Heavy Duty Silicone Coolant Hose Kit Fits 2006-2010 Chevy Silverado GMC Sierra 6.6L Duramax

Heavy Duty Silicone Coolant Hose Kit | 2006-2010 Chevy Silverado & GMC Sierra 6.6L Duramax

Replace your aging, failure-prone factory coolant hoses with the Mammoth Performance Heavy Duty Silicone Coolant Hose Kit—built to deliver superior durability, heat resistance, and peace of mind for your LBZ and LMM Duramax.

Stop Coolant Leaks Before They Start

The original rubber coolant hoses on your 2006-2010 6.6L Duramax degrade from years of heat cycling, pressure, and exposure to coolant chemicals. As they age, they swell, soften, and crack—leading to leaks, overheating, and the risk of being stranded. Our multi-ply silicone hoses are engineered to resist these failure modes and provide a permanent upgrade that outlasts the truck itself.

Why Choose Mammoth Performance Silicone Coolant Hoses

• Multi-Ply Silicone Construction – Reinforced with high-strength fabric layers to handle extreme temperatures, pressure, and vibration far better than OEM rubber
• Superior Heat Resistance – Engineered to withstand the high under-hood and coolant temperatures of the hard-working Duramax diesel
• Won't Crack, Swell, or Degrade – Silicone resists the breakdown that destroys factory rubber hoses over time
• Direct OEM Fit – Designed to match factory routing and connections for a precise install with no modifications
• Available in Multiple Colors – Add a clean, custom finish to your engine bay

Fitment

This kit is specifically designed for:

• 2006-2010 Chevrolet Silverado 2500/3500 6.6L Duramax
• 2006-2010 GMC Sierra 2500/3500 6.6L Duramax
• Covers LBZ (2006-2007) and LMM (2007.5-2010) engines

What's Included

• Complete set of reinforced silicone coolant hoses
• Stainless steel clamps for a secure, leak-free seal

Upgrade With Confidence

Whether you're towing heavy, putting down serious miles, or simply replacing tired factory hoses before they fail, the Mammoth Performance Silicone Coolant Hose Kit is the long-lasting, reliable solution your Duramax deserves.