Mishimoto Silicone Radiator Hose Kit Black - Silverado/Sierra 2500HD/3500HD 6.6L L5P (2017-2019)

Mishimoto's silicone radiator hose kit replaces the factory rubber-and-plastic coolant hoses on 2017-2019 Chevrolet Silverado 2500 HD/3500 HD and GMC Sierra 2500 HD/3500 HD trucks with the 6.6L L5P Duramax. The kit includes upper and lower hoses built from five-layer silicone with heat-resistant embedded fibers, aluminum hose junctions in place of the stock plastic connectors, a full set of stainless-steel clamps, and a replacement O-ring for the lower hose quick-disconnect fitting.

Specifications

This part fits:

Shipping

• In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
• Standard, expedited, and overnight options at checkout.
• Oversized items ship by freight and take longer.
• Backordered items ship as soon as stock lands — contact us for lead times.
• International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

• 30-day returns on new, uninstalled items in original packaging with all hardware.
• Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
• Installed or used parts can’t be returned — confirm fitment before you install.
• Special orders and custom items are final sale.
• Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Refund Policy