Garrett GTX4202R – 76mm Ball Bearing – 1.15 AR T4 Divided Turbine Housing

The Garrett GTX4202R is a large-frame, ball bearing turbocharger built for serious high-horsepower applications where rapid response and massive top-end airflow both matter. Its ported shroud compressor housing and T4 divided turbine housing make it a strong choice for enthusiasts and race builders demanding uncompromised performance from a big-frame GTX-series turbo. This is the turbo for builds that need to support well over four-digit horsepower without sacrificing drivability.

Specifications

• Compressor Wheel Inducer: 75.8mm
• Compressor Wheel Exducer: 102.3mm
• Compressor Wheel Trim: 55
• Compressor Housing: 60 A/R, GT42R Frame, 5″ Inlet, V-Band 4.5″ OD (3.5″ ID) Outlet
• Turbine Wheel Inducer: 82mm
• Turbine Wheel Exducer: 75.1mm
• Turbine Wheel Trim: 84 trim
• Turbine Housing: 1.15 A/R, T4 Divided Inlet, 4″ V-Band Outlet
• Bearing Type: Ball Bearing
• HP Capacity: Supports over 1,100HP

Performance & Application

The GTX4202R is engineered for large-displacement, high-boost engine builds that need to move serious air while maintaining a broad, usable powerband. Its ported shroud compressor housing design helps extend the compressor map for improved anti-surge characteristics, giving tuners more flexibility at both ends of the rev range. The T4 divided turbine housing improves exhaust pulse separation for stronger scavenging under load. This turbocharger is suited to builds targeting well over 1,100 horsepower where top-end flow and ball bearing response are priorities.

Frequently Asked Questions

What HP can the GTX4202R support?

The GTX4202R supports over 1,100HP.

Is this a ball bearing or journal bearing turbo?

The GTX4202R is a ball bearing turbocharger.

What is the A/R ratio of the turbine housing?

The turbine housing has a 1.15 A/R ratio with a T4 divided inlet and 4″ V-Band outlet.

What compressor inlet and outlet sizing does the GTX4202R use?

The compressor housing features a 5″ inlet and a V-Band outlet with a 4.5″ outer diameter ring (3.5″ tube/ID).

For enthusiasts building toward serious four-digit horsepower goals, the GTX4202R delivers the combination of ball bearing response, high-flow compressor design, and divided-pulse turbine housing needed to get there.