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Cummins/Onan DFJA Generator Set

The Cummins/Onan DFJA is a 750 kW (938 kVA) Diesel standby generator set powered by a Cummins/Onan KTA38-G1 engine. It is available at 120/208 V, 120/240 V and 277/480 V, 3-phase and 60 Hz. It holds about 129 L (34.1 gal) of oil and 308 L (81.4 gal) of coolant. The same KTA38-G1 engine also powers generator sets from Onan.

750 kW
Standby
129.0 L
Oil capacity
4
Document types

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Specifications

FuelDiesel
Frequency60.0 Hz
Standby power750 kW
Standby kVA938
ControllerOnan
Oil capacity129.0 L
Voltage options120/208 V, 120/240 V, 277/480 V
Phase3-Phase
Power factor0.8
Battery voltage24 V
Coolant capacity308 L

Engine

Cummins/Onan KTA38-G1
Oil capacity129.0 L
Coolant capacity308.0 L
Rated speed1800 rpm

Maintenance & consumables

for the Cummins/Onan KTA38-G1
ItemSpecCapacityPart #Interval
Air filter— find
Fuel filterDiesel fuel filter— find
Oil filter— find
Belt— find
Coolant—
OilSAE 10W-30 (-25C to 35C) or SAE 15W-40 (above -10C)129.0 L—

Common questions

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

The Cummins/Onan DFJA is rated 750 kW standby (938.0 kVA).

What engine does the Cummins/Onan DFJA use?

The Cummins/Onan DFJA is powered by the Cummins/Onan KTA38-G1 engine.

What fuel does the Cummins/Onan DFJA use?

The Cummins/Onan DFJA runs on Diesel.

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

The Cummins/Onan KTA38-G1 engine in the Cummins/Onan DFJA has an oil capacity of 129.0 liters.

Parts

48
Part #DescriptionQtySystem
009492Angle, Air Cleaner MIG2Angle buy
009515Heat Shield, Hose Insulation2Heat shield buy
009577Mounting Plate1Mounting plate buy
009578Side Support LH1Side support buy
009579Side Support RH1Side support buy
009580Support Plate1Support plate buy
009581Air Cleaner Kit (Normal Duty) – 03SC0581Kit buy
009762Induction Tube, 6” x 350 mm2Induction tube buy
010112Thermostat2Thermostat buy
010156Heater Hose Connection2Connection buy
0101591” NPT x 16 I/D Hose Connector2Connector buy
010167Heater Support2Support buy
011250Battery Link2Link buy
011261Battery Lead (-VE)1Battery lead buy
011262Battery Lead (+VE)1Battery lead buy
011270Battery Lead, +ve1Battery lead buy
011281STR/STR - STR/Earth Lead (-VE)2Lead buy
01930388Sender, Oil Temperature1Sensor buy
03090269Switch, Low Engine Temperature (LET)1Switch buy
035090Battery Clamp1Clamp buy
035095Clamp Bolt2Bolt kuduparts $239.99
035105Battery Tray1Tray buy
049001Clip4Clip buy
05050151Reducer, 1/2” x 1/8” NPT1Reducer buy
05086111/4’’ NPT x 1’’ NPT Hex Nipple2Nipple buy
052045Lead Acid Battery - Dry (Export)4Battery buy
418520Battery Terminal, On Line4Terminal buy
427560Battery Boot, Single Outlet2Boot buy
427561Battery Boot, Copper Link2Boot buy
706187M4 x 12 mm Steel Cheesehead Screw8Screw buy
715250M8 Steel Wing Nuts2Nut buy
716007M4 Plain Washer, Thick, Steel, Form A8Washer buy
960-0504PCC Control Service Manual*Service manual buy
960-0507Detector Control Service Manual**Service manual buy
CS-1075-1HEAT EXCHANGERHeat exchanger buy
ES-1214.2FUEL TRANSFER PUMP - ELECTRICFuel filter buy
ES-1561CONTROL HEATERControl heater buy
ES-1680-1BATTERY CONNECTIONSBattery connections buy
FS-1692FUEL SOLENOID VALVE LOCATIONFuel solenoid valve location buy
FS-1776FUEL FILTERSFuel filters buy
LS-1180PRIMING TURBOCHARGERPriming turbocharger buy
960-0104Service part / kit buy
960-0142Service part / kit buy
960-0263Service part / kit buy
960-0606Service part / kit buy
960-0609Service part / kit buy
CS-1367-2COOLANT HEATERService part / kit buy
CS-1375REMOTE RADIATORService part / kit buy

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.

Available documents

Operator's manualReferenceParts manualService manual