The Garrett TB2539 CHRA delivers a ball-bearing core engineered for enthusiasts who demand consistent performance under sustained high-boost conditions. Built with a watercooled center section, this cartridge is the choice for street and competition builds where thermal management and long-term reliability at elevated spool speeds are non-negotiable. It’s a precision core for tuners who need dependable, repeatable performance run after run.
Specifications
- Compressor Wheel: 25mm
- Turbine Wheel: 39mm
- Bearing Type: Ball-bearing
- Center Section Cooling: Watercooled
- Garrett P/N: 431876-5065S
- Also Known As: GT2X Rev. 2.0 Watercooled
Performance & Application
This CHRA is designed for builds requiring improved thermal management and reliability at elevated spool speeds, making it well suited to both street and competition applications. The ball-bearing design supports quicker response and more consistent spool characteristics compared to journal-bearing alternatives, while the watercooled center section helps maintain stable operating temperatures during sustained high-boost use. Enthusiasts pushing their setups hard and often will benefit most from the added durability this configuration provides.
Frequently Asked Questions
- Is the Garrett TB2539 a ball bearing or journal bearing CHRA?
- The TB2539 is a ball-bearing CHRA, designed for improved response and reliability at elevated spool speeds.
- What is the compressor and turbine wheel size on the TB2539?
- The TB2539 features a 25mm compressor wheel and a 39mm turbine wheel.
- Does the TB2539 use a watercooled center section?
- Yes, the TB2539 features a watercooled center section for sustained high-boost applications requiring improved thermal management.
- What does GT2X Rev. 2.0 Watercooled refer to?
- GT2X Rev. 2.0 Watercooled is an alternate name for the Garrett TB2539 CHRA.
For builds demanding proven thermal stability and consistent high-boost performance, the Garrett TB2539 CHRA delivers the ball-bearing reliability serious enthusiasts require.

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