The Garrett GTW3476R is a 58mm ball bearing turbocharger built for serious performance enthusiasts who demand strong flow potential without stepping up to a larger frame turbo. Engineered as part of Garrett’s GTW Series, it delivers a competitive, cost-effective alternative to the popular 5858 size turbo while maintaining excellent performance characteristics. This turbo is the right choice for builders seeking a proven ball bearing platform with a well-matched turbine housing for real-world power delivery.
Specifications
- Compressor Wheel Inducer: 58.3mm
- Compressor Wheel Exducer: 76.4mm
- Compressor Wheel Trim: 58
- Turbine Wheel Inducer: 65.0mm
- Turbine Wheel Exducer: 56.6mm
- Turbine Wheel Trim: 76
- A/R Ratio: .63
- Bearing Type: Ball Bearing
- Compressor Inlet: T3 Undivided Inlet
- Turbine Housing Outlet/Flange: Narrow T31 4 Bolt Exit
- HP Capacity: 700HP potential flow
- Garrett P/N: GTW3476R
- Also Known As: GTW5857R
Performance & Application
The GTW3476R is designed for builders looking to achieve strong power output with a ball bearing turbo that offers a competitive alternative to larger 5858-size units. With its 58mm compressor wheel and .63 A/R turbine housing, this turbo is suited for enthusiasts seeking excellent mid-range performance characteristics. The T3 undivided inlet and narrow T31 four bolt outlet turbine housing configuration make it a strong fit for performance builds targeting high horsepower goals. This GTW Series turbo delivers Garrett’s performance engineering at a competitive price point.
Frequently Asked Questions
- What HP can the GTW3476R support?
- The GTW3476R offers 700HP potential flow.
- Is the GTW3476R a ball bearing or journal bearing turbo?
- The GTW3476R is a ball bearing turbocharger.
- What is the A/R ratio of the GTW3476R?
- The GTW3476R comes with a .63 A/R turbine housing.
- What does GTW5857R refer to?
- GTW5857R is an alternate name (alias) for the Garrett GTW3476R.
For enthusiasts seeking a proven, competitively priced ball bearing turbo with strong flow potential, the GTW3476R stands out as Garrett’s engineered solution to the popular 5858 size class.




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