Turbo Assembly Kit, G42-1200, O/V V-Band / V-Band 1.15 A/R, Garrett P/N 879779-5008S

The Garrett G42-1200 turbo assembly kit is engineered for serious power builders chasing four-figure horsepower on big-displacement engines. Featuring a dual v-band turbine housing for maximum flow efficiency, this kit is built for enthusiasts and professional shops who demand extreme boost capability without compromise. If your build calls for massive top-end power backed by proven Garrett engineering, this is the turbo to spec.

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: 1.15
• Turbine Housing Inlet/Outlet: V-Band / V-Band
• Bearing Type: Oil-cooled ball bearing
• HP Capacity: Up to 1200HP
• Garrett P/N: 879779-5008S

Performance & Application

The G42-1200 is built for big-displacement engines targeting extreme horsepower levels, with capability up to 1200HP. Its oil-cooled ball bearing design delivers the durability and responsiveness needed to handle sustained high boost without sacrificing reliability. The dual v-band turbine housing configuration is optimized for high-flow applications, making this kit a strong choice for builders pushing past conventional power ceilings. This turbo is suited for extreme performance builds where top-end power and structural integrity under boost are non-negotiable.

Frequently Asked Questions

What HP can the Garrett G42-1200 support?

The G42-1200 is capable of supporting up to 1200HP.

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

The G42-1200 uses an oil-cooled ball bearing design.

What turbine housing A/R does the G42-1200 use?

This kit comes with a 1.15 A/R turbine housing.

What type of inlet/outlet does the turbine housing use?

The turbine housing features a v-band inlet and v-band outlet configuration.

For builders who need proven Garrett engineering capable of handling extreme boost, the G42-1200 delivers the wheel geometry, housing configuration, and bearing durability to make four-figure horsepower a reality.