GM Duramax 6.6L Silicone Intercooler Hose Kit (2004.5–2005)

Upgrade your factory intercooler hoses with this high-performance Silicone Intercooler Hose Kit designed specifically for 2004.5–2005 GM LLY Duramax 6.6L trucks. Built to withstand extreme heat, pressure, and aging, these hoses are ideal whether you’re towing heavy loads, daily driving, or running performance tunes. They deliver reliable boost sealing without cracking, leaking, or collapsing.

Key Features:

• Multi-Layer Silicone Construction: Engineered to endure high temperatures and boost pressures without damage or deformation.

• Oil-Resistant: Unlike OEM rubber hoses, these resist oil breakdown to maintain a secure, efficient charge system.

• Direct Fit Replacement: Designed to install easily with no cutting or modifications—simply bolt on and drive.

• Premium T-Bolt Clamps Included: Provides a strong, leak-free seal under even peak boost conditions.

Why Upgrade?

Factory intercooler hoses are often the weakest link in your boost system. Over time, rubber hoses crack and leak, leading to lost power and reliability issues. This silicone kit offers a durable, high-flow alternative to keep your boost sealed and your engine performing at its best—whether stock or tuned.

Compatibility:

• 2004.5 & 2005 GMC Sierra 2500HD/3500HD 6.6L Duramax LLY

• 2004.5 & 2005 Chevy Silverado 2500HD/3500HD 6.6L Duramax LLY

Installation:

Quick and straightforward install with included clamps. Designed as a direct OEM replacement with no fabrication needed. Spend less time installing and more time on the road.

🚘 Fitment

Vehicle-Specific — Fits 2004.5–2005 GM Duramax LLY 6.6L trucks.