1-4 DAYS DELIVERY
Mishimoto 17-19 Chevrolet Duramax 6.6L L5P Blue Silicone Radiator Hose Kit - MMHOSE-DMAX-17BL
100% ORIGINAL AND QUALITY
60 DAYS RETURNS
- Description
- Shipping and Refund
- Reviews
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.
Silicone Coolant Hose Kit, fits Chevrolet/GMC 6.6L Duramax 2017-2019
Fits
2017 Chevrolet Silverado 2500 HD High Country
2017 Chevrolet Silverado 2500 HD LT
2017 Chevrolet Silverado 2500 HD LTZ
2017 Chevrolet Silverado 2500 HD WT
2017 Chevrolet Silverado 3500 HD High Country
2017 Chevrolet Silverado 3500 HD LT
2017 Chevrolet Silverado 3500 HD LTZ
2017 Chevrolet Silverado 3500 HD WT
2017 GMC Sierra 2500 HD Base
2017 GMC Sierra 2500 HD Denali
2017 GMC Sierra 2500 HD SLE
2017 GMC Sierra 2500 HD SLT
2017 GMC Sierra 3500 HD Base
2017 GMC Sierra 3500 HD Denali
2017 GMC Sierra 3500 HD SLE
2017 GMC Sierra 3500 HD SLT
2018 Chevrolet Silverado 2500 HD High Country
2018 Chevrolet Silverado 2500 HD LT
2018 Chevrolet Silverado 2500 HD LTZ
2018 Chevrolet Silverado 2500 HD WT
2018 Chevrolet Silverado 3500 HD High Country
2018 Chevrolet Silverado 3500 HD LT
2018 Chevrolet Silverado 3500 HD LTZ
2018 Chevrolet Silverado 3500 HD WT
2018 GMC Sierra 2500 HD Base
2018 GMC Sierra 2500 HD Denali
2018 GMC Sierra 2500 HD SLE
2018 GMC Sierra 2500 HD SLT
2018 GMC Sierra 3500 HD Base
2018 GMC Sierra 3500 HD Denali
2018 GMC Sierra 3500 HD SLE
2018 GMC Sierra 3500 HD SLT
2019 Chevrolet Silverado 2500 HD High Country
2019 Chevrolet Silverado 2500 HD LT
2019 Chevrolet Silverado 2500 HD LTZ
2019 Chevrolet Silverado 2500 HD WT
2019 Chevrolet Silverado 3500 HD High Country
2019 Chevrolet Silverado 3500 HD LT
2019 Chevrolet Silverado 3500 HD LTZ
2019 Chevrolet Silverado 3500 HD WT
2019 GMC Sierra 2500 HD Base
2019 GMC Sierra 2500 HD Denali
2019 GMC Sierra 2500 HD SLE
2019 GMC Sierra 2500 HD SLT
2019 GMC Sierra 3500 HD Base
2019 GMC Sierra 3500 HD Denali
2019 GMC Sierra 3500 HD SLE
2019 GMC Sierra 3500 HD SLT
Shipping & Processing Time
All in-stock orders are processed and shipped within 1 business day (excluding weekends and holidays).
Delivery typically takes 2–5 business days, depending on the destination. We ship from multiple warehouses across the United States, which allows us to deliver orders as quickly as possible.
Please note that delivery times are estimates provided by the carrier and are not guaranteed.
Shipping Carriers
Most orders are shipped via UPS Ground or FedEx, depending on the size and weight of the item.
Some large or oversized items may be shipped via SAIA or other freight carriers.
Carrier selection is determined automatically at the time of shipment.
Tracking Information
Once your order has shipped, a tracking number will be emailed to the email address provided at checkout.
Tracking information usually becomes active within 1 business day after shipment, depending on the carrier.
Where Is My Order?
When tracking information is provided, this means your order has been processed and shipped.
Carriers such as UPS and FedEx provide point-in-time tracking, meaning updates occur as the package is scanned during transit.
Most orders arrive within 2–5 business days. If your order does not arrive within the estimated timeframe, please contact us and we will be happy to assist.
Delivered Packages & Theft
Once an order is marked as Delivered by the carrier to the address provided at checkout, the order is considered successfully fulfilled.
We are not responsible for lost or stolen packages after delivery, including cases of mail theft.
If your tracking shows “Delivered” but you did not receive the package, we recommend:
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Checking around your property and with neighbors
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Contacting the carrier to file a missing or stolen package claim
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Filing a police report for mail theft (if applicable)
If the carrier provides written confirmation of delivery error, please contact us and we will review the case.
Signature Requirement
Signature confirmation is not required by default for orders under $200.
If you would like to add signature confirmation to your shipment, please contact us before placing your order. Additional fees may apply.
Incorrect Shipping Address
Customers are responsible for providing an accurate and complete shipping address at checkout.
We are not responsible for orders delivered to an incorrect address provided by the customer.
Cancellations
Order cancellations are free of charge as long as the order has not yet shipped.
Please contact us as soon as possible if you need to cancel your order. Once an order has shipped, it cannot be canceled.
Contact Us
If you have any questions regarding shipping, delivery, or your order, please contact us and we will be happy to help.





