SKU #: MAMCC661116BK MPN #: MAMCC661116BK

Mammoth Performance HD Coolant Hose Kit 11-16 GM 6.6L Duramax LML

$299.99
Get 299 points in loyalty rewards
Description
Upgrade your Duramax with the Mammoth Performance Heavy Duty Silicone Coolant Hose Kit. After years of heat cycles, coolant exposure, pressure, and vibration, factory rubber hoses can soften, swell, crack, and eventually leak, putting your cooling system and truck at risk. This complete silicone hose kit replaces the aging factory components with a more durable solution designed to handle the demands of daily driving, heavy towing, and high-mileage LML applications while giving your engine bay a clean, factory-style appearance. Built from multi-ply silicone reinforced with high-strength fabric layers, these hoses are designed to withstand the heat, pressure, and vibration of a hard-working Duramax cooling system while resisting the cracking, swelling, and deterioration that can affect traditional rubber hoses. The direct OEM-style design follows factory routing and connections for a straightforward installation without modifications, while the included stainless steel clamps provide a secure, reliable seal.

Product photos may not match the selected option. Please confirm your choice before adding to cart.

Enter your zip and we'll see if installation is available.

  • Request quotes from local installers at checkout
  • Compare options and choose the best fit for your install

Upgrade your Duramax with the Mammoth Performance Heavy Duty Silicone Coolant Hose Kit. After years of heat cycles, coolant exposure, pressure, and vibration, factory rubber hoses can soften, swell, crack, and eventually leak, putting your cooling system and truck at risk. This complete silicone hose kit replaces the aging factory components with a more durable solution designed to handle the demands of daily driving, heavy towing, and high-mileage LML applications while giving your engine bay a clean, factory-style appearance.

Built from multi-ply silicone reinforced with high-strength fabric layers, these hoses are designed to withstand the heat, pressure, and vibration of a hard-working Duramax cooling system while resisting the cracking, swelling, and deterioration that can affect traditional rubber hoses. The direct OEM-style design follows factory routing and connections for a straightforward installation without modifications, while the included stainless steel clamps provide a secure, reliable seal.

Vehicle Fitment
2011-2016 GM 6.6L Duramax LML
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
About Mammoth Performance Products
Mammoth Performance Parts specializes in high-quality silicone hoses, intercooler boots, and cooling system components engineered for demanding diesel truck applications. Their lineup includes vehicle-specific silicone intercooler boot kits, radiator hoses, and complete hose packages for popular Cummins, Duramax, and Powerstroke platforms, providing a durable upgrade over aging or worn factory components. Built from heat-resistant, reinforced silicone and designed for precise OEM-style fitment, Mammoth products are engineered to withstand high temperatures, pressure, and the harsh conditions commonly found under the hood of diesel trucks. With a focus on dependable construction, easy installation, and long-term performance, Mammoth Performance Parts delivers reliable solutions for replacing factory hoses, strengthening critical charge-air connections, and keeping diesel cooling and induction systems operating properly.