models 5023, 5024
| 13***2Z | Capscrew, M5 X 12 | 0 |
| 9***1 | Kit-Seal | 1 |
| 9***3 | Kit-Seal | 1 |
B4-3-3 Chassis, Disc Cutter/Chainsaw, Models 5023, 5024
| 13***05 | Bolt | 0 |
| 13***01 | Screw, Cap | 0 |
| 13***05 | Screw | 0 |
B5-3-1 Drill Bits, & Accessories
| 99***01 | Bit, Drill | 1 |
| 99***02 | Bit, Drill | 1 |
| 99***03 | Bit, Drill | 1 |
B5-2-1 Drill, Rotary Percussive, Model 5020
| 13***07 | Screw, Cap | 0 |
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 14***7Z | Washer, Spring | 0 |
B5-1-1 Motor & Valve, Drill, Rotary Percussive, Model 5020
| 13***02 | Capscrew, M5 X 12 | 0 |
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 14***05 | Washer, 'S' | 0 |
B6-1-10 Breaker, Jcb 26kg, 20 & 30 Litre, Standard
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 14***18 | Seal, Bonded, 1/2" Bsp | 0 |
| 21***5Z | Pin, Tension | 0 |
B6-2-3 Breaker Steels, 25mm (1") Shank
| PP***11 | Tool, Chisel, 22kg | 0 |
| PP***12 | Tool, Asphalt Cutter, 22kg | 0 |
| PP***13 | Tool, Rammer Pad Stem | 0 |
B6-2-2 Breaker Steels, 22mm (7/8") Shank
| PP***58 | Tool, Chisel, 1 Inch (25mm) Wide | 0 |
| PP***20 | Tool, Rammer Stem | 0 |
| PP***21 | Tool, Tarmac Cutter 5" | 0 |
B6-1-11 Breaker, Jcb 28kg, 20 & 30 Litre, Flexi-Handles
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 14***18 | Seal, Bonded, 1/2" Bsp | 0 |
| 92***41 | Housing | 1 |
B6-1-13 Demolition Pick Jcb
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 14***18 | Seal, Bonded, 1/2" Bsp | 0 |
| 92***08 | Screw, Charging | 0 |
B6-1-12 Breaker, Stanley, Br67
| 12***00 | Breaker, Road | 0 |
| 12***01 | Handle | 0 |
| 12***02 | Grab | 0 |
B6-1-1 Breaker, Krupp Hm25, Models 995/36400, 5078
| 13***19 | Capscrew, M16x90, Grade 12.9 | 1 |
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 21***03 | Dowel | 0 |
B6-1-6 Pick, 'T' Handle, Krupp Hm12e, Model 5083
| 13***11 | Screw, Cap | 4 |
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 5***9 | Kit-Hose | 0 |
B6-1-4 Pick, Demolition, Krupp Hm12b, Model 5075
| 13***11 | Screw, Cap | 4 |
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 5***9 | Kit-Hose | 0 |
B6-1-8 Breaker, Jcb 20kg, & Hi Power 23kg, Standard
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 14***18 | Seal, Bonded, 1/2" Bsp | 0 |
| 21***5Z | Pin, Tension | 1 |
B6-1-7 Breaker 25 Kg, Npk H-55
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 5***9 | Kit-Hose | 0 |
| 92***00 | Tool, Breaker H-55 | 0 |
B6-1-14 Handles, Demolition Pick
| 14***7Z | Washer, Plain, M8; Replaces Khn1550, San 12620 | 4 |
| 92***32 | Handle, 'D' | 1 |
| 92***33 | Handle, 'T' | 1 |
B6-2-1 Breaker Steels, 32mm (1 1/4") Shank
| 99***14 | Pad, Rammer | 0 |
| 99***15 | Tool, Moil, Tool, Moil; 380mm Long Below Collar. 160mm (6 1/4") Long Above Collar | 0 |
| 99***16 | Tool, Chisel, Narrow | 0 |
B6-1-9 Breaker, Jcb 22kg, & Hi-Power 23kg, Flexi-Handles
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 14***18 | Seal, Bonded, 1/2" Bsp | 0 |
| 92***00 | Breaker, Assembly, 22kg, Flexi - Handles | 1 |
B7-2-1 Pump, Submersible, & Discharge Hose, 1000 Lbf/In2 (69 Bar)
| 13***5Z | Bolt, Star Drive, M8 X 65mm | 0 |
| 13***02 | Nut | 0 |
| 13***8Z | Capscrew | 0 |
B7-3-1 Pump, Submersible, & Discharge Hose, 2000 Lbf/In2 (138 Bar)
| 13***5Z | Bolt, Star Drive, M8 X 65mm | 0 |
| 13***02 | Nut | 0 |
| 13***8Z | Capscrew | 0 |
B7-4-1 Pump, Submersible, & Discharge Hose, 2000lbf/In2 (138 Bar)
| 13***5Z | Bolt, Star Drive, M8 X 65mm | 0 |
| 13***02 | Nut | 0 |
| 13***8Z | Capscrew | 0 |
B8-1-1 Circuit, Lighting
| 9***7 | Kit, Lighting Circuit | 1 |
| PP***32 | Screw, Button Head | 1 |
B8-1-2 Circuit, Lighting
| 92***00 | Kit, Lighting Circuit | 1 |
| PP***32 | Screw, Button Head | 1 |
B9-1-1 Auger, Earth
| 13***4Z | Screw, Grub | 0 |
| 33***78 | Adapter, Pin | 1 |
| 33***92 | Adapter, Assembly | 1 |
B10-5-1 Valve Assembly
| 92***04 | Valve, Assembly | 0 |
| 92***96 | Handle, Twist Grip | 0 |
| 92***97 | Housing, Valve | 0 |
B10-2-1 Impact Mechanism
| 92***01 | Gearbox, Impact | 0 |
| 92***27 | Seal, Oil | 0 |
| 92***28 | Housing, Front | 0 |
B10-1-1 Impact Wrench, 1" Square Drive
| 14***15 | Washer, Seal; Replaces Khj0891 | 0 |
| 92***00 | Wrench, Impact | 0 |
| 92***10 | Handle, Top | 0 |
B10-3-1 Motor Assembly
| 92***02 | Motor, Assembly | 0 |
| 92***54 | Motor | 0 |
| 92***55 | Housing, Motor | 0 |
B10-4-1 Rear Plate Assembly
| 92***03 | Plate, Assembly, Rear | 0 |
| 92***77 | Plate, Rear | 0 |
| 92***78 | Plug | 0 |
Frequently asked questions
What engine does the JCB COMPACT II 5108 use?
The machine uses a JCB DieselMax or EcoMAX engine. These engines operate without Diesel Exhaust Fluid (DEF) or Selective Catalytic Reduction (SCR) systems, allowing for extended 500-hour engine oil intervals.
What is the operating weight of the JCB COMPACT II 5108?
Operating weight varies by configuration and series. The broader compact excavator range spans from 1.8 to 10 tons. Specific models in the line, such as the 86C-2, have an operating weight of approximately 19,180 lb. Verify the exact weight for your serial range with the dealer.
What model replaced the JCB COMPACT II 5108?
The COMPACT series lineage includes the 801 Gravemaster as a predecessor and the 18Z through 100C series as successors. The specific successor to the COMPACT II 5108 depends on the exact serial range and market configuration; consult the dealer for the direct replacement model in your region.
What COMPACT II 5108 owners discuss
What are the typical powertrain and hydraulic behaviors reported for the JCB COMPACT II 5108?
What undercarriage and wear patterns are typical for this machine type?
What engine quirks are associated with this series?
What are common electrical and sensor issues?
What should be checked when buying a used COMPACT II 5108?
What fluid specifications are recommended for routine maintenance?
What safety-critical fixes require dealer verification?
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 COMPACT II 5108. Related factory variants of the same model family:
Need a specific COMPACT II 5108 part?
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