The Garrett GTW3476JB is a 58mm journal bearing turbocharger built for enthusiasts who want serious power potential without stepping up to a ball bearing price point. Part of Garrett’s GTW Series, it was engineered as a performance-driven alternative to the popular 5858-size turbo, delivering strong flow characteristics at a competitive value. This is the turbo for builders chasing high horsepower with a proven, budget-conscious platform.
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
- Turbine Housing Inlet: T3 Undivided Inlet
- Turbine Housing Outlet: Welded GT 3″ V-Band Outlet
- Bearing Type: Journal Bearing
- HP Potential: 700HP potential flow
- Garrett P/N: GTW3476JB
- Also Known As: GTW5857JB
Performance & Application
The GTW3476JB is designed for builds targeting up to 700 horsepower, making it a strong fit for enthusiasts pushing serious power out of a T3-based turbo system. Its .63 A/R turbine housing and T3 undivided inlet configuration are tailored for a balance of response and top-end flow. As part of the GTW Series, this turbo delivers the performance profile of the 5858-class turbo while offering a more accessible alternative. The welded GT 3″ V-band outlet housing simplifies exhaust plumbing for turbo-back systems built around high-flow requirements.
Frequently Asked Questions
- What HP can the GTW3476JB support?
- The GTW3476JB has a 700HP potential flow rating.
- Is this a ball bearing or journal bearing turbo?
- The GTW3476JB is a 58mm journal bearing turbocharger.
- What is the A/R ratio of this turbine housing?
- This turbo comes with a .63 A/R turbine housing.
- What does GTW5857JB refer to?
- GTW5857JB is an alternate name (alias) for the Garrett GTW3476JB.
For builders seeking a high-flowing journal bearing turbo that rivals 5858-class performance without the premium cost, the GTW3476JB delivers proven Garrett engineering backed by a 700HP potential rating.
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