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 2004.5-2005 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.
Shipping Policy at Tuner Depot
At Tuner Depot, we understand the importance of timely delivery for your performance parts. We're committed to ensuring a seamless shipping experience, striving to dispatch your orders with utmost efficiency and speed.
Our Shipping Policy: Our aim is to dispatch all orders within two business days, providing you with a quick and efficient processing time. However, unforeseen circumstances beyond our control may occasionally impact shipping times.
Factors Affecting Shipping:
- Weather Conditions: Adverse weather conditions such as rain, snow, or sleet may affect delivery timelines. We will make every effort to minimize any delays.
- Holiday Periods: Please note that our shipping center will be closed during holidays. We will resume shipping promptly on the next business day. Allow for potential delays during peak seasons, but rest assured, we will keep you informed every step of the way.
- Staff Availability: Unforeseen circumstances can occasionally affect our staffing levels, possibly leading to minor delays. We are committed to swiftly resolving any issues to maintain our high standards of service.
We genuinely appreciate your understanding and patience during any unexpected obstacles. Be assured that we will utilize every resource available to deliver your performance parts promptly.
Items Eligible for Return
These items can be returned within 30 days of the purchase date, provided they are unopened, unused, and in their original packaging:
- Tuning devices – for example, an unopened/unused Mini Maxx V1/V2 or blank EFI Live Device
- Cables and device accessories – for example, an unopened/unused switch, bypass cable, universal pyrometer & docking station
Final Sale / Non-Refundable Items
The following items are final sale and cannot be returned:
- Custom tuning – including additional tune files purchased separately or custom tuning purchased with a device
- Exhausts and race pipes – this also includes downpipes purchased separately from an exhaust or race pipe
- EGR kits
Manufacturer Warranty
All items we sell include a 90-day manufacturer warranty.
If an item is being returned due to a manufacturer defect, it may be returned for a full refund, exchange, or replacement with a similar item of equal or lesser value.
For eligible items being returned for any other reason, the same options apply: full refund, exchange, or replacement with a similar item of equal or lesser value, provided the item meets the return requirements above.
Return Process
All returns must be approved by our team before being sent back. We will provide a valid RMA number and prepaid return label for the return.
Please do not send any items back without an approved RMA and the return label provided by us, as returns sent without these will not be accepted or processed.
Off-Road Use Only
These products are intended for off-road, race, and competition use only and may not be legal for use on public highways where emissions laws apply. Check your local and state regulations before purchase.
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