Gates 19791 HVAC Heater Hose - Heater To Intake Manifold or Intake Manifold To Heater

Overview of Gates Molded Heater Hose 19791

The Gates Molded Heater Hose 19791 is designed for reliable HVAC performance in select Audi and Volkswagen vehicles. Engineered with durable EPDM material, this molded heater hose ensures consistent heat transfer and long-lasting service in your vehicle's heating system.

• Constructed from high-quality EPDM for heat and chemical resistance
• Molded design for precise fit and secure connections
• Centerline length of 24.9 inches (632 mm) for accurate replacement
• Inside diameter of 0.76 inches (19 mm) on both ends
• Compatible with Audi A4, A4 Quattro, and Volkswagen Passat models

About the Molded Heater Hose Product Line

The Molded Heater Hose line by Gates focuses on delivering hoses that are pre-formed to match specific vehicle configurations. This reduces installation time and ensures a proper fit without the need for modifications. The 19791 part number is part of this line, providing a direct replacement hose that meets OEM specifications for HVAC systems in Audi and Volkswagen vehicles.

Detailed Product Description

This HVAC heater hose is made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids. The molded construction of the Gates 19791 hose allows it to maintain its shape and fit precisely within the HVAC system of compatible vehicles. Both ends feature an inside diameter of 0.76 inches (19 mm), making it suitable for the original connection points. With a centerline length of 24.9 inches (632 mm), this hose matches the exact length required for proper coolant flow and heater core operation.

Applications and Common Issues Addressed

• Replacement of cracked or leaking heater hoses in Audi A4 and A4 Quattro models
• Resolving coolant leaks causing insufficient cabin heating in Volkswagen Passat
• Addressing hose deterioration due to heat and chemical exposure over time
• Eliminating improper fit issues from generic or universal hoses
• Maintaining proper coolant flow to the heater core for HVAC system efficiency

Installation Notes and Tips

Ensure the engine is cool before beginning installation to avoid burns from hot coolant. Verify hose routing matches the original configuration to prevent kinks or interference with other engine components. Use appropriate clamps to secure the hose ends firmly. Inspect adjacent components for wear or damage during replacement to maintain overall HVAC system integrity.

Quality Assurance and Warranty

Gates Molded Heater Hose 19791 is manufactured to meet or exceed OEM standards for durability and performance. The EPDM material and molded design contribute to a reliable, long-lasting replacement part. Please refer to Gates' official warranty policy for specific coverage details.