The Garrett GTX4202R is a large-frame, ball bearing turbocharger built for enthusiasts chasing serious top-end power without sacrificing a broad, usable powerband. Designed around a high-flowing compressor housing and an un-divided T4 turbine housing, it’s engineered for builders pushing well past four-figure horsepower goals. This is the turbo of choice for those who demand Garrett’s GTX-R ball bearing technology in a package capable of supporting extreme output.
Specifications
- Compressor Wheel Inducer: 75.8mm
- Compressor Wheel Exducer: 102.3mm
- Compressor Wheel Trim: 55
- Compressor Housing A/R: 60 A/R
- Compressor Housing Frame: GT42R Frame
- Compressor Inlet: 5″
- Compressor Outlet: V-Band, 4.5″ OD (3.5″ ID)
- Compressor Housing Feature: Built-in ported shroud (anti-surge)
- Turbine Wheel Inducer: 82mm
- Turbine Wheel Exducer: 75.1mm
- Turbine Wheel Trim: 84 trim
- Turbine Housing A/R: 1.28 A/R
- Turbine Housing Inlet: T4 Un-Divided
- Turbine Housing Outlet: 4″ V-Band
- Bearing Type: Ball Bearing
- HP Capacity: Supports over 1,100HP
- Garrett P/N: GTX4202R
Performance & Application
The GTX4202R is built for high-horsepower applications where a large-frame turbo with ball bearing responsiveness is required to move serious air. Its high-flowing compressor housing and un-divided T4 turbine inlet are matched to support output figures well beyond 1,100 horsepower. The built-in ported shroud design helps stave off compressor surge at the boundaries of the map, making this turbo suited to builders pushing aggressive boost levels and airflow demands. This is a turbo for the top-tier performance build, not a mild street upgrade.
Frequently Asked Questions
- What HP can the GTX4202R support?
- The GTX4202R supports over 1,100 horsepower.
- Is the GTX4202R a ball bearing or journal bearing turbo?
- The GTX4202R is a ball bearing turbocharger.
- What turbine housing A/R and inlet configuration does the GTX4202R use?
- It uses a 1.28 A/R turbine housing with a T4 un-divided inlet and a 4″ V-band outlet.
- What compressor inlet and outlet does the GTX4202R feature?
- The compressor housing features a 5″ inlet and a V-band outlet with a 4.5″ outer diameter ring (3.5″ ID).
For builders who need proven Garrett ball bearing performance in a large-frame package capable of supporting extreme horsepower, the GTX4202R delivers the flow, response, and durability to get there.</




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