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Home›Cummins/Onan›Cummins/Onan 1500DFLE

Cummins/Onan 1500DFLE Generator Set

The Cummins/Onan 1500DFLE is a 1500 kW Diesel standby generator set powered by a Cummins/Onan KTA50-G9 engine. It is available at 24 V, 1-phase and 60 Hz. It holds about 120 L (31.7 gal) of oil and 521 L (137.6 gal) of coolant.

1500 kW
Standby
50.3 L
Displacement
120.0 L
Oil capacity
1
Document types

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

Specifications

FuelDiesel
Frequency60.0 Hz
Standby power1500 kW
Controller3100, Detector, PowerCommand, PowerCommand 2100
Oil capacity120.0 L
Voltage options24 V
Phase1
Battery voltage24 V
Battery quantity1

Engine

Cummins/Onan KTA50-G9
Oil capacity120.0 L
Coolant capacity521.0 L
Displacement50.3 L
AspirationTurbocharged and low temperature aftercooled
Rated speed1800 rpm

Maintenance & consumables

for the Cummins/Onan KTA50-G9
ItemSpecCapacityPart #Interval
Air filter140-2501 PartsGeek FridayParts $152.02
Fuel filter— find
Oil filterFive spin-on, full flow— find
Belt— find
Coolant104oF (40oC) ambient radiator—
OilCummins Heavy-Duty Engine - Rugged 4-cycle industrial diesel delivers reliable power, low emissions, and fast response to load changes.—

Common questions

What is the power rating of the Cummins/Onan 1500DFLE?

The Cummins/Onan 1500DFLE is rated 1500 kW standby.

What engine does the Cummins/Onan 1500DFLE use?

The Cummins/Onan 1500DFLE is powered by the Cummins/Onan KTA50-G9 engine.

What fuel does the Cummins/Onan 1500DFLE use?

The Cummins/Onan 1500DFLE runs on Diesel.

What is the oil capacity of the Cummins/Onan 1500DFLE?

The Cummins/Onan KTA50-G9 engine in the Cummins/Onan 1500DFLE has an oil capacity of 120.0 liters.

Troubleshooting

53

Fault codes

CodeMeaning
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

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

Parts

46
Part #DescriptionQtySystem
0300-4623-33DFLE (600V)1Current transformer PartsGeek
0300-4623-57DFLE BR (0-480V)1Current transformer PartsGeek
121-0111Drive, Pump1Pump PartsGeek
121-0113Gasket, Pump1Gasket PartsGeek
121-0117Gasket, Hand Hole1Gasket PartsGeek
128-0108Insulation, Hose - BulkHose PartsGeek
130-5588-02Tube, Water Heater1Hose PartsGeek
130-5589-02Tube, Water Heater1Hose PartsGeek
130-5590-02Tube, Water Heater1Hose PartsGeek
130-5591-02Tube, Water Heater1Hose PartsGeek
140-2096Element, Primary (Outer)2Air filter PartsGeek
140-2097Cleaner, Air (Includes Elements)2Air filter PartsGeek FridayParts $856.89
140-2467Element, Safety (Inner)2Air filter PartsGeek
140-2501Cleaner, Air (Disposable)2Air filter PartsGeek FridayParts $152.02
140-3163Cleaner, Air (No Replaceable Element)2Air filter Amazon eBay $23.99 PartsGeek
140-3230Cleaner, Air (Includes Elements - See Ref. No. 25 and 26)2Air filter Amazon eBay $95.60 PartsGeek
159-1445Reservoir, Fuel1Fluid PartsGeek
159-1451Pump, Fuel Transfer1Pump PartsGeek
309-0649Thermostat (Opens At 110 F, Closes At 130 F)1Thermostat PartsGeek
501-0704Line, Flexible Fuel - Fuel Out1Hose PartsGeek
501-0707Line, Flexible Fuel - Fuel In1Hose PartsGeek
509-0283-01Seal, Rectangular Ring2Seal PartsGeek
509-0336Seal, O-Ring1Seal PartsGeek
509-0337Seal, O-Ring1Seal PartsGeek
121-0116Cover, Hydraulic Hole1Service part / kit PartsGeek
140-1260Fitting, Safety Filter2Service part / kit Amazon eBay $35.00 PartsGeek
140-1548Indicator, Service2Service part / kit Amazon eBay $91.60 PartsGeek
140-2098Hood, Air Inlet (Includes Mounting Clamp)2Service part / kit Amazon eBay $49.99 PartsGeek
140-2099Band, Mounting4Service part / kit Amazon eBay $19.99 PartsGeek
140-2395Tube, Air Inlet1Service part / kit PartsGeek
140-2502Band, Mounting - Air Cleaner4Service part / kit Amazon eBay $59.99 PartsGeek
140-2503Bracket, Mounting - Air Cleaner1Service part / kit PartsGeek
140-2504-01Bracket, Mounting (Right Side)1Service part / kit PartsGeek
140-2504-02Bracket, Mounting (Left Side)1Service part / kit PartsGeek
140-2508Tube, Air Inlet2Service part / kit Amazon eBay $129.95 PartsGeek
140-2509Tube, Air Inlet2Service part / kit PartsGeek
140-2515Bracket, Mounting1Service part / kit PartsGeek
140-2519Tube, Air Inlet2Service part / kit PartsGeek
140-2521Tube, Air Inlet2Service part / kit PartsGeek
140-2528Shield - Air In Heat1Service part / kit PartsGeek
333-0677-01Heater, Coolant - 4990 Watt2Service part / kit PartsGeek
333-0677-02Heater, Coolant - 6420 Watt2Service part / kit PartsGeek firsttruck $2220.00
518-0601Sealant, Thread (6 ml Tube)Service part / kit PartsGeek
525-0304Onan Green Enamel (Gallon Can)Service part / kit PartsGeek
525-0305Onan Green Enamel (12 oz. Pressurized Spray Can)Service part / kit PartsGeek
525-0306Onan Green Enamel (Quart Can)Service 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.

Available documents

Parts manual — 0960-0271 I4 201401 (Cummins/Onan)Parts manual — 960-0271 Onan DFLE Parts Manual (8-1998) (Cummins/Onan)Parts manual — Cummins-DFLB-DFLC-DFLE-generator-set-parts-manual (Cummins/Onan)

Other sets with this engine

Cummins/Onan C1500D6RCummins/Onan CP1600-6Cummins/Onan CS1900-6Cummins/Onan DFLECummins/Onan KTA50