GM Duramax - Replacement Turbocharger (2001-2022)
Type: Turbocharger
Restore Duramax power and reliability. Bring your GM Duramax back to peak performance with a direct-fit replacement turbocharger engineered to resolve common boost and reliability issues. Designed for heavy towing, daily driving, and performance use, these turbos deliver consistent boost, dependable operation, and long-term engine efficiency.
A failing turbo doesn’t just reduce performance—it can put your entire Duramax engine at risk. These vehicle-specific replacement turbochargers are built to restore proper boost control, improve drivability, and protect engine health. Each unit is designed for a precise fit based on engine generation, minimizing installation guesswork and downtime.
Key Benefits
- Consistent Boost Performance – Resolves weak, delayed, or failing turbo response for smooth and reliable power delivery.
- Improved Engine Efficiency – Helps maintain optimal performance under towing, highway, or loaded driving conditions.
- Reduced Oil Consumption – Addresses worn seals that can lead to excessive oil use and performance loss.
- Built for Real-World Use – Designed to handle the demands of work trucks and daily drivers alike.
Vehicle Fitment & Variants
| Vehicle Compatibility | OEM Part # | Variant | SKU |
|---|---|---|---|
| 6.6L Duramax LB7 (2001–2004) | ST01-RH6-060 | 6.6L LB7 (2001–2004) | EP-T-GM-01-OE |
| 6.6L Duramax LLY / LBZ / LMM (2003–2010) | ST01-LMM-66L | GT3788BLVA – LLY / LBZ / LMM | EP-T-GM-03-B |
| 6.6L Duramax LML (2011–2016) | ST01-D66-LML | 6.6L LML (2011–2016) | EP-T-GM-11-OE |
| 6.6L Duramax L5P (2017–2022) | ST01-L5P-985 | Billet Wheel L5P | EP-T-GM-17-B |
Why This Upgrade Matters
A weak or failing turbo doesn’t just rob your Duramax of power—it can lead to oil control issues, inconsistent boost, and costly engine damage. Replacing it with a properly matched, high-quality turbocharger restores confidence, performance, and long-term reliability so your truck continues to perform the way it was designed to.
What’s Included
- Direct-fit turbocharger assembly (variant as selected)
- Model-specific components as required
Important Notes:
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While we ship with all required USMCA/CUSMA paperwork, U.S. Customs or carriers may still apply duties or fees at delivery. For details, see U.S. Customs & Border Protection
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Return Policies
Your satisfaction is important to us. If you wish to return an item or request a refund, please review the terms and conditions outlined in our Returns Policy.
Important Notices
- Off‑Road Use Only
Products sold by JS Speed are intended for off‑road use and may be illegal on public roads where emissions or pollution‑control laws apply. - Check Local Laws
Before purchasing or installing, verify all applicable local, state/provincial, and federal regulations to ensure the modification is legal in your area. - Professional Installation Recommended
These parts should be installed by qualified professional mechanics. Improper installation can cause performance issues or vehicle damage. Unless a product page explicitly states otherwise, installation instructions are not included. Components are designed for users with solid mechanical knowledge, and minor adjustments or modifications may be required for proper fitment. Returns or refunds cannot be accepted due to difficulty completing an installation or the absence of instructions. - Warranty Impact
Use of these parts may void your vehicle’s factory warranty. Confirm with your vehicle manufacturer before purchase and installation. - Limitation of Liability
JS Speed is not responsible for damage, failures, or issues arising from the use or installation of these products. - Product Images
Images are for illustration only and may differ from the actual product due to manufacturer updates or improvements. - No Performance Guarantees
While these products are designed to enhance performance, JS Speed does not guarantee specific performance results.
