Dayco 70010 Radiator Coolant Hose - Upper

Overview

Dayco 70010 is a curved radiator coolant hose for cooling system service on select Chevrolet and GMC medium-duty trucks. It is built for upper hose applications where a formed routing path is needed to match the engine bay layout.

Key Features

• Curved hose design for formed coolant routing.
• Upper radiator hose application for cooling system service.
• Dayco cooling system part, engineered for replacement use.
• Fits select Chevrolet and GMC B7, Kodiak, and Topkick models.

Detailed Description

Dayco 70010 is a radiator coolant hose designed for upper cooling system routing in select Chevrolet and GMC trucks. The curved construction helps follow the original hose path and supports proper coolant transfer between engine and radiator connections. This part number, 70010, is listed for 1999-2000 Chevrolet B7 and GMC B7, plus 1999-2000 GMC C6500 Topkick and C7500 Topkick, along with 1999 Chevrolet C6500 Kodiak and C7500 Kodiak applications. For buyers searching for a Chevrolet B7 radiator hose, GMC Topkick upper radiator hose, or a Kodiak coolant hose replacement, this Dayco hose matches the specified fitment.

What It Is Used For

• Replacing a worn, cracked, or softened upper radiator hose.
• Restoring coolant flow through the engine cooling circuit.
• Addressing leaks at hose bends or connection points.
• Correcting hose routing where a formed shape is required.

Installation Notes and Tips

Verify the vehicle year, make, model, and upper hose routing before installation. Compare the original hose shape and connection points to confirm the correct application for your Chevrolet B7, GMC B7, or Topkick/Kodiak truck. Inspect clamps and mating surfaces during service, and replace any damaged cooling system components as needed.