John Deere 4044R / 4052R / 4066R service schedule

John Deere 4 series compacts · 4R Final Tier 4, serial L00001 on (Deere sheets Mar 2021 and Mar 2022); years: check your handbook

Every maker's service job for the John Deere 4044R / 4052R / 4066R, 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 4044R / 4052R / 4066R for free

Versions: Open operator station; Cab; Four-wheel drive (MFWD)

Service intervals

Job	When
Cab fresh-air filter	every 50 hours
Cab recirculation filters	every 50 hours
Engine oil and filter change	every 400 hours or every year
Fuel filters (primary and final)	every 400 hours or every year
Hydraulic oil filter	every 400 hours
Transmission and hydraulic filters	every 400 hours
Engine air filter, primary (outer) element	every 600 hours
Engine air filter, secondary (safety) element	every 600 hours
Transmission and hydraulic oil and filter change	when needed
Diesel particulate filter (DPF): dealer service	when needed
Coolant replacement	when needed

Service jobs and parts

Cab fresh-air filter

Cab · every 50 hours

John Deere says clean or replace the cab fresh-air filter every 50 hours and as required.

Part	Qty	Notes	Part number
Cab fresh-air filter	1		MIU10010

Step-by-step

Stop the engine and take the key out.
Open the filter covers and remove the elements, wearing a dust mask.
Fit new filters the right way round and check the covers seal.

Tools: Screwdriver, Dust mask

Cab recirculation filters

Cab · every 50 hours

John Deere says clean or replace the two recirculation filters every 50 hours and as required.

Part	Qty	Notes	Part number
Cab recirculation filter	2		MIU10011

Step-by-step

Stop the engine and take the key out.
Open the filter covers and remove the elements, wearing a dust mask.
Fit new filters the right way round and check the covers seal.

Tools: Screwdriver, Dust mask

Engine oil and filter change

Engine · every 400 hours or every year

John Deere says replace the engine oil filter every 400 hours or once a year, whichever comes first. Change the oil with it.

Part	Qty	Notes	Part number
Engine oil	1	15W-40 (10W-30, 5W-40 or 0W-40 in colder weather). Plus-50 II, ≈5.3 L with filter. Aztec Oils match: EMPROTEC EHPD 15W-40	check your handbook
Engine oil filter	1		M806419

Step-by-step

Warm the engine, park on level ground, lower the linkage, loader and any implement, stop the engine, take the key out and chock the wheels.
Let it stand a few minutes. Hot oil burns, so wear gloves.
Remove the sump plug and let the oil drain fully.
Remove the filter, check the old seal came off, and wipe the filter head clean.
Oil the new filter seal and fit it hand-tight as marked on the filter.
Refit the plug and fill with Plus-50 II to the full mark.
Run the engine for a minute, check for leaks, stop it and recheck the level.

Tools: Drain tray (10 L), Filter wrench, Spanner for sump plug, Funnel, Gloves, Rags

Fuel filters (primary and final)

Fuel · every 400 hours or every year

John Deere says replace both fuel filters every 400 hours or once a year, whichever comes first.

Part	Qty	Notes	Part number
Primary fuel filter	1		MIU802421
Final fuel filter	1		MIU803127

Step-by-step

Stop the engine, take the key out and chock the wheels. Keep naked flames away.
Clean around both filters before opening anything.
Drain any water from the primary filter into a container.
Remove the old filters and fit the new ones with clean seals.
Prime the system as your handbook describes. Never crack open the high-pressure pipes on a common-rail engine.
Start the engine and check for leaks.

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

Hydraulic oil filter

Hydraulics · every 400 hours

John Deere says replace the hydraulic oil filter every 400 hours. The sheet gives no oil change interval, so this is a filter-only task.

Part	Qty	Notes	Part number
Hydraulic oil filter	1		LVA10419

Step-by-step

Check your transmission and pump size, then order the right filters.
Park on level ground, lower the linkage, loader and implements fully, stop the engine, take the key out and chock the wheels.
With the engine off, work the spool and linkage controls to relieve hydraulic pressure.
Let hot oil cool before starting; it burns.
Clean around each filter, remove it and catch the oil. Fit the new filters with oiled seals.
Run the engine briefly, stop, check for leaks and top up with Hy-Gard.

Tools: Drain tray, Filter wrench, Gloves, Rags

Transmission and hydraulic filters

Transmission · every 400 hours

John Deere's wording is unclear: it says replace the transmission oil filter after every 400 hours, and change every 1,200 hours or 3 years. The shorter 400-hour filter figure is used here; ask a dealer which one applies to the oil.

Part	Qty	Notes	Part number
Transmission oil filter	1		RE45864

Step-by-step

Check your transmission and pump size, then order the right filters.
Park on level ground, lower the linkage, loader and implements fully, stop the engine, take the key out and chock the wheels.
With the engine off, work the spool and linkage controls to relieve hydraulic pressure.
Let hot oil cool before starting; it burns.
Clean around each filter, remove it and catch the oil. Fit the new filters with oiled seals.
Run the engine briefly, stop, check for leaks and top up with Hy-Gard.

Tools: Drain tray, Filter wrench, Gloves, Rags

Engine air filter, primary (outer) element

Engine · every 600 hours

John Deere says check the primary air filter after every 600 hours and replace as needed.

Part	Qty	Notes	Part number
Primary air filter	1		RE68048

Step-by-step

Stop the engine and take the key out. Never run the engine with the filter out.
Open the housing and take out the primary element. Leave the secondary element in place.
Wipe the housing out with a damp cloth. Do not blow dirt down the intake.
Fit the new element, check it seats evenly and close the housing.

Tools: Torch, Damp cloth

Engine air filter, secondary (safety) element

Engine · every 600 hours

John Deere says check the secondary air filter after every 600 hours and replace as needed.

Part	Qty	Notes	Part number
Secondary air filter	1		RE68049

Step-by-step

Stop the engine and take the key out.
Remove the primary element, then the secondary element, without letting dirt fall into the intake.
Fit the new secondary element straight away, then refit or renew the primary.
Close the housing and check the clips.

Tools: Torch, Damp cloth

Transmission and hydraulic oil and filter change

Transmission · when needed

John Deere's sheet gives the oil quantity but the interval wording is unclear (1,200 hours or 3 years), so check your handbook. The filters are always changed with the oil.

Part	Qty	Notes	Part number
Hy-Gard oil	1	UTTO tractor transmission oil. ≈47.3 L. Aztec Oils match: AGRITEC UTTO	check your handbook
Transmission oil filter	1		RE45864
Hydraulic oil filter	1		LVA10419

Step-by-step

Park on level ground, lower the linkage, loader and implements fully, stop the engine, take the key out and chock the wheels.
With the engine off, work the spool and linkage controls to relieve hydraulic pressure.
Let hot oil cool for a while, then drain it from the drain plugs.
Refit the plugs and fit the new filters.
Fill with Hy-Gard, run the engine, work the hydraulics through their full travel, lower everything and recheck the level.

Tools: Large drain tray (200 L), Spanners, Filter wrench, Pump or funnel, Gloves

Diesel particulate filter (DPF): dealer service

Exhaust · when needed

The 4R has a DPF. John Deere says see your dealer or qualified service provider; the sheet gives no hour interval.

Part	Qty	Notes	Part number
Diesel particulate filter	1	4044R, 4052R: MIU803276. 4052R, 4066R: MIU802216. Dealer service	MIU802216

Step-by-step

Watch the display for exhaust filter warnings and let regenerations finish.
If the warning stays on, book DPF replacement or cleaning with a John Deere dealer within 250 hours.
Never work near the exhaust until it has cooled; it runs very hot, especially after a regeneration.

Tools: Dealer service tool

Coolant replacement

Cooling · when needed

Cool-Gard II protects against liner pitting, corrosion and frost but wears out. John Deere's sheet gives the quantity but not the interval, so check your handbook and test the coolant every year.

Part	Qty	Notes	Part number
Cool-Gard II coolant	1	≈6.4 L (open station) or ≈7.6 L (cab)	check your handbook

Step-by-step

Only work on a cold engine; the cooling system is under pressure when hot.
Drain the system from the radiator and engine drain points into a clean tray.
Flush with clean water, refit the drains and refill with the correct Cool-Gard II mix.
Run the engine up to temperature, let it cool and top up the level.

Tools: Drain tray, Hose, Coolant test strips

Oils, fluids and capacities

System	Oil or spec	Capacity
Engine	John Deere 4-cylinder turbo diesel, Final Tier 4 with DPF
Engine oil	John Deere Plus-50 II (viscosity for your climate: check your handbook)	≈5.3 L with filter
Coolant	John Deere Cool-Gard II, ≈6.4 L (open station), ≈7.6 L (cab)
Valve clearances	Check your handbook. Not in John Deere's filter sheet.
Transmission and hydraulics (shared)	John Deere Hy-Gard	≈47.3 L
Front axle	John Deere Hy-Gard	≈5 L
Fuel tank	Diesel	≈56.9 L (open station), ≈55.6 L (cab)

Specifications


Models	4044R, 4052R, 4066R
Tyre pressures	Check your handbook

Known problems

Transmission filter wording

Deere's 4R sheets say 'replace after every 400 hours, change every 1,200 hours or 3 years'. It is not clear which applies to the filter and which to the oil. Check your handbook.

DPF depends on model

The 4052R is listed against both DPF numbers. Check your serial number.

Repair guides

Hard starting or stalling: changing the fuel filters and priming (3R, 4R, 5G) (Moderate, 45–60 minutes): Engine cranks but will not start after running dry or a filter change, stalls or hunts, water-in-fuel warning.
Exhaust filter or DEF warning, reduced power: owner checks (3R, 4R, 5G) (Specialist, 30 minutes of checks; repair by a dealer): Exhaust or DPF warning light, reduced power, frequent regenerations, or (5G) a DEF warning.
Weak loader or linkage, slow hydraulics or transmission noise (3R, 4R, 5G) (Moderate, 1 hour): Lift or loader is slow, hydraulics are noisy, or the filter warning is on.
Loss of power or black smoke: air filters (3R, 4R, 5G) (Easy, 30 minutes): Black smoke, lack of power or a restriction light.

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

Parts list with genuine part numbers

John Deere 4044R / 4052R / 4066R - 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
Cab fresh-air filter	MIU10010	1
Cab recirculation filter	MIU10011	2

Engine service

Part	Part number	Qty
Engine oil filter	M806419	1
Primary air filter	RE68048	1
Secondary air filter	RE68049	1

Fuel

Part	Part number	Qty	Notes
Primary fuel filter	MIU802421	1
Final fuel filter	MIU803127	1
Diesel particulate filter	MIU802216	1	4044R, 4052R: MIU803276. 4052R, 4066R: MIU802216. Dealer service

Transmission and hydraulics

Part	Part number	Qty	Notes
Hydraulic oil filter	LVA10419	1
Transmission oil filter	RE45864	1

Sources

Open Farmyard Workshop