The Garrett T3/T4E 50 trim turbocharger is built for enthusiasts who want proven journal bearing performance without unnecessary complexity. Featuring a 4″ anti-surge compressor housing paired with a T31 stage III turbine housing, this unit is engineered for street and competition builds that demand reliable power delivery. It’s a well-rounded combination for enthusiasts looking to step up their turbocharged platform with a trusted Garrett core.
Specifications
- Compressor Trim: 50 trim
- Compressor Housing: 4″ anti-surge
- Bearing Type: Journal bearing
- Turbine Housing: T31 stage III, 4-bolt discharge
- Turbine A/R Ratio: .82 A/R
- HP Capacity: 450HP
- Garrett P/N: 466159-5011S
Performance & Application
This T3/T4E 50 trim turbocharger is suited for street and competition builds where dependable journal bearing performance is a priority. The anti-surge compressor housing design helps broaden the usable operating range of the compressor map, making this turbo a strong fit for enthusiasts building a responsive yet capable power platform. With a rated capacity of 450HP, it offers a solid middle ground for drivers seeking meaningful power gains without stepping into extreme, high-boost territory.
Frequently Asked Questions
- What HP can this turbocharger support?
- This Garrett T3/T4E 50 trim turbocharger is rated to support up to 450HP.
- Is this a ball bearing or journal bearing turbo?
- This turbocharger uses a journal bearing design.
- What is the A/R ratio of the turbine housing?
- The T31 stage III turbine housing on this turbocharger has a .82 A/R ratio.
- What type of turbine housing outlet does this turbo use?
- This turbocharger features a T31 4-bolt discharge turbine housing.
For enthusiasts seeking a dependable Garrett journal bearing turbocharger with proven 50 trim compressor performance and a 450HP rating, this T3/T4E combination delivers the balance of response and capability needed for serious street and competition builds.

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