Dayco 88490 HVAC Heater Hose - Heater Inlet or Lower

Overview of Dayco Small I.D. Heater Hose 88490

The Dayco Small I.D. Heater Hose 88490 is designed specifically for HVAC systems in select Hyundai and Kia vehicles. Engineered with durable EPDM material, this hose ensures reliable performance in heating applications for models like the Hyundai Santa Fe, Santa Fe Sport, and Kia Sorento.

• Constructed from high-quality EPDM for heat and chemical resistance
• Dual inside diameter hose with 3/4 inch and 13/16 inch ends
• Black color with protective sleeve for added durability
• Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
• Compatible with Hyundai Santa Fe, Santa Fe Sport, and Kia Sorento

Detailed Product Features and Specifications

The Dayco Small I.D. Heater Hose 88490 features a dual inside diameter design, with one end measuring 3/4 inch and the other 13/16 inch, allowing for precise fitment in HVAC heater systems. The hose is made from EPDM (ethylene propylene diene monomer), a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids. This hose is black in color and includes a protective sleeve to guard against abrasion and environmental damage, although it does not contain a heat shield. The outside diameters are 1 3/32 inches and 1 5/32 inches respectively, ensuring a secure connection within the HVAC system. With a trunk height of 12 inches, this hose is designed to meet the specific routing requirements of the intended vehicles.

About the Small I.D. Heater Hose Product Line

The Dayco Small I.D. Heater Hose product line focuses on providing precise, application-specific hoses for automotive heating systems. These hoses are engineered to meet stringent SAE specifications such as J20R3 Class D-1 and J1684 Type EC, ensuring compatibility and durability in demanding HVAC environments. The 88490 part number is part of this line, offering a dual inside diameter configuration tailored for Hyundai and Kia models requiring reliable heater hose solutions.

Applications and Common Issues Addressed

• Replacement of worn or cracked heater hoses in Hyundai Santa Fe, Santa Fe Sport, and Kia Sorento HVAC systems
• Prevention of coolant leaks that can cause heating system failure
• Restoration of proper coolant flow to maintain cabin heating efficiency
• Elimination of hose abrasion and damage due to the protective sleeve
• Ensuring compliance with OEM specifications for HVAC hose replacement

Installation Notes and Tips

• Verify hose diameters and length against the vehicle’s HVAC system before installation
• Ensure all clamps and fittings are securely tightened to prevent leaks
• Inspect surrounding components for wear or damage during replacement
• Use appropriate coolant compatible with EPDM hoses to avoid premature degradation
• Follow vehicle manufacturer guidelines for heater hose routing and installation

Quality Assurance and Warranty

Dayco manufactures the Small I.D. Heater Hose 88490 to meet SAE J20R3 Class D-1 and SAE J1684 Type EC standards, ensuring consistent quality and performance. The use of EPDM material provides resistance to heat, ozone, and automotive fluids, contributing to long service life. While specific warranty details are not provided, Dayco products typically adhere to industry standards for durability and reliability in automotive HVAC applications.