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MTU 20V 4000 G83 Engine

Name: MTU 20V 4000 G83 Engine
Brand: MTU

The MTU 20V 4000 G83 is a 95.4 L exhaust turbocharging (etc) with charge-air cooling (cac) engine rated at 1800 rpm. It powers generator sets from Kohler and MTU, including the 2800REOZD, 20 V 4000 G83, DP 2600 D6S RW and DS 2810 D6S RW. It holds 390 L (103.0 gal) of oil and 205 L (54.2 gal) of coolant.

Also known as: MTU 20V 4000 G83

Part of the MTU 20V4000 engine family — 59 variants share parts & fitment.

95.4 L

Displacement

1800 rpm

Rated speed

390.0 L

Oil capacity

On this pageSpecs Generator sets Maintenance FAQ Service intervals Torque & specs Fluids Fault codes Procedures Wiring

Engine specifications

Oil capacity	390.0 L
Coolant capacity	205.0 L
Displacement	95.4 L
Aspiration	Exhaust turbocharging (ETC) with charge-air cooling (CAC)
Rated speed	1800 rpm

Generator sets powered by this engine

Shared across brands: Kohler, MTU

Kohler 2800REOZD MTU 20 V 4000 G83MTU DP 2600 D6S RWMTU DS 2810 D6S RW

How to read your MTU engine serial & model number →

Maintenance schedule

Item	Spec	Capacity	Part #
Fuel filter	Secondary		—
Oil filter	Spin-On		—
Oil		390.0 L	—

Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.

Service intervals

Item	Action	Hours	Months	Notes
Centrifugal oil filter	Clean	500 hr	24 mo	Check oil residue layer thickness, clean, replace filter sleeve
Fuel filter	Replace	1000 hr	24 mo	Task W1001; limit 2 years
Belt drive	Check	1600 hr	24 mo	Check drive belt condition and tension, replace/adjust if necessary; Task W1003
Valve gear	Check	1500 hr		Check valve clearance; Task W1002
Cylinder chambers	Inspect	5000 hr	48 mo	Endoscope cylinder chambers
Fuel injectors	Replace	5000 hr
Exhaust turbocharger	Other	6000 hr		3D application group: overhaul exhaust turbochargers
Component maintenance	Other	10000 hr		Drain coolant and flush coolant circuits; clean air line; clean intercooler and check leak-tightness; replace HP fuel sensor; check engine coolant thermostat and replace thermostat element; check charge-air coolant thermostat and replace thermostat element; check centrifugal oil filter for wear; overhaul starter; overhaul charge-air coolant pump; replace sealing materials on all dismantled components; overhaul engine coolant pump; check vibration dampers; overhaul engine coolant preheater
Crankcase breather	Replace	10000 hr		Replace filter or filter element
Cylinder head	Other	10000 hr		Overhaul cylinder heads
Fuel delivery pump	Replace	10000 hr
Air filter	Replace	3000 hr	36 mo	Task W1005; limit 3 years
Engine oil filter	Replace		24 mo	Replace when changing engine oil or when 2-year interval reached; Task W1008
Engine operation	Test		1 mo	Perform test run, min. duration until steady-state temperature reached, not below 1/3 load (monthly)
Extended component maintenance	Other	10000 hr	216 mo	Limit 18 years; complete engine disassembly; Task W3000

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Service specifications

Type	Item	Value	Unit	Condition
Clearance	Centrifugal oil filter max oil residue layer thickness	45	mm
Clearance	Valve clearance adjustment deviation limit	0.1	mm	cold engine
Clearance	Valve clearance deviation requiring adjustment	0.1	mm	exceeds reference value
Other	10 in. weld flange bolt circle diameter B	361.95	mm (14.25 in.)
Other	10 in. weld flange outside diameter C	406.4	mm (16.0 in.)
Other	10 in. weld flange quantity of bolts / bolt hole diameter D	12, 25.40	mm (1.00 in.)
Other	12 in. weld flange bolt circle diameter B	431.80	mm (17.00 in.)
Other	12 in. weld flange outside diameter C	482.6	mm (19.0 in.)
Other	12 in. weld flange quantity of bolts / bolt hole diameter D	12, 25.40	mm (1.00 in.)
Other	14 in. weld flange bolt circle diameter B	476.25	mm (18.75 in.)
Other	14 in. weld flange outside diameter C	533.4	mm (21.0 in.)
Other	14 in. weld flange quantity of bolts / bolt hole diameter D	12, 28.58	mm (1.13 in.)
Other	16 in. weld flange bolt circle diameter B	539.75	mm (21.25 in.)
Other	16 in. weld flange outside diameter C	596.9	mm (23.5 in.)
Other	16 in. weld flange quantity of bolts / bolt hole diameter D	16, 28.58	mm (1.13 in.)
Other	18 in. weld flange bolt circle diameter B	577.85	mm (22.75 in.)
Other	18 in. weld flange outside diameter C	635.0	mm (25.0 in.)
Other	18 in. weld flange quantity of bolts / bolt hole diameter D	16, 31.75	mm (1.25 in.)
Other	20 in. weld flange bolt circle diameter B	635.00	mm (25.00 in.)
Other	20 in. weld flange outside diameter C	698.5	mm (27.5 in.)
Other	20 in. weld flange quantity of bolts / bolt hole diameter D	20, 31.75	mm (1.25 in.)
Other	5 in. weld flange bolt circle diameter B	215.90	mm (8.50 in.)
Other	5 in. weld flange outside diameter C	241.30	mm (9.50 in.)
Other	5 in. weld flange quantity of bolts / bolt hole diameter D	8, 22.23	mm (0.88 in.)
Other	6 in. weld flange bolt circle diameter B	254.0	mm (10.0 in.)
Other	6 in. weld flange outside diameter C	279.4	mm (11.0 in.)
Other	6 in. weld flange quantity of bolts / bolt hole diameter D	8, 22.23	mm (0.88 in.)
Other	8 in. weld flange bolt circle diameter B	298.45	mm (11.75 in.)
Other	8 in. weld flange outside diameter C	342.9	mm (13.5 in.)
Other	8 in. weld flange quantity of bolts / bolt hole diameter D	8, 22.23	mm (0.88 in.)
Other	Coolant antifreeze content, max.	50	%
Other	Coolant pump permissible coolant discharge at relief bore	up to 10	drops/hour
Other	Coolant pump permissible oil discharge at relief bore	up to 5	drops/hour
Other	Engine weight, dry	9640	kg	basic engine configuration
Other	Main engine height (C)	2490	mm	approx.
Other	Main engine length (A)	3520	mm	approx.
Other	Main engine width (B)	1620	mm	approx.
Other	Permissible coolant discharge, engine coolant pump relief bore	10	drops/hour
Other	Permissible oil discharge, engine coolant pump relief bore	5	drops/hour
Other	Site altitude above sea level reference	100	m
Other	Weld flange angle A (10, 12, 14 in. nominal pipe size)	30	deg.
Other	Weld flange angle A (16, 18, 20 in. nominal pipe size)	22.5	deg.
Other	Weld flange angle A (5, 6, 8 in. nominal pipe size)	45	deg.
Pressure	Barometric pressure reference	1000	mbar
Pressure	Charge air pressure before cylinder, BL	2.5 to 3.6	bar abs	varies by model
Pressure	Final compression pressure	24 to 28	bar	at 120 rpm
Pressure	Final compression pressure at 120 rpm	24 to 28	bar	at 120 rpm
Pressure	Fuel prefilter differential pressure (flush threshold)	0.3	bar	engine at full load / rated power
Pressure	Fuel prefilter differential pressure flush limit	0.3	bar	flush filter element if differential pressure >=
Pressure	Fuel pressure at engine inlet connection, max during starting	1.5	bar
Pressure	Fuel pressure at engine inlet connection, min during starting	-0.1	bar
Pressure	Lube-oil operating pressure before engine, from	4.5 to 5.0	bar	varies by model
Pressure	Lube-oil operating pressure before engine, to	7.3 to 7.8	bar	varies by model
Speed	Firing speed	80 to 120	rpm
Speed	Firing speed, from	80	rpm
Speed	Firing speed, to	120	rpm
Temperature	Cold start capability air temperature (w/o start aid, w/o preheating)	10	°C	case A
Temperature	Cold start capability air temperature (without start aid/preheating)	10	°C
Temperature	Coolant preheating temperature (min.)	32	°C
Temperature	Coolant temperature (design value)	100	°C	at engine outlet to cooling equipment

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Recommended fluids

Fluid	Grade	Standard	Capacity	Notes
Coolant		MTU Fluids and Lubricants Specifications A001061/..	205.0 liters	Engine coolant capacity, engine side (without cooling equipment)
Engine oil		MTU Fluids and Lubricants Specifications A001061/..	390.0 liters	Total engine oil capacity at initial filling (standard oil system); oil pan capacity at dipstick mark min 245 L, max 340 L
Fuel	Diesel fuel	MTU Fluids and Lubricants Specifications A001061/..		Fuel pressure at engine inlet connection min -0.1 bar, max 1.5 bar during engine starting

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Fault codes

Code	Name	Meaning	Severity	Action
003	HI T-Fuel	Preliminary warning: Fuel temperature too high.	Warning	Contact Service.
004	SS T-Fuel	Main warning: Fuel temperature too high; Engine stop.	Shutdown	Contact Service.
005	HI T-Charge Air	Preliminary warning: Charge-air temperature too high.	Warning	Reduce power; check intercooler.
006	SS T-Charge Air	Main warning: Charge-air temperature too high; Engine stop.	Shutdown	Reduce power; check intercooler.
009	HI T-Coolant Intercooler	Preliminary warning: Coolant pressure in intercooler too low.	Warning	Reduce power.
010	SS T-Coolant Intercooler	Main warning: Charge-air coolant temperature too high; Engine stop.	Shutdown	Reduce power.
015	LO P-Lube Oil	Preliminary warning: Lube oil pressure too low.	Warning	Check oil level, top up as necessary.
016	SS P-Lube Oil	Main warning: Lube oil pressure too low; Engine will be shut down.	Shutdown	Check oil level; attempt to restart engine.
019	HI T-Exhaust A	Preliminary warning: Exhaust temperature (A-side) too high.	Warning	Check cabling; contact Service.
020	SS T-Exhaust A	Main warning: Exhaust temperature (A-side) too high; Engine stop.	Shutdown	Check cabling; contact Service.
021	HI T-Exhaust B	Preliminary warning: Exhaust temperature (B-side) too high.	Warning	Check cabling; contact Service.
022	SS T-Exhaust B	Main warning: Exhaust temperature (B-side) too high; Engine stop.	Shutdown	Check cabling; contact Service.
023	LO Coolant Level	Coolant level too low (limit value 1).	Warning	Check coolant level in expansion tank.
024	SS Coolant Level	Coolant level too low (limit value 2).	Shutdown	Check coolant level in expansion tank.
025	HI P-Diff. Lube Oil	Preliminary warning: Oil filter differential pressure too high.	Warning	Replace oil filter.
026	HI P-Diff. Lube Oil Limit 2	Preliminary warning: Oil filter differential pressure too high.	Warning	Replace oil filter.
027	HI Leak Fuel Level	Preliminary warning: Leak-off fuel level too high.	Warning	Check fuel system; contact Service.
029	HI ETC 2 idle speed	Idle speed of ETC 2 too high.	Warning	Contact Service.
030	SS Engine Speed	Reduced fuel injection	Shutdown	Acknowledge alarm; attempt to restart engine.
031	HI ETC 1 overspeed	Speed of primary turbocharger too high	Warning	Contact Service.
032	SS ETC 1 overspeed	Speed of primary turbocharger too high.	Shutdown	Automatic power reduction; check air filters.
034	SS P-Diff-Fuel	Fuel filter differential pressure too high	Shutdown	Replace fuel filter.
036	HI ETC 2 overspeed	Preliminary warning: Speed of secondary turbocharger too high.	Warning	Reduce power; contact Service.
037	SS ETC 2 overspeed	Speed of secondary turbocharger too high; fuel limitation to a fixed value.	Shutdown	Reduce power; contact Service.
038	AL ETC Synchro Fault	Synchronization error between ETCs 1 and 2.	Warning	Reduce power; contact Service.
039	AL ETC 2 cut-in failure	ETC2 failed to cut in.	Warning	Reduce power; contact Service.
044	L1 Coolant Level Intercooler	Intercooler coolant level too low (limit value 1).	Warning	Check coolant level.
051	HI T-Lube Oil	Preliminary warning: Lube oil temperature too high.	Warning	Reduce power.
052	SS T-Lube Oil	Main warning: Lube oil temperature too high; Engine stop.	Shutdown	Reduce power; check engine oil level.
057	LO P-Coolant	Preliminary warning: Coolant pressure too low.	Warning	Check coolant circuit.
058	SS P-Coolant	Main warning: Coolant pressure too low; Engine stop or reduced fuel injection.	Shutdown	Automatic engine shutdown; check coolant level.
063	HI P-Crankcase	Preliminary warning: Crankcase pressure too high.	Warning	Reduce power; replace oil separator element.
064	SS P-Crankcase	Main warning: Crankcase pressure too high; Engine stop.	Shutdown	Replace oil separator element; contact Service.
065	LO P-Fuel	Preliminary warning: Fuel supply pressure too low.	Warning	Check fuel lines for leaks; clean/flush fuel prefilter; replace fuel filter.
066	SS P-Fuel	Main warning: Fuel supply pressure too low; Engine stop.	Shutdown	Check fuel lines; clean fuel prefilter; replace prefilter element and fuel filter.
067	HI T-Coolant	Preliminary warning: Coolant temperature too high.	Warning	Reduce power.
068	SS T-Coolant	Main warning: Coolant temperature too high; Engine stop.	Shutdown	Allow engine to cool; check coolant cooler; restart engine; contact Service.
081	AL Rail Leakage	Pressure gradient in rail too low during starting or too high during stopping; HP system leaky, air in system.	Warning	Contact Service.
082	HI P-Fuel (Common Rail)	Rail pressure > set-point value; DBR reduction, start of injection moved to late; suction restrictor jamming or wiring of suction restrictor faulty	Warning	Contact Service.
083	LO P-Fuel (Common Rail)	Rail pressure > set-point value; DBR reduction, suction restrictor faulty or leak in HP fuel system	Warning	Contact Service.
085	HI T-Recirculation	Preliminary warning: Recirculation temperature too high.	Warning	Reduce power.
086	HI T-Recirculation	Main warning: Recirculation temperature too high.	Shutdown	Reduce power.
089	SS Engine Speed too Low	Engine speed too low.	Warning	Check for additional messages.
090	SS Starter Speed Not Reached	Idling speed was not attained.	Shutdown	Contact Service.
091	SS Release Speed Not Reached	Runup speed was not attained.	Shutdown	Contact Service.
092	SS Starter Speed Not Reached	Starter speed was not attained; termination of starting sequence.	Shutdown	Contact Service.
093	SS T-Preheat	Preheating temperature too low; engine start interlock active.	Shutdown	Check preheater.
094	LO T-Preheat	Preheating temperature too low; coolant temperature too low for engine start.	Warning	Check preheater.
095	AL Prelubrication Fault	Oil priming failure.	Warning	Check oil priming system.
102	AL Consumption Meter Faulty	Consumption meter faulty.	Warning	Contact Service.
104	AL Eng Hours Counter Defect	Hourmeter faulty.	Warning	Contact Service.
118	LO ECU Supply Voltage	Supply voltage too low	Warning	Check ECU supply voltage; contact Service.
119	LOLO ECU Supply Voltage	Supply voltage too low	Shutdown	Check ECU supply voltage; contact Service.
120	HI ECU Supply Voltage	Supply voltage too high	Warning	Check ECU supply voltage; contact Service.
121	HIHI ECU Supply Voltage	Supply voltage too high	Shutdown	Check ECU supply voltage; contact Service.
122	HI T-ECU	Temperature in ECU too high.	Warning	Reduce power; improve engine room ventilation.
134	15V POS ECU DEFECT	Internal voltage (-15 VDC) faulty; automatic engine shutdown.	Shutdown	Replace ECU.
136	15V NEG ECU DEFECT	Internal voltage (-15 VDC) missing; automatic engine shutdown.	Shutdown	Contact Service.
142	BANK1 ECU DEFECT	Power output stage for control of solenoid valves on bank 1 faulty; engine does not start.	Shutdown	Replace ECU.
144	BANK2 ECU DEFECT	Power output stage for control of solenoid valves on bank 2 faulty; engine does not start.	Shutdown	Replace ECU.
180	AL CAN1 Node Lost	Connection to one node on CAN bus 1 failed.	Warning	Contact Service.
181	AL CAN2 Node Lost	Connection to one node on CAN bus 2 failed.	Warning	Contact Service.
186	AL CAN1 Bus Off	CAN controller 1 is in Bus-Off status.	Warning	Inspect CAN bus for short circuit; check shielding; contact Service.
188	AL CAN2 Bus Off	CAN controller 2 is in Bus-Off status; automatic changeover to CAN 1.	Warning	Inspect CAN bus for short circuit; check shielding; contact Service.
201	SD T-Coolant	Coolant temperature sensor faulty; short circuit or wire break.	Warning	Check sensor and cabling (B6), replace as necessary. Error cleared after restarting the engine.
202	SD T-Fuel	Fuel temperature sensor faulty; short circuit or wire break.	Warning	Check sensor and cabling (B33), replace as necessary. Error cleared after restarting the engine.
203	SD T-Charge Air	Charge-air temperature sensor faulty; short circuit or wire break.	Warning	Check sensor and cabling (B9), replace as necessary. Error cleared after restarting the engine.
204	SD Level Lube Oil	Lube-oil level sensor faulty; short circuit or wire break	Warning	Check sensor and cabling, replace as necessary.
205	SD T-Exhaust A	Exhaust temperature sensor on A-side faulty; short circuit or wire break.	Warning	Check sensor and cabling (B4.21), replace as necessary.
206	SD T-Exhaust B	Exhaust temperature sensor on B-side faulty; short circuit or wire break.	Warning	Check sensor and cabling (B4.22), replace as necessary.
207	SD T-Exhaust B	Exhaust temperature sensor on B-side faulty; short circuit or wire break	Warning	Check sensor and cabling (B4.22), replace as necessary. Error cleared after restarting the engine.
208	SD P-Charge Air	Charge-air pressure sensor faulty; short circuit or wire break	Warning	Check sensor and cabling (B10), replace as necessary. Error cleared after restarting the engine.
211	SD P-Lube Oil	Lube-oil pressure sensor faulty; short circuit or wire break	Warning	Check sensor and cabling (B5), replace as necessary. Error cleared after restarting the engine.
212	SD P-Coolant	Coolant pressure sensor faulty; short circuit or wire break.	Warning	Check sensor and cabling (B16), replace as necessary. Error cleared after restarting the engine.
213	SD P-Coolant Intercooler	Coolant pressure sensor of intercooler faulty; short circuit or wire break	Warning	Check sensor and cabling (B43), replace as necessary. Error cleared after restarting the engine.
214	SD P-CrankCase	Crankcase pressure sensor faulty; short circuit or wire break.	Warning	Check sensor and cabling (B50), replace as necessary. Error cleared after restarting the engine.
215	SD P-HD	Rail pressure sensor faulty; HP regulator in emergency mode.	Warning	Check sensor and cabling (B48), replace as necessary. Error cleared after restarting the engine.
216	SD T-Lube Oil	Lube-oil temperature sensor faulty; short circuit or wire break	Warning	Check sensor and cabling (B7), replace as necessary. Error cleared after restarting the engine.
219	SD T-Intake Air	Intake air temperature sensor faulty; short circuit or wire break	Warning	Check sensor and cabling (B3), replace as necessary. Error cleared after restarting the engine.
220	SD Coolant Level	Coolant level sensor faulty; short circuit or wire break.	Warning	Check sensor and cabling (F33), replace as necessary. Error cleared after restarting the engine.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Procedures

Valve clearance – Check and adjustment adjustment

⚠ Engine coolant temperature max. 40 °C.

⚠ Valves must be closed.

Tools: Feeler gauge Y20010128, Torque wrench 60-320 Nm F30047446, Ring socket, 24 mm F30039526

Remove cylinder head cover.
Install barring tool.
Rotate crankshaft until marking OT-A1 and pointer are aligned.
Check TDC position of piston in cylinder A1.
Check valve clearance with cold engine: inlet 0.2 mm, exhaust 0.5 mm.
Check all clearances at firing and overlap TDC per diagram.
If deviation exceeds 0.1 mm, adjust.
Release locknut, set adjusting screw, tighten locknut to 90 +9 Nm.

Valve clearance — Check and adjustment adjustment

Tools: Feeler gauge Y20010128, Torque wrench 60-320 Nm F30047446, Ring socket 24 mm F30039526

Remove cylinder head cover.
Install barring tool.
Rotate crankshaft until marking OT-A1 and pointer are aligned.
Check valve clearance with cold engine.
Inlet valves (long rocker arm) = 0.2 mm.
Exhaust valves (short rocker arm) = 0.5 mm.
Adjust if deviation exceeds 0.1 mm.
Release locknut, set adjusting screw, tighten locknut to 90 +9 Nm.

Air filter removal and installation maintenance

Loosen clamp.
Remove air filter and clamp from flange of intake housing.
Verify flange is clean and free of objects.
Place new air filter with clamp onto intake housing.
Tighten clamp.
Reset signal ring of service indicator.

Air filter — Removal and installation maintenance

Loosen clamp.
Remove air filter and clamp from flange of intake housing.
Verify no objects in flange of intake housing and clean it.
Place new air filter with clamp onto intake housing.
Tighten clamp.
Reset signal ring of service indicator.

Battery-charging generator drive – Drive belt replacement maintenance

⚠ Spring/circlip/tensioning roller preload: risk of injury; only use specified tool and equipment.

Remove guard cover.
Slacken screws (1) and (2) by half a turn.
Press belt tensioner fully using socket adapter on screw (3).
Tighten screw (2).
Remove used drive belt.
Fit new drive belt.
Slacken screw (2) by half a turn.
Tighten screw (1) to 42 Nm and screw (2) to 60-65 Nm.
Install guard cover.
Readjust belt tension after 30 minutes and after 8 hours runtime.

Battery-charging generator drive — Drive belt replacement maintenance

⚠ Spring/circlip/tensioning roller preload. Risk of injury. Only use specified tool and equipment.

Tools: Socket adapter or box wrench

Remove guard cover.
Slacken screws (1) and (2) by half a turn.
Place socket adapter or box wrench on screw (3) and press belt tensioner fully.
Tighten screw (2).
Remove used drive belt.
Fit new drive belt.
Slacken screw (2) by half a turn.
Tighten screw (1) to 42 Nm and screw (2) to 60 Nm up to 65 Nm.
Install guard cover.
Readjust belt tension after 30 minutes and again after 8 hours engine runtime.

Centrifugal oil filter – Cleaning and filter-sleeve replacement maintenance

⚠ Hot oil: wear protective clothing, gloves, goggles.

⚠ Compressed air: do not direct jet at persons; wear goggles and ear protectors.

Tools: Torque wrench 6-50 Nm F30027336

Remove clamp.
Release Tommy nut and take off cover.
Lift rotor, allow oil to drain, remove from housing.
Release rotor cover nut, take off rotor cover.
Remove filter sleeve and measure oil residue thickness; if >45 mm shorten interval.
Disassemble rotor tube, conical disk and rotor base; wash with cleaner.
Blow out with compressed air.
Check/renew sealing rings.
Assemble rotor tube, conical disk and rotor base with sealing ring.
Insert new filter sleeve with smooth paper surface facing wall.
Mount rotor cover with sealing ring and tighten rotor cover nut 35-45 Nm.
Place rotor in housing and check ease of movement.
Fit sealing ring, cover, Tommy nut by hand; fit clamp 8-10 Nm and cover nut 5-7 Nm.

Centrifugal oil filter — Cleaning and filter-sleeve replacement maintenance

⚠ Hot oil. Wear protective clothing, gloves, goggles. Avoid contact with skin. Do not inhale oil vapor.

⚠ Compressed air: do not direct jet at persons; wear protective goggles/safety mask and ear protectors.

Tools: Torque wrench 6-50 Nm F30027336

Remove clamp.
Release Tommy nut and take off cover.
Carefully lift rotor, allow oil to drain and remove from housing.
Release rotor cover nut.
Take off rotor cover.
Remove filter sleeve.
Measure thickness of oil residues on filter sleeve.
Assemble with new filter sleeve and sealing rings; tighten rotor cover nut 35-45 Nm, clamp 8-10 Nm, cover nut 5-7 Nm.

Charge-air coolant – Draining maintenance

⚠ Coolant is hot and under pressure.

Provide suitable container.
Turn breather valve counterclockwise to first stop and remove.
Draw off segregated corrosion inhibitor oil in expansion tank.
Open drain valves/plugs and drain coolant at LT coolant pump and LT thermostat housing.
Drain residual coolant at intercooler.
Close all drain valves and install drain plugs with new sealing rings.
Place breather valve on filler neck and close.

Charge-air coolant – Filling maintenance

⚠ Coolant is hot and under pressure.

⚠ Fill/top up coolant only into cold engine.

Turn breather valve counterclockwise to first stop and remove.
Connect pump to drain valve; open and pump coolant at 0.5 bar minimum.
Fill expansion tank until overflow edge reached.
Close drain valve and fit breather valve.
Start engine, run unloaded 10 seconds, stop engine.
Check coolant level and top up if required; repeat as necessary.

Crankcase breather – Oil separator replacement, diaphragm check maintenance

⚠ Hot oil: wear protective clothing, gloves, goggles; avoid skin contact and inhalation.

Tools: Torque wrench 6-50 Nm F30027336

Remove cover with O-ring.
Remove filter element from housing.
Insert new filter element in housing.
Fit cover with new O-ring.
Tighten cover screws to 10 Nm -2 Nm.
For diaphragm: remove cover, take off spring, seal and diaphragm.
Check diaphragm for damage, fit new if damaged.
Mount diaphragm, install new seal and spring with cover.
Tighten cover screws to 10 Nm -2 Nm.

Cylinder head cover – Remove and install maintenance

Tools: Torque wrench 10-60 Nm F30510423

Clean very dirty covers prior to removal.
Remove screws.
Remove cover with gasket.
Clean mating faces.
Check gasket, replace if necessary.
Place gasket and cover on cylinder head.
Install screws and tighten to 42 Nm.
Use new gasket when installing.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Voltage reconnection

Voltage	Phase	Connection	Leads	Notes
380/400/415				Standard scope voltage, 50 Hz (S1600/S2000/S4000)
380/440/480				Standard scope voltage, 60 Hz (S1600/S2000/S4000)
400/230				Standard scope voltage, 1600 series, 50 Hz
440/480				Alternator voltages, 60 Hz
480/277				Standard scope voltage, 1600 series, 60 Hz

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Parts cataloged across the MTU 20V4000 family

Part #	Description	Category
07500159b	Adapter, Injector	adapter
2020161	Air filter	air_filter
W1003	Replace air filter (→Page 6 – 36)	air_filter
W1005	Air filters	air_filter
WM00076	Air filter element	air_filter
21300116a	Drive belt condition check	belt
21300167a	Battery-charging generator drive — Drive belt tension adjustment	belt
21300167b	Battery-charging generator drive — Drive belt replacement	belt
F6557991	Puller bracket	bracket
W1009	Centrifugal oil filter (if fitted)	centrifugal_oil_filter
30380	Cleaner (Hakupur 312)	cleaner
W1011	Combustion chambers	combustion_chambers
W2004	Fit new high-pressure sensor in fuel system.	component_maintenance
W2006	Check engine coolant thermostat and fit new thermal actuator.	component_maintenance
W2007	Check charge-air coolant thermostat and fit new thermal actuator.	component_maintenance
W2009	Inspect centrifugal oil filter for wear (if fitted).	component_maintenance
W2010	Overhaul starter.	component_maintenance
W2062	Fit new sealing materials for all components disassembled.	component_maintenance
07500160a1	Cable connector, Injector	connector
20300173a	Coolant filter	coolant_filter
W1055	Overhaul cylinder heads, visually inspect piston crowns and running pattern of cylinder liners (→Workshop Manual)	cylinder_head
W1063	Overhaul cylinder heads. Visually inspect piston crowns and wear pattern on cylinder liner running surfaces.	cylinder_heads
W1038	Overhaul exhaust turbocharger (→Workshop Manual)	exhaust_turbocharger
W3000	Completely disassemble the engine. Inspect engine components as per Maintenance Manual instructions and repair or fit new components as required.	extended_component_maintenance
07500211a	Screw, Adapter (3)	fastener
08300126a	Easy-change filter	filter
40477	Assembly paste (Optimoly Paste White T)	fluid
X00029933	Grease (Kluthe Hakuform 30-10/Emulgier)	fluid
W1051	Overhaul fuel delivery pump (→Workshop Manual)	fuel_delivery_pump
W1001	Fuel filter or new fuel filter insert	fuel_filter
WM00086	Easy-change fuel filter	fuel_filter
W1006	Fuel injectors	fuel_injectors
01200210a	Gasket	gasket
04000047a	Sealing ring, Injector	gasket
07500220a	O-rings (2) and damping ring (3), Injector	gasket
08300029b	Gasket	gasket
F30027340	Ratchet adapter	hand_tool
20200220a	Disconnect pump and hose.	hose
07600211a	Injector	injector
507015174	Injectors Y39.1 to Y39.8, engine side A (underneath the cylinder head covers of the cylinders)	injector
F30378403	Injector installation jig	jig
F6555197	Lever for force-in lever	lever
F6557952	Force-in lever for injector installation	lever
W1008	Engine oil filter	oil_filter
WM00067	Oil filter element	oil_filter
0.04	PM	other_service
0.37	CO	other_service
0135315483	Connector pliers	other_service
1020FDL1106	Generator Model	other_service
1020FDM1182	Generator Model	other_service
1020FDS1124	Generator Model	other_service
1030FDH1252	Generator Model	other_service
1030FDH1254	Generator Model	other_service
1030FDL1110	Generator Model	other_service
10311583	Colt Hayes	other_service
20300174a	Sealing ring	other_service
217.3	Heat Radiated to Ambient	other_service
28149	Dry Weight	other_service
5.95	NOx + NMHC	other_service
60.6	Fan Power	other_service
95.4	Displacement	other_service
97.5	Sound Level	other_service
A001061/	MTU Fluids and Lubricants Specification	other_service
F30047446	Torque wrench, 60-320 Nm	other_service
F30510423	Torque wrench, 10-60 Nm	other_service
F6555766	Barring tool	other_service
M015565/01E	Air Filter	other_service
M015565/02E	Cooling system (LT circuit)	other_service
M015715/00E		other_service
MTU-015715/00E	Special tools	other_service
MTU-06-08	Safety instructions	other_service
F30377769	Puller for injector removal	puller
20300176a	Charge-air coolant pump — Relief bore check	pump
50701513a	Temperature sensors for single exhaust gas B4.1 to B4.8 (engine side A)	sensor
507015144	Temperature sensors for single exhaust gas B4.11 to B4.18 (engine side B)	sensor
F30027336	Torque wrench 6-50 Nm	special_tools
F6789889	Installation/removal tool for injector	special_tools
W2005	Check engine coolant thermostat and replace thermal actuator (→Workshop Manual)	thermostat
0015384230	Torque wrench, 0.5-5 Nm	tool
F30452578	Slotted nut driver, 0.5-5 Nm	tool
F30452739	Milling cutter	tool
W1002	Check valve clearance (→Page 6 – 10)	valve_gear

Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.

Common questions

What is the oil capacity of the MTU 20V 4000 G83?

The MTU 20V 4000 G83 engine has an oil capacity of 390.0 liters.

What is the displacement of the MTU 20V 4000 G83?

The MTU 20V 4000 G83 has a displacement of 95.4 liters.

Which generators use the MTU 20V 4000 G83 engine?

The MTU 20V 4000 G83 powers 4 generator set(s), including Kohler 2800REOZD, MTU 20 V 4000 G83, MTU DP 2600 D6S RW, MTU DS 2810 D6S RW.