2004.5-2005 GM 6.6L DURAMAX LLY TURBOCHARGER POWERMAX 11 BLADE BILLET COMPRESSOR WHEEL
Enhance the performance and responsiveness of your 2004.5–2005 GM 6.6L Duramax LLY with this upgraded 11-blade billet compressor wheel, engineered specifically for PowerMax turbochargers. Precision-machined from high-grade billet aluminum, this wheel is a direct-fit replacement that boosts airflow, reduces spool time, and supports higher boost levels for towing, racing, or daily driving.
Whether you're rebuilding a PowerMax GT3788VA turbo or simply want a sharper throttle response, this drop-in 11-blade wheel offers the perfect balance of efficiency and durability for your LLY Duramax.
⚠️ Fitment Notice: This compressor wheel is designed only for upgraded PowerMax GT3788VA turbos on 2004.5–2005 LLY engines. It will not fit stock factory GT3782VA turbos.
What’s Included in the Kit:
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1 × 11-Blade Billet Compressor Wheel
Features & Benefits:
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11-Blade Aero Design: Increases overall airflow and boost response
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Billet Aluminum Construction: Stronger and lighter than cast alternatives
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Improved Throttle Response: Faster spool-up, less lag under load
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Drop-In Installation: Designed for direct fit with PowerMax GT3788VA turbos
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Supports Tuned Setups: Ideal for mild to moderate performance builds
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High-Speed Balanced: Engineered for stability at high RPMs
Compatibility:
Fits the following LLY Duramax applications with PowerMax GT3788VA turbo upgrades only:
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2004.5–2005 Chevrolet Silverado 2500HD / 3500
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2004.5–2005 GMC Sierra 2500HD / 3500
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2004.5–2005 GMC Topkick / Chevrolet Kodiak with LLY engine (as applicable with PowerMax upgrade)
Turbo Fitment: PowerMax GT3788VA Turbochargers Only
Not compatible with stock GT3782VA turbochargers.
VIN Check Tip: Your LLY Duramax should show the 8th digit as “2”.
Why Upgrade to an 11-Blade Billet Wheel?
Billet compressor wheels are machined for strength and precision, offering a smoother and more efficient boost curve compared to stock cast wheels. The 11-blade design improves air delivery while maintaining reliability, making it ideal for tuned or performance-oriented LLY trucks.
Shipping Disclaimer:
✔️ We ship via USPS, UPS, and FedEx.
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✔️ Expedited shipping options are available at checkout.
✔️ Orders are processed within 1 business day (Monday–Friday).
✔️ Orders placed on weekends or holidays will be processed on the next business day.
✔️ Tracking information will be provided once the item ships.
✔️ Shipping to PO Boxes, APO/FPO may be limited based on carrier restrictions.
California Proposition 65 Warning:
This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Billet Wheel Specs:
- Blades: 11
- Tip Diameter: 92 mm
- Inducer Diameter: 63.5 mm
- Exducer Diameter: 88 mm
Big Dawg Diesel Disclaimer:
This is a race-only product. It is not legal for sale or use on pollution controlled vehicles that are driven on public streets, roads, or highways. Buyer's use or installation of this product for itself or for Buyer's customer is at Buyer's own risk. The Buyer is responsible for obeying federal, state, and local laws. Only Buyer can determine end customer's use and thus assumes any and all liability hereby waiving any and all claims against Big Dawg Diesel in the sale of this product to the maximum extent permissible by law. Make sure to abide by all local, state, and federal laws, including emissions, vehicle safety, and traffic laws. It is Buyer's responsibility to know what those laws are and how they apply to Buyer or Buyer's customer. This product is designed and intended solely for legally organized and sanctioned, closed-course, off-road competition use and is not for use on public streets, roads, or highways. This product is capable of disabling the emissions system on some vehicles. Use on public streets, roads, or highways is a violation of federal and certain state (including California) and local environmental laws.
