HomeCummins/OnanCummins/Onan DGCG

Cummins/Onan DGCG Generator Set

The Cummins/Onan DGCG is a 65 kW (81 kVA) Diesel standby generator set powered by a Cummins/Onan 4BTA3.9 engine. It is available at 12 V, Three-phase-phase, 50 Hz and rated 120 A. It holds about 10.9 L (2.9 gal) of oil and 17.7 L (4.7 gal) of coolant, with a maximum ambient rating of 40 °C. Starting uses 1 group-4 battery rated 1080 CCA at 12 V. The set measures 2104×1016×1232 mm (82.8×40.0×48.5 in), weighs about 854 kg (1883 lb) and produces Not specified dBA at Not specified m. An integrated tank holds 24 L (6.3 gal), roughly 24 hours of runtime.

65 kW
Standby
3.9 L
Displacement
10.9 L
Oil capacity
3
Document types

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

Specifications

FuelDiesel
Frequency50.0 Hz
Standby power65 kW
Standby kVA81
Prime power60 kW
EmissionsNot specified
ControllerPowerCommand, PowerCommand 2100
Oil capacity10.9 L
AlternatorCummins/Onan Not specified (4-pole, Class H insulation)
Voltage options12 V
PhaseThree Phase
Rated current120 A
Power factorNot specified
Circuit breaker120 A
Battery group4
Battery cranking1080 CCA
Battery voltage12 V
Battery quantity1
Coolant capacity17.7 L
Max ambient40 °C
Dimensions (L×W×H)2104×1016×1232 mm
Dry weight854 kg
Fuel tank24.0 L
Tank runtime24.0 hr

Engine

Cummins/Onan 4BTA3.9
Oil capacity10.4 L
Coolant capacity10.0 L
Displacement3.9 L
AspirationTurbocharged
Rated speed1800 rpm

Maintenance & consumables

for the Cummins/Onan 4BTA3.9
ItemSpecCapacityPart #Interval
Air filterCummins engine Operation and Maintenance Manual8760 hr find
Fuel filterCummins engine Operation and Maintenance Manual50 hr find
Oil filterCummins engine Operation and Maintenance Manual500 hr find
BeltCummins engine Operation and Maintenance Manual find
CoolantCummins engine Operation and Maintenance Manual
Coolant filter find
OilCummins engine Operation and Maintenance Manual500 hr

Common questions

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

The Cummins/Onan DGCG is rated 65 kW standby (81.0 kVA).

What engine does the Cummins/Onan DGCG use?

The Cummins/Onan DGCG is powered by the Cummins/Onan 4BTA3.9 engine.

What fuel does the Cummins/Onan DGCG use?

The Cummins/Onan DGCG runs on Diesel.

What is the oil capacity of the Cummins/Onan DGCG?

The Cummins/Onan 4BTA3.9 engine in the Cummins/Onan DGCG has an oil capacity of 10.4 liters.

What alternator does the Cummins/Onan DGCG use?

The Cummins/Onan DGCG uses a Cummins/Onan Not specified alternator. It has 4 poles. Insulation class H.

Troubleshooting

63

Fault codes

CodeMeaningRemedy
F01Generator does not start.Check the battery voltage and ensure it is above 12V. Verify that the fuel supply is adequate and check for any fuel system issues. Refer to the Fault Code Table for further troubleshooting.
F02Generator produces low output power.Check the air filter for blockage or damage. Verify that the fuel supply is adequate and check for any fuel system issues. Refer to the Fault Code Table for further troubleshooting.
F03Generator produces excessive noise.Check the engine oil level and ensure it is within the recommended range. Verify that all components are properly tightened, including bolts and nuts. Refer to the Fault Code Table for further troubleshooting.
F04Generator produces excessive vibration.Check the engine mounts for any damage or wear. Verify that all components are properly tightened, including bolts and nuts. Refer to the Fault Code Table for further troubleshooting.
F05Generator produces excessive exhaust smoke.Check the air filter for blockage or damage. Verify that the fuel supply is adequate and check for any fuel system issues. Refer to the Fault Code Table for further troubleshooting.
F06Generator produces excessive heat.Check the cooling system for any leaks or blockages. Verify that the coolant level is within the recommended range. Refer to the Fault Code Table for further troubleshooting.
F07Generator produces excessive oil consumption.Check the engine oil level and ensure it is within the recommended range. Verify that all components are properly tightened, including bolts and nuts. Refer to the Fault Code Table for further troubleshooting.
F08Generator produces excessive fuel consumption.Check the air filter for blockage or damage. Verify that the fuel supply is adequate and check for any fuel system issues. Refer to the Fault Code Table for further troubleshooting.
121Speed Signal Lost
135Oil Pressure Sensor High
141Oil Pressure Sensor Low
143Pre-Low Oil Pressure Sensor
144Coolant Temperature Sensor High
145Coolant Temperature Sensor Low
146Pre-High Cool Temp
151High Coolant Temp
197Low Coolant Level
234Overspeed
235Low Coolant Level
359Fail to Start
415Low Oil Pressure
441Low Battery Voltage
442High Battery Voltage
1123Shutdown After Battle Short
1124Delayed Shutdown
1131Battle Short Active
1244Engine Normal Shutdown
1311Customer Inputs #1
1312Customer Inputs #2
1317Customer Inputs #3
1318Customer Inputs #4
1334Crit Scaler OR
1335Non-Crit Scaler OR
1416Fail to Shutdown
1417Power Down Failure
1433Emergency Stop
1434Remote Emergency Stop
1435Low Coolant Temperature
1438Fail to Crank
1442Weak Battery
1443Battery Failed
1444KW Overload
1445Short Circuit
1446High AC Voltage
1447Low AC Voltage
1448Under Frequency
1449Over Frequency
1461Loss of Field
1466Modem Failure
1468Network Error
1469Speed/Hz Match
1471Over Current
1472Over Current
2335Excitation Fault
2336Memory Error
2341High Control Temperature
2342Too Long in Idle
2967Governor Fault
2968AVR Fault
2969LON Failure
2972Field Overload

Symptoms & remedies

SymptomRemedy
Status Indicators are not functioning properly.Check the status indicators for any visible damage or loose connections. If the issue persists, refer to the Fault Code Table for further troubleshooting.
Line Circuit Breaker (Optional) trips frequently.Check the circuit breaker for any visible damage or loose connections. Verify that the generator's load is within the rated capacity of the circuit breaker.

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

Parts

35
Part #DescriptionQtySystem
2.4LEngine1Engine buy
240976Switch, high temperature 268298 Sender, temperature1Sensor buy
241481Switch, high temperature 268298 Sender, water temperature1Sensor buy
265484Line. flex. fuel, 41"2Hose buy
266110Line, flex. fuel, 50”2Hose buy
268298Sender, water temperature gauge1Sensor buy
271500Line. flex. fuel, 22”Hose buy
285498Hose, moldedHose buy
285542Gasket. manifoldGasket buy
285722Hose, upper moldedHose buy
285957Line. flex. fuelHose buy
290090Switch, low water temperature1Sensor buy
A046K020Oil Filter1Oil filter buy
X-797-2Hose, flex1Hose buy
0L2090-C60 kW (2.4 L)1Service part / kit buy
928-0502BService part / kit buy
928-0506Service part / kit buy
960-0135Service part / kit buy
960-0504AService part / kit buy
960-0505Service part / kit buy
960-12Service part / kit buy
A-290538Block heaterService part / kit buy
A-290885Heater, block (240V)Service part / kit buy
A0000018981Ultrasonic Cleaner Solution1Service part / kit Amazon eBay
A0000019001All Surface Protectant1Service part / kit Amazon eBay
G005651-0Base Plug Kit1Service part / kit Amazon eBay
G005703-0Paint Kit1Service part / kit Amazon eBay
G006174-0Extreme Cold Weather Kit1Service part / kit buy
G006175-0Cold Weather Kit1Service part / kit buy
G006176-0Scheduled Maintenance Kit1Service part / kit buy
G007000-0Smart Management Module (50 amp)1Service part / kit Amazon eBay $70.00
G007005-0Wi-Fi LP Fuel Level Monitor1Service part / kit Amazon eBay
G007006-0Smart Management Module (100 amp)1Service part / kit Amazon eBay
G0071690Mobile Link ® 4G LTE Cel - lular Accessory1Service part / kit Amazon eBay
GM17010-KP1LP fuel mixer diaphragm kit1Service part / kit eBay

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
Prime25%1.87.0
Prime50%2.811.0
Prime75%4.116.0
Prime100%5.621.0
Standby
Standby25%1.97.0
Standby50%3.112.0
Standby75%4.617.0
Standby100%24.0

Available documents

Spec sheet — S-1445 (Cummins/Onan)Spec sheet — S-1446 (Cummins/Onan)Operator's manual — Cummins-DGBB-DGBC-DGCA-DGCB-DGCG-DGFA-DGFB-DGFC-DGFS-operator-manual (Cummins/Onan)Service manual — 900-0907 Cummins DGxx Series Repair Times (Cummins/Onan)Service manual — 960-0518D Cummins DGBB DGC DGDA DGFB Series Service Manual (2-2004) (Cummins/Onan)Service manual — 960-0615C Cummins DGBB DGC DGFA Series Operator's Manual (10-2003) (Cummins/Onan)Service manual — 960-0628D Cummins DGB DGC DGF Series Installation Manual (2-2004) (Cummins/Onan)