Dorman 626-553 HVAC Heater Hose Assembly - Outlet

Overview of Dorman HVAC Heater Hose Assembly 626-553

The Dorman HVAC Heater Hose Assembly 626-553 is designed to provide reliable heating system performance for select GM vehicles. Engineered with a molded aluminum and rubber construction, this heater hose assembly is compatible with Cadillac Escalade, Chevrolet Suburban, and GMC Yukon models, ensuring a precise fit and durable operation.

• Material: Combination of aluminum and rubber for durability and flexibility
• Includes clamps for secure installation
• Three-branch molded hose assembly with varied inside diameters (0.75", 1", 0.6")
• Maximum working pressure rated at 100 PSI
• Natural/no finish color for corrosion resistance
• Quick connect attachment on one end for ease of connection
• Centerline length of 31 inches for proper routing

Detailed Product Description

This HVAC heater hose assembly from Dorman is constructed with a combination of aluminum and rubber materials, providing a balance of strength and flexibility necessary for effective coolant flow in heating systems. The molded assembly features three branches with specific inside diameters to match OEM specifications, ensuring compatibility with the heating system of Cadillac Escalade, Escalade ESV, Chevrolet Suburban 1500 and 2500, Tahoe, GMC Yukon, Yukon XL 1500, and Yukon XL 2500 models. The natural finish helps resist corrosion without the need for additional coatings. Clamps are included to secure the hose ends, which attach via hose and quick connect fittings, facilitating a straightforward installation process.

Applications and Common Issues Addressed

• Replacement of worn or cracked heater hoses causing coolant leaks
• Resolving heater core flow problems due to damaged or collapsed hoses
• Fixing overheating issues related to restricted coolant flow in the HVAC system
• Eliminating rattling or loose hose connections with included clamps
• Restoring proper heater function in Cadillac Escalade, Chevrolet Suburban, and GMC Yukon vehicles

Installation Notes and Tips

• Ensure the vehicle is cool before beginning installation to avoid burns from hot coolant
• Verify hose routing matches OEM configuration to prevent kinks or interference
• Use the included clamps to secure all hose ends firmly
• Check all quick connect fittings for proper engagement to avoid leaks
• Inspect surrounding components for wear or damage during installation

Quality Assurance and Warranty

Dorman manufactures this heater hose assembly to meet or exceed OEM standards for fit, form, and function. The part number 626-553 undergoes rigorous quality control to ensure durability and reliable performance under normal operating conditions. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship, providing confidence in the product's longevity and service life.