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K38 Cummins Engine K38-G9 Industrial Diesel Engine for Generator Set

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  • K38-G9

  • Cummins

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Cummins K38-G9 Industrial Diesel Engine: High-Density Power for Mission-Critical Generation

The Cummins K38-G9 is a high-performance, large-displacement industrial diesel engine engineered to deliver reliable, high-density prime and standby power for the most demanding applications. Part of the proven Cummins K38 series, this engine is built on a robust platform designed for continuous operation, exceptional fuel efficiency, and low life-cycle costs, making it the power source of choice for large-scale power generation projects worldwide.


Technical Specifications

Feature Specification
Engine Model Cummins K38-G9
Configuration In-line 6-Cylinder / V12 (Typical for K38 platform)
Displacement 38 Liters
Power Output 900 - 1250 kW (Prime & Standby Ratings)
Speed 1500 or 1800 RPM (for 50/60 Hz power generation)
Aspiration Turbocharged & Aftercooled
Fuel System Cummins PT or Common Rail (Platform dependent)
Governor Electronic Governor

Target Equipment & Applications

The K38-G9 is primarily designed as the core power unit for large diesel generator sets, serving facilities where power reliability is non-negotiable.

Primary Application Sectors:

  • Mission-Critical Standby & Prime Power: Provides backup or continuous power for large data centers, semiconductor fabrication plants, major hospitals, and telecommunications infrastructure.

  • Industrial Power Plants: Used in distributed energy generation, mining operations, oil & gas fields, and large manufacturing facilities that require on-site power generation.

  • Large Commercial & Institutional Complexes: Powers airports, seaports, university campuses, and large shopping centers.

  • Major Infrastructure Projects: Serves as a reliable power source for water treatment plants, railway networks, and other public utilities.

Core Technologies & Product Advantages

1. Robust Heavy-Duty Platform
Built on the legendary Cummins K-Series heavy-duty platform, the K38-G9 features a high-strength cast-iron cylinder block and head, a forged steel crankshaft, and other premium components. This robust construction is engineered to withstand continuous high-load operation, ensuring exceptional durability, long service life, and high availability.

2. Advanced Combustion & Fuel System Technology
Depending on the specific configuration, the engine utilizes advanced fuel system technology (such as the proven Cummins PT system or a modern high-pressure common rail system) to achieve precise fuel delivery and optimal combustion. This results in high power density, excellent fuel economy across the load range, and low emissions.

3. Integrated Engine & Generator Design
As an engine purpose-built for power generation, it features a fully integrated design. This includes a precise electronic governing system for superior frequency and voltage regulation (typically within ±0.25% frequency droop), comprehensive monitoring sensors, and seamless compatibility with digital control systems and synchronizing equipment for multi-unit paralleling.

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