Dayco 71423 HVAC Heater Hose - Heater Hose or Heater To Pipe

Overview of Dayco Curved Radiator Hose 71423

The Dayco Curved Radiator Hose 71423 is designed for reliable HVAC system performance in select Volkswagen models. Engineered with durable EPDM material, this dual inside diameter hose ensures proper coolant flow and heat resistance for vehicles like the Volkswagen Jetta, Quantum, Rabbit Convertible, and Rabbit Pickup.

• Constructed from high-quality EPDM material for heat and chemical resistance
• Dual inside diameters: 5/8 inch and 15/16 inch for precise fitment
• Black color for standard OEM appearance
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Designed without heat shield or protective sleeve
• Trunk height dimension of 10 inches for accurate installation

Detailed Product Description

The Dayco Curved Radiator Hose 71423 is part of the Curved Radiator Hose product line, which focuses on delivering hoses with specific bends and dual inside diameters to accommodate complex HVAC routing in vehicles. This hose is manufactured from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals, making it suitable for the demanding environment of automotive heating and cooling systems.

With an inside diameter of 5/8 inch on one end and 15/16 inch on the other, this dual i.d. hose is designed to fit precisely in the HVAC system of Volkswagen models such as the Jetta, Quantum, Rabbit Convertible, and Rabbit Pickup. The black color matches OEM standards, ensuring a consistent look under the hood. The hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive HVAC applications.

Applications and Problem Solving

• Replacement of worn or cracked heater hoses in Volkswagen Jetta and Quantum models
• Restoration of proper coolant flow in Rabbit Convertible and Rabbit Pickup HVAC systems
• Prevention of coolant leaks caused by deteriorated or damaged hoses
• Addressing overheating issues related to faulty heater hoses
• Ensuring HVAC system integrity for consistent cabin heating performance

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 71423, ensure the hose is routed correctly to avoid kinks or sharp bends that could restrict coolant flow. Verify the hose ends match the required inside diameters of 5/8 inch and 15/16 inch for a secure fit. Since this hose does not include a heat shield or protective sleeve, take care to avoid contact with hot engine components or abrasive surfaces during installation.

Quality Assurance

Dayco manufactures the Curved Radiator Hose 71423 to meet stringent SAE specifications, including SAE J20R4 Class D-1 and SAE J1684 Type EC, ensuring durability and performance in automotive HVAC systems. While no specific warranty information is provided, Dayco's adherence to industry standards supports reliable operation in compatible Volkswagen vehicles.