Specifications
| Fuel | Diesel |
|---|---|
| Controller | PCC1301 |
| Oil capacity | 26.5 L |
| Voltage options | 24 V |
| Phase | DC |
| Battery group | 2 |
| Battery cranking | 750 CCA |
| Battery voltage | 12 V |
| Battery quantity | 2 |
| Coolant capacity | 28.6 L |
| Sound level | 97.0 dBA |
| Fuel tank | 28.6 L |
Engine
| Oil capacity | 26.5 L |
|---|---|
| Coolant capacity | 28.6 L |
| Displacement | 8.8 L |
| Aspiration | Turbocharged |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the Cummins/Onan QSL9G5| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | 1000 hr | find | ||
| Fuel filter | — | 500 hr | find | ||
| Oil filter | — | 1000 hr | find | ||
| Belt | — | 1000 hr | find | ||
| Coolant | 28.6 L | — | |||
| Oil | 26.5 L | — |
Common questions
What engine does the Cummins/Onan C250 D2R use?
The Cummins/Onan C250 D2R is powered by the Cummins/Onan QSL9G5 engine.
What fuel does the Cummins/Onan C250 D2R use?
The Cummins/Onan C250 D2R runs on Diesel.
What is the oil capacity of the Cummins/Onan C250 D2R?
The Cummins/Onan QSL9G5 engine in the Cummins/Onan C250 D2R has an oil capacity of 26.5 liters.
Troubleshooting
2Fault codes
| Code | Meaning | Cause |
|---|---|---|
| 251 | Unknown J1939 Fault | Can be caused by battery disconnection/isolation without a run data save operation. |
Symptoms & remedies
| Symptom | Remedy |
|---|---|
| Flash-out of Fault Codes | 1. The diagnostic mode key switch must be in the On (I) position to flash out the fault codes. 2. In the diagnostic mode: a) With no active faults, the Warning and Stop lamps will be illuminated without flashing OR b) With active faults, the ECM will begin to flash out codes by first turning on the Warning lamp. 3. The Warning lamp will then turn off and the ECM will begin flashing the Stop lamp in sequence to represent the active fault code number. 4. As the fault code is flashed, short pauses will occur to indicate completion of each digit. The Warning lamp will illuminate to indicate the beginning of a fault code. 5. The ECM will continue to flash a fault until the operator uses the Fault increment (↑) or decrement (↓) rocker switch to change to a new fault. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
5| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 4021518 | Alternator Manual | Alternator | buy | |
| PI144D1 | Alternator Model | 1 | Alternator | buy |
| UC274C | Alternator Model | 1 | Alternator | buy |
| UC274K | Alternator Model | 1 | Alternator | buy |
| V2403-M-E3BG | Engine Model | 1 | Service 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
Installation manualOperator's manualParts manual