The Garrett GTW3476JB is a 58mm journal bearing turbocharger built for enthusiasts who want serious top-end power without stepping up to a full ball bearing platform. Positioned as Garrett’s performance-oriented alternative to the popular 5858 size turbo, it delivers strong flow potential at a competitive price point. This is the turbo for builders chasing big horsepower numbers with proven GTW Series engineering behind them.
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: .82
- Turbine Inlet: T3 Undivided Inlet
- Turbine Outlet: Welded GT 3″ V-Band Outlet
- Bearing Type: Journal Bearing
- HP Capacity: 700HP potential flow
- Garrett P/N: GTW3476JB
- Also Known As: GTW5857JB
Performance & Application
The GTW3476JB is engineered for high-horsepower builds that demand strong flow capacity without the cost of a full ball bearing setup. Its journal bearing design paired with a 58 trim compressor wheel and 76 trim turbine wheel makes it a capable solution for enthusiasts looking to hit big power numbers on a budget. The T3 undivided inlet and welded GT 3″ V-band outlet configuration make it well-suited for custom manifold and exhaust setups where flexibility in fabrication matters. This turbo serves as Garrett’s performance-focused answer to the popular 5858 size platform, giving builders a proven alternative with strong flow potential.
Frequently Asked Questions
- What HP can the GTW3476JB support?
- The GTW3476JB offers 700HP potential flow.
- Is the GTW3476JB a ball bearing or journal bearing turbo?
- The GTW3476JB is a journal bearing turbocharger.
- What turbine inlet and outlet does the GTW3476JB use?
- It features a T3 Undivided Inlet and a Welded GT 3″ V-Band Outlet turbine housing.
- What is the A/R ratio of the GTW3476JB?
- The GTW3476JB comes with a .82 A/R turbine housing.
- What does GTW5857JB refer to?
- GTW5857JB is an alternate name for the Garrett GTW3476JB.
For builders who want a proven, performance-driven alternative to the 5858 platform, the GTW3476JB delivers the flow capacity and reliability to back up serious horsepower goals.
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