Specifications
| Fuel | Diesel |
|---|---|
| Frequency | 50.0 Hz |
| Standby power | 1290 kW |
| Controller | 3100, PowerCommand 2100 |
| Oil capacity | 204.0 L |
| Phase | 1 or 3 |
| Battery voltage | 24 V |
Engine
| Oil capacity | 204.0 L |
|---|---|
| Coolant capacity | 400.0 L |
| Displacement | 50.3 L |
| Aspiration | Turbo Aftercooled |
| Rated speed | 1500 rpm |
Maintenance & consumables
for the Cummins/Onan KTA50−G8| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | 140-2501 | PartsGeek FridayParts $152.02 | |||
| Fuel filter | Fuel/Water Separator | — | find | ||
| Oil filter | — | find |
Common questions
What is the power rating of the Cummins/Onan 1290DFLE?
The Cummins/Onan 1290DFLE is rated 1290 kW standby.
What engine does the Cummins/Onan 1290DFLE use?
The Cummins/Onan 1290DFLE is powered by the Cummins/Onan KTA50−G8 engine.
What fuel does the Cummins/Onan 1290DFLE use?
The Cummins/Onan 1290DFLE runs on Diesel.
What is the oil capacity of the Cummins/Onan 1290DFLE?
The Cummins/Onan KTA50−G8 engine in the Cummins/Onan 1290DFLE has an oil capacity of 204.0 liters.
Troubleshooting
53Fault codes
| Code | Meaning |
|---|---|
| 121 | Speed Signal Lost |
| 135 | Oil Pressure Sensor High |
| 141 | Oil Pressure Sensor Low |
| 143 | Pre-Low Oil Pressure Sensor |
| 144 | Coolant Temperature Sensor High |
| 145 | Coolant Temperature Sensor Low |
| 146 | Pre-High Cool Temp |
| 151 | High Coolant Temp |
| 197 | Low Coolant Level |
| 234 | Overspeed |
| 235 | Low Coolant Level |
| 359 | Fail to Start |
| 415 | Low Oil Pressure |
| 441 | Low Battery Voltage |
| 442 | High Battery Voltage |
| 1123 | Shutdown After Battle Short |
| 1124 | Delayed Shutdown |
| 1131 | Battle Short Active |
| 1244 | Engine Normal Shutdown |
| 1311 | Customer Inputs #1 |
| 1312 | Customer Inputs #2 |
| 1317 | Customer Inputs #3 |
| 1318 | Customer Inputs #4 |
| 1334 | Crit Scaler OR |
| 1335 | Non-Crit Scaler OR |
| 1416 | Fail to Shutdown |
| 1417 | Power Down Failure |
| 1433 | Emergency Stop |
| 1434 | Remote Emergency Stop |
| 1435 | Low Coolant Temperature |
| 1438 | Fail to Crank |
| 1442 | Weak Battery |
| 1443 | Battery Failed |
| 1444 | KW Overload |
| 1445 | Short Circuit |
| 1446 | High AC Voltage |
| 1447 | Low AC Voltage |
| 1448 | Under Frequency |
| 1449 | Over Frequency |
| 1461 | Loss of Field |
| 1466 | Modem Failure |
| 1468 | Network Error |
| 1469 | Speed/Hz Match |
| 1471 | Over Current |
| 1472 | Over Current |
| 2335 | Excitation Fault |
| 2336 | Memory Error |
| 2341 | High Control Temperature |
| 2342 | Too Long in Idle |
| 2967 | Governor Fault |
| 2968 | AVR Fault |
| 2969 | LON Failure |
| 2972 | Field Overload |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
4| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 518-0601 | Sealant, Thread (6 ml Tube) | Service part / kit | PartsGeek | |
| 525-0304 | Onan Green Enamel (Gallon Can) | Service part / kit | PartsGeek | |
| 525-0305 | Onan Green Enamel (12 oz. Pressurized Spray Can) | Service part / kit | PartsGeek | |
| 525-0306 | Onan 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 — Cummins-DFLB-DFLC-DFLE-generator-set-parts-manual (Cummins/Onan)