Silicone Hose Kit for Chevrolet Silverado (2011-2015) 6.6L

High-Temp Reinforced Silicone Hose Kit for 2011-2015 Chevrolet Silverado

What it Does: The Silicone Hose Kit replaces the prone-to-degrade factory rubber coolant lines on the 2011-2015 Silverado 2500HD/3500HD to prevent catastrophic coolant loss and maintain peak thermal dissipation under heavy towing loads.

The Stock Chevrolet Silverado Rubber Hose Degradation

Under heavy towing and sustained exhaust gas temperatures common to the LML Duramax platform, OEM EPDM rubber hoses endure continuous heat cycling and elevated cooling system pressures. Over time, engine vibration, electrochemical degradation (ECD), and oil contamination weaken factory hoses from the inside out. This leads to dry rot, structural micro-fissures, sidewall swelling, and eventual line blowouts when the GMT900 and K2XX cooling systems operate under full load.

The Engineering Solution

Engineered for maximum thermal resilience, this kit is constructed from multi-ply, high-grade polyester-reinforced silicone designed to resist temperatures ranging from -65°F to 500°F. The slick, zero-porosity inner bore improves coolant laminar flow and prevents inner-wall scaling or sediment buildup. Molded directly to factory geometry for a precise drop-in fit, these hoses eliminate collapsing under high suction and prevent ballooning under peak expansion, ensuring reliable cooling efficiency under severe-duty cycles.

Technical Specifications

Compatibility

• 2011-2014 Chevrolet Silverado 2500HD 6.6L V8 Duramax Diesel (GMT900)
• 2011-2014 Chevrolet Silverado 3500HD 6.6L V8 Duramax Diesel (GMT900)
• 2015 Chevrolet Silverado 2500HD 6.6L V8 Duramax Diesel (K2XX)
• 2015 Chevrolet Silverado 3500HD 6.6L V8 Duramax Diesel (K2XX)

Frequently Asked Questions

Does this fit the GMT900 and K2XX Silverado?
Yes, this is a direct fit for the 2011-2015 Chevrolet Silverado equipped with the LML Duramax engine.

Are standard worm-gear clamps compatible with these silicone hoses?
We recommend using lined worm-drive or T-bolt clamps to prevent shearing the silicone outer jacket during torque application.

The Chevrolet Heavy-Duty Caliber

Heavy-duty hauling demands cooling components that withstand sustained heat soak and extreme fluid pressures. Upgrading to multi-ply silicone ensures your Silverado maintains maximum cooling integrity through rugged work sites, mountain passes, and heavy-load towing.