Dorman 626-615 HVAC Heater Hose Assembly - Outlet

Overview of Dorman HVAC Heater Hose Assembly 626-615

The Dorman HVAC Heater Hose Assembly 626-615 is designed for reliable performance in Chevrolet and GMC heavy-duty trucks. Engineered with steel, rubber, and plastic materials, this heater hose assembly ensures durability and efficient coolant flow for your vehicle's heating system.

• Constructed from steel, rubber, and plastic for strength and flexibility
• Black coated finish for corrosion resistance
• Quick connect attachment on one end and hose attachment on the other
• Centerline length of 30.5 inches with straight hose shape
• Compatible with Chevrolet and GMC Sierra and Silverado 2500 and 3500 HD models
• Maximum working pressure of 100 PSI
• Branched coolant hose type with one branch

Detailed Product Description

This HVAC heater hose assembly from Dorman, part number 626-615, is specifically designed for use in Chevrolet and GMC heavy-duty trucks including Sierra 2500 HD, Sierra 3500 HD, Silverado 2500 HD, and Silverado 3500 HD models, including Classic variants. The hose features a straight shape with a centerline length of 30.5 inches, providing a precise fit for the vehicle's heating system. The assembly is made from a combination of steel, rubber, and plastic materials, offering a balance of durability and flexibility necessary for effective coolant transfer.

The hose ends are designed with different diameters to match OEM specifications: the first end has an inside diameter of 0.878 inches and an outside diameter of 1.338 inches with a quick connect attachment, while the second end has an inside diameter of 0.477 inches and an outside diameter of 0.602 inches with a hose attachment. The black coated finish helps resist corrosion and wear over time. This assembly does not include clamps or a protective sleeve and is not thermostatically controlled.

Common Applications and Issues Addressed

• Replacement of worn or cracked heater hoses in Chevrolet and GMC Sierra and Silverado 2500/3500 HD trucks
• Resolving coolant leaks that cause heating system inefficiency
• Fixing overheating issues related to faulty heater hose assemblies
• Restoring proper coolant flow to the HVAC system
• Addressing hose failures due to pressure or material degradation

Installation Notes and Tips

• Ensure the vehicle is cool before beginning installation to avoid burns from hot coolant
• Verify hose end diameters and attachment types match your vehicle’s specifications
• Use appropriate clamps (not included) to secure hose ends firmly
• Inspect surrounding components for wear or damage during replacement
• Bleed the cooling system after installation to remove air pockets

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 626-615 HVAC heater hose assembly undergoes rigorous quality control to ensure durability and reliable performance in Chevrolet and GMC heavy-duty trucks. While specific warranty details are not provided here, Dorman typically offers limited warranties covering defects in material and workmanship. Consult product documentation or the manufacturer for exact warranty terms.