Cummins
Cummins QSK23-G5 NR2
QSK23 Series
Cummins QSK23-G5 NR2 is the EPA certification-name variant of the 23.152 L QSK23-G5 generator engine. EPA records list 746 kWm at 1800 RPM under Tier 2; the Cummins G5 rating sheet publishes 656 kWm prime and 746 kWm standby.
Overhaul & repair parts- Manufacturer files
- No datasheet
- Last updated
- 2026-07-25
- Package route
- diesel generator sets
- Standby Power · 60 Hz
- 838 kVA
- Electrical Output
- 670 kWe
- Cylinders
- L6
- Displacement
- 23.152 L
- Rated Speed
- 1,800 RPM
Power Ratings
kWm = mechanical shaft power · kWe = electrical output · kVA = kWe ÷ 0.8 pf
60 Hz1800 RPM
| kWm | kWe | kVA | |
|---|---|---|---|
| Prime Power | 656 | 592 | 740 |
| Standby Power | 746 | 670 | 838 |
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Cummins QSK23-G5 NR2 overhaul & repair parts
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Cummins QSK23-G5 NR2 generator set context
The Cummins QSK23-G5 NR2 is listed here as a diesel generator-drive engine for 60 Hz generator sets, with a headline 838 kVA / 670 kWe / standby rating. Use this page to compare the published engine output, electrical kWe/kVA ratings, emissions level, datasheet availability, and neighboring models before specifying an alternator, controller, enclosure, voltage, and compliance package.
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Technical Specifications
| Brand | Cummins |
| Model | QSK23-G5 NR2 |
| Series | QSK23 Series |
| Configuration | L6 Turbocharged Intercooled |
| Cylinders | 6 |
| Displacement | 23.152 L |
| Fuel Type | Diesel |
| Ignition Type | Compression Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | U.S. EPA Tier 2 |
| Certifications | U.S. EPA Tier 2 |
| Country of Origin | United States |
Frequently asked questions
What is the power output of the Cummins QSK23-G5 NR2?
The Cummins QSK23-G5 NR2 is rated at 838 kVA standby / 740 kVA prime at 60 Hz (1,800 rpm).
Does the QSK23-G5 NR2 run at 50 Hz or 60 Hz?
The Cummins QSK23-G5 NR2 is rated for 60 Hz (1,800 rpm).
What fuel does the Cummins QSK23-G5 NR2 use?
The Cummins QSK23-G5 NR2 is a diesel generator-set engine.
What is the displacement and cylinder configuration of the QSK23-G5 NR2?
The Cummins QSK23-G5 NR2 is an inline-6 (6-cylinder) engine with a displacement of 23.152 L.
What emissions information is listed for the QSK23-G5 NR2?
This record lists U.S. EPA Tier 2 for the Cummins QSK23-G5 NR2. Confirm the exact engine family, model year, configuration and applicable manufacturer certification documents before specifying it for a regulated project. A database label does not establish certification of a complete generator package.
What is the catalog status of the Cummins QSK23-G5 NR2?
The Cummins QSK23-G5 NR2 is marked active in this database. Confirm current production and availability with the manufacturer; catalog status is not a live supply check.