Gates 23259 Radiator Coolant Hose - Lower

Gates 23259 Molded Coolant Hose Overview

The Gates 23259 molded coolant hose is a radiator coolant hose built for specific vehicle applications with OE-style routing and integrated modular components. It uses EPDM, plastic, and steel construction to match the shape and connection points required in the cooling system.

Compatible with Chevrolet Express 2500, Chevrolet Express 3500, GMC Savana 2500, and GMC Savana 3500 lower coolant hose applications, this Gates molded coolant hose supports direct replacement needs for vehicles that use a modular hose assembly. Gates 23259 is engineered around application-specific fitment and OE-style component integration.

Key Features

• Gates Molded Coolant Hose, part number 23259
• Radiator coolant hose for lower cooling system routing
• EPDM, plastic, and steel construction
• Molded design for application-specific fitment
• Modular hose assembly with branch, outlet, female quick connector, and junction
• One quick-connect fitting included in the design
• Built for vehicles that use integrated OE-style cooling components

Detailed Description

Gates 23259 is part of the Molded Coolant Hose line, a product line focused on modular coolant hose assemblies that follow the original equipment layout for specific vehicles. This hose includes integrated components commonly found in OE cooling systems, such as a branch, outlet, female quick connector, and junction, helping it match the factory hose path and connection style. The hose measures 47.61 inches centerline length, with end inside diameters of 1.51 inches, 1.89 inches, and a 0.75-inch branch connection.

This part cross-references Four Seasons 66253 and 66651 for the same application. It is a direct-fit style replacement for lower radiator coolant hose service on Chevrolet Express 2500, Chevrolet Express 3500, GMC Savana 2500, and GMC Savana 3500 models across the listed years. Gates 23259 is also referenced under multiple OE and aftermarket numbers for the same cooling system application.

What It Helps Address

• Coolant leaks from a cracked or deteriorated lower radiator hose
• Improper hose routing after a cooling system repair
• Failed quick-connector or branch-style hose connections
• Cooling system service needs on modular OE-style hose assemblies
• Replacement of a worn hose on Chevrolet Express and GMC Savana vans

Installation Notes and Tips

Verify the vehicle’s lower hose routing, connector style, and branch configuration before installation. Compare the original hose layout to the molded shape, end diameters, and quick-connect connection points on Gates 23259 to confirm match-up with the cooling system.

For best results, inspect adjoining cooling system components for wear, contamination, or damage before installing the replacement hose. Confirm that the hose seats fully at each connection point and that the routing follows the factory path without twist or tension.

Quality Assurance

Gates is a recognized automotive aftermarket supplier in modular coolant hose assemblies, and this part is manufactured to application-specific specifications with OE-style integrated components. Part number 23259 is built for the listed vehicle applications and cooling system configuration.