G-drive Engine
Cummins KTA38 Generator Drive Diesel Engine (850–1475 hp)
Cummins KTA38 37.7 L 12-cylinder diesel engine, 850–1475 hp (634–1100 kW), 13 ratings for generator drive work. Each unit nameplate-verified.
Specifications
- Engine Model
- KTA38-G1 ~ G9A
- Displacement
- 37.7 L
- Cylinders & Configuration
- V12, 4-cycle
- Rated Power Range
- 634–1100 kW (850–1475 hp) @ 1500–1800 rpm
- Aspiration
- Turbocharged Aftercooled
- Applications
- Generator Drive
- Documentation
- Nameplate verification + load-test record per serial number
Overview
The Cummins KTA38 is a 37.7 L 12-cylinder Cummins diesel engine supplied in 13 factory ratings from 850 hp (634 kW) to 1475 hp (1100 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 KTA38 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: KTA38 Ratings
Each entry in this section is one rating of the Cummins KTA38. 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.
KTA38-G1
KTA38-G1 — rated 634 kW (850 hp) at 1500 rpm.
KTA38-G1B
KTA38-G1B — rated 634 kW (850 hp) at 1500 rpm.
KTA38-G2
KTA38-G2 — rated 664 kW (890 hp) at 1500 rpm.
KTA38-G2B
KTA38-G2B — rated 711 kW (953 hp) at 1500 rpm.
KTA38-G2E
KTA38-G2E — rated 715 kW (959 hp) at 1500 rpm.
KTA38-G2A
KTA38-G2A — rated 813 kW (1090 hp) at 1500 rpm.
KTA38-G5E
KTA38-G5E — rated 825 kW (1106 hp) at 1500 rpm.
KTA38-G5
KTA38-G5 — rated 880 kW (1180 hp) at 1500 rpm.
KTA38-G7E
KTA38-G7E — rated 935 kW (1254 hp) at 1500 rpm.
KTA38-G9E
KTA38-G9E — rated 990 kW (1328 hp) at 1500 rpm.
KTA38-G4
KTA38-G4 — rated 1007 kW (1350 hp) at 1800 rpm.
KTA38-G4B
KTA38-G4B — rated 1080 kW (1448 hp) at 1800 rpm.
KTA38-G9A
KTA38-G9A — rated 1100 kW (1475 hp) at 1500 rpm.
Applications
KTA38 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 KTA38-G9A), 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 KTA38 specification, quantity and destination port for a verified quotation and lead time.
Frequently Asked Questions
What is the power range of the KTA38?
The 13 ratings listed on this page run from 850 hp (634 kW) to 1475 hp (1100 kW), at governed speeds between 1500 and 1800 rpm.
What displacement and cylinder count does the KTA38 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 KTA38-G4B and KTA38-G9A?
KTA38-G4B is rated 1080 kW (1448 hp) at 1800 rpm, while KTA38-G9A is rated 1100 kW (1475 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 KTA38 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.
