HomeCummins/OnanCummins/Onan DV

Cummins/Onan DV Generator Set

The Cummins/Onan DV is a 50 kW (75 kVA) ASTM No. 2 Diesel standby generator set powered by a Cummins/Onan 0649T engine. It is available at 110/190 V, 110/220 V, 115/200 V, 115/230 V, 120/208 V, 240/480 V, 254/440 V, 277/480 V and 347/600 V, Single Phase-phase and 60 Hz. It holds about 12.5 L (3.3 gal) of oil and 18.9 L (5.0 gal) of coolant. Starting uses 2 group-31 batteries rated 625 CCA at 12 V.

50 kW
Standby
12.5 L
Oil capacity
1
Document types

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

Specifications

FuelASTM No. 2 Diesel
Frequency60.0 Hz
Standby power50 kW
Prime power60 kW
Oil capacity12.5 L
Voltage options110/190 V, 110/220 V, 115/200 V, 115/230 V, 120/208 V, 240/480 V, 254/440 V, 277/480 V, 347/600 V
PhaseSingle Phase
Power factor0.8
Battery group31
Battery cranking625 CCA
Battery voltage12 V
Battery quantity2
Coolant capacity18.9 L

Engine

Cummins/Onan 0649T
AspirationASTM No. 2 Diesel
Rated speed1800 rpm

Maintenance & consumables

for the Cummins/Onan 0649T
ItemSpecCapacityPart #Interval
Air filter500 hr find
Fuel filterFuel Sulphur Cont. Change Interval1000 hr find
Oil filter2000 hr find
Belt5000 hr find
Coolant10000 hr
Coolant filter find
OilCD62 hr

Common questions

What is the power rating of the Cummins/Onan DV?

The Cummins/Onan DV is rated 50 kW standby.

What engine does the Cummins/Onan DV use?

The Cummins/Onan DV is powered by the Cummins/Onan 0649T engine.

What fuel does the Cummins/Onan DV use?

The Cummins/Onan DV runs on ASTM No. 2 Diesel.

Troubleshooting

28

Fault codes

CodeMeaningCauseRemedy
OvercrankOvercrank fault lamp lights and engine stops cranking after about 75 seconds.Check for empty fuel tank, empty fuel filters, system leaks, or plugged fuel filters and fuel supply lines. Correct as required.
Low Oil PressureEngine runs and then shuts down. The low oil pressure fault lamp is on.Check fuel supply and for dirty fuel filters. Replace if necessary. Check oil level and replenish if needed.
FAULT 1 (red)Undedicated fault. May be factory programmed as a shutdown or non-shutdown, and as a timed or non-timed fault. (Normally set for timed shutdown).
FAULT 2 (red)Same features as Fault 1 (Normally set for non-timed shutdown).
yellow lampLow engine temperature fault circuit is energizedPower outage or power disconnect (blown fuses)Check power source supplying the coolant heater. If coolant heater, sensor or engine monitor is suspected, contact an Onan Distributor.
yellow lampLow fuel fault circuit is energizedCheck fuel tank and replenish fuel as needed. If fuel in tank is adequate/full, contact an Onan Distributor.
red lampAny undedicated (red) fault lamp is energizedBoth fault functions are normally factory set and may or may not shut down the generator set. Both fault functions may be factory set optionally for non-shutdown and time delayed after start disconnect or immediate operation. Troubleshooting should be directed to the selected sensor application. If an engine monitor malfunction or sensor is suspected, contact an Onan Distributor.

Symptoms & remedies

SymptomCauseRemedy
Engine stops cranking and fault lamp lights, after cranking approximately 75 seconds.Check for empty fuel tank, empty fuel filters, system leaks, or plugged fuel filters and fuel supply lines. Correct as required. Check for dirty or plugged air filters and replace if necessary (see MAINTENANCE section).
Fault lamp lights immediately after engine starts and unit shuts down.Indicates possible overspeed condition. Contact an Onan Distributor.
Fault lamp lights and engine stops running.Check oil level and replenish if necessary. Check coolant level on radiator and heat exchanger sets and replenish if necessary. Check for slipping drive belts or for obstructions to the airflow. Check for empty fuel tank, fuel system leaks, or plugged filters. Contact an Onan Distributor if none of the above.
Fault lamp lights, no fault exists.Engine monitor or sensor malfunction. Contact an Onan Distributor.
Low oil pressure shutdown; or pre low oil pressure shutdown if so programmed.Check oil level and replenish if necessary. Contact an Onan Distributor if oil level is correct.
High engine temperature shutdown; or pre high engine temperature shutdown if so programmed.Check coolant level on radiator and heat exchanger sets and replenish if necessary. Check for slipping drive belts or for obstructions to the airflow. Contact an Onan Distributor if none of the above.
Overspeed shutdown.Contact an Onan Distributor.
Any one of the red fault lamps: (or yellow pre-fault lamps if programmed for shutdown) light, but no shutdown occurs.Engine monitor malfunction. Contact an Onan Distributor.
Run lamp is not on when generator set is operating.Indicates that a starter disconnect function is not working. Contact an Onan Distributor.
Low engine temperature fault circuit (yellow lamp) is energized.Check power source supplying the coolant heater. Problem might be a power outage or power disconnect (blown fuses). If coolant heater, sensor or engine monitor is suspected, contact an Onan Distributor.
Low fuel fault circuit (yellow lamp) is energized.Check fuel tank and replenish fuel as needed. If fuel in tank is adequate/full, contact an Onan Distributor.
An undedicated (red) fault lamp is energized.Both fault functions are normally factory set for shutdown and Fault 1 is time delayed after start disconnect while Fault 2 is immediate. Both fault functions may be factory set optionally for non-shutdown and time delayed after start disconnect or immediate operation. Troubleshooting should be directed to the selected sensor application. If an engine monitor malfunction or sensor is suspected, contact an Onan Distributor.
Fault lamp lights and engine shuts down after running for a period.Check oil level and replenish if necessary. Check coolant level on radiator and heat exchanger sets and replenish if necessary. Check for slipping drive belts or for obstructions to the airflow. Check for empty fuel tank, fuel system leaks, or plugged filters. Contact an Onan Distributor if none of the above.
Engine has shut down because of critically low oil pressureLO OIL PRES (red) indicates engine has shut down because of critically low oil pressure.
Engine has shut down because of critically high temperatureHI| ENG TEMP (red) indicates engine has shut down because of critically high temperature.
Engine has shut down because of excessive speedOVERSPEED (red) indicates engine has shut down because of excessive speed.
Starter has been locked out because of excessive cranking timeOVERCRANK (red) indicates the starter has been locked out because of excessive cranking time.
Overspeed shutdownContact an Onan Distributor
Anyone of the red fault lamps (or yellow pre-fault lamps if programmed for shutdown) light, but no shutdown occursContact an Onan Distributor
Engine monitor malfunctionContact an Onan Distributor
Run lamp is not on when generator set is operatingIndicates that a starter disconnect function is not working. Contact an Onan Distributor.

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.

Parts

173
Part #DescriptionQtySystem
11-85Oil FilterOil filter PartsGeek
186-1782Gasket, Head, Cylinder1Gasket PartsGeek
186-1785Gasket, Exhaust Manifold1Gasket PartsGeek
186-1810Nozzle1Injector PartsGeek
186-1817Gasket1Gasket PartsGeek
186-1831Gasket, Oil Pan1Gasket PartsGeek
186-1832Gauge, Oil4Sensor PartsGeek
186-1836Seal, O-Ring1Seal PartsGeek
186-1906Thermostat, Cooler, Oil1Thermostat PartsGeek
186-1953Seal, O-Ring1Seal PartsGeek
186-1956Seal, O-Ring1Seal PartsGeek
186-1957Elbow, Exhaust4Hose PartsGeek
186-1977Pump Assembly, Oil1Pump PartsGeek
186-1978Oil Pump1Pump PartsGeek
186-1981Bracket, Oil Filter1Oil filter PartsGeek
186-1982Body, Oil Filter1Oil filter PartsGeek
186-1985Tube, Supply1Hose PartsGeek
186-1986Elbow1Hose PartsGeek
186-1987Connector1Hose PartsGeek
186-2055Seal, O-Ring1Seal PartsGeek
186-2063Impeller, Blower1Impeller PartsGeek
186-2067Turbocharger Assembly1Turbocharger PartsGeek
193-0244Sender, Oil Pressure (E1)Sensor PartsGeek
193-0353Sender, Temperature - OilSensor PartsGeek
309-0272Air Cleaner - Heavy Duty (10" Inlet Tube)Air filter PartsGeek
982-0120Battery2Battery PartsGeek
CS-1276-1CANISTER STYLE RESTRICTION BODY ASSEMBLY INDICATORAir filter PartsGeek
FS-1418-1AUTOMOTIVE STYLE ELEMENTAir filter PartsGeek
H02-0567OIL FILTER1Oil filter PartsGeek
H02-0589FUEL FILTER1Fuel filter PartsGeek
H02-0593BATTERY1Battery PartsGeek
H02-0598COOLANT FILTER1Coolant filter PartsGeek
H02-0634AIR FILTER1Air filter PartsGeek
H02-0647BELT1Belt PartsGeek
H02-0648SPARK PLUG1Spark plug PartsGeek
M-1156-1Air CleanerAir filter PartsGeek
M-1603Vibration DamperVibration damper PartsGeek
186-0103Washer2Service part / kit PartsGeek
186-0117Service part / kit PartsGeek
186-0120Service part / kit PartsGeek
186-0123Service part / kit PartsGeek
186-0125Service part / kit PartsGeek
186-0156Service part / kit PartsGeek
186-0182Service part / kit PartsGeek
186-0219Washer6Service part / kit PartsGeek
186-0220Packing6Service part / kit PartsGeek
186-0283Service part / kit PartsGeek
186-0284Service part / kit PartsGeek
186-0488Service part / kit PartsGeek
186-0693Insert, Exhaust1Service part / kit PartsGeek
186-0695Service part / kit PartsGeek
186-0733Service part / kit PartsGeek
186-0734Service part / kit PartsGeek
186-0735Service part / kit PartsGeek
186-0736Service part / kit PartsGeek
186-0737Service part / kit PartsGeek
186-0738Service part / kit PartsGeek
186-0739Service part / kit PartsGeek
186-0740Service part / kit PartsGeek
186-0741Service part / kit PartsGeek
186-0742Service part / kit PartsGeek
186-0743Insert, Intake1Service part / kit PartsGeek
186-0744Service part / kit PartsGeek
186-0746Service part / kit PartsGeek
186-0747Service part / kit PartsGeek
186-0748Service part / kit PartsGeek
186-0749Service part / kit PartsGeek
186-0750Service part / kit PartsGeek
186-0751Service part / kit PartsGeek
186-0752Service part / kit PartsGeek
186-0754Service part / kit PartsGeek
186-0755Service part / kit PartsGeek
186-0756Service part / kit PartsGeek
186-0758Service part / kit PartsGeek
186-0759Service part / kit PartsGeek
186-0760Service part / kit PartsGeek
186-0761Service part / kit PartsGeek
186-0787Service part / kit PartsGeek
186-0788Service part / kit PartsGeek
186-0789Service part / kit PartsGeek
186-0791Service part / kit PartsGeek
186-0792Service part / kit PartsGeek
186-0793Service part / kit PartsGeek
186-0794Service part / kit PartsGeek
186-0795Service part / kit PartsGeek
186-0796Service part / kit PartsGeek
186-0797Service part / kit PartsGeek
186-0798Service part / kit PartsGeek
186-0799Service part / kit PartsGeek
186-0800Service part / kit PartsGeek
186-0801Service part / kit PartsGeek
186-0802Service part / kit PartsGeek
186-0803Service part / kit PartsGeek
186-0804Service part / kit PartsGeek
186-0805Service part / kit PartsGeek
186-0806Service part / kit PartsGeek
186-0807Service part / kit PartsGeek
186-0808Service part / kit PartsGeek
186-0809Service part / kit PartsGeek
186-0810Service part / kit PartsGeek
186-0811Service part / kit PartsGeek
186-0812Service part / kit PartsGeek
186-0813Service part / kit PartsGeek
186-0814Service part / kit PartsGeek
186-0815Service part / kit PartsGeek
186-0816Service part / kit PartsGeek
186-0817Service part / kit PartsGeek
186-0818Service part / kit PartsGeek
186-0819Service part / kit PartsGeek
186-0820Service part / kit PartsGeek
186-0821Service part / kit PartsGeek
186-0825Service part / kit PartsGeek
186-0826Service part / kit PartsGeek
186-0827Service part / kit PartsGeek
186-0828Service part / kit PartsGeek
186-0829Service part / kit PartsGeek
186-0831Service part / kit PartsGeek
186-0832Service part / kit PartsGeek
186-0833Service part / kit PartsGeek
186-0834Service part / kit PartsGeek
186-0835Service part / kit PartsGeek
186-0836Service part / kit PartsGeek
186-0837Service part / kit PartsGeek
186-0838Service part / kit PartsGeek
186-0839Service part / kit PartsGeek
186-0840Service part / kit PartsGeek
186-0842Service part / kit PartsGeek
186-0950Service part / kit PartsGeek
186-0951Service part / kit PartsGeek
186-0952Service part / kit PartsGeek
186-0953Service part / kit PartsGeek
186-1063Service part / kit PartsGeek
186-1112Service part / kit PartsGeek
186-1179Bolt2Service part / kit PartsGeek
186-1729Valve, Intake1Service part / kit PartsGeek
186-1797Guide, Valve1Service part / kit PartsGeek
186-1824Cover, Gear1Service part / kit PartsGeek
186-1830Frame, Oil Pan1Service part / kit PartsGeek
186-1835Cover1Service part / kit PartsGeek
186-1839Filler, Oil4Service part / kit PartsGeek
186-1852Damper Assembly1Service part / kit PartsGeek
186-1859Gear Assembly, Idler1Service part / kit PartsGeek
186-1860Gear, Idler1Service part / kit PartsGeek
186-1865Camshaft1Service part / kit PartsGeek
186-1866Gear1Service part / kit PartsGeek
186-1867Plate, Thrust1Service part / kit PartsGeek
186-1874Valve, Exhaust1Service part / kit PartsGeek
186-1947Head Assembly, Cylinder1Service part / kit PartsGeek
186-1948Head Assembly, Cylinder (Less Valve)1Service part / kit PartsGeek
186-1950Manifold, Exhaust - Front1Service part / kit PartsGeek
186-1951Manifold, Exhaust - Center1Service part / kit PartsGeek
186-1952Manifold, Exhaust - Rear1Service part / kit PartsGeek
186-1964Block Assembly, Cylinder1Service part / kit PartsGeek
186-1967Crankshaft Assembly1Service part / kit PartsGeek
186-1969Bearing, Main1Service part / kit PartsGeek
186-1971Flywheel Assembly1Service part / kit PartsGeek
186-1993Cover, Oil Cooler1Service part / kit PartsGeek
186-2030Element, Cooler, Oil1Service part / kit PartsGeek
186-2049Housing, Center1Service part / kit PartsGeek
186-2050Bearing, Journal1Service part / kit PartsGeek
186-2051Bearing, Thrust1Service part / kit PartsGeek
186-2062Plate, Diffuser1Service part / kit PartsGeek
186-2064Housing, Blower1Service part / kit PartsGeek
186-2065Rotor, Turbine1Service part / kit PartsGeek
186-2086Housing, Turbine1Service part / kit PartsGeek
309-01691 Begin Spec G 25 26Service part / kit PartsGeek
502-0029Nut, Hex (M8x 1.25x 16MM)Service part / kit PartsGeek
502-0058Tee, Pipe - Oil Line The Following Is a Special List Of CorrosService part / kit PartsGeek
502-0917Adapter, PipeService part / kit PartsGeek
982-0221Service part / kit PartsGeek
982-0601Safety Precautions5Service part / kit PartsGeek
C121122 C123Service part / kit PartsGeek
T1T2TOTTI] TSTI2ZT4 «©T9 «T5777 73. 10Service part / kit PartsGeek

Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.

Fuel consumption

RatingLoadL/hgal/h
Prime
Standby

Available documents

Parts manual — 0932-0112 Onan Post-Sale Literature Index (07-1998) (Cummins/Onan)Parts manual — 982-0221 Onan DVA Parts Manual (8-1986) (Cummins/Onan)Parts manual — 982-0229 Onan DVJ Parts Manual (9-1986) (Cummins/Onan)