JCB Fastrac 8330 service schedule

JCB Fastrac 8000 series · 8330-4 (listed 2016–2019) and 8330-6. The earlier 8000 series tractors (8250, 8280, 8310, Cummins or Sisu engines) are not covered: check your handbook

Covers the JCB Fastrac 8330 (8000 series).

Every maker's service job for the JCB Fastrac 8330, counted in hours, with the oils, filters and parts each one needs. Add your tractor to Farmyard Workshop and it works out what's due from your hours and dates, and keeps the service history.

Track your Fastrac 8330 for free

Versions: 8330-4 (AGCO 84 AWF engine); 8330-6 (AGCO Power 84 LFVC engine, Stage IV / T4F)

Service intervals

Job	When
50-hour greasing	every 50 hours
Engine oil and filter change	every 500 hours or every 6 months
Engine fuel filter change	every 500 hours or every 6 months
Hydraulic tank element change (between oil changes)	every 500 hours or every 6 months
Hub reduction oil change (four hubs)	every 500 hours or every 6 months
CVT transmission element change (between oil changes)	every 1,000 hours or every year
Engine air filter, main element	every 1,000 hours or every year
Front and rear differential oil change	every 1,000 hours or every year
Hydraulic oil and filter change	every 2,000 hours or every 2 years
Transmission oil and CVT filter change	every 2,000 hours or every 2 years
Engine air filter, safety element	every 2,000 hours or every 2 years
Cab air filters (recirculation and fresh air)	every 2,000 hours or every 2 years
Coolant change	every 2,000 hours or every 2 years
Hydraulic brake fluid change (front and rear circuits)	every 2,000 hours or every 2 years

Service jobs and parts

50-hour greasing

Chassis · every 50 hours

Eurol's guide lists the grease points as a 50-hour check. The list of points is not given in any source we could read, so use the diagram in your handbook.

Part	Qty	Notes	Part number
Grease	1	Type: check your handbook	check your handbook

Step-by-step

Park level, lower implements, stop the engine, take the key out and chock the wheels.
Wipe each nipple clean, then grease the points on the handbook's diagram.
Wipe off surplus grease so dirt does not stick.

Tools: Grease gun, Rags

Engine oil and filter change

Engine · every 500 hours or every 6 months

Eurol's guide gives the engine oil every 500 hours, with a level check every 10 hours. JCB's kit chart for the 8330-6 T4F puts the engine oil filter in every 500-hour kit, so the filter goes on with the oil every time. Months are given as 6 to be safe on low-hours tractors; check your handbook.

Part	Qty	Notes	Part number
Engine oil	1	Grade and spec: check your handbook. ≈24 L	check your handbook
Engine oil filter	1	Genuine JCB number from JCB's kit chart for the 8330-6 T4F. The 8330-4 (84 AWF engine) may use another filter: check by serial number	336/E2954
Sump plug washer	1	Check your handbook	check your handbook

Step-by-step

Park on firm level ground, lower the linkage and any implement, stop the engine, take the key out and chock the wheels.
Let it stand a few minutes so the oil is warm, not scalding. Wear gloves.
Remove the sump plug and let the oil drain fully.
Clean around the filter head, remove the old filter and check its seal came off with it.
Oil the new filter seal and fit by hand as marked on the filter.
Refit the plug with a new washer and fill with about 24 L of the oil your handbook specifies.
Run the engine for a minute, check for leaks, stop, wait and recheck the dipstick.
Take the old oil to a proper disposal point.

Tools: Drain tray (30 L), Filter wrench, Socket for sump plug, Funnel, Rags, Gloves

Engine fuel filter change

Fuel · every 500 hours or every 6 months

JCB's kit chart for the 8330-6 T4F puts the engine fuel filter in every 500-hour kit. Common-rail injectors are easily damaged by dirt and water.

Part	Qty	Notes	Part number
Engine fuel filter	1	Genuine JCB number from JCB's kit chart for the 8330-6 T4F. A reseller also lists 320/07416 for the Fastrac 8330 and 8250: confirm by serial number	400/H9310

Step-by-step

Stop the engine, take the key out and chock the wheels. Keep naked flames away.
Clean around the filter head.
Drain into a container, remove the old filter and fit the new one with a lightly oiled seal.
Prime the fuel system as your handbook describes. Never crack open high-pressure pipes on a common-rail engine.
Start the engine, let it idle and check for leaks.

Tools: Container for fuel, Filter wrench, Rags, Gloves

Hydraulic tank element change (between oil changes)

Hydraulics · every 500 hours or every 6 months

JCB's kit chart for the 8330-6 T4F lists the hydraulic tank element in every 500-hour kit, much more often than the oil (2,000 hours).

Part	Qty	Notes	Part number
Hydraulic tank element	1	Genuine JCB number from JCB's kit chart for the 8330-6 T4F	336/E1984

Step-by-step

Park on firm level ground, lower implements, stop the engine, take the key out and chock the wheels.
Work the controls to release pressure. Clean around the filter housing, open it and remove the element.
Fit the new element with a new seal and close the housing.
Start the engine, check for leaks, lower everything and check the oil level.

Tools: Spanners, Drain tray, Lint-free rags, Gloves

Hub reduction oil change (four hubs)

Axles · every 500 hours or every 6 months

Eurol's guide gives the hub reductions every 500 hours or 6 months.

Part	Qty	Notes	Part number
Hub reduction oil	4	Grade and spec: check your handbook. Front ≈4 L per hub, rear ≈7 L per hub	check your handbook

Step-by-step

Park on firm level ground, lower implements, stop the engine, take the key out and chock the wheels.
Turn each hub so the plug is at the bottom, drain it, then turn it to the level position.
Fill to the level plug, refit the plugs and wipe the hubs clean.

Tools: Drain tray, Spanners or hex key for plugs, Oil pump

CVT transmission element change (between oil changes)

Transmission · every 1,000 hours or every year

JCB's kit chart for the 8330-6 T4F lists the CVT transmission element in every 1,000-hour kit, more often than the oil (2,000 hours).

Part	Qty	Notes	Part number
CVT transmission element	1	Genuine JCB number from JCB's kit chart for the 8330-6 T4F	400/08064

Step-by-step

Park on firm level ground, lower implements, stop the engine, take the key out and chock the wheels.
Clean around the filter, remove it catching the oil and fit the new one with a new seal.
Run the engine briefly, stop, wait and check the transmission oil level.

Tools: Filter wrench, Drain tray, Rags

Engine air filter, main element

Engine · every 1,000 hours or every year

JCB's kit chart for the 8330-6 T4F lists the main air filter in the 1,000-hour and 2,000-hour kits. Change it sooner in dusty work.

Part	Qty	Notes	Part number
Main air filter element	1	Genuine JCB number from JCB's kit chart for the 8330-6 T4F	32/925752

Step-by-step

Stop the engine and take the key out. Never run it with the element out.
Open the air cleaner and take out the main element, leaving the safety element in place.
Wipe out the housing with a damp cloth. Do not blow dirt into the intake.
Fit the new element, close the housing and squeeze the dust valve clear.

Tools: Torch, Damp cloth

Front and rear differential oil change

Axles · every 1,000 hours or every year

Eurol's guide gives both differentials every 1,000 hours or 12 months, with a level check every 500 hours.

Part	Qty	Notes	Part number
Differential oil	1	Grade and spec: check your handbook. Front ≈20 L, rear ≈52 L	check your handbook

Step-by-step

Park on firm level ground, lower implements, stop the engine, take the key out and chock the wheels.
Drain the front differential, then the rear, into trays. Wear gloves.
Refit the drain plugs and fill each to its level plug.
Check for leaks after the next run.

Tools: Drain tray (60 L), Spanners or hex key for plugs, Oil pump

Hydraulic oil and filter change

Hydraulics · every 2,000 hours or every 2 years

Eurol's guide gives the hydraulic oil every 2,000 hours, with a level check every 10 hours. JCB's kit chart puts the tank element in every 500-hour kit, so the element is also changed on its own at 500 hours (next task). Change it with the oil every time.

Part	Qty	Notes	Part number
Hydraulic oil	1	Grade and spec: check your handbook. ≈92–114 L in the tank, ≈170 L in the system	check your handbook
Hydraulic tank element	1	Genuine JCB number from JCB's kit chart for the 8330-6 T4F	336/E1984

Step-by-step

Park on firm level ground, lower the linkage and implements, stop the engine, take the key out and chock the wheels.
Work the controls with the engine off to release trapped pressure. Oil at pressure can pierce skin.
Drain the tank into a large container. Stand to one side when you open the drain.
Fit a new tank element with a new seal.
Refit the plug and fill with the oil your handbook specifies.
Start the engine, work the hydraulics through their full travel, lower everything, stop and recheck the level.

Tools: Container (180 L), Spanners, Filter wrench, Pump or funnel, Gloves

Transmission oil and CVT filter change

Transmission · every 2,000 hours or every 2 years

Eurol's guide gives the transmission oil every 2,000 hours, with a level check every 10 hours. JCB's kit chart lists the CVT transmission element in every 1,000-hour kit, so the element is also changed on its own at 1,000 hours (next task). Change it with the oil every time.

Part	Qty	Notes	Part number
Transmission oil	1	Grade and spec: check your handbook. ≈75 L	check your handbook
CVT transmission element	1	Genuine JCB number from JCB's kit chart for the 8330-6 T4F	400/08064

Step-by-step

Park on firm level ground, lower implements, stop the engine, take the key out and chock the wheels.
Let the oil stand until warm, not scalding. Wear gloves.
Drain the transmission, fit the new element with a new seal and refit the plug.
Refill to the level your handbook shows. Do not overfill.
Run the engine briefly, stop, wait and recheck the level.

Tools: Drain tray (90 L), Spanners, Filter wrench, Pump or funnel, Gloves

Engine air filter, safety element

Engine · every 2,000 hours or every 2 years

JCB's kit chart for the 8330-6 T4F lists the safety air filter only in the 2,000-hour kit.

Part	Qty	Notes	Part number
Safety air filter element	1	Genuine JCB number from JCB's kit chart for the 8330-6 T4F	32/925753

Step-by-step

Stop the engine and take the key out.
Take out the main element, then the safety element, and cover the intake at once.
Fit the new safety element, then the main element, and close the housing.

Tools: Torch, Clean cloth

Cab air filters (recirculation and fresh air)

Cab · every 2,000 hours or every 2 years

JCB's kit chart for the 8330-6 T4F lists the air recirculation filter and the fresh air element only in the 2,000-hour kit. Change them sooner if the cab smells of dust or the air flow drops.

Part	Qty	Notes	Part number
Air recirculation filter	1	Genuine JCB number from JCB's kit chart for the 8330-6 T4F	334/S0776
Fresh air element	1	Genuine JCB number from JCB's kit chart for the 8330-6 T4F	334/U7071

Step-by-step

Stop the engine and take the key out.
Open the filter covers and remove the old filters. Wear a dust mask.
Fit the new filters the right way round and refit the covers.

Tools: Screwdriver, Dust mask

Coolant change

Cooling · every 2,000 hours or every 2 years

Eurol's guide gives the cooling system every 2,000 hours, with a level check every 10 hours.

Part	Qty	Notes	Part number
Coolant	1	Type and mix: check your handbook. ≈34 L	check your handbook

Step-by-step

Only work on a cold engine. Ease the cap off slowly to release pressure.
Drain the system and flush with clean water.
Refill with the correct mix, run to temperature, let it cool and top up.
Dispose of old coolant properly. It is poisonous to animals.

Tools: Drain tray (40 L), Hose, Coolant tester

Hydraulic brake fluid change (front and rear circuits)

Brakes · every 2,000 hours or every 2 years

Eurol's guide gives the hydraulic brake systems every 2,000 hours, with a level check every 10 hours.

Part	Qty	Notes	Part number
Brake fluid	1	Type: check your handbook. ≈0.75 L per circuit. Aztec Oils match: HYDRATEC DOT 4 BF	check your handbook

Step-by-step

Park on firm level ground, stop the engine, take the key out and chock the wheels firmly.
Bleed old fluid out at each calliper as the handbook shows, keeping the reservoirs topped up with fresh fluid.
Wipe up spills at once. Brake fluid strips paint.
Test the brakes at low speed in a safe place before road work.

Tools: Bleed tube and jar, Ring spanner for bleed screws, Rags

Oils, fluids and capacities

System	Oil or spec	Capacity
Engine	AGCO Power 84 LFVC (8330-6) / 84 AWF (8330-4) 8.4 L 6-cylinder turbo diesel with SCR (AdBlue), CVT transmission
Engine oil	Check your handbook. Eurol's page gives no grade or spec.	≈24 L (Eurol guide, 8330-4 and 8330-6)
Coolant	≈34 L. Type: check your handbook.
Valve clearances	Check your handbook. Not given in any source we could read.
Engine	Check your handbook	≈24 L
Transmission	Check your handbook	≈75 L
Hydraulic system	Check your handbook	≈92–114 L in the tank; ≈170 L in the whole system including the tank
Front differential	Check your handbook	≈20 L
Rear differential	Check your handbook	≈52 L
Hub reductions, front	Check your handbook	≈4 L each hub
Hub reductions, rear	Check your handbook	≈7 L each hub
Brakes (front and rear circuits)	Check your handbook	≈0.75 L each circuit
Cooling system	Check your handbook	≈34 L
AdBlue (SCR) tank	AdBlue (ISO 22241)	≈70 L (8330-6)

Specifications


Engine	AGCO Power 84 LFVC (8330-6), 8.4 L (engine code from Eurol)
Transmission	CVT stepless
Wheel nut torque	Check your handbook
Tyre pressures	Check your handbook

Known problems

8250, 8280 and 8310 are different

The earlier 8000 series tractors have Cummins or Sisu engines and other filters. Do not use the numbers here for them.

8330-4 filter numbers

The JCB numbers here come from the kit chart for the 8330-6 T4F. The 8330-4 has the 84 AWF engine and may use different filters: check by serial number.

AdBlue

The engine uses SCR. Use clean AdBlue only and keep the tank cap shut.

Fault codes: SAE J1939 engine codes: how to read SPN and FMI

Any modern electronic diesel engine

Code	Meaning	What to do
SPN 91	Accelerator pedal position	Power may be limited. Check the pedal plug.
SPN 94	Fuel delivery (lift pump / filter) pressure	Check fuel level and filters; look for air in the fuel.
SPN 97	Water in fuel	Drain the water separator.
SPN 100	Engine oil pressure	FMI 1 means stop at once. Check the oil level.
SPN 102	Boost (turbo) pressure	Check air filter and intake for leaks.
SPN 105	Intake manifold (charge air) temperature	Clean the cooler and intake.
SPN 110	Engine coolant temperature	FMI 0 means overheating: stop and let it cool.
SPN 157	Common rail fuel pressure	Check fuel filters. Call your dealer.
SPN 168	Battery voltage	Check the battery, terminals and alternator.
SPN 174	Fuel temperature	Call your dealer if high or erratic.
SPN 190	Engine speed	Check the sensor plug if the rev counter misbehaves.
SPN 1136	Engine controller temperature	Let it cool; check engine bay ventilation.
SPN 3216	SCR catalyst conversion efficiency (exhaust AdBlue system)	Check DEF quality and level. Call your dealer.
SPN 3361	DEF (AdBlue) dosing unit	Check the DEF tank level; call your dealer.
SPN 4094	DEF (AdBlue) tank level	Fill the DEF tank. Power will be cut if it runs out.
FMI 0	Reading valid but well above normal (most severe)	Treat as a real problem: stop and check, for example temperature or pressure.
FMI 1	Reading valid but well below normal (most severe)	Treat as a real problem: for oil pressure, stop the engine at once.
FMI 2	Erratic, intermittent or wrong data	Check the plug and wiring at the sensor.
FMI 3	Voltage above normal or wiring shorted to supply	Sensor or wiring fault. Check the plug.
FMI 4	Voltage below normal or wiring shorted to ground	Sensor or wiring fault. Check the plug.
FMI 5	Current below normal or open circuit	A wire has come off or a part has failed. Check the plug.
FMI 6	Current above normal or grounded circuit	A short to ground. Check wiring for chafing.
FMI 7	Mechanical part not responding or out of adjustment	Not electrical: check the part moves freely.
FMI 8	Abnormal frequency or pulse width	Signal fault. Check the sensor and wiring.
FMI 9	Abnormal update rate (message arriving too slowly or too fast)	Often a network fault. Switch off and restart.
FMI 10	Abnormal rate of change	Reading changing too fast. Check the sensor.
FMI 11	Failure detected, exact cause not known	Call your dealer.
FMI 12	Controller or device faulty	Usually needs a replacement part: call your dealer.
FMI 13	Out of calibration	Call your dealer to recalibrate.
FMI 14	Special instructions: the maker has its own steps	Call your dealer.
FMI 15 / 16	Reading above normal: least severe / moderately severe	Warning stage. Ease off and check, for example coolant.
FMI 17 / 18	Reading below normal: least severe / moderately severe	Warning stage. Check the system named.
FMI 19	Data received over the network carries an error flag	Check the sensor plugged into the other controller.
FMI 20 / 21	Data drifted high / drifted low compared with other readings	Sensor may be failing. Call your dealer.
FMI 31	The condition named by the SPN exists (no more detail), or not available	Read the SPN name for what it means.

Fault codes: AGCO Power / Sisu engine codes (EEM3 controller)

Engine controller (Sisu / AGCO Power 6.6 and 8.4 L)

Code	Meaning	What to do
98 / SPN 100 FMI 18	Engine oil pressure low (warning)	Check the oil level. Ease off and call your dealer if the level is right.
99 / SPN 100 FMI 1	Engine oil pressure very low (alarm)	Stop the engine at once. Check the oil level. If it is right, do not run it: call your dealer.
92 / SPN 100 FMI 16	Engine oil pressure above normal	Probably cold thick oil or a faulty sensor. Let the engine warm gently; call your dealer if it persists.
102 / SPN 102 FMI 18	Boost pressure low	Check the air filter, intake pipes and clips for leaks. Call your dealer if it persists.
103 / SPN 102 FMI 16	Boost pressure above normal	Call your dealer.
112 / SPN 110 FMI 16	Coolant temperature high (warning)	Ease off and let it cool. Check coolant level when cold and clean the radiator.
113 / SPN 110 FMI 0	Coolant temperature very high (alarm)	Stop and idle, then switch off. Check coolant (cold only) and radiator. Do not carry on.
116 / SPN 105 FMI 16	Intake air temperature above normal	Clean the intercooler/radiator fins and check the air intake for blockage.
94 / SPN 190 FMI 16	Engine overspeed (over 3000 rpm)	Switch off, then check for a runaway or driving downhill in too low a gear. Call your dealer.
276 / SPN 102 FMI 31	Intake pressure drops too much while cranking	Check the air filter and intake. Call your dealer.
110 / SPN 110 FMI 4	Coolant temperature sensor reading very low (sensor fault)	Temperature reading unreliable. Call your dealer.
111 / SPN 110 FMI 3	Coolant temperature sensor reading very high (sensor fault)	Temperature reading unreliable. Call your dealer.
251 / 252 (SPN 174)	Fuel temperature sensor fault (low / high)	Call your dealer.
253 / SPN 174 FMI 16	Fuel temperature above normal (over 90 C)	Ease off the load. Check fuel cooling and fuel level. Call your dealer.
114 / 115 (SPN 105)	Intake manifold temperature sensor fault (low / high)	Check the plug. Call your dealer.
96 / 97 (SPN 100)	Oil pressure sensor fault (low / high)	Check oil level; if right and no oil warning, call your dealer.
100 / 101 (SPN 102)	Boost pressure sensor fault (low / high)	Check the plug. Call your dealer.
263 / 264 (SPN 157)	Common rail pressure sensor fault (low / high)	Poor running or stalling possible. Call your dealer.
291 / 292 (SPN 94)	Fuel filter pressure sensor fault (low / high)	Check the fuel filter. Call your dealer.
445 / SPN 94 FMI 16	Fuel filter pressure above normal (blocked filter)	Change the fuel filters. Check the fuel is clean.
446 / SPN 94 FMI 18	Fuel filter pressure below normal (air or starved fuel)	Check fuel level and for air leaks in the suction line. Change filters if due.
121 / SPN 97 FMI 31	Water in the fuel (optional sensor)	Drain the water separator and check the fuel.
269 / SPN 9090	Engine speed signal evaluation error	Hard starting or stalling possible. Call your dealer.
271 to 273 (SPN 9070 to 9072)	Crankshaft speed sensor faults (signal, noise, wired the wrong way round)	Call your dealer.
281 to 284 (SPN 9080 to 9083)	Camshaft speed sensor faults (signal, wired the wrong way round, no signal)	Call your dealer.
80 / 81 (SPN 91)	Throttle pedal sensor 1 fault (low / high)	Power may be limited. Check the pedal plug; call your dealer.
82 to 85 (SPN 9140, 9141)	Throttle sensor 2 and 3 faults (low or high)	Power may be limited. Call your dealer.
265 / SPN 157 FMI 16	Rail pressure above normal	Call your dealer.
381 / SPN 157 FMI 1	Rail pressure too low	Check fuel level and filters. Call your dealer.
382 / SPN 157 FMI 0	Rail pressure too high	Stop and call your dealer.
383 to 387 (SPN 9150)	Rail pressure deviation or fuel leakage detected	Look for fuel leaks around the engine; stop if you find one. Call your dealer.
321 to 365 (SPN 9132 to 9136)	Injector solenoid valve 2 to 6: short circuit, open circuit or current fault	Rough running or misfire. Stop and call your dealer.
421 to 424 (SPN 9174)	Fuel pump metering valve (MPROP): short to ground / short to supply / open circuit / overheated	Power loss or stalling possible. Call your dealer.
18 / SPN 168 FMI 0	Battery voltage very high (over 36 V)	Stop. Possible alternator regulator fault or wrong jump lead connection. Call your dealer.
17 / SPN 168 FMI 1	Battery voltage very low (under 6.5 V)	Check the battery and terminals; charge or replace.
371 / SPN 168 FMI 18	Battery voltage below normal (under 7.8 V)	Check the battery and terminals; charge or replace.
372 / SPN 168 FMI 16	Battery voltage above normal	Check the alternator and charging.
214 / SPN 9023	5 V sensor supply 3 too low or too high	Several sensors may misread. Call your dealer.
248 / 249 (SPN 9024)	Water-in-fuel sensor supply voltage too low / too high	Check the sensor plug. Call your dealer.
20 / SPN 1136 FMI 16	Engine controller temperature above normal (over 115 C)	Let the machine cool. Check engine bay ventilation. Call your dealer if it repeats.
21 / 22 (SPN 1136)	Engine controller temperature sensor fault (low / high)	Call your dealer.
471 to 473 (SPN 9010)	Barometric (ambient) pressure sensor fault or above normal	Call your dealer.
109 / SPN 110 FMI 2	Coolant temperature: no signal	Check the sensor plug. Call your dealer.
117 / SPN 105 FMI 2	Intake manifold temperature: no signal	Check the sensor plug. Call your dealer.
93 / SPN 100 FMI 2	Oil pressure: no signal	Check the oil level and the sensor plug. Call your dealer.
104 / SPN 102 FMI 2	Boost pressure: no signal	Check the sensor plug. Call your dealer.
266 / SPN 157 FMI 2	Rail pressure: no signal	Call your dealer.
19 / SPN 168 FMI 2	Battery voltage: no signal	Check battery terminals and fuses. Call your dealer.
141 / SPN 9006	Vehicle CAN network off	Switch off and restart. Call your dealer if it returns.
146 / 147 (SPN 898)	Requested speed from the CAN network out of range (under 500 / over 3000 rpm)	Call your dealer.
186 / SPN 9306	PTO input error	Check the PTO control plug. Call your dealer.
221 to 235 (SPN 9025 to 9034)	Controller self-test and shut-off path faults	Call your dealer.
451 to 457 (SPN 9230 to 9235)	Engine ID module or specification mismatch	Call your dealer.

Repair guides

Fastrac 4000 and 8000: engine fuel filter and AdBlue warnings (Moderate, 45 minutes): Hard starting, power loss, fuel filter due, or AdBlue warnings.
CVT or hydraulic filter service (Fastrac 4000 and 8000) (Specialist, 1–2 hours): Sluggish or jerky CVT response, weak hydraulics, hydraulic or transmission filter warning.

The full step-by-step guides are in Farmyard Workshop once you add your tractor.

Parts list with genuine part numbers

JCB Fastrac 8330 (8000 series) - maker filter/service sheets and parts lists already cited on the site entry; serial splits are in the row notes

Cab

Part	Part number	Qty	Notes
Air recirculation filter	334/S0776	1	Genuine JCB number from JCB's kit chart for the 8330-6 T4F
Fresh air element	334/U7071	1	Genuine JCB number from JCB's kit chart for the 8330-6 T4F

Engine service

Part	Part number	Qty	Notes
Engine oil filter	336/E2954	1	Genuine JCB number from JCB's kit chart for the 8330-6 T4F. The 8330-4 (84 AWF engine) may use another filter: check by serial number
Main air filter element	32/925752	1	Genuine JCB number from JCB's kit chart for the 8330-6 T4F
Safety air filter element	32/925753	1	Genuine JCB number from JCB's kit chart for the 8330-6 T4F

Fuel

Part	Part number	Qty	Notes
Engine fuel filter	400/H9310	1	Genuine JCB number from JCB's kit chart for the 8330-6 T4F. A reseller also lists 320/07416 for the Fastrac 8330 and 8250: confirm by serial number

Transmission and hydraulics

Part	Part number	Qty	Notes
Hydraulic tank element	336/E1984	1	Genuine JCB number from JCB's kit chart for the 8330-6 T4F
CVT transmission element	400/08064	1	Genuine JCB number from JCB's kit chart for the 8330-6 T4F

Sources

Open Farmyard Workshop