Dayco 88502 HVAC Heater Hose - Heater Hose or Heater To Pipe

Overview of Dayco Small I.D. Heater Hose 88502

The Dayco Small I.D. Heater Hose 88502 is designed specifically for Volkswagen Golf and Jetta models. Engineered to meet SAE J20R3 Class D-1 and SAE J1684 Type EC specifications, this dual inside diameter hose ensures reliable HVAC system performance.

• Constructed from durable EPDM material for heat and chemical resistance
• Dual inside diameters: 3/4 inch and 7/8 inch for versatile fitment
• Black color for standard OEM appearance
• Outside diameters: 1 1/16 inch and 1 3/8 inch for secure connections
• Complies with SAE J20R3 Class D-1 and SAE J1684 Type EC standards
• Trunk height of 11 inches suitable for compact routing

Details on the Small I.D. Heater Hose Product Line

The Small I.D. Heater Hose line by Dayco focuses on providing hoses with dual inside diameters to accommodate specific HVAC system requirements. This product line is engineered to deliver precise fit and durability for heating applications, making it suitable for Volkswagen vehicles such as the Golf and Jetta. The 88502 part number represents a hose designed to maintain system integrity without additional heat shields or protective sleeves.

Product Description and Specifications

The Dayco 88502 heater hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and automotive fluids. This hose features two different inside diameters—3/4 inch on one end and 7/8 inch on the other—allowing it to connect components with varying sizes within the HVAC system. The outside diameters of 1 1/16 inch and 1 3/8 inch ensure a secure fit with clamps and fittings. Its black color matches OEM standards, and the hose does not include a heat shield or protective sleeve, which is typical for this product line. The hose length and trunk height of 11 inches provide adequate routing space in Volkswagen Golf and Jetta models.

Common Applications and Problem Solving

• Replacement of worn or cracked heater hoses in Volkswagen Golf and Jetta HVAC systems
• Resolving coolant leaks that affect cabin heating performance
• Addressing hose swelling or softening due to heat exposure
• Ensuring proper coolant flow between heater core and engine
• Maintaining system pressure and preventing overheating issues

Installation Notes and Tips

• Verify hose diameters match the vehicle’s HVAC fittings before installation
• Inspect clamps and fittings for wear and replace if necessary
• Ensure proper routing to avoid kinks or contact with moving parts
• Use appropriate coolant compatible with EPDM hoses
• Check for leaks after installation and during initial operation

Quality Assurance and Warranty

Dayco manufactures the Small I.D. Heater Hose 88502 to meet strict SAE standards, ensuring durability and performance in Volkswagen Golf and Jetta vehicles. While specific warranty details are not provided, Dayco products typically come with manufacturer-backed quality assurance to support reliable HVAC system operation.