Chevrolet Express 3500 Radiator Coolant Hose Kit - Mishimoto - Red - 11-15. A purpose-built silicone coolant hose kit designed for heavy-duty 6.6L Duramax applications, providing durable replacement hoses with factory-style fit and performance-oriented construction.

This Mishimoto kit is constructed from high-grade silicone with five layers of heat-resistant embedded fibers for improved pressure and temperature tolerance compared to stock rubber hoses. CNC-machined billet quick-disconnect ends and a 6061 aluminum lower coupler ensure direct fitment to the factory radiator without cutting, while included T-bolt clamps make installation straightforward. The red finish gives a customized look under the hood and complements Mishimoto aluminum radiators when building a more robust cooling system. The kit carries Mishimoto’s signature lifetime warranty for long-term peace of mind.

Features

• High-grade silicone with five heat-resistant fiber layers for durability
• CNC-machined billet quick-disconnect fittings for factory-style mating
• 6061 aluminum lower radiator coupler for precise fit
• T-bolt clamps included for secure installation
• Offered in red to match performance engine bays; Mishimoto lifetime warranty

If you have questions or want help confirming fitment, call us directly — we’re happy to assist. We offer installation and customization services at two locations: Austin, Texas and the Los Angeles, California area. Call 512-982-9393 (TX) or 562-981-6800 (CA) to schedule or ask about this kit. If you’re considering multiple items, contact us for shipping discounts. We install on premises at both locations.

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