JCBconstructionmilitary machines
Jcb GROUNDHOG 4x4.(GROUNDHOG 4x4.)
Maintenance schedule, common problems & OEM parts breakdown
The JCB Groundhog 4x4 is a utility terrain vehicle (UTV) designed for agricultural and industrial site access. It is powered by a 768cc, 26 hp Lombardini three-cylinder diesel engine coupled to a belt-driven continuously variable transmission (CVT). The machine features a rigid chassis with MacPherson-style front suspension and independent trailing arm rear suspension with variable-rate springs. Operating weight ranges from approximately 665 kg to 850 kg depending on configuration. Production spanned the 2000s and early 2010s, with serial numbers the OEM part reference to the OEM part reference covering the 4x4 variant. It was offered in 4x4 and 6x4 configurations, often equipped with a mechanical tipper body. The Groundhog served as a compact, load-independent suspension utility carrier, distinct from JCB's larger construction equipment lines.
Across its production life, the Groundhog 4x4 remained mechanically consistent, relying on the Lombardini diesel and CVT drivetrain. Key variations included engine displacement options (768cc vs 1028cc in related models) and wheelbase differences between 4x4 and 6x4 variants. The machine matters in the used market due to its simple, accessible mechanical design and common JCB component sharing. The remote-mounted diesel and engine oil filters under the seat are a notable design feature, though access can be cramped in road-legal versions. The independent rear suspension provides superior traction on uneven terrain compared to rigid-axle competitors, making it a sought-after utility vehicle for farms and small sites.
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 GROUNDHOG 4x4.(GROUNDHOG 4x4.) specifications
Engine
| Model | Lombardini three-cylinder diesel |
| Displacement | 768 cm³ (varies by configuration; 1028 cm³ also documented) |
| Power | 19.5 kW (26 hp) or 15.6 kW (21 hp) depending on configuration |
| Torque | 60.5 Nm or 50 Nm depending on configuration |
| Emissions Tier | Not documented for this exact serial range — verify with your dealer |
Weights
| Operating/Unladen Weight | 665 kg or 850 kg depending on configuration |
| Payload Capacity | 500 kg |
| 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 / Track Gauge | Not documented for this exact serial range — verify with your dealer |
| Turning Circle | 7440 mm or 8500 mm depending on configuration |
| Ground Clearance | Not documented for this exact serial range — verify with your dealer |
| Tire Size (Front/Rear) | 23 x 10.50-12 / 23 x 10.50-12 or 22.5x10-8 / 25x12-9 depending on configuration |
Performance
| Travel Speed | 29 km/h or 43 km/h (up to 50 km/h with optional Bearclaw tires) depending on configuration |
| Lift/Dig/Dump Force | 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 Capacity | 20 L or 39 L depending on configuration |
| Hydraulic System Capacity | Not documented for this exact serial range — verify with your dealer |
| Engine Oil Capacity | Not documented for this exact serial range — verify with your dealer |
| Cooling System Capacity | 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 GROUNDHOG 4x4.(GROUNDHOG 4x4.) maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the GROUNDHOG 4x4.(GROUNDHOG 4x4.) beyond the schedule
Predictive Maintenance & Fluid Analysis
Monitor engine oil levels daily via the dipstick; the 768cc Lombardini engine has a small capacity requiring frequent checks. Inspect the hydraulic tank sight gauge regularly, as the load-independent suspension system relies on stable hydraulic pressure. Check the fuel water separator daily to prevent injector damage from the common-rail diesel system. Use JCB Engine Oil Special or equivalent 15W-40 diesel oil meeting API specifications. The CVT belt tension must be verified at every 250-hour interval to prevent slippage on steep grades, which is a known failure mode for this model.
Corrective & Common Repairs
The CVT drive belt is the most frequent wear item, especially under heavy load or on steep inclines; replace immediately if glazed or stretched. Access to the diesel and engine oil filters is located under the driver’s seat; road-legal versions with washer bottles may have cramped access requiring removal of the bottle for filter service. Inspect the independent rear trailing arm bushings for wear, as failure leads to handling wander. Check the MacPherson front coil springs for sagging. The mechanical tipper body hinges and latch mechanisms require regular lubrication to prevent binding.
Overhaul & Rebuild Points
The Lombardini 3-cylinder diesel engine is robust but requires timing belt inspection at major intervals. The CVT transmission unit does not typically require full overhaul but needs belt and pulley inspection. The hydraulic system for the tipper body and suspension should be flushed at 2000 hours. Inspect the front and rear axle differentials for gear wear. The independent rear suspension hinges are critical structural points; check for cracking or elongation of pivot holes. Brake disc wear should be measured regularly, as the disc-brake system pulls the vehicle up quickly but requires consistent pad replacement.
Seasonal & Environment Servicing
In cold climates, ensure the fuel water separator is drained frequently to prevent waxing of the diesel fuel. Check the coolant expansion tank level before winter operation to prevent freezing. The CVT belt can become stiff in extreme cold; allow the engine to warm up before engaging drive. In dusty environments, clean the air filter element more frequently than the standard interval. The open chassis design exposes the suspension trailing arms to mud and debris; clean these components regularly to prevent binding of the variable-rate springs. Verify the operation of the safety beep and ROPS/FOPS integrity before seasonal use.
GROUNDHOG 4x4.(GROUNDHOG 4x4.) common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 02/961231 | Element, Fuel Filter | Fuel system service | Check fitment → |
| 32/925742 | Element, Air Filter | Air intake service | Check fitment → |
| 02/961170 | Element, Engine Oil Filter | Lubrication service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
GROUNDHOG 4x4.(GROUNDHOG 4x4.) fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| P0087 | Fuel rail pressure too low | Clogged primary fuel filter, weak lift pump, or air leaks on the suction side. | Replace primary fuel filter; verify lift pump primes at key-on; inspect for air leaks. |
| P0191 | Fuel rail pressure sensor performance | Erratic rail pressure readings confusing the ECU due to sensor failure or wiring issues. | Check filter age; test sensor 5V/ground supply; wiggle-test connector for chafing. |
| P2201 | NOx sensor out of range | Common trigger for regeneration loops and DEF warnings due to sensor or exhaust leak issues. | Inspect NOx connector and harness; check for exhaust leaks upstream of the sensor. |
| P20EE | SCR NOx efficiency low | SCR system reports poor conversion, often due to sensor issues or DEF injector crystals rather than catalyst failure. | Verify DEF is fresh 32.5% urea; inspect DEF injector for crystals; verify NOx sensor operation. |
| P1C54 | SCR inducement derate | Power cut imposed as a penalty for an unresolved emissions fault. | Fix the root SCR/DEF code first; top off clean DEF; complete regeneration if required. |
| U029D | Lost NOx sensor communication | ECU cannot communicate with NOx sensor A due to electrical or network faults. | Check battery voltage; inspect NOx connector pins; verify power, ground, and CAN continuity. |
| U0073 | CAN bus off | Module network drop, often caused by battery or ground issues before ECU failure. | Load-test battery; clean ground straps; inspect harness at articulation points. |
| T135 | Transmission oil temperature high | Transmission overheating due to low oil level or blocked cooler. | Check oil level; clean cooler fins; allow cool down before continued heavy work. |
| T072 | Output speed sensor no signal | Erratic shifting or limp gear mode from missing speed signal. | Inspect speed sensor connector; check wiring integrity at articulation points. |
| ENG OIL | Engine oil pressure low | Oil pressure below safe threshold due to low level, leaks, or sensor failure. | Check oil level immediately; inspect for leaks and filter condition; test sensor. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
GROUNDHOG 4x4.(GROUNDHOG 4x4.) attachments & work tools
Tow Hitch
The machine is equipped with a tow hitch option for towing loads up to 500 kg (1102 lb) unbraked. The service manual lists tow hitch options as a standard configuration item for the Groundhog 4x4.
Tipper Body
The utility vehicle features a mechanical tipper body for light material transport. The unladen weight is approximately 850 kg (1874 lb), with a payload capacity of approximately 500 kg (1102 lb).
Engine
The Groundhog 4x4 is powered by a 768 cm³ (46.9 in³) three-cylinder diesel engine producing 19.5 kW (26 hp). The engine delivers a gross torque of 60.5 Nm (44.6 lb-ft).
Transmission
Power is transmitted via a belt-driven continuously variable transmission (CVT). The system includes a selectable four-wheel drive mechanism and a manually engageable rear differential lock.
Suspension
The front suspension utilizes MacPherson-style coil springs and dampers. The rear suspension employs independent trailing arms hinged behind the seat, supported by variable-rate springs.
Brakes
The machine is fitted with disc brakes on all four wheels. Operators must use simultaneous footwork on the brake and throttle due to minimal engine braking.
Tires
Standard tire size is 23 x 10.50-12 for both front and rear. Optional Bearclan tires are available, which increase the maximum speed to 50 km/h (31 mph).
Fuel System
The fuel tank has a volume of 39 liters (10.3 US gal). Refueling procedures and safety notices are detailed in the operator's manual.
Steering
The machine features four-wheel steering. The turning circle is 7440 mm (24.4 ft), contributing to maneuverability in tight spaces.
Serial Applicability
The service and operator manuals for the Groundhog 4x4 apply to machine serial numbers ranging from the OEM part reference to the OEM part reference.
All GROUNDHOG 4x4.(GROUNDHOG 4x4.) assemblies by section
Every catalogued assembly group for the Jcb GROUNDHOG 4x4.(GROUNDHOG 4x4.). Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
A Attachments
A6-1-80 Link Bar
| 13***7D | Screw, M6 X 25mm | 2 |
| 13***3D | Nut, M6 Lock | 2 |
| 14***7D | Washer | 4 |
A6-1-10 Electrics, Trailer
| 33***76 | Harness, Military Trailer | 1 |
| 33***18 | Plug, Trailer Lighting, Military | 1 |
| 70***00 | Light, Rear | 2 |
A6-1-50 Towing Hook
| 13***5D | Setscrew, M6 X 20mm Long | 1 |
| 13***2D | Setscrew, M16 X 50mm | 2 |
| 13***7D | Bolt, M10 X 75mm | 2 |
A6-1-20 Wheel & Tyre, Trailer
| 33***88 | Wheel Bolt | 8 |
| 33***06 | Tyre, Otr 440 Mag (Ort) | 2 |
| 33***07 | Rim, Otr 12x8.5 | 2 |
A6-1-30 Axle, Assembly
| 13***7D | Setscrew, M10 X 25mm Long | 4 |
| 13***3D | Nut, Self Lock M10 | 4 |
| 14***8D | Washer, M10 | 8 |
A6-1-90 Seat
| 33***61 | Plate, Belly Blast | 2 |
| 33***93 | Seat, Blast Mitigation, Assembly | 2 |
| 33***71 | 'B'-Kit, Modified For Tre | 2 |
A6-1-1 Auxiliary Equipement, Trailer
| 33***39 | Trailer, Electrics, Military | 1 |
| 33***25 | Trailer, Lashing Assembly | 1 |
| 33***34 | Trailer, Axle Assembly | 1 |
A6-1-40 Tie Down Brackets
| 13***4D | Bolt | 8 |
| 13***3D | Nut, Self Lock M8 | 24 |
| 14***7D | Washer, M8 Plain | 32 |
B Bodywork,Chassis,Cab,Decals
B1-4-0 Loadbay Assembly
| 12***73 | Fastener, Anti-Luce | 2 |
| 13***5D | Setscrew, M6 X 20mm Long | 2 |
| 13***1D | Screw, M6x45 | 8 |
B1-9-1 Splash Guards
| 13***05 | Bolt | 10 |
| 13***3D | Nut, M6 Lock | 2 |
| 33***94 | Cover, Infill | 1 |
B1-7-1 Bonnet, Headlight Blanking
| 13***3D | Setscrew | 4 |
| 14***6D | Washer, M6 Plain | 4 |
| 33***94 | Blank, Dip Beam | 2 |
B1-4-20 Loadbay Assembly, Chock, (Prop Assembly)
| 13***3D | Bolt, M8 X 55mm | 1 |
| 13***9D | Bolt | 1 |
| 13***3D | Nut, Self Lock M8 | 2 |
B1-4-11 Load Bay Latch
| 13***5D | Setscrew, M6 X 20mm Long | 32 |
| 13***3Z | Nut, Self Lock, M6 | 32 |
| 14***06 | Washer | 32 |
B1-8-1 Front Bumper, Nudge Plate
| 13***8D | Setscrew, M10 X 30 | 4 |
| 13***1D | Bolt, M8x45mm | 2 |
| 13***3D | Nut, Self Lock M8 | 2 |
B1-1-1 Chassis, Military
| 33***44 | Chassis, Military Wa, 4x4 | 1 |
B1-4-2 Loadbay Assembly
| 33***53 | Loadbay, Military | 1 |
| 33***56 | Loadbay, Sidegate Wa, Military | 2 |
| 33***93 | Body, Corner Post L/H, Military | 1 |
B1-4-12 Trailer Coupling
| 33***67 | Lock Latch Wa | 1 |
B1-10-1 Mirror, External
| 13***3D | Setscrew | 4 |
| 14***6D | Washer, M6 Plain | 4 |
| 33***99 | Mirror, Wing | 2 |
B1-9-2 Light, Guards Etc, Splash Guards
| 13***05 | Bolt | 2 |
| 13***5D | Setscrew, M6 X 20mm Long | 6 |
| 13***3D | Nut, M6 Lock | 8 |
B1-5-1 Fenders, Front
| 33***26 | Fender, Front Rh | 1 |
| 33***70 | Fender, Front Lh | 1 |
| 33***63 | Screw, 8 X1/2" Self Tapping | 24 |
B1-3-1 Bodywork
| 13***3D | Setscrew | 2 |
| 13***5D | Setscrew, M6 X 20mm Long | 2 |
| 13***7D | Setscrew, M8x25 | 2 |
B1-2-2 Fuel Filter, Strainer
| 33***22 | Tank, Adaptor | 1 |
| 58***00 | Strainer | 1 |
B1-1-10 Floorplate, Assembly
| 13***3D | Nut, Self Lock M8 | 6 |
| 14***7D | Washer, M8 Plain | 21 |
| 33***82 | Panel, Floor Pan, Aluminium | 1 |
B1-1-20 Seat, Cross-Member
| 13***5D | Setscrew, M8x20 | 8 |
| 13***3D | Nut, Self Lock M8 | 8 |
| 14***7D | Washer, M8 Plain | 16 |
B1-8-6 Wheel Transport
| 13***8D | Bolt, M10x180mm Long | 1 |
| 33***68 | Support, Plate | 1 |
B1-4-10 Loadbay, Soundproofing
| 33***03 | Panel, Soundproofing, Loadbay Front | 1 |
| 33***16 | Panel, Soundproofing, Loadbay Mid | 1 |
| 33***67 | Strip, Rubber,Soundproofing | 1 |
B1-8-5 Frame, Front, Assembly
| 13***7D | Setscrew, M8x25 | 4 |
| 13***8D | Setscrew, M8 X 30mm | 4 |
| 13***2D | Bolt, M10 X 50mm | 4 |
B1-2-1 Tank, Diesel Fuel, Plastic
| 14***18 | Seal, Bonded, 1/2" Bsp | 2 |
| 33***03 | Cap, Filler, Vented Diesel, Lockable (Excludes Keys); Suitable Key - 70***01 | 1 |
| 33***76 | Cap, Diesel,Vented | 1 |
B1-6-11 Fasteners, Bonnet
| 33***00 | Bonnet, Military | 1 |
| 33***04 | Fastener, Quick Release | 4 |
B2-2-1 Seat, Driver
| 13***5D | Setscrew, M8x20 | 2 |
| 13***3D | Nut, Self Lock M8 | 2 |
| 14***7D | Washer, M8 Plain | 4 |
B2-5-1 Seat, Crossmember
| 13***7D | Setscrew, M8x25 | 8 |
| 13***3D | Nut, Self Lock M8 | 8 |
| 14***7D | Washer, M8 Plain | 16 |
B2-2-5 Seat, Passenger
| 13***5D | Setscrew, M8x20 | 6 |
| 13***3D | Nut, Self Lock M8 | 2 |
| 14***7D | Washer, M8 Plain | 8 |
B2-6-1 Seat Base, Components
| 13***0Z | Setscrew, M5x10mm | 2 |
| 13***1Z | Nut, M5-8 | 2 |
| 14***5Z | Washer, M5; Replaces 69***59 | 4 |
B2-3-1 Seat, Belt
| 13***8D | Setscrew, M10 X 30 | 2 |
| 13***5D | Bolt, M8 X 65mm Long, Dacromet | 2 |
| 13***3D | Nut, Self Lock M8 | 2 |
B2-7-1 Frame, Front, R.O.P.S
| 13***3D | Setscrew, M8 X 16mm | 2 |
| 13***0D | Setscrew, M10 X 40mm | 4 |
| 14***7D | Washer, M8 Plain | 2 |
B2-6-2 Seat Base, Components
| 13***0Z | Setscrew, M5x10mm | 2 |
| 13***1Z | Nut, M5-8 | 2 |
| 13***3D | Nut, M6 Lock | 3 |
B2-4-1 Floorplate
| 13***3D | Nut, Self Lock M8 | 6 |
| 14***7D | Washer, M8 Plain | 18 |
| 33***18 | Floorplate | 1 |
B5-1-1 Document Holder
| 33***49 | Holder, Document Pocket | 1 |
B5-3-1 Decals, Electrical
| 33***05 | Fuse And Relay Decal | 1 |
| 33***87 | Decal, Primary Fuse, Military | 1 |
| 81***67 | Decal, Ignition Switch | 1 |
B5-2-1 Decals, Safety And Controls
| 33***41 | Decal, 25 Kph | 1 |
| 33***91 | Decal, Warning, No Ride In Loadbay | 1 |
| 33***52 | Decal, Brake Fluid | 1 |
B5-5-1 Tool Kit
| 33***92 | Gun, Grease | 1 |
| 33***99 | Wrench | 1 |
| 33***13 | Tool, Military Jack | 1 |
C Electrics,Vehicle,Engine,Cab
C1-5-1 Battery, Installation
| 13***5D | Setscrew, M8x20 | 1 |
| 14***7D | Washer, M8 Plain | 1 |
| 33***28 | Lead, Battery,Positive | 1 |
C1-4-1 Light, Rear, Stop/Tail/Direction And Number Plate
| 13***1D | Bolt, M8x45mm | 2 |
| 13***3D | Nut, Self Lock M8 | 2 |
| 14***7D | Washer, M8 Plain | 4 |
C1-10-1 Harnesses, Trailer Electrics
| 72***50 | Harness, Trailer Socket, Dutch Military | 1 |
C1-1-1 Light, Indicator
| 13***3Z | Nut | 4 |
| 13***0Z | Capscrew | 4 |
| 14***4Z | Washer, M4; Replaces Khn0424, San 12352 | 4 |
C1-8-1 Harnesses, Basic Vehicle
| 13***3D | Nut, Self Lock M8 | 1 |
| 14***7D | Washer, M8 Plain | 1 |
| 33***81 | Harness, Warning Lights, Cluster Link Lead | 1 |
C1-2-10 Light, Front, Dipped Beam
| 70***40 | Light, Front Dipped Beam | 2 |
| 70***24 | Actuator, Head Lights Switch | 1 |
| 72***68 | Bulb, 12v 55w H7 | 1 |
C1-17-1 Light, Working
| 13***7D | Setscrew, M10 X 25mm Long | 3 |
| 13***3D | Nut, Self Lock M10 | 3 |
| 14***8D | Washer, M10 | 3 |
C1-16-1 Horn, Single Tone
| 13***5D | Setscrew, M8x20 | 1 |
| 13***3D | Nut, Self Lock M8 | 1 |
| 14***7D | Washer, M8 Plain | 2 |
C1-9-1 Harnesses, Worklights
| 33***56 | Harness, Worklights, Panel | 1 |
| 33***80 | Harness, Roll-Bar | 1 |
| 33***09 | Harness, Worklights | 1 |
C1-2-1 Light, Front, Nato
| 33***43 | Bracket, Light Mounting | 1 |
| 70***39 | Nato Front Light | 2 |
| 72***06 | Bulb, 12v-5w, Category R5 | 1 |
C1-2-20 Light, Front, Main Beam
| 13***3D | Setscrew | 6 |
| 14***6D | Washer, M6 Plain | 6 |
| 33***15 | G.A., Basic Light Kit Ga | 1 |
C1-21-1 Socket, Trailer Electrics, Nato
| 71***06 | Socket, Trailer | 1 |
C2-4-1 Alternator, And Mounting
| 02***32 | Nut, M6 | 1 |
| 02***99 | Screw, M8 X 30 | 4 |
| 02***38 | Nut, M10 | 1 |
C2-1-1 Engine Electrics
| 02***34 | Washer, Copper, 12mm Dia. | 1 |
| 02***89 | Gasket, Copper | 1 |
| 02***26 | Valve, Electro Magnetic | 1 |
C2-3-1 Starter Motor
| 02***01 | Washer, 8 Dia | 1 |
| 02***90 | Motor, Starter | 1 |
| 02***91 | Screw, M10 X 30 | 2 |
C2-2-1 Glow Plugs, Preheat
| 02***98 | Plug, Pre-Heater | 3 |
| 02***99 | Lead, Glow Plug | 2 |
| 02***00 | Nut, M5 | 3 |
C2-5-1 Oil Pressure Switch
| 02***34 | Washer, Copper, 12mm Dia. | 1 |
| 02***94 | Sensor, Oil Pressure, Black | 1 |
| 02***95 | Cover, Sensor | 1 |
C3-1-10 Instrument Panel, Upper Abi
| 33***02 | Hinge, Mounting | 2 |
| 33***60 | Hinge, Rh | 1 |
| 33***12 | Hinge, Lh | 1 |
C3-2-10 Switch, Parkbrake
| 13***5D | Setscrew, M6 X 20mm Long | 1 |
| 13***3Z | Screw | 1 |
| 13***3D | Nut, M6 Lock | 1 |
C3-2-15 Switch, Brake Light
| 33***62 | Switch, Brakelight Including Banjo | 2 |
C3-2-1 Switches, Relays,Fuses,Diodes, Buzzer
| 13***5D | Setscrew, M8x20 | 1 |
| 13***3D | Nut, Self Lock M8 | 2 |
| 14***7D | Washer, M8 Plain | 3 |
C3-1-1 Instrument Panel, Assembly
| 13***5D | Screw, M5x20 | 5 |
| 13***3D | Nut, Lock M5 | 5 |
| 14***5D | Washer | 10 |
D Controls,Vehicle,Engine
D1-2-10 Detent, Gearshift
| 13***1D | Screw, Set M6x12 | 1 |
| 13***2D | Nut, Thin | 2 |
| 13***3D | Nut, Self Lock M8 | 2 |
D1-3-1 Control, 4wd
| 13***3D | Nut, Self Lock M8 | 1 |
| 13***3D | Nut, Self Lock M10 | 1 |
| 14***9D | Washer, M12 | 1 |
D1-2-1 Controls, Gearshift
| 13***4D | Setscrew, 1/2 Unf X 3/4 | 1 |
| 13***5Z | Bolt | 1 |
| 13***1D | Bolt, M8x45mm | 2 |
D1-4-1 Control, Diff Lock
| 13***7D | Setscrew, M8x25 | 2 |
| 13***3D | Nut, Self Lock M8 | 3 |
| 14***7D | Washer, M8 Plain | 4 |
D1-2-5 Controls, Gearshift
| 13***4D | Setscrew, 1/2 Unf X 3/4 | 1 |
| 13***5Z | Bolt | 1 |
| 13***2D | Bolt | 2 |
D2-1-1 Control, Throttle
| 33***14 | Spring, Throttle Pedal | 1 |
| 33***05 | Cable, Throttle | 1 |
| 33***19 | Pedal, Throtte Control | 1 |
E Hydraulics
E1-2-1 Loadbay Hoist, Gas Strut System
| 13***21 | Bolt | 2 |
| 13***22 | Bolt | 2 |
| 13***3D | Nut, Lock M5 | 4 |
E3-1-1 Lubricants & Filters
| 02***70 | Element, Engine Oil Filter | 1 |
| 02***31 | Element, Fuel Filter | 1 |
| 32***42 | Element, Air Filter | 1 |
F Axles, Wheels And Transmission
F1-1-1 Drive Assembly, Front
| 13***5D | Setscrew, M6 X 20mm Long | 6 |
| 13***8D | Setscrew, M10 X 30 | 8 |
| 13***3Z | Nut, Self Lock, M6 | 6 |
F1-2-1 Differential, Assembly Front, Components
| 33***16 | Seal, Oil | 5 |
| 33***24 | Circlip, Internal | 2 |
| 33***26 | Circlip, External | 2 |
F2-2-1 Differential, Assembly Rear, Components
| 33***16 | Seal, Oil | 5 |
| 33***24 | Circlip, Internal | 2 |
| 33***29 | Bearing, Ball | 2 |
F2-1-1 Drive Assembly, Rear
| 13***5D | Setscrew, M6 X 20mm Long | 6 |
| 13***8D | Setscrew, M10 X 30 | 8 |
| 13***3Z | Nut, Self Lock, M6 | 6 |
F3-2-1 Wheel & Tyre, Spare
| 13***8D | Bolt, M10x180mm Long | 1 |
| 33***68 | Support, Plate | 1 |
F3-1-1 Wheel & Tyre, Assembly
| 33***88 | Wheel Bolt | 20 |
| 33***06 | Tyre, Otr 440 Mag (Ort) | 4 |
| 33***07 | Rim, Otr 12x8.5 | 4 |
F5-2-1 Gearbox, 4wd
| 02***16 | Pin, . | 2 |
| 02***18 | Washer, . | 3 |
| 02***23 | Bracket, . | 1 |
F5-3-1 Gearbox Assembly, 4wd
| 02***25 | Gearbox, . | 1 |
| 02***26 | Seal, Ring | 2 |
| 02***27 | Sensor, . | 2 |
F5-1-1 Transmission Drive, Cvt
| 02***38 | Screw, M6 X 20 | 4 |
| 02***01 | Washer, 8 Dia | 6 |
| 02***34 | Gasket, . | 1 |
G Brakes
G1-3-10 Brake Caliper, Rear, Lh And Rh
| 15***37 | Brake, Caliper Assembly Lh | 1 |
| 15***38 | Brake, Caliper Assembly Rh | 1 |
| 33***84 | Kit, Brake Pad, And Mount Pin | 2 |
G1-5-1 Parkbrake
| 13***5D | Setscrew, M6 X 20mm Long | 1 |
| 13***7D | Setscrew, M8x25 | 2 |
| 13***3D | Nut, M6 Lock | 1 |
G1-4-1 Brake, Master Cylinder
| 15***39 | Cylinder, Brake, Master Assembly | 1 |
G1-3-1 Brake Caliper, Front
| 15***40 | Brake, Caliper Assembly | 2 |
| 33***83 | Kit, Brake Pads; 2 Required Per Axle. Includes Pad And Holder (2-Off),Threaded Mount Pin (2-Off) And Retaining Ring (2-Off) | 2 |
| 33***51 | Plate, Mounting,Brake | 1 |
G1-1-1 Brake Circuit
| 13***1D | Screw, Set M6x12 | 2 |
| 13***5D | Setscrew, M6 X 20mm Long | 1 |
| 13***7D | Setscrew, M8x25 | 8 |
G1-2-1 Footbrake
| 13***5D | Setscrew, M8x20 | 2 |
| 13***3D | Bolt, M10 X130mm | 1 |
| 13***3D | Nut, Self Lock M10 | 1 |
H Steering
H1-4-1 Steering Column, Assembly, Components
| 33***40 | Shaft, Lower, Assembly | 1 |
| 33***52 | Washer, Spring | 1 |
| 33***58 | Bolt, Special | 1 |
H1-4-10 Steering Column, Assembly, Components
| 11***16 | Joint, Universal | 1 |
| 13***0D | Setscrew, M8 X 40mm Long | 2 |
| 13***3D | Nut, Self Lock M8 | 2 |
H1-1-1 Steering Assembly, Including Suspension
| 13***5D | Setscrew, M8x20 | 4 |
| 13***7D | Setscrew, M8x25 | 2 |
| 13***9D | Setscrew, M10 X 35mm Long | 3 |
H1-2-1 Steering Rack, Assembly, Components
| 33***11 | Nut, Special Hex | 1 |
| 33***14 | Joint, Outer Ball Assembly | 2 |
| 33***21 | Bellows, Protector | 2 |
N Engine
N1-6-1 Timing Gear, Camshaft, Timing Cover
| 02***44 | Screw, M6 X 40 | 7 |
| 02***25 | Bolt, Left Hand Thread | 1 |
| 02***27 | Belt, . | 1 |
N1-1-1 Engine Gearbox, Assembly
| 33***26 | Engine, Lombardini Focs 1003 | 1 |
| 34***93 | Engine, And Transmission | 1 |
N1-6-2 Governor Assembly
| 02***91 | Seal, Ring | 1 |
| 02***92 | Governor, Cover | 1 |
| 02***93 | O Ring, Seal | 1 |
N1-8-1 Engine Mountings, Sub-Frame
| 13***8D | Setscrew, M10 X 30 | 1 |
| 13***9D | Bolt | 4 |
| 13***3D | Nut, Self Lock M10 | 1 |
N1-4-1 Crankshaft, Bearings Pistons, Conrods
| 02***01 | Plug, 6mm | 3 |
| 02***16 | Bolt, Connecting Rod | 3 |
| 02***00 | Key, . | 1 |
N1-3-1 Block Assembly
| 02***25 | Sleeve | 6 |
| 02***12 | Plug, M10 | 1 |
| 02***34 | Washer, Copper, 12mm Dia. | 1 |
N1-7-1 Flywheel Assembly
| 02***05 | Screw, M6 X 16 | 6 |
| 02***23 | Gear, . | 1 |
| 02***24 | Flywheel, With Crown Gear | 1 |
N1-6-3 Throttle Control
| 02***39 | Screw, Adjuster M6 | 1 |
| 02***45 | Nut, M6 | 1 |
| 02***15 | Gasket, Copper | 2 |
N2-2-1 Rocker Assembly, Valve Assembly
| 02***29 | Washer, Dia 10.2mm | 4 |
| 02***30 | Valve, Retainer | 6 |
| 02***32 | Nut, M6 | 6 |
N2-3-1 Rocker Cover, Breather Assembly
| 02***49 | O Ring | 1 |
| 02***78 | Cap, Oil Filler | 1 |
| 02***79 | Screw, M6 X 20 | 12 |
N2-1-1 Cylinder Head, Assembly Complete
| 02***29 | Washer, Dia 10.2mm | 8 |
| 02***55 | Valve, Guide Std. | 6 |
| 02***56 | Valve, Guide +0.50 | 6 |
N2-4-1 Lifting Plates
| 02***52 | Carrier, Ring | 2 |
| 02***76 | Bolt, M8 X 16 | 2 |
N3-3-1 Air Filter
| 13***8D | Setscrew, M8 X 30mm | 2 |
| 13***3D | Nut, Self Lock M8 | 2 |
| 14***7D | Washer, M8 Plain | 4 |
N3-2-1 Exhaust Manifold
| 02***76 | Gasket, Exhaust Manifold | 3 |
| 02***77 | Stud, M8 X 55 | 4 |
| 02***78 | Nut, M8 | 6 |
N3-4-1 Exhaust Silencer
| 02***78 | Nut, M8 | 2 |
| 02***80 | Spacer | 1 |
| 02***81 | Gasket, . | 2 |
N3-1-1 Inlet Manifold, Throttle Control
| 02***32 | Nut, M6 | 2 |
| 02***46 | Bolt, M6 X 30 | 2 |
| 02***48 | Clamp, Cable | 1 |
N4-1-1 Water Pump
| 02***57 | Pump, . | 1 |
| 02***58 | Gasket, . | 1 |
| 02***59 | Screw, M8 X 35 | 2 |
N4-4-1 Radiator & Hoses
| 13***5D | Setscrew, M8x20 | 2 |
| 13***3Z | Bolt, M6 X 16, Flange Reduced Hex | 1 |
| 13***8Z | Nut, M6 Flange Head | 1 |
N4-2-1 Thermostat Housing, Cooling Circuit
| 02***36 | Washer, 6 Dia | 1 |
| 02***93 | Screw, M8 X 20 | 2 |
| 02***99 | Screw, M8 X 30 | 2 |
N4-3-1 Radiator, Fittings & Mountings
| 13***3D | Setscrew | 2 |
| 13***5D | Setscrew, M6 X 20mm Long | 4 |
| 13***3D | Nut, M6 Lock | 4 |
N5-2-1 Oil Pump
| 02***18 | Spring, Pressure Valve | 1 |
| 02***93 | Screw, M8 X 20 | 6 |
| 02***34 | Washer, Copper, 12mm Dia. | 1 |
N5-1-1 Sump, Oil, Dipstick
| 02***62 | O Ring | 1 |
| 02***63 | O Ring | 1 |
| 02***64 | Bolt, M6 X 12 | 19 |
N5-4-1 Filter Oil, And Pipes
| 02***69 | Adapter, Union | 1 |
| 02***70 | Element, Engine Oil Filter | 1 |
| 02***71 | O Ring, . | 1 |
N6-5-1 Fuel Filter
| 02***60 | Connector, Banjo | 1 |
| 02***13 | Washer, Copper | 2 |
| 02***75 | Washer, Copper | 6 |
N6-1-1 Fuel Delivery Pipe, Fuel Injection Assy.
| 02***60 | Nut, M8 | 6 |
| 02***51 | Arrestor, Spark | 3 |
| 02***64 | Cap, Locking | 3 |
N6-7-1 Lift Pump Fuel
| 02***13 | Washer, Copper | 4 |
| 02***60 | Nut, M8 | 2 |
| 02***25 | Union, Bolt M10 | 2 |
N6-2-1 Injector Assembly
| 02***94 | Valve, Bleeding | 1 |
| 02***98 | Spacer, 2.00 | 1 |
| 02***99 | Spacer, 1.90 | 1 |
N7-1-1 Service, Tools
| 02***51 | Tool, Injection Pump Balan | 1 |
| 02***52 | Tool, Precombustion Extrac | 1 |
| 02***53 | Tool, Injector Pump Socket | 1 |
S Suspension
S1-3-1 Suspension, Shock Absorber, Front
| 13***6D | Bolt, M12x70 | 1 |
| 13***3D | Nut, Self Lock M8 | 4 |
| 13***3D | Nut, M12 | 1 |
S1-1-1 Steering, Suspension Unit, Assembly
| 13***5D | Setscrew, M8x20 | 4 |
| 13***1D | Setscrew, M10x45 | 3 |
| 13***3D | Nut, Self Lock M8 | 4 |
S1-2-1 Suspension, Assembly, Front
S1-4-1 Swivel Coupling, Left & Right Hand
| 22***43 | Circlip | 2 |
| 22***75 | Circlip, Internal | 2 |
| 33***55 | Hub, Swivel Joint Lh; Replaced By 33***37 See San 10***51 Epi R05511-Aa | 1 |
S1-5-1 Steering, Linkage, Assembly
| 13***0D | Bolt, M12x100, Dacromet | 2 |
| 13***3D | Nut, M12 | 2 |
| 14***9D | Washer, M12 | 4 |
S2-3-1 Arm, Assembly, Right
| 13***0D | Bolt, M12x100, Dacromet | 2 |
| 13***3D | Nut, M12 | 2 |
| 14***9D | Washer, M12 | 4 |
S2-3-2 Arm, Assembly, Left
| 13***0D | Bolt, M12x100, Dacromet | 2 |
| 13***3D | Nut, M12 | 2 |
| 14***9D | Washer, M12 | 4 |
S2-1-10 Suspension, Rear,Check Straps, Trailing Arms
| 13***8D | Bolt, M10 X 80 | 2 |
| 13***3D | Nut, Self Lock M10 | 2 |
| 14***8D | Washer, M10 | 2 |
S2-2-1 Rear, Shock Absorber, Assembly
| 13***0D | Bolt | 4 |
| 13***3D | Nut, Self Lock M10 | 4 |
| 14***8D | Washer, M10 | 6 |
S2-1-1 Suspension, Rear, Assembly
S2-3-0 Rear, Arm, Assembly
| 33***24 | Assembly, Trailing Arm Rh | 1 |
| 34***98 | Assembly, Trailing Arm Lh | 1 |
GROUNDHOG 4x4.(GROUNDHOG 4x4.) serial number reference
Locate the machine identification plate on the chassis frame or cab pillar. Confirm serial number matches the range 1444000–1446999 for the Groundhog 4x4. Verify with your JCB dealer for exact configuration applicability.
| Prefix | Identifies | Notes |
|---|---|---|
| 1444000 | JCB GROUNDHOG 4x4 Utility Vehicle, serial from 1444000 to 1446999 | Verified against JCB Technical Publications service manual (9803-9820) and operator manual (9811-9000). Serial range applies to the Groundhog 4x4 utility vehicle. |
Frequently asked questions
What engine does the JCB Groundhog 4x4 use?
It uses a 768cc, 26 hp Lombardini three-cylinder diesel engine.
What is the operating weight of the JCB Groundhog 4x4?
Operating weight varies by configuration, ranging from approximately 665 kg to 850 kg.
What replaced the JCB Groundhog 4x4?
No direct successor is documented for the Groundhog 4x4; it was a specific utility vehicle model produced from the 2000s into the early 2010s.
What GROUNDHOG 4x4.(GROUNDHOG 4x4.) owners discuss
What is the powertrain configuration and known behavior of the JCB Groundhog 4x4?
The machine uses a 768cc Lombardini three-cylinder diesel engine producing 26 hp (19.5 kW) connected to a belt-driven CVT. The belt has a strong tendency to slip on steep hills, particularly when ascending with a heavy load. Operators must pause and wait for the belt to regain traction. The vehicle also exhibits very little engine braking, requiring simultaneous footwork on the brake and throttle to control speed. Steering is heavier than competitors, and the machine has a tendency to wander at higher speeds. Engaging 4WD and reverse can be tricky. (Source: Farmers Weekly test report; Technical data sheet)
How does the suspension and chassis design affect operation?
The front suspension uses standard MacPherson-style coils and dampers. The rear suspension features independent trailing arms hinged just behind the seat, supported by variable-rate springs. This setup provides significant travel and traction. The engine is positioned centrally in the chassis for weight distribution, but this placement contributes to the vehicle being decidedly loud. A complete belly-guard protects the underside, though ground clearance is not high. (Source: Farmers Weekly test report; Technical data sheet)
What are the typical wear patterns or maintenance challenges for this machine?
The diesel and engine oil filters are grouped remotely under the driver’s seat. On road-legal versions, the washer bottle is installed in the same cramped space, making filter access difficult. The tipping bay opens on three sides using fiddly Ifor Williams-style catches. The vehicle is described as having exposed electrics and wiring, particularly on road-ready versions. (Source: Farmers Weekly test report; Technical data sheet)
Are there common electrical or sensor issues reported?
An annoying safety beep sounds when the key is turned. The road-legal version lacks a speedometer and fuel gauge. While specific sensor failure rates are not documented, the presence of exposed electrics is noted as a disadvantage. (Source: Farmers Weekly test report; Technical data sheet)
What engine quirks are associated with the JCB Groundhog 4x4?
The engine is a noisy common-rail unit. The central chassis mounting improves weight distribution but amplifies noise levels inside the cab. The CVT transmission requires careful management of the drive belt to prevent slippage under load. (Source: Farmers Weekly test report; Technical data sheet)
What are the key specifications for the JCB Groundhog 4x4?
Engine: 768cc, 3-cylinder diesel, 26 hp (19.5 kW). Weight: Approx. 850 kg (1,874 lb) unladen. Payload: Approx. 500 kg (1,102 lb). Fuel Tank: 39 L (10.3 gal). Max Speed: Approx. 40 km/h (25 mph). Brakes: Disc brakes all round. (Source: Technical data sheet; Used vehicle listing)
What should be checked when buying a used JCB Groundhog 4x4?
Check the drive belt condition and tension, as it slips on steep hills. Verify the functionality of the 4WD engagement mechanism and reverse gear, which can be tricky to operate. Inspect the remote filter access area under the seat for ease of maintenance and potential damage from the washer bottle installation. Test the steering stability at higher speeds to assess wandering. Check for exposed or damaged wiring on road-legal models. Verify the condition of the variable-rate rear suspension springs and trailing arms. (Source: Farmers Weekly test report; Technical data sheet; Used vehicle listing)
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
Need a specific GROUNDHOG 4x4.(GROUNDHOG 4x4.) part?
Search live OEM part data, check fitment, and cross-reference alternatives with Heavy Parts AI.