The Cummins/Onan QSK23 Series is a 23 L 6-cylinder turbocharged and after-cooled engine rated at 1470 rpm, producing up to 567 kW. It powers generator sets from Cummins/Onan, including the 545DQCA, 600 DQCA, 640DQCB and 720DQCC. It holds 57 L (15.1 gal) of oil and 46.2 L (12.2 gal) of coolant.
Also known as: Cummins QSK23 Series
Part of the Cummins/Onan QSK23 engine family — 3 variants share parts & fitment.
| Oil capacity | 57.0 L |
|---|---|
| Coolant capacity | 46.2 L |
| Displacement | 23.0 L |
| Cylinders | 6 |
| Aspiration | Turbocharged and After-cooled |
| Rated speed | 1470 rpm |
| Gross power | 567 kW |
| Part # | Description | Category |
|---|---|---|
| 204-009 | Acronyms and Abbreviations | other_service |
| 3822735 | Plastic bead cleaning media | other_service |
| 4021375 | QSK23 Troubleshooting and Repair Manual | other_service |
| DKE1200BHT | Litho in U.S.A. (17-10) | other_service |
| EX1200-7 | Upperstructure (continued) | other_service |
| KS-E368R | Head Office | other_service |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
The Cummins/Onan QSK23 Series engine has an oil capacity of 57.0 liters.
The Cummins/Onan QSK23 Series has a displacement of 23.0 liters with 6 cylinders.
The Cummins/Onan QSK23 Series powers 25 generator set(s), including Cummins/Onan 545DQCA, Cummins/Onan 600 DQCA, Cummins/Onan 640DQCB, Cummins/Onan 720DQCC, Cummins/Onan 750 DQCB.