Sale

Heating and Cooling Radiators

Mishimoto

Mishimoto 17-19 Chevrolet Duramax 6.6L L5P Blue Silicone Radiator Hose Kit

$461.00 $329.95 Save $131.05

SKU: M00C MMHOSE-DMAX-17BL

In Stock
In Stock
Ships by Aug 30
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Mishimoto MMHOSE-DMAX-17BL Blue Silicone Radiator Hose Kit is designed for the 2017-2019 GM 6.6L Duramax L5P. These hoses are constructed from five layers of silicone with heat-resistant embedded fibers and all-aluminum hose junctions, providing more robust coolant passages for years of service in harsh conditions. The kit includes a full set of stainless-steel clamps and a replacement O-ring for the lower hose quick-disconnect fitting, ensuring a hassle and leak-free installation. The kit is available in Black, Blue, or Red and comes with Mishimoto's Limited Lifetime Warranty.
Show original supplier description

Part #: MMHOSE-DMAX-17BL

Whether you're hauling the family fifth wheel or driving out to the job site, you rely on your Duramax to get where you need to go. The factory Duramax L5P radiator hoses are constructed from a mixture of molded rubber and plastic. As your truck endures thousands of heat cycles, hours of idle time, and countless high-stress miles, those materials will begin to degrade, harden, and potentially develop leaks. That's why Mishimoto has designed this replacement silicone coolant hose kit for your 2017-2019 6.6L L5P Duramax. This kit features hoses constructed from five layers of silicone with heat-resistant embedded fibers and all-aluminum hose junctions. This combination yields far more robust coolant passages, which will provide years of service in the harshest conditions. This kit also includes a full set of stainless-steel clamps and a replacement O-ring for your lower hose quick-disconnect fitting, providing everything you need for a hassle and leak-free installation. The Mishimoto Silicone Coolant Hose Kit is available in Black, Blue, or Red and includes our signature Mishimoto Lifetime Warranty.

Features:

  • Direct fit for the 2017-2019 Chevrolet/GMC 6.6L Duramax
  • Replaces stock plastic connectors with aluminum for greater resistance to heat and pressure
  • Includes new lower radiator hose O-ring for leak-free install
  • Constructed from five layers of silicone with heat-resistant embeaded fibers
  • Includes high-quality worm gear clamps for easy installation
  • Available in black, blue, or red
  • Pair with Mishimoto Performance Aluminum Radiator for even greater cooling system protection
  • Mishimoto Lifetime Warranty

Complete radiator coolant hose kit designed to maintain proper coolant flow and system pressure. Includes durable, heat-resistant hoses for leak prevention, reliable performance, and a precise, easy installation.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandMishimoto
Part NumberM00C MMHOSE-DMAX-17BL

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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