Dayco 70055 Radiator Coolant Hose - Upper

Curved Upper Radiator Hose

Dayco 70055 is a curved radiator coolant hose for upper cooling-system routing on select Chevrolet and GMC trucks and vans. It is a direct replacement for the specified applications and follows the original hose path for a proper service fit.

Key Features

• Curved radiator coolant hose for upper cooling-system routing
• Direct replacement for the listed applications
• Formed to match the original hose path
• Fits Chevrolet Express 2500, Express 3500, Silverado 2500 HD, and Silverado 3500 HD
• Fits GMC Savana 2500, Savana 3500, Sierra 2500 HD, and Sierra 3500 HD

Detailed Description

Dayco 70055 is built for upper radiator hose service on 2015-2016 Chevrolet Express 2500, Express 3500, Silverado 2500 HD, and Silverado 3500 HD, as well as 2015-2016 GMC Savana 2500, Savana 3500, Sierra 2500 HD, and Sierra 3500 HD. The curved shape supports the factory routing used in these cooling systems, helping maintain a clean hose path during replacement. This part number, 70055, is a practical choice when replacing a worn or damaged upper radiator coolant hose on Chevrolet Silverado and GMC Sierra applications.

What It Is Used For

• Replacing a cracked or leaking upper radiator hose
• Restoring coolant flow through the upper cooling circuit
• Addressing hose collapse, swelling, or soft spots
• Correcting fitment issues caused by an incorrect hose shape

Installation Notes and Tips

Verify the vehicle year, make, model, and upper hose routing before installation. Compare the removed hose to the new part to confirm the curved profile and connection points match the application. Inspect hose clamps, necks, and adjacent cooling-system components for wear before reassembly.

Quality Assurance

Dayco is a recognized name in belts and cooling components, and 70055 is cataloged for the listed OE-style applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.