Dorman 626-538 HVAC Heater Hose Assembly - Outlet

Overview of Dorman HVAC Heater Hose Assembly 626-538

The Dorman HVAC Heater Hose Assembly 626-538 is designed for reliable heating system performance in select GM vehicles. Engineered with a combination of aluminum and rubber, this molded hose assembly ensures durability and proper coolant flow for Cadillac, Chevrolet, and GMC models.

• Constructed from aluminum and rubber for strength and flexibility
• Includes clamps for secure installation
• Molded branched hose assembly with three branches
• Compatible with quick connect and hose attachment types
• Maximum working pressure of 100 PSI
• Centerline length of 32 inches for precise fitment
• Natural/no finish color for OEM appearance

Detailed Product Description

The Dorman 626-538 HVAC Heater Hose Assembly is a molded branched hose designed to maintain efficient coolant flow within the heating system of various GM trucks and SUVs. Featuring three branches with inside diameters of 0.72, 1.05, and 0.62 inches, this assembly accommodates different hose connections, including quick connect fittings and standard hose ends. The combination of aluminum and rubber materials provides a balance of corrosion resistance and flexibility, essential for withstanding the thermal cycles and pressure demands of the HVAC system. Clamps are included to ensure a secure and leak-free installation. This heater hose assembly is compatible with vehicles such as the Cadillac Escalade and Escalade ESV, Chevrolet Avalanche 1500, Suburban 1500 and 2500, Tahoe, and GMC Yukon, Yukon XL 1500, and Yukon XL 2500.

Compatible Vehicles and Applications

• Cadillac Escalade and Escalade ESV
• Chevrolet Avalanche 1500, Suburban 1500, Suburban 2500, Tahoe
• GMC Yukon, Yukon XL 1500, Yukon XL 2500

This heater hose assembly is designed to replace worn or damaged HVAC heater hoses that can cause coolant leaks, reduced heating efficiency, or overheating issues.

Common Issues Addressed by This Heater Hose Assembly

• Coolant leaks from cracked or deteriorated heater hoses
• Reduced heater core performance due to restricted coolant flow
• Overheating caused by compromised hose integrity
• Loose or damaged hose connections leading to system pressure loss
• Wear from exposure to heat and engine vibrations

Installation Notes and Tips

• Ensure the engine is cool before beginning installation to avoid burns
• Use the included clamps to secure all hose connections tightly
• Verify the correct orientation of the molded branches for proper fitment
• Inspect surrounding components for wear or damage during replacement
• Check for leaks after installation by running the engine and monitoring the HVAC system

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The 626-538 heater hose assembly undergoes rigorous quality control to ensure durability and reliable performance under normal operating conditions. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Refer to the product documentation for exact warranty terms.