Specifications
| Fuel | Gasoline |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 3500 kW |
| Alternator | Revolving armature type generator |
| Voltage options | 120/240 V |
| Phase | Single |
| Power factor | 1.0 |
| Battery group | SAE group TH in series |
| Battery voltage | 12-V V |
| Battery quantity | 2 |
| Dimensions (L×W×H) | 30×26×21 mm |
Maintenance & consumables
for the Cummins/Onan Manual start 4CCK| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | ||||
| Fuel filter | — | ||||
| Oil filter | — | ||||
| Battery | — | ||||
| Belt | — | ||||
| Coolant | — | ||||
| Oil | — | ||||
| Spark plug | — |
Common questions
What size generator is the Cummins/Onan 4CCK?
The Cummins/Onan 4CCK is rated 3500 kW standby.
What engine does the Cummins/Onan 4CCK use?
The Cummins/Onan 4CCK is powered by the Cummins/Onan Manual start 4CCK engine.
What kind of fuel does the Cummins/Onan 4CCK run on?
The Cummins/Onan 4CCK runs on Gasoline.
What alternator comes on the Cummins/Onan 4CCK?
The Cummins/Onan 4CCK uses a Revolving armature type generator alternator.
Troubleshooting
2Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Engine runs unevenly at half or full load | Faulty carburetion | Adjust the main adjusting needle while the engine is running at normal operating temperature and with almost a full load connected to the engine |
| Engine develops a hunting condition (alternate increase and decrease of engine speed) | Try correcting by opening the main adjusting needle (early models only) a little |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Repair guides
5Step-by-step procedures compiled from the Cummins/Onan service manual for this model.
Parts
4| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 1-7/64 | New style, thin, open-face seal dimension | Seal | buy | |
| 525P137 | Onan Green, Spray can | 1 | Service part / kit | Amazon eBay |
| 98-1100C | Onan Green, spray can | 1 | Service part / kit | Amazon eBay |
| N2Z01C | PANEL N° 30151265 | 202 | Service part / kit | Amazon 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.
Available documents
Parts manual — 001-Onan Basic Genset Specs 0 to 250KW (Cummins/Onan)Service manual — 927-0500 Onan CCK (spec A-K) Genset Service manual (06-1971) (Cummins/Onan)