Dayco 88508 HVAC Heater Hose - Water Pump To Oil Cooler To Pipe

Overview of Dayco Small I.D. Heater Hose 88508

The Dayco Small I.D. Heater Hose 88508 is designed for reliable HVAC system performance in select Volkswagen models. Engineered with durable EPDM material, this branched heater hose supports efficient coolant flow and temperature regulation in your vehicle's heating system.

• Constructed from high-quality EPDM for heat and chemical resistance
• Branched hose design with three different inside diameters: 3/4", 1", and 5/8"
• Black color for standard OEM appearance
• Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
• Compatible with Volkswagen Cabrio, Golf, Jetta, and Passat models

Detailed Product Description

The Dayco Small I.D. Heater Hose 88508 is a branched hose constructed from EPDM (ethylene propylene diene monomer) rubber, known for its excellent resistance to heat, ozone, and automotive fluids. This hose features three distinct inside diameters—3/4 inch, 1 inch, and 5/8 inch—allowing it to connect multiple points within the HVAC system efficiently. The outside diameters correspond accordingly, ensuring a secure fit with OEM connectors. The hose is black in color and does not include a heat shield or protective sleeve, making it suitable for applications where additional protection is not required. It complies with SAE J20R3 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive heating and cooling systems.

The Small I.D. Heater Hose product line by Dayco focuses on delivering precise fitment and reliable performance for smaller diameter heater hoses used in vehicle HVAC systems. This line is engineered to meet the specific needs of various automotive applications, including those found in Volkswagen vehicles, ensuring compatibility and durability.

Applications and Common Issues Addressed

• Replacement of worn or cracked heater hoses in Volkswagen Cabrio, Golf, Jetta, and Passat models
• Resolving coolant leaks within the HVAC heater core circuit
• Preventing overheating caused by restricted or damaged heater hoses
• Maintaining proper heater core function for consistent cabin heating
• Addressing hose degradation due to heat and chemical exposure over time

Installation Notes and Tips

When installing the Dayco Small I.D. Heater Hose 88508, ensure all connections are clean and free of debris to prevent leaks. Verify the correct orientation of the branched hose to match the vehicle’s HVAC system layout. Use appropriate clamps to secure the hose ends firmly without over-tightening, which could damage the hose. Inspect surrounding components for wear or damage during installation to maintain overall system integrity.

Quality Assurance and Warranty

Dayco manufactures the Small I.D. Heater Hose 88508 to meet stringent SAE specifications, ensuring consistent quality and performance. The EPDM material and construction standards provide durability under typical operating conditions. Warranty details should be confirmed with the point of purchase or manufacturer documentation.