G-drive Engine
Cummins QSK38 Generator Drive Diesel Engine (881–1876 hp)
Cummins QSK38 37.7 L 12-cylinder diesel engine, 881–1876 hp (657–1399 kW), 15 ratings for generator drive work. Each unit nameplate-verified.
Specifications
- Engine Model
- QSK38-G8 ~ G32
- Displacement
- 37.7 L
- Cylinders & Configuration
- V12, 4-cycle
- Rated Power Range
- 657–1399 kW (881–1876 hp) @ 1500–1800 rpm
- Aspiration
- Turbocharged Aftercooled
- Applications
- Generator Drive
- Documentation
- Nameplate verification + load-test record per serial number
Overview
The Cummins QSK38 is a 37.7 L 12-cylinder Cummins diesel engine supplied in 15 factory ratings from 881 hp (657 kW) to 1876 hp (1399 kW). Every rating listed on this page is a complete engine for generator drive duty, not a generator set, and each unit ships with its serial number recorded against the specification sheet that applies to it.
Ratings in this family differ in rated speed, peak torque and emissions tier rather than in displacement or cylinder count, so the choice between them is a duty-matching question. The specifications panel and the per-rating entries on this page are generated from the same source data, so a rating quoted here can be matched directly against a delivery document.
Specifications
The specifications panel lists the family-level values that are common to every QSK38 rating, including the 37.7 L displacement and the inline 12-cylinder layout. Ratings that share displacement and cylinder count but differ in output are listed individually in the model selection section.
Model Selection: QSK38 Ratings
Each entry in this section is one rating of the Cummins QSK38. The rated power is the output at the stated speed; the peak torque figure is the value the rating develops at the lower speed shown, which is what normally decides whether a rating suits a given machine. Each rating carries a stable anchor, so a single rating can be linked or quoted directly.
QSK38-G8
QSK38-G8 — rated 657 kW (881 hp) at 1500 rpm.
QSK38-G7
QSK38-G7 — rated 705 kW (945 hp) at 1500 rpm.
QSK38-G6
QSK38-G6 — rated 791 kW (1061 hp) at 1500 rpm.
QSK38-G26
QSK38-G26 — rated 826 kW (1108 hp) at 1500 rpm.
QSK38-G1
QSK38-G1 — rated 876 kW (1175 hp) at 1500 rpm.
QSK38-G27
QSK38-G27 — rated 923 kW (1238 hp) at 1500 rpm.
QSK38-G2
QSK38-G2 — rated 989 kW (1326 hp) at 1500 rpm.
QSK38-G28
QSK38-G28 — rated 1022 kW (1371 hp) at 1500 rpm.
QSK38-G5
QSK38-G5 — rated 1107 kW (1484 hp) at 1500 rpm.
QSK38-G29
QSK38-G29 — rated 1134 kW (1521 hp) at 1500 rpm.
QSK38-G19
QSK38-G19 — rated 1183 kW (1586 hp) at 1500 rpm.
QSK38-G4
QSK38-G4 — rated 1231 kW (1651 hp) at 1800 rpm.
QSK38-G30
QSK38-G30 — rated 1239 kW (1661 hp) at 1500 rpm.
QSK38-G31
QSK38-G31 — rated 1346 kW (1805 hp) at 1500 rpm.
QSK38-G32
QSK38-G32 — rated 1399 kW (1876 hp) at 1500 rpm.
Applications
QSK38 engines in this family are normally specified for generator drive work.
Generator drive: ratings here are quoted at a fixed governed speed, and the engine is matched to the alternator frame and the prime/standby duty that the site actually needs.
Verification, Documentation and Ordering
Each engine is offered with nameplate verification + load-test record per serial number. That means the model and rating printed on the engine nameplate can be checked against the record issued for that serial number before shipment, which is the point most buyers of re-rated or re-exported engines want covered.
To receive a quotation, send the exact rating from the matrix above (for example QSK38-G32), the machine or application it will drive, the quantity, and the destination port. If the rating you need is not listed, send the model and the required output and we will confirm whether it belongs to this family or to a neighbouring one.
Buyer tip: Send your QSK38 specification, quantity and destination port for a verified quotation and lead time.
Frequently Asked Questions
What is the power range of the QSK38?
The 15 ratings listed on this page run from 881 hp (657 kW) to 1876 hp (1399 kW), at governed speeds between 1500 and 1800 rpm.
What displacement and cylinder count does the QSK38 use?
Every rating in this family shares the same 37.7 L displacement and inline 12-cylinder, 4-cycle configuration. Ratings differ in output, rated speed and emissions tier rather than in the base engine.
What is the difference between QSK38-G31 and QSK38-G32?
QSK38-G31 is rated 1346 kW (1805 hp) at 1500 rpm, while QSK38-G32 is rated 1399 kW (1876 hp) at 1500 rpm. They use the same base engine; the higher rating is the one to specify when the driven load needs the extra torque at the lower speed.
How is a QSK38 rating ordered?
Send the exact rating shown in the model selection table, the application it will drive, the quantity and the destination port. The engine is then quoted against that rating and confirmed against its nameplate and load-test record.
