PPE Intercooler Piping Silicone Hose Kit (2004.5-2005 GM 6.6L Duramax LLY) - (115910405
Overview
The PPE Intercooler Piping Silicone Hose Kit is built to handle the demanding boost and temperature conditions of the 2004.5-2005 GM 6.6L Duramax LLY. Designed as a high-strength upgrade over aging factory rubber hoses, this kit delivers improved durability, reliability, and long-term performance.
Heavy-Duty 5-Ply Construction
Each hose features a 5-ply, 6mm wall design reinforced with Nomex fibers for exceptional strength and resistance to deformation. The fluorocarbon lining provides excellent lubricity and protects against oil, fuel, and chemical exposure, ensuring consistent performance under high-boost conditions.
High Pressure & Temperature Capability
Engineered for demanding applications, these hoses support a working pressure of 70 psi and a burst pressure of 207 psi. They remain stable across a wide temperature range from -76°F to +437°F, making them ideal for towing, racing, and heavy-use environments.
Built for Longevity
PPE silicone hoses outperform traditional rubber by offering better flow, improved flexibility, and increased resistance to UV exposure and ozone. Whether your LLY is a daily driver or a competition truck, these hoses are designed to withstand rapid pressure changes and extreme operating conditions.
Key Features
- Working pressure: 70 psi (4.8 BAR)
- Burst pressure: 207 psi (14.3 BAR)
- 5-ply, 6mm wall thickness for maximum durability
- Nomex-reinforced for high-boost strength
- Fluorocarbon lining for chemical and oil resistance
- UV and ozone resistant for long service life
- Wide operating temperature range: -76°F to +437°F
- Ideal for towing, racing, and daily performance
Note: Due to the 6mm wall thickness, hose clamps must be 1/2 inch larger than the hose ID for proper fit.
Application
- 2005 GMC Sierra 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2005 GMC Sierra 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2005 Chevrolet Silverado 3500HD 6.6L V8 Turbo Diesel (Duramax)
- 2005 Chevrolet Silverado 2500HD 6.6L V8 Turbo Diesel (Duramax)
- 2004 GMC Sierra 3500HD LLY 6.6L V8 Turbo Diesel (Duramax)
- 2004 GMC Sierra 2500HD LLY 6.6L V8 Turbo Diesel (Duramax)
- 2004 Chevrolet Silverado 3500HD LLY 6.6L V8 Turbo Diesel (Duramax)
- 2004 Chevrolet Silverado 2500HD LLY 6.6L V8 Turbo Diesel (Duramax)
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

