Turbocharger, Garrett T3/T4E, Journal Bearing, 57 Trim, 2.75″, T31 .48 A/R vband exit

The Garrett T3/T4E Journal Bearing 57 Trim turbocharger is built for enthusiasts who want a proven hybrid combination capable of serious power without stepping up to a full ball bearing setup. This turbo pairs a responsive 57 trim compressor wheel with a T31 stage III v-band turbine housing, making it a popular choice for builders seeking a reliable, high-output journal bearing solution. Backed by Garrett engineering, it’s a trusted foundation for street and performance builds alike.

Specifications

• Compressor Trim: 57 Trim
• Compressor Inlet: 2.75″
• Bearing Type: Journal Bearing
• Turbine Housing: T31 .48 A/R, Stage III
• Turbine Discharge: V-band exit
• HP Capacity: Up to 475 HP
• Garrett P/N: 466159-5003S

Performance & Application

This T3/T4E 57 trim combo is engineered for builders who want strong mid-range response paired with the ability to support high horsepower goals. The journal bearing design offers a durable, cost-effective platform while the T31 stage III v-band turbine housing provides efficient exhaust flow and simplified downpipe integration. It’s well suited for performance builds targeting significant power gains without sacrificing everyday drivability. This configuration is a favorite among tuners building high-output street and performance applications.

Frequently Asked Questions

What HP can this Garrett 57 trim turbo support?

This turbocharger is capable of supporting up to 475 HP.

Is this a ball bearing or journal bearing turbo?

This turbocharger uses journal bearing construction.

What turbine A/R ratio does this turbo use?

It comes standard with a T31 .48 A/R stage III v-band discharge turbine housing. Optional .63 A/R and .82 A/R turbine housings are also available.

What size is the compressor inlet?

The compressor housing features a 2.75″ inlet.

For builders who need a dependable journal bearing turbo capable of real horsepower with flexible turbine A/R options, this Garrett T3/T4E 57 trim combo delivers a proven, performance-ready solution.