GM Duramax 6.6L - Silicone Intercooler Hose Kit (2004.5-2005)
GM Duramax 6.6L - Silicone Intercooler Hose Kit (2004.5-2005)
Replace your brittle, aging factory hoses with a performance-driven upgrade. This Silicone Intercooler Hose Kit is built to handle what your 2004.5â-2005 LLY Duramax throws at it—heat, pressure, and time. Whether you're daily driving, towing heavy, or tuned for performance, these hoses won’t quit when things get hot.
Key Features:
- Multi-Layer Silicone Construction: Built to endure high-heat and high-boost environments without cracking, splitting, or collapsing.
- Oil-Resistant Design: Won’t break down from oil exposure like OEM rubber hoses, keeping your charge system sealed and efficient.
- Direct Fit Replacement: Engineered to drop into place with no cutting or modification required—just bolt in and go.
- Premium T-Bolt Clamps Included: Ensures a secure, leak-free seal even under peak boost.
Why Upgrade?
Stock intercooler hoses are the weak link in your boost system. Over time, factory rubber degrades—leading to cracks, leaks, and lost power. Our silicone replacement kit offers a high-performance solution built for durability, airflow, and peace of mind. Whether you're running stock or tuned, these hoses keep your boost where it belongs: inside the pipe.
Compatibility:
- 2004.5 & 2005 GMC Sierra 2500HD/3500HD 6.6L Duramax LLY
- 2004.5 & 2005 Chevy Silverado 2500HD/3500HD 6.6L Duramax LLY
Simple Installation:
Designed for a quick, straightforward install. This kit includes all necessary clamps and fits directly in place of OEM components—no guesswork, no fabrication. Spend less time wrenching and more time driving.
Upgrade your LLY with confidence. This Silicone Intercooler Hose Kit gives your Duramax the durability, airflow, and reliability it deserves—especially when it matters most.
Hurry Up! Only 10 items left in stock!
Copy link:
Share:
Ask a question
Shipping
We strive to provide fast and reliable shipping options for all our customers. For detailed information about our shipping rates, delivery times, and policies, please visit our Shipping Page.
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.
