The Garrett GT3794VA PowerMax is a Stage 1 variable-nozzle (AVNT) turbocharger upgrade for the 2004.5-2009 GM 6.6L Duramax LLY, LBZ, and LMM. It drops onto the factory mounting pedestal and retains the factory electronics and exhaust connections, stepping up to a larger 65mm inducer compressor wheel to support up to 590 HP with supporting fuel and tuning.
| Type | VNT diesel turbocharger (PowerMax Stage 1) |
| Model | GT3794VA (AVNT) |
| Application | 2004.5-2009 GM 6.6L Duramax (LLY, LBZ, LMM) |
| Bearing | Journal bearing |
| Compressor Wheel | 65mm inducer |
| Power Rating | Up to 590 HP (with fueling and tuning) |
| Included | Turbocharger, adapter cable, installation instructions |
| Emissions | Non-CARB (off-road use only) |
| Part Number | 773540-5001S |
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