Gates 23729 Radiator Coolant Hose - Upper

Reliable Radiator Coolant Hose for Chevrolet and GMC Vehicles

The Gates Molded Coolant Hose 23729 is engineered to provide dependable cooling system performance for select Chevrolet and GMC trucks and vans. Designed with durable EPDM material, this radiator coolant hose ensures consistent heat resistance and flexibility for long-lasting service.

Key Features of Gates Molded Coolant Hose 23729

• Constructed from high-quality EPDM material for heat and chemical resistance
• Molded design for precise fit and secure connection
• Centerline length of 46.4 inches (1179 mm) for accurate replacement
• Inside diameter of 1.31 inches (33 mm) on both ends for consistent coolant flow
• Compatible with multiple Chevrolet and GMC models including Express, Savana, Sierra, and Silverado series
• Does not contain a spring or quick connect fittings, ensuring straightforward installation

About the Molded Coolant Hose Product Line

The Gates Molded Coolant Hose line focuses on delivering hoses that are pre-formed to match specific vehicle cooling system requirements. This eliminates the need for bending or shaping during installation, reducing the risk of leaks or hose damage. The molded construction of part number 23729 ensures a precise fit for Chevrolet Express 2500/3500, GMC Savana 2500/3500, and various Sierra and Silverado heavy-duty models.

Detailed Product Description

This radiator coolant hose is made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and coolant chemicals. The hose features a consistent inside diameter of 1.31 inches (33 mm) on both ends, facilitating smooth coolant flow and system efficiency. With a centerline length of 46.4 inches (1179 mm), it matches the original equipment specifications for the listed Chevrolet and GMC vehicles. The molded design ensures the hose maintains its shape and fits securely without the need for additional fittings or springs.

Common Applications and Issues Addressed

• Replacement of worn or cracked radiator coolant hoses in Chevrolet Express 2500 and 3500 models
• Restoring proper coolant flow in GMC Savana 2500 and 3500 vans
• Repairing leaks or swelling in cooling systems of Sierra 1500, 2500 HD, and 3500 HD trucks
• Maintaining cooling efficiency in Silverado 2500 HD, 3500, and 3500 HD heavy-duty pickups
• Preventing overheating caused by deteriorated or damaged hoses

Installation Notes and Tips

Ensure the engine is cool before removing the old hose to avoid burns. Verify the hose orientation matches the original to maintain proper coolant flow. Use appropriate clamps to secure the hose ends firmly without over-tightening, which can damage the hose. Inspect surrounding components for wear or damage during installation.

Quality Assurance and Warranty

Gates Molded Coolant Hose 23729 is manufactured to meet or exceed OEM specifications for durability and performance. The EPDM material and molded construction contribute to a reliable cooling system component. While specific warranty details are not provided, Gates products typically adhere to industry standards for quality and reliability.