Dorman 626-728 Radiator Coolant Hose - Outlet

Durable Radiator Coolant Hose for Chevrolet and GMC Trucks

The Dorman 626-728 radiator coolant hose is engineered to provide reliable cooling system performance for heavy-duty Chevrolet and GMC trucks. Designed as a molded assembly, this hose ensures a precise fit and consistent coolant flow for models like the Silverado 2500 HD and Sierra 3500 HD.

• Constructed from high-quality rubber elastomer (caucho) for durability and flexibility
• Molded assembly design for exact fit and secure connections
• Black color for standard OEM appearance
• Inside diameters: 1.92 inches (End 1) and 1.51 inches (End 2)
• Maximum working pressure rated at 50 psi
• Centerline length of 21 inches with a 90-degree bend angle
• Compatible with Chevrolet Silverado 2500 HD, Silverado 3500, Sierra 2500 HD, and Sierra 3500 HD models

Technical Details and Construction

The Dorman 626-728 radiator coolant hose is made from a durable rubber elastomer material, commonly referred to as caucho, which offers excellent resistance to heat, pressure, and coolant chemicals. Its molded assembly construction ensures the hose maintains its shape and integrity under operating conditions, reducing the risk of leaks or failures. The hose features a 90-degree bend with a bending radius of 4 inches, designed to fit precisely within the engine bay of compatible Chevrolet and GMC heavy-duty trucks. With a maximum working pressure of 50 psi, this hose supports the cooling system's demands during normal and heavy-duty operation.

Compatible Vehicles and Applications

This radiator coolant hose is specifically designed for use in the following vehicles:

• Chevrolet Silverado 2500 HD
• Chevrolet Silverado 3500 and 3500 HD
• GMC Sierra 2500 HD
• GMC Sierra 3500 HD

It serves as a replacement for the heater hose assembly, ensuring proper coolant circulation and temperature regulation within the engine cooling system.

Common Issues Addressed by This Radiator Coolant Hose

• Coolant leaks caused by cracked or worn hoses
• Overheating due to restricted or collapsed hoses
• Loss of coolant pressure affecting engine temperature control
• Hose deterioration from exposure to heat and chemicals
• Improper fit or hose deformation leading to coolant system failure

Installation Notes and Tips

When installing the Dorman 626-728 radiator coolant hose, ensure the engine is cool to prevent burns or injury. Verify the hose orientation matches the molded shape for proper fitment. Inspect hose clamps and replace if necessary to maintain a secure seal. Avoid twisting or stretching the hose during installation to preserve its integrity and prevent premature failure.

Quality Assurance and Warranty

Dorman manufactures this radiator coolant hose to meet standard replacement grade specifications, providing reliable performance for Chevrolet and GMC heavy-duty trucks. The hose undergoes quality control testing to ensure durability and fitment accuracy. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in material and workmanship.