The Cummins/Onan YK4500 is a 4.5 kW (4.5 kVA) standby generator set powered by a Cummins/Onan MCE engine. It is available at 12 V, 60 Hz. It holds about 2.8 L (0.7 gal) of oil and 2.8 L (0.7 gal) of coolant.
API SF/CD, SAE viscosity grade per ambient temperature
2.8 L
—
250 hr
Common questions
What is the power rating of the Cummins/Onan YK4500?
The Cummins/Onan YK4500 is rated 4 kW standby (4.5 kVA).
What engine does the Cummins/Onan YK4500 use?
The Cummins/Onan YK4500 is powered by the Cummins/Onan MCE engine.
What is the oil capacity of the Cummins/Onan YK4500?
The Cummins/Onan MCE engine in the Cummins/Onan YK4500 has an oil capacity of 2.8 liters.
Troubleshooting
1
Symptoms & remedies
Symptom
Remedy
Engine has a number of sensors that continuously monitor it for abnormal conditions such as low oil pressure, high coolant temperature, and high exhaust temperature.
The Fault Breaker is a manual reset breaker that shuts down the engine for these conditions.
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
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.