Gates 23581 Radiator Coolant Hose - Upper

Gates 23581 Molded Coolant Hose Overview

The Gates 23581 molded coolant hose is a molded radiator coolant hose built for specific vehicle applications and shaped to follow the original routing. It uses EPDM and plastic construction and is made to reflect OEM-style requirements, including integrated modular hose features where applicable. This part fits 2008-2015 Scion xB, upper.

Gates Molded Coolant Hose products are part of the brand’s modular coolant hose line, which focuses on application-specific replacement hoses with OE-style integrated components such as branches, connectors, sensors, and restrictors when required by the vehicle design. The Gates 23581 follows that approach for a direct-fit cooling system repair on the Scion xB.

Key Features

• Part number: 23581
• Radiator coolant hose for the upper cooling circuit
• Molded design for application-specific routing
• EPDM and plastic construction
• Modular hose with one branch
• No spring and no quick-connect fittings
• Fits 2008-2015 Scion xB, upper

Detailed Product Description

This Gates 23581 molded coolant hose is engineered for the upper radiator hose position on 2008-2015 Scion xB models. The molded shape helps match the factory hose path, while the modular hose design supports OE-style cooling system layouts that may include branches and other integrated features. For buyers searching for a 2008-2015 Scion xB upper radiator coolant hose or a Gates 23581 replacement hose, this part provides a direct application match.

The hose is built from EPDM and plastic and measures 1.3 inches inside diameter at both ends, with a centerline length of 25.1 inches. It includes one branch and does not use a spring or quick-connect fittings. This makes it a practical replacement for a worn, cracked, or leaking upper coolant hose on the Scion xB.

Common Problems This Part Can Address

• Coolant leakage from a cracked or deteriorated upper hose
• Softening, swelling, or splitting in the radiator hose
• Incorrect hose routing after prior repair work
• Cooling system seepage at a molded hose branch area
• Loss of coolant from an aging OEM-style hose assembly

Installation Notes and Tips

Verify the vehicle’s upper hose routing and compare the original hose shape before installation. Inspect hose clamps, mating necks, and nearby cooling system components for wear or corrosion before reassembly. After installation, refill the cooling system with the correct coolant and check for leaks at operating temperature.

Quality Assurance

Gates is a recognized supplier in the modular coolant hose segment, and this hose is manufactured to application-specific standards with OE-style integrated design details. Part number 23581 is intended for direct replacement use on the listed Scion xB fitment.