The Garrett G-SERIES G45 1125 CHRA represents the core of a high-output turbocharger build, engineered for enthusiasts and tuners who demand precise boost control without sacrificing top-end capability. Built around Garrett’s compact 45mm wheel architecture, this CHRA is the right choice for builders seeking a dual ball bearing foundation that balances quick spool with serious power potential. It’s designed for those building or upgrading a turbocharged platform that requires both efficient mid-range response and scalable high-horsepower output.
Specifications
- Compressor Wheel Size: 45mm
- Turbine Wheel Size: 45mm
- Bearing Type: Dual Ball Bearing
- HP Capacity: 1125 HP
- Garrett P/N: 860779-5016S
- Also Known As: G45-1125
Performance & Application
This CHRA is built for modern turbocharged platforms that require efficient mid-range spool characteristics paired with reliable performance scaling. The dual ball bearing design delivers responsive boost delivery, making it well suited for builds where throttle response and predictable power delivery matter as much as outright output. With an HP rating of 1125, this core is positioned for serious performance builds that need headroom to grow without switching hardware. It’s an ideal foundation for enthusiasts assembling a custom G45-based turbocharger setup.
Frequently Asked Questions
- What HP can the G45 1125 CHRA support?
- This CHRA is rated to support up to 1125 HP.
- Is this a ball bearing or journal bearing design?
- The G45 1125 CHRA uses a dual ball bearing design for responsive boost delivery.
- What size are the compressor and turbine wheels?
- The unit features 45mm compressor and turbine wheels.
- What does G45-1125 refer to?
- G45-1125 is the model designation for this Garrett G-SERIES CHRA, corresponding to Garrett P/N 860779-5016S.
For builders who need a compact, high-capacity core with proven dual ball bearing performance, the Garrett G45 1125 CHRA delivers the responsiveness and scalability required for serious turbocharged applications.

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