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Cummins/Onan QSK60-G19 NR2 Engine

The Cummins/Onan QSK60-G19 NR2 is a 60.2 L 16-cylinder turbocharged and low temperature after-cooled engine rated at 1800 rpm, producing up to 2715 kW. It powers generator sets from Cummins/Onan, including the DQKAN. It holds 378 L (99.9 gal) of oil and 681.4 L (180.0 gal) of coolant.

Also known as: Cummins Inc. QSK60-G19 NR2

60.2 L

Displacement

Cylinders

1800 rpm

Rated speed

2715 kW

Gross power

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

Engine specifications

Oil capacity	378.0 L
Coolant capacity	681.4 L
Displacement	60.2 L
Cylinders	16
Aspiration	Turbocharged and low temperature after-cooled
Rated speed	1800 rpm
Gross power	2715 kW

Generator sets powered by this engine

Cummins/Onan DQKAN

How to read your Cummins/Onan engine serial & model number →

Common problems

The control will not allow the starter to attempt to engage or to crank Cranking lockout
Cause: Not specified in text
Some shutdown faults are bypassed Battle short mode
Output power of the genset is reduced in response to a fault condition Derate
Indicates that engine temperature may not be high enough for a 10 second start or proper load acceptance Low coolant temperature warning
Cause: Engine temperature is low
Indicates status of battery charging system (failure) Low and high battery voltage warning
Cause: Continuously monitoring battery voltage
Emergency stop
Fix: Annunciated whenever either emergency stop signal is received from external switch.
Derate
Fix: The Derate function reduces output power of the genset in response to a fault condition. If a Derate command occurs while operating on an isolated bus, the control will issue commands to reduce the load on the genset via contact closures or Modbus. If a Derate command occurs while in utility parallel mode, the control will actively reduce power by lowering the base load kW to the derated target kW.
Control system indicates a fault if the genset fails to start by the completion of the engine crack sequence Fail to start (overcrank) shutdown
Cause: Genset fails to start
Control has signaled starter to crank engine but engine does not rotate Fail to crank shutdown
Cause: Engine does not rotate
Can be set up to be a warning or shutdown Low coolant level warning
Cause: Set up in control
Battle short mode
Fix: If a bypassed shutdown fault occurs, the fault code and description will still be annunciated, but the genset will not shutdown. This will be followed by a fail to shutdown fault.
Battery indicates impending failure Weak battery warning
Cause: Control system tests the battery each time the genset is signaled to start
Annunciated whenever either emergency stop signal is received from external switch Emergency stop

Compiled from service & troubleshooting documentation across every generator set that uses the Cummins/Onan QSK60-G19 NR2.

Maintenance schedule

Item	Spec	Capacity	Part #	Interval
Fuel filter			A055Y798		Amazon eBay $5944.00

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
Air cleaner restriction indicator	Check	8 hr		Daily 8 Hours; if indicator shows red, replace elements and reset indicator
Charge alternator	Check	8 hr		Daily 8 Hours
Control panel operation	Check	8 hr		Daily 8 Hours
Coolant level of radiator(s) (water jacket & LTA)	Check	8 hr		Daily 8 Hours
Crankcase breather tube/collector	Drain	8 hr		Daily 8 Hours; check for condensed oil
Emergency stop button operation	Test	8 hr		Daily 8 Hours; with genset running
Engine coolant heater	Check	8 hr		Daily 8 Hours
Engine oil level	Check	8 hr		Daily 8 Hours
Exhaust components and hardware	Check	8 hr		Daily 8 Hours
Fuel level in tank	Check	8 hr		Daily 8 Hours
Fuel system primary filter/water separator	Drain	8 hr		Daily 8 Hours; drain one cup or more
Air intake system (leaks)	Inspect	50 hr		Weekly 50 Hours
All hardware (fittings, clamps, fasteners)	Check	50 hr		Weekly 50 Hours
Coolant lines and radiator hoses	Check	50 hr		Weekly 50 Hours
Cooling fan blades	Inspect	50 hr		Weekly 50 Hours
Drive belt condition and tension	Check	50 hr		Weekly 50 Hours
Exhaust condensation trap	Drain	50 hr		Weekly 50 Hours
Fuel lines and hoses	Check	50 hr		Weekly 50 Hours; check before starting and again with genset running
Generator set enclosure	Check	50 hr		Weekly 50 Hours
Air cleaner housing	Clean	250 hr	6 mo
Anti-freeze and DCA concentration	Check	250 hr	12 mo
Battery electrolyte level	Check	250 hr	12 mo	Also at least every month or 100 hours of operation, whichever occurs first
Engine ground	Check	250 hr	6 mo	Clean as necessary
Engine/Alternator flexible rubber coupling	Inspect	250 hr	6 mo
Fuel system filters	Replace	250 hr	6 mo
Lubricating oil and filters	Change	250 hr	6 mo
Radiator air flow	Check	250 hr	6 mo
Radiator core	Clean	250 hr	12 mo	Schedule may be reduced depending on operating conditions/environment
Water separator element	Replace	250 hr	6 mo
Generator set fuel system filters (Single Fuel Filter)	Replace	1000 hr	12 mo
Bearings	Lubricate	1500 hr	12 mo	Re-grease bearings
Engine mounts	Check	1500 hr	12 mo
Pre-lube system (if fitted)	Check	1500 hr	12 mo	Check for leaks and cracks
Starting motor	Check	1500 hr	12 mo
Aftercooler core	Check	2000 hr	12 mo
Coolant filter	Change	2000 hr	12 mo
Coolant heater	Check	2000 hr	12 mo
Fan drive idler arm and fan belt tensioner	Check	2000 hr	12 mo
Turbocharger	Check	2000 hr	12 mo
Water pump	Check	2000 hr	12 mo

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
Other	Battery CCA (minimum)	2200	CCA	battery specification
Other	Battery electrolyte specific gravity charge threshold	1.215	SG	charge battery if reading is below
Other	Battery electrolyte specific gravity, fully charged	1.260	SG	corrected to 25 °C (77 °F)
Other	Water quality - Calcium, Magnesium (hardness) maximum	170	ppm (as CaCO3)	cooling system make-up water
Other	Water quality - Chloride maximum	40	ppm (as Cl)	cooling system make-up water
Other	Water quality - Sulfate maximum	100	ppm (as SO4)	cooling system make-up water
Speed	Default cranking/rest start cycle	15 seconds cranking, 30 seconds rest	seconds	default 3 start cycles
Speed	Idle speed range to avoid in cold ambient temperatures	650 to 1000	rpm	low operating temperatures
Temperature	Electrolyte temperature limit during boost charge	43	°C	boost charge
Temperature	Maximum permissible electrolyte temperature during charge	45	°C	during charge
Voltage	Boost charge battery volts limit (12 V battery)	15	V	boost charge; reduce charge rate if reached
Voltage	Starting system voltage	24	VDC	battery type specification

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	Notes
Coolant	50/50 mixture of high-quality water (distilled or deionized) and fully formulated antifreeze (ethylene glycol or propylene glycol); Fleetguard® coolant containing DCA4	Cummins Engineering Standard 14603	If not using Fleetguard Compleat antifreeze or equivalent, add DCA4
Engine oil	high-quality multi-viscosity lubricating oil (e.g. Cummins Premium Blue® or equivalent)		Consult authorized distributor for correct specification for operating conditions; special running-in oils not recommended
Fuel	ASTM No. 2D diesel, minimum Cetane number 40; alternative BS 2869:2010+A1:2011	ASTM No. 2D	Higher cetane numbers may be needed at high altitude or very low ambient temperature
Fuel	No. 2-D diesel	ASTM D975	40-48 cetane

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
111	Internal ECM Failure		Shutdown
1131	Battle Short Active	Control is in Battle Short mode.	Warning	If possible, investigate any fault codes being bypassed.
115	Eng Crank Sensor Error		Shutdown
1416	Fail To Shutdown	Records a bypassed shutdown fault while the genset was in Battle Short mode.	Warning	Troubleshoot the shutdown fault causing the generator set to shut down.
143	Low Oil Rifle Pressure	Engine oil pressure has dropped below the warning trip point.	Warning	If powering critical loads and cannot be shut down, wait until the next shutdown period and follow fault code 415 procedure.
1433	Local Emergency Stop	A local Emergency Stop has been activated.	Shutdown	De-activate the Emergency Stop button; press Stop; press Reset; select desired operating mode.
1434	Remote Emergency Stop	A remote Emergency Stop has been activated.	Shutdown	De-activate the Emergency Stop button; press Stop; press Reset; select desired operating mode.
1435	Low Coolant Temperature	Engine coolant heater not operating or not circulating coolant; warning occurs when coolant temperature is 21 °C (70 °F) or lower.	Warning	Check coolant heater power supply, blown fuse or disconnected heater cable; check for coolant leaks; check and replenish coolant.
1438	Fail To Crank	Possible fault with control, speed sensing or starting system.	Shutdown	See code 441 for corrective action; ensure the Emergency Stop button is disengaged.
1439	Low Day Tank Fuel Switch	Day tank fuel supply running low.	Warning	Look for fuel leaks and repair; check and replenish fuel level.
144	High Coolant 1 Temp	Engine has begun to overheat and coolant temperature has risen to an unacceptable level.	Warning	Review fault code 151 correction list for other possible causes.
1441	Low Fuel Level	Fuel level has gone below the threshold setting for low fuel level against the time setting.	Warning	Look for fuel leaks and repair; check and replenish fuel level.
1442	Weak Battery	During cranking the battery voltage is at or below the weak battery warning trip point.	Warning	See code 441.
1443	Dead Battery	During cranking the battery voltage dropped below the control operating voltage, resetting the control.	Shutdown	See code 441.
1445	Short Circuit		Shutdown
1446	High AC Voltage		Shutdown
1447	Low AC Voltage		Shutdown
1448	Under Frequency	Generator set frequency dropped below 90% of nominal for approximately ten seconds.	Shutdown	Check the fuel supply; check the air intake supply; check the load and correct any overload.
1449	Over Frequency	Generator set frequency exceeded the Over Frequency threshold for the set time.	Shutdown	Check the fuel supply; check the air intake supply; check the load and correct any overload.
145	Low Coolant 1 Temp	Engine coolant temperature below the low coolant temperature warning threshold.	Warning	If powering critical loads and cannot be shut down, wait until next shutdown and follow fault code 1435 procedure.
146	Pre-High Engine Coolant Temperature	Engine operating near cooling system capacity.	Warning	Review fault code 151 correction list for other possible causes.
1465	Ready To Load	Paralleling event indicating the genset is ready to load.	Info
151	High Coolant Temp	Engine has overheated (coolant temperature above shutdown trip point or coolant level low).	Shutdown	Look for coolant leaks and repair; check and replenish coolant; check for cooling airflow obstructions; check fan belt; check blower fan and circulation pumps; reset and restart.
155	High Intake Manf 1 Temp	Intake manifold temperature has risen above the shutdown trip point; large load or high ambient temperature may be the cause.	Shutdown	Review fault code 151 correction list.
1852	Pre-High H2O In Fuel	Water in the fuel is above normal and has reached the warning trip point.	Warning	Check fuel in tank (local or remote); drain and re-fill if necessary.
196	Low Coolant 1 Level	Engine coolant level has fallen below the trip point.	Warning	Look for coolant leaks and repair; check and replenish coolant; reset and restart.
197	Low Coolant Level	Engine coolant level has fallen below the trip point.	Warning	Look for coolant leaks and repair; check and replenish coolant; reset and restart.
2335	AC Voltage Sensing Lost (Excitation Fault)	Loss of voltage sense - critical shutdown fault that suspends Battle Short mode.	Shutdown
234	Crankshaft Speed High	Overspeed - critical shutdown fault that suspends Battle Short mode.	Shutdown
235	Low Coolant Level	Low Coolant Level input active and threshold response set to Shutdown.	Shutdown	Look for coolant leaks and repair; check and replenish coolant; reset and restart.
2678	Charging Alternator Fail		Warning
27	Low AC voltage shutdown	Voltage on any phase dropped below preset value; adjustable 50-95% of reference, 2-20 s delay, default 85% for 10 s	Shutdown	Shut down genset
2977	Low Coolant 2 Level	Engine coolant level in the second radiator has fallen below the trip point.	Warning	Look for coolant leaks and repair; check and replenish coolant; reset and restart.
32	Reverse power shutdown	Adjustable 5-20% of standby kW rating, 1-15 s delay, default 10% for 3 s	Shutdown	Shut down genset
3416	Start System Fault	Start system fault condition exists.	Warning	Refer to fault codes 359 and 1438.
359	Fail To Start	Possible fault with control or starting system (engine cranks but fails to start).	Shutdown	Check for empty fuel tank, leaks or blocked lines; check/replace dirty fuel filter; check/replace blocked air filter; clean and tighten battery connections; recharge or replace battery; reset and restart.
40	Reverse Var shutdown	Adjustable 15-50% of rated Var output, 10-60 s delay, default 20% for 10 s	Shutdown	Shut down genset
415	Low Oil Rifle Press	Engine oil pressure has dropped below the shutdown trip point.	Shutdown	Check oil level, lines and filters; replenish oil if low; reset and restart.
427	CAN Data Link Degraded	Communication between the engine control (ECM) and the PCC is severed.	Warning	Ensure the E-Stop button is not active; reset the Local/Remote Emergency Stop.
441	Low Battery 1 Voltage	Battery voltage below 24 VDC approaching a low level at which unpredictable operation will occur.	Warning	Clean battery terminals and tighten connections; check electrolyte level, top up and recharge; recharge or replace battery.
442	High Battery 1 Voltage	Battery voltage approaching a high level (exceeding 32 VDC) at which control damage can occur.	Warning	Clean battery terminals and tighten connections; check battery charge float level and lower if applicable.
46	Negative sequence overcurrent warning	Protects generator from damage due to excessive imbalances in three phase load currents and/or power factors	Warning	Warning alarm
488	High Intake Manf 1 Temp	Intake manifold temperature has risen above the shutdown trip point.	Derate	Review fault code 151 correction list.
51	Overcurrent warning/shutdown	Thermal damage curve with instantaneous trip based on CT ratio and application power rating	Shutdown	Shut down genset
5135	Genset Overload		Shutdown
51G	Ground fault overcurrent	Detects ground fault via external ground fault relay contact input or external current transformer; delays and thresholds adjustable	Shutdown	Shut down genset
59	High AC voltage shutdown	Output voltage on any phase exceeds preset values; adjustable 105-125% of nominal, 0.1-10 s delay, default 110% for 10 s	Shutdown	Shut down genset
611	Engine Hot Shut Down	An engine hot shutdown occurred (cooldown timers bypassed).	Warning	Avoid hot shutdown; run genset at 10% or less load for three minutes before shutdown.
781	CAN Data Link Failure	Communication between the engine control (ECM) and the PowerCommand 3.3 control severed.	Shutdown	Ensure the E-Stop button is not active; reset the Local/Remote Emergency Stop.
81o	Over frequency shutdown/warning	Genset operating at damaging frequency; adjustable 2-10 Hz above nominal, 1-20 s delay, default 6 Hz for 20 s, disabled	Shutdown	Shut down genset
81u	Under frequency shutdown	Genset output frequency cannot be maintained; adjustable 2-10 Hz below reference, 5-20 s delay, default 6 Hz for 10 s	Shutdown	Shut down genset

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

Procedures

Air Cleaner Installation installation

Use the two air filter straps to install a new air cleaner on the mounting platform.
Reinstall the hose clamp to secure the air cleaner to the hump hose.

Air Cleaner Removal maintenance

⚠ Holes, loose-end seals, dented sealing surfaces or corrosion render the air cleaner inoperative.

Loosen the hose clamp securing the air cleaner to the hump hose.
Remove the air cleaner and the two air filter straps from the mounting platform.
Remove the air filter straps from the air cleaner.
Dispose of the old air cleaner in accordance with local environmental requirements.

Crankcase Breather Oil Drain Cup maintenance

⚠ Avoid prolonged skin contact with used oil.

Tools: Suitable container

With the generator set not in operation, open the drain valve and drain oil into a suitable container.
Close the drain valve when completed.
Clean the area of any spills and dispose of waste per local regulations.

Engine Oil Level Check maintenance

⚠ Crankcase pressure can blow out hot oil; do not check oil while running.

Tools: Lint free cloth, Funnel (where possible)

Remove the dipstick and wipe it clean with a lint free cloth.
Fully replace the dipstick.
Remove the dipstick and check oil level against the High and Low marks.
Top up to the High mark with the correct grade of oil.
Replace the dipstick and oil filler cap.
Start the engine, idle for five minutes, switch off and wait five minutes.
Check oil level and repeat if oil needs to be added.

Fuel Filter Element Removal maintenance

⚠ Do not allow fuel to drain onto the ground.

⚠ Do not permit any open flame near the fuel system.

Tools: Collar/vent cap wrench, Suitable container

Shut down the engine.
Close the fuel supply shutoff valve.
Place a suitable container under the filter to be replaced.
Use the collar/vent cap wrench to open the vent cap and break the air lock.
Open the drain valve and drain fuel below the collar.
Close the drain valve.
Loosen the collar with the collar/vent cap wrench.
Remove the clear cover, filter spring, fuel filter element, o-ring and sealing grommet.

Fuel Filter Element Replacement maintenance

⚠ Do not permit any open flame near the fuel system.

Install a new o-ring, filter element (with sealing grommet), filter spring and clear cover.
Install the vent cap and collar onto the clear cover.
Hand tighten; do not use tools to tighten the collar.

Fuel/Water Separator Drain maintenance

⚠ Diesel fuel is a fire and explosion hazard.

⚠ Drained liquids must be disposed of per local environmental regulations.

Tools: Suitable container

Shut off the engine.
Place a suitable container under the fuel filter.
With the fuel supply valve closed, open the vent cap to break the airlock.
Turn the valve counterclockwise until it drops about 25 mm (1 in). Drain until clear fuel is visible.
Push the valve up and turn clockwise to close the drain valve.
Open the fuel supply valve before starting the engine.
If more than 60 ml (2 oz) is drained, refill the filter to prevent hard starting.

Immobilizing for Safe Working maintenance

⚠ Accidental or remote starting can cause severe personal injury or death.

Tools: Insulated wrench, Warning notices

Press the Off mode switch on the operator panel to shut down the generator set.
Press the Emergency Stop button to prevent starting from any source.
Thoroughly ventilate the plant room before disconnecting any leads.
Isolate and lock off the supply to the heater, where fitted.
Isolate and lock off the supply to the battery charger, where fitted.
Isolate the fuel supply to the engine.
Using an insulated wrench, disconnect the negative (–) battery cable first.
Fit warning notices to indicate Maintenance in Progress – Plant Immobilized.

Oil Sampling Valve maintenance

⚠ Contact with hot oil can cause severe burns; allow engine to cool before maintenance.

Tools: Oil sampling kit

Remove the cap from the sample bottle and attach the live sampling cap.
Remove the oil sampling drain valve cap from the valve.
With the engine running at normal operating temperature, screw the live sampling cap onto the drain valve.
Fill the sample bottle as directed by the sampling kit/laboratory instructions.
Remove the sample bottle and replace the valve cap.
Remove the live sampling cap from the sample bottle and replace the bottle cap; send for analysis.
Clean up any spillage per local regulations.

Emergency Stop Reset (Code 1433/1434) operation

⚠ Do not use the Emergency Stop button for normal shut-down; it prevents a cooling down run.

Pull, or twist and pull, the button out.
Press the Stop button on the operator panel to acknowledge.
Press the Reset button.
Press the Auto or Manual Run button as previously determined.

Starting at Operator Panel (Manual Run Mode) operation

⚠ Make sure all pre-start checks are carried out before starting.

⚠ Warn all others in the vicinity that the generator set is about to start.

Make sure the main circuit breaker is in the open position.
Press the Manual button, then press the Start button within ten seconds.
Allow the engine to warm up and reach rated speed and voltage.
Close the main circuit breaker and apply load as required.

Stopping at Operator Panel (Manual Mode) operation

⚠ Avoid hot shutdown under load to help prolong reliability.

Remove the load.
Open the main circuit breaker.
Press the stop button on the HMI operator panel to initiate cool down.
Once the cool down timer expires, the generator set shuts off and enters Off mode.

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
12470	3	3 Ph Wye	6	Temp rise 105°C, Duty S, Max surge 11213 kVA, Winding No. 91, ADS-533, B568
13200	3	3 Ph Wye	6	Temp rise 105°C, Duty S, Max surge 11213 kVA, Winding No. 91, ADS-533, B501
13800	3	3 Ph Wye	6	Temp rise 80°C, Duty S, Max surge 11213 kVA, Winding No. 91, ADS-533, B610
240-208	single	240-208 volt connection		Coolant heater; for 240-208 volt move jumpers as shown
380	3	3 Ph Wye	6	Temp rise 105°C, Duty S, Max surge 13024 kVA, Winding No. 13, ADS-531, B408
416	3	3 Ph Wye	6	Temp rise 150°C, Duty S, Max surge 9719 kVA, Winding No. 12, ADS-517, B682
4160	3	3 Ph Wye	6	Temp rise 80°C, Duty S, Max surge 11185 kVA, Winding No. 51, ADS-545, B605
440	3	3 Ph Wye	6	Temp rise 105°C, Duty S, Max surge 13024 kVA, Winding No. 12, ADS-531, B664
480	3	3 Ph Wye	6	Temp rise 125°C, Duty S, Max surge 8412 kVA, Winding No. 12, ADS-516, B246
480	single	480 volt connection		Coolant heater; jumpers are factory installed in the 480 volt configuration
600	3	3 Ph Wye	6	Temp rise 125°C, Duty S, Max surge 8189 kVA, Winding No. 7, ADS-516, B602

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

Common questions

What is the oil capacity of the Cummins/Onan QSK60-G19 NR2?

The Cummins/Onan QSK60-G19 NR2 engine has an oil capacity of 378.0 liters.

What is the displacement of the Cummins/Onan QSK60-G19 NR2?

The Cummins/Onan QSK60-G19 NR2 has a displacement of 60.2 liters with 16 cylinders.

Which generators use the Cummins/Onan QSK60-G19 NR2 engine?

The Cummins/Onan QSK60-G19 NR2 powers 1 generator set(s), including Cummins/Onan DQKAN.

What is a common problem with the Cummins/Onan QSK60-G19 NR2 engine?

A commonly reported issue on generators using the Cummins/Onan QSK60-G19 NR2 is: The control will not allow the starter to attempt to engage or to crank. Cause: Not specified in text.