The Cummins Onan DGAB generator is listed with standby output of 20 kW, 2-D Diesel fuel, 60 Hz operation, 12 V output, and I / Three phase.
Cummins Onan Generator Specifications
Generator • 2-D Diesel • 60 Hz • I / Three phase
Standby power: 20 kWVoltage options: 12 V
Key specifications
20 kW Standby power
2-D Diesel Fuel
12 V Voltage options
I / Three phase Phase
60 Hz Frequency
How the Cummins Onan DGAB compares
This compares the supplied numeric specification with Cummins Onan generators in the same broad standby-power class where enough comparable data exists.
Standby power
20 kW
3% below avg
47th percentile
Oil capacity
1.59 gal
10% below avg
38th percentile
Standby power20 kW
Low 15 kWAverage 20.7 kWHigh 26.8 kW
About 3% below the similar-output Cummins Onan average. Around the 47th percentile for this field.
Oil capacity1.59 gal
Low 0.61 galAverage 1.76 galHigh 3.12 gal
About 10% below the similar-output Cummins Onan average. Around the 38th percentile for this field.
This model Peer average
Generator information
| Manufacturer | Cummins Onan |
|---|---|
| Model | DGAB |
| Generator type | Generator |
| Fuel | 2-D Diesel |
| Frequency | 60 Hz |
Electrical output
| Standby power | 20 kW |
|---|---|
| Voltage options | 12 V |
| Phase | I / Three phase |
| Power factor | 0.8 |
Engine, cooling and controls
| Engine model | Cummins/Onan 4A2.3 |
|---|---|
| Rated engine speed | 1800 rpm |
| Engine oil capacity | 2.25 gal (8.5 L) |
| Engine coolant capacity | 4.44 gal (16.8 L) |
| Oil capacity | 1.59 gal (6 L) |
| Coolant capacity | 3.04 gal (11.5 L) |
Battery
| Battery group | 31 |
|---|---|
| Battery cranking | 530 CCA |
| Battery voltage | 12 V |
| Battery quantity | 1 |
Maintenance and service parts
| Engine oil | Interval: 250 hr |
|---|---|
| Oil filter | Part number: 51592; Interval: 200 hr; Specification: Change Fuel Filter |
| Fuel filter | Interval: 1000 hr |
| Air filter | Interval: 500 hr |
| Coolant | Interval: 1000 hr; Specification: Change coolant every 1, 000 hours or as needed. |
| Belt | Interval: 200 hr |
Disclaimer: Specifications should be verified against the official owner’s or service manual and confirmed on the Cummins North America generator website.