Cummins ISB 6.7L Turbo Assembly OEM 5604188
The Cummins ISB 6.7L Turbo Assembly OEM 5604188 is a high-performance HE300VG variable geometry turbocharger (VGT) designed specifically for 2018–2021 Cummins ISB 6.7 L diesel engines. This 5604188 turbo assembly enhances airflow, improves combustion efficiency, and delivers reliable boost pressure across all operating conditions.
Built to OEM standards, this turbocharger ensures optimal engine performance while supporting emissions compliance and fuel economy improvements. It plays a critical role in increasing horsepower and maintaining engine durability in demanding applications.
Available in both new (Holset) and remanufactured configurations, the 5604188 turbo is thoroughly tested and balanced to meet or exceed factory specifications. Many units include extended warranty coverage and upgraded components for improved longevity.
Designed as a direct-fit replacement, this turbo assembly minimizes installation time and ensures seamless compatibility with factory systems.
Key Features & Benefits
- OEM 5604188 turbo assembly (HE300VG VGT design)
- Designed for Cummins ISB 6.7L (2018–2021)
- Variable Geometry Turbo (VGT) for precise airflow control
- Improves engine power and torque output
- Enhances fuel efficiency and combustion performance
- Supports emissions systems and reduces exhaust output
- Heavy-duty construction for long service life
- Direct-fit replacement for quick installation
- Available with actuator (pre-installed or optional depending on version)
Engine Compatibility
- Cummins ISB 6.7L Diesel Engine (2018–2021)
Vehicle Applications
- Ram 2500 / 3500 6.7L Cummins (2018–2021)
- Medium-duty trucks (Freightliner, International, etc.)
- Commercial fleets and logistics vehicles
- Industrial and construction equipment
Additional Information
- Part Number: 5604188
- Turbo Model: HE300VG (VGT)
- Condition: New / Remanufactured
- Cross Reference: 5354476, 5354495, 5354552, 5355647, 5501360, 5601437, 5604945, 5605001, 5640309, 5640432, 6411490
- Application Type: On-Highway / Off-Highway / Industrial
- Warranty: Typically up to 1 year or 1 million miles (varies by supplier)
Frequently Asked Questions
1. What is the 5604188 turbo?
The 5604188 is an OEM HE300VG turbocharger designed for Cummins ISB 6.7L engines (2018–2021), featuring advanced variable geometry technology.
2. Is this turbo a direct replacement?
Yes, it is designed as a direct bolt-on replacement for compatible Cummins ISB 6.7L engines.
3. Does it include an actuator?
Some versions include a pre-installed actuator, while others may require a separate actuator or calibration.
4. What are the benefits of a VGT turbo?
VGT turbos reduce lag, improve throttle response, and optimize airflow for better fuel efficiency and emissions control.
5. What are signs of a failing turbo?
Common signs include power loss, excessive smoke, whining noise, and reduced fuel efficiency.




