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Find Engine Cooling for your Sierra 3500

PPE Performance Silicone Upper and Lower Coolant Hose Kit; Black (17-19 6.6L Duramax Sierra 3500 HD)Find parts that fit my vehicle

Item SHG66177
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$269.99 kit

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      Product Information

      Features, Description, Q&A, Specs & Installation

      Features

      • Upper and Lower Coolant Hose Kit
      • Heavy-Duty Multi-Layer Silicone Construction
      • Reinforced with Heat-Resistant Fibers
      • High-Temperature and Pressure-Resistant
      • Durable Black Finish
      • Improves Reliability Over Stock Rubber Hoses
      • Corrosion and Crack-Resistant
      • One-Hour Installation
      • One-Year Warranty
      • Fits 2017-2019 6.6L Duramax Sierra 3500 HD Models

      Description

      Engineered for Duramax Cooling Precision. The PPE Performance Silicone Upper and Lower Coolant Hose Kit is specifically designed for the 2017–2019 6.6L Duramax Sierra 3500 HD. By replacing factory rubber hoses with high-grade silicone, this kit ensures consistent coolant flow and temperature regulation. It’s a direct-fit upgrade that enhances reliability for heavy-duty diesel applications.

      Durable Silicone Construction. Built from multi-layered silicone reinforced with heat-resistant fibers, these hoses outperform traditional rubber in both strength and longevity. They resist cracking, swelling, and deterioration caused by extreme heat and pressure. This durability makes them ideal for vehicles that endure towing, hauling, and long-distance driving.

      Black Finish for a Clean, Stealth Look. The sleek black coating provides a subtle, OEM-like appearance that blends seamlessly under the hood. Beyond aesthetics, the finish adds an extra layer of protection against abrasion and environmental wear. It’s a performance upgrade that looks as good as it functions.

      Better Heat and Pressure Resistance. PPE’s silicone hoses are rated to withstand higher operating temperatures and pressures compared to stock components. This ensures dependable cooling even under heavy loads or extreme driving conditions. The result is reduced risk of failure and improved confidence in your Duramax’s cooling system.

      Installation. Putting this PPE Performance Silicone Upper and Lower Coolant Hose Kit; Black on your 6.6L Duramax Sierra 3500 HD takes 1 hour to install.

      Warranty. There is a 1-year warranty on this product.

      Application. The PPE Performance Silicone Upper and Lower Coolant Hose Kit; Black fits 2017-2019 6.6L Duramax Sierra 3500 HD models.

      PPE 119020400

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      Installation & What's in the Box

      Installation Info

      Installation Time

      (approx) 1 Hour

      Difficulty Level:

      Simple installation for anyone.

      Installation Guides

        No guide available for this part yet.

      What's in the Box

      • (1) Upper Silicone Coolant Hose
      • (1) Lower Silicone Coolant Hose
      • Clamps

      Questions & Answers

      No questions about this product yet. Ask the First Question

      Will It Fit My Sierra 3500

      • 6.6L V8 Duramax - 17, 18, 19