The Garrett G42-1200 turbo assembly kit is engineered for serious performance builders chasing extreme boost and massive horsepower ceilings. Paired with a T4 divided turbine housing, this configuration is built for enthusiasts who demand a turbocharger capable of handling high-output applications without compromise. It’s the choice for those building toward the top of the G42 platform’s performance envelope.

Specifications

• Compressor Wheel Inducer: 73mm
• Compressor Wheel Exducer: 91mm
• Compressor Wheel Trim: 65
• Compressor Housing A/R: 0.85
• Turbine Wheel Inducer: 82mm
• Turbine Wheel Exducer: 75mm
• Turbine Wheel Trim: 84
• Turbine Housing A/R: 1.01
• Turbine Housing Flange: T4 Divided
• Bearing Type: Ball Bearing
• HP Capacity: Up to 1200HP
• Garrett P/N: 879779-5010S

Performance & Application

This G42-1200 configuration is built for high-horsepower platforms where extreme boost and top-end power are the priority. The ball bearing core delivers the responsiveness demanded by serious performance applications, while the T4 divided turbine housing supports pulse energy management for builds pushing toward the upper limits of this turbo’s capability. With capacity up to 1200HP, this unit is suited for aggressive, high-output engine builds rather than mild street applications. It represents a serious step up for enthusiasts building toward maximum power from the G42 platform.

Frequently Asked Questions

What HP can the Garrett G42-1200 support?

This turbo assembly kit is capable of supporting up to 1200HP.

Is the G42-1200 a ball bearing or journal bearing turbo?

It features ball bearing construction, built for extreme boost applications.

What is the turbine housing A/R ratio and flange type?

This kit uses a 1.01 A/R T4 divided turbine housing.

What is the compressor housing A/R ratio?

The compressor housing A/R is 0.85.

For builders demanding a Garrett turbocharger engineered to handle extreme boost and up to 1200HP, this G42-1200 assembly kit with T4 divided housing delivers the performance foundation to get there.