Gates 23078 Radiator Coolant Hose - Upper

Gates 23078 Molded Coolant Hose Overview

The Gates 23078 molded coolant hose is a radiator coolant hose built to OEM-quality specifications for upper cooling system service. It is formed from EPDM and shaped for a precise fit on select Buick, Chevrolet, Pontiac, and Saturn applications.

Gates Molded Coolant Hose products are engineered for radiator hose replacement across upper, lower, bypass, heater, and other coolant routing needs. This line is built to match original-style hose geometry, helping reduce the time spent sourcing a dealer replacement.

Key Features

• Part number 23078 radiator coolant hose
• EPDM construction for cooling system use
• Molded design for a formed OE-style routing path
• End 1 inside diameter: 32 mm (1.27 in)
• End 2 inside diameter: 32 mm (1.27 in)
• Centerline length: 452 mm (17.8 in)
• Contains no spring and no quick connect fittings
• Upper hose application

Detailed Description

This Gates 23078 molded coolant hose is a direct-fit upper radiator hose for 2005-2006 Buick Terraza, 2005-2006 Chevrolet Uplander, 2005-2006 Pontiac Montana, and 2005-2006 Saturn Relay. The molded shape supports the original hose path, while the EPDM material is suited for coolant exposure and everyday engine bay temperatures. If you need a replacement radiator coolant hose for a 2005-2006 Chevrolet Uplander upper hose service, this part number 23078 matches the listed application.

This part cross-references Anchor 9743 for the same application.

Common Reasons to Replace

• Coolant leaks from a cracked or deteriorated upper hose
• Softening, swelling, or hardening of the hose material
• Loss of proper coolant flow through the radiator circuit
• Visible wear at the hose ends or along molded bends
• Overheating caused by a compromised radiator hose

Installation Notes and Tips

Verify the vehicle year, make, model, and upper hose routing before installation. Inspect hose clamps, mating necks, and nearby cooling system components for wear or corrosion before transferring the new hose into place. After installation, refill and bleed the cooling system according to the vehicle service procedure and check for leaks at operating temperature.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for replacement use in the cooling system. The Gates molded coolant hose line is offered as a broad replacement range for upper, lower, bypass, heater, and related coolant hose applications.