The Garrett Supercore GXR40-64 is a genuine core assembly from Garrett’s dedicated GX-Race40 lineup, built for enthusiasts and racers who demand authentic Garrett engineering as the foundation of a serious turbocharger build. This is the real Supercore assembly behind the GXR40-64, sourced directly through Garrett’s G-XRACE program rather than an aftermarket clone or knockoff.
Specifications
- Compressor Wheel Size: 64mm
- Model: GXR40-64
- Product Type: Supercore
- Garrett P/N: 934173-5005S
Performance & Application
The GXR40-64 Supercore belongs to Garrett’s G-XRace40 family, a lineup built specifically for high-performance racing applications. As a genuine

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