• Rudy's Upgraded Black Silicone Hose Kit For 2017-2019 GM 6.6L L5P Duramax
  • Rudy's Upgraded Black Silicone Hose Kit For 2017-2019 GM 6.6L L5P Duramax
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Rudy's Upgraded Black Silicone Hose Kit For 2017-2019 GM 6.6L L5P Duramax

Rudy's Upgraded Black Silicone Hose Kit For 2017-2019 GM 6.6L L5P Duramax

$189.95 USD
$189.95 USD
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  • Ships direct from the brand or supplier
  • Tracking emailed when it ships
  • Free fitment check before you order
Whether you're towing the family camper or heading to the job site, your Duramax is built to handle tough tasks. However, the factory radiator hoses on the L5P Duramax (2017-2019) are made from a mix of molded rubber and plastic, materials that can degrade over time. After countless heat cycles, long hours of idling, and thousands of high-stress miles, these hoses can harden, crack, or develop leaks.

That’s why Rudy's developed this premium silicone coolant hose kit for your 2017-2019 6.6L L5P Duramax. Designed for durability, these hoses are crafted with five layers of silicone reinforced with heat-resistant fibers, paired with all-aluminum hose junctions to replace the weaker stock plastic connectors. This ensures superior heat resistance, pressure tolerance, and reliability even in the harshest environments.

To make installation as straightforward as possible, the kit includes stainless-steel worm gear clamps and a replacement O-ring for the lower hose quick-disconnect fitting. With this comprehensive kit, you’ll have everything needed for a leak-free and hassle-free installation.

Features:
  • Direct Fit Replacement: Designed for 2017-2019 Chevrolet/GMC 6.6L Duramax L5P models.
  • Upgraded Connectors: Replaces stock plastic connectors with durable aluminum for improved heat and pressure resistance.
  • Improved Leak Prevention: Includes a new lower radiator hose O-ring for a secure, leak-free connection.
  • Durable Construction: Features five-layer silicone hoses reinforced with heat-resistant fibers for exceptional longevity.
Includes:
  • (1) Silicone Upper Radiator Hose
  • (1) Silicone Lower Radiator Hose
  • (7) Stainless Steel Worm Gear Clamps
  • (1) Replacement Quick-Disconnect O-Ring
Fitment:
  • 2017-2019 Chevrolet Silverado 2500HD/3500HD 6.6L L5P Duramax
  • 2017-2019 GMC Sierra 2500HD/3500HD 6.6L L5P Duramax
Note:
  • 1 Year Warranty
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About this fluid

Fresh fluids at the right intervals prevent most wear-related failures.

Fitment notes

  • Engine: the same car can take different parts for each engine option, so check yours.
  • Specs, lead time and warranty come from the manufacturer and supplier and can change. The details above this guide are the latest we have.

Not sure it fits? Message us your vehicle details and we'll double-check fitment before you buy.

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Parts that usually go with it

  • Filter. Change the filter with the fluid.

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Questions about fluid or chemical

Will this fit my car?
Check the title and details above for the vehicles and part number it is listed for. If you are not sure, contact us with your year, make, model, engine and trim and we will confirm fitment before you order.
Which type does my car need?
Your owner's manual lists the required spec.
Where do specs and warranty details come from?
From the manufacturer. Each brand sets its own specs, lead times and warranty terms, and they can change. The product details above are the latest we have.