Built for turbo builders demanding maximum airflow from their large frame Garrett platform, this compressor housing is engineered specifically for the GT4294 family. Whether you’re running a ball bearing or journal bearing core, this housing delivers the high-flow architecture serious power seekers require, with a V-band outlet configuration that simplifies plumbing without sacrificing performance.
Specifications
- Compressor Wheel Size: 94mm
- Compressor Wheel Trim: 56
- Compressor Housing A/R: .60
- Frame Size: Large frame (high flowing style)
- Compressor Inlet Size: 5″
- Compressor Outlet: V-band, 4.1875″ RING OD, 3.5″ tube
- Bearing Compatibility: Ball bearing and journal bearing versions of GT4294
- Special Feature: Cast-in ported shroud (anti-surge) on inlet
- Garrett P/N: 737942-0011
Performance & Application
This housing is purpose-built for the GT42R/GT4294R/GT4294 turbo family, making it the ideal choice for builds already running or upgrading to this large frame platform. The cast-in ported shroud design combats compressor surge, extending the usable range of the map and improving driveability under transient throttle conditions. With its high-flowing 5″ inlet, this housing is designed for enthusiasts pushing serious airflow demands who need a compressor housing that won’t become the bottleneck in their build. The V-band outlet configuration streamlines integration into modern turbo systems, though a v-band flange/adapter set is available separately for those needing to convert to a hose connection.
Compatibility & Fitment
- Garrett GT42R
- Garrett GT4294R
- Garrett GT4294
- Compatible with both ball bearing and journal bearing versions of the GT4294
Frequently Asked Questions
- What is the A/R ratio of this compressor housing?
- This compressor housing features a .60 A/R ratio.
- What compressor wheel size and trim does this housing use?
- This housing is designed around a 94mm compressor wheel with a 56 trim.
- Is this housing compatible with both ball bearing and journal bearing turbos?
- Yes, this compressor housing is compatible with both ball bearing and journal bearing versions of the Garrett GT4294.
- What turbos is this compressor housing compatible with?
- This housing is compatible with the GT42R, GT4294R, and GT4294 turbochargers.
- What outlet configuration does this housing have?
- This housing features a V-band outlet with a 4.1875″ RING OD and 3.5″ tube. A v-band flange/adapter set is available separately to convert to a hose connection.
For builders running the GT4294 platform who need uncompromising airflow and surge resistance, this large frame compressor housing delivers the flow characteristics and V-band convenience your build demands.

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