Specifications
| Fuel | Diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 750 kW |
| Standby kVA | 938 |
| Prime power | 680 kW |
| Emissions | EPA NSPS Stationary Emergency Tier 2 |
| Controller | PowerCommand |
| Oil capacity | 102.0 L |
| Voltage options | 380 V, 480 V, 220/380 V, 600 V, 190 V, 208/416 V, 400 V, 416 V |
| Phase | A (U), B (V), C (W) |
| Battery cranking | 1400 CCA |
| Coolant capacity | 109.5 L |
| Max ambient | 50 °C |
| Dimensions (L×W×H) | 4395×1855×2065 mm |
| Dry weight | 6075 kg |
| Wet weight | 6337 kg |
Engine
| Oil capacity | 102.0 L |
|---|---|
| Coolant capacity | 109.5 L |
| Displacement | 23.15 L |
| Aspiration | Turbocharged and low temperature after-cooled |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the Cummins/Onan QSK23-G7 NR2| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | (1) primary element AF25544; (1) secondary element AF25545 | — | 1000 hr | find | |
| Fuel filter | (1) primary element AF25544; (1) secondary element AF25545, (2) Cummins Filtration FS1006 | — | 200 hr | find | |
| Oil filter | (2) Cummins Filtration LF9325 | LF9325 | PartsGeek kuduparts $74.00 | ||
| Belt | Steel, flanged; Stainless steel flex, NPT | — | 15000 hr | find | |
| Coolant | Antifreeze 50/50 (Ethylene glycol) | — | 24000 hr | ||
| Coolant filter | (1) Cummins Filtration WF2076 | — | find | ||
| Oil | Oil pressure range at rated: 50-65 PSI (345-448 kPa) | 54.8 | — | 250 hr |
Common questions
What is the power rating of the Cummins/Onan DQCB?
The Cummins/Onan DQCB is rated 750 kW standby (938.0 kVA).
What engine does the Cummins/Onan DQCB use?
The Cummins/Onan DQCB is powered by the Cummins/Onan QSK23-G7 NR2 engine.
What fuel does the Cummins/Onan DQCB use?
The Cummins/Onan DQCB runs on Diesel.
What is the oil capacity of the Cummins/Onan DQCB?
The Cummins/Onan QSK23-G7 NR2 engine in the Cummins/Onan DQCB has an oil capacity of 102.0 liters.
Parts
14| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 140-1548 | Indicator, Service (Air Cleaner restriction indicator) | 1 | Air filter | Amazon eBay $91.60 PartsGeek |
| 501-0876 | Line, Fuel Cooler Return (Bearward Cooling System, not shown) | 1 | Hose | PartsGeek |
| 501-0877 | Line, Fuel Supply (Engine Accessories group) | 1 | Hose | PartsGeek |
| 501-0892 | Line, Fuel Cooler Supply (Bearward Cooling System, not shown) | 1 | Hose | PartsGeek |
| 503-1675 | Hose, Reducer (Air Cleaner group) | 1 | Hose | PartsGeek |
| 503-2754-01 | Hose, Oil (Engine Accessories group) | 1 | Hose | PartsGeek |
| A053A190 | Hose, Oil (Valve group) | 1 | Hose | PartsGeek |
| A055E534 | Switch, Level (low coolant level warning) | 1 | Sensor | PartsGeek |
| A059Z452 | Seal, O Ring (Valve group) | 1 | Seal | PartsGeek |
| AF2559300 | Air Cleaner replacement element (Nelson), for Air Cleaner Housing 140-3737 | Air filter | Amazon eBay PartsGeek | |
| 204-009 | Acronyms and Abbreviations | Service part / kit | PartsGeek | |
| 3822735 | Plastic bead cleaning media | Service part / kit | PartsGeek | |
| 4021375 | QSK23 Troubleshooting and Repair Manual | 1 | Service part / kit | PartsGeek |
| KS-E368R | Head Office | 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.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | |||
| Prime | 25% | 56.8 | 15.0 |
| Prime | 50% | 94.6 | 25.0 |
| Prime | 75% | 138.2 | 36.5 |
| Prime | 100% | 181.7 | 48.0 |
| Standby | |||
| Standby | 25% | 60.6 | 16.0 |
| Standby | 50% | 106.0 | 28.0 |
| Standby | 75% | 151.4 | 40.0 |
| Standby | 100% | 193.1 | 51.0 |
Available documents
Spec sheet — 0057984Spec sheet — 0069812Spec sheet — Cummins-750-kW-DQCB QSK23 (Cummins/Onan)Spec sheet — s-1551-DC60 (Cummins/Onan)Spec sheet — s-1551 (Cummins/Onan)Parts manual — 0961-0204 I17 201605 (Cummins/Onan)