The Garrett G42-1200C is a compact turbo assembly kit engineered for enthusiasts and builders demanding serious top-end power without sacrificing packaging flexibility. Its dual v-band inlet/outlet turbine housing configuration makes it a favorite for tight engine bays and custom manifold setups where precise fitment matters. This is the turbo of choice for those building toward four-figure horsepower goals with a compact, high-flow footprint.

Specifications

• Compressor Wheel Inducer: 73mm
• Compressor Wheel Exducer: 91mm
• Compressor Wheel Trim: 65
• Compressor Housing A/R: 0.90
• Compressor Inlet Connection: 4″ inlet hose connection
• Compressor Outlet Connection: 3″ outlet hose connection
• Turbine Wheel Inducer: 82mm
• Turbine Wheel Exducer: 75mm
• Turbine Wheel Trim: 84
• Turbine Housing A/R: 1.28
• Turbine Housing Configuration: V-Band Inlet / V-Band Outlet
• Bearing Type: Ball Bearing
• HP Capacity: 1200HP
• Garrett P/N: 879779-5003S

Performance & Application

The G42-1200C is built for high-output performance applications where a compact CHS (Compact Housing Solution) footprint is essential for fitment. The ball bearing design paired with the 1.28 A/R v-band turbine housing supports strong spool characteristics while enabling capacity up to 1200 horsepower. Its v-band inlet/outlet configuration streamlines installation on custom exhaust manifolds and downpipes, making it well suited for serious builds where both packaging and top-end power are priorities.

Frequently Asked Questions

What HP can the Garrett G42-1200C support?

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

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

The G42-1200C features a ball bearing design.

What is the A/R ratio of the G42-1200C turbine housing?

The turbine housing features a 1.28 A/R with a v-band inlet/outlet configuration.

What compressor inlet and outlet sizes does the G42-1200C use?

The compressor housing features a 4″ inlet and 3″ outlet hose connection, with a 0.90 A/R.

For builders who need compact packaging without compromising on serious horsepower potential, the Garrett G42-1200C delivers a proven ball bearing platform capable of supporting up to 1200HP.