CHRA Garrett GTX3076R – Gen1

The Garrett GTX3076R Gen1 CHRA is the heart of one of the most proven ball bearing turbocharger platforms in the performance world, built for enthusiasts who demand quick spool without sacrificing top-end power. This center housing rotating assembly is engineered for serious street and race applications where responsiveness and a broad, usable powerband matter. It’s the trusted core for builders looking to replace or rebuild a GTX3076R-based turbo with genuine Garrett engineering.

Specifications

• Compressor Wheel: 76mm
• Turbine Housing A/R: 0.82
• Bearing Type: Ball Bearing
• HP Capacity: 400+ hp
• Garrett P/N: 700177-5042S
• Alternate P/N: 836042-5003S
• Also Known As: GTX3076R

Performance & Application

This CHRA is built around GTX3076R geometry, delivering responsive mid-range spool-up that performance builders have relied on for years. The ball bearing design allows the turbo to build boost quickly while maintaining strong, peak performance across a broad RPM band rather than tapering off early. It’s suited for applications targeting 400+ horsepower where drivability and top-end pull both matter. Whether used in a fresh build or a rebuild of an existing GTX3076R turbo, this CHRA restores that signature blend of quick response and sustained power delivery.

Frequently Asked Questions

What HP can the GTX3076R CHRA support?

This CHRA is rated to deliver boost for 400+ hp applications.

Is this a ball bearing or journal bearing CHRA?

This is a ball bearing CHRA, which contributes to its responsive mid-range spool-up characteristics.

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

The turbine housing on this CHRA uses a 0.82 A/R ratio.

What turbo part numbers is this CHRA compatible with?

This CHRA is compatible with Garrett turbo part numbers 700177-5042S and 836042-5003S.

For builders who need a genuine Garrett ball bearing core that delivers both quick spool and sustained top-end power, this GTX3076R Gen1 CHRA is the proven foundation for a 400+ hp build.