Dayco 88491 HVAC Heater Hose - Heater Inlet, Heater Outlet or Lower

Overview of Dayco Small I.D. Heater Hose 88491

The Dayco Small I.D. Heater Hose 88491 is designed for reliable HVAC system performance in select Hyundai and Kia vehicles. Engineered with durable EPDM material and a protective sleeve, this hose supports efficient heating and coolant flow in your vehicle's HVAC system.

• Constructed from high-quality EPDM rubber for heat and chemical resistance
• Dual inside diameter hose with 3/4 inch and 13/16 inch ends for precise fit
• Includes a protective sleeve to enhance durability and prevent abrasion
• Complies with SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
• Black color for standard OEM appearance
• Compatible with Hyundai Santa Fe, Santa Fe Sport, and Kia Sorento models

Detailed Product Description

The Dayco Small I.D. Heater Hose 88491 is a dual inside diameter hose designed specifically for HVAC applications in Hyundai Santa Fe, Santa Fe Sport, and Kia Sorento vehicles. Made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals, this hose ensures long-lasting performance under demanding engine bay conditions. The hose features two different inside diameters—3/4 inch on one end and 13/16 inch on the other—allowing for a precise and secure connection to your vehicle's heating system components. The outside diameters measure 1 3/32 inches and 1 3/16 inches respectively, matching OEM specifications for a proper fit.

This hose is part of Dayco's Small I.D. Heater Hose product line, which focuses on delivering reliable HVAC hose solutions with attention to fitment and material quality. The inclusion of a protective sleeve adds an extra layer of defense against abrasion and wear, although this model does not include a heat shield. Meeting SAE J20R3 Class D-1 and SAE J1684 Type EC standards, the hose adheres to industry requirements for heater hoses used in automotive HVAC systems.

Applications and Common Issues Addressed

• Replacement of worn or cracked heater hoses in Hyundai Santa Fe and Santa Fe Sport models
• Restoring proper coolant flow in Kia Sorento heating systems
• Preventing coolant leaks that cause HVAC system inefficiency
• Eliminating hose swelling or softening due to heat exposure
• Addressing hose abrasion or damage from engine bay components

Installation Notes and Tips

• Verify hose diameters and length before installation to ensure compatibility
• Inspect surrounding components for wear or damage during replacement
• Use proper clamps to secure hose ends and prevent leaks
• Ensure coolant system is depressurized and cooled before removal
• Check for any coolant leaks after installation and during initial operation

Quality Assurance and Warranty

Dayco manufactures the Small I.D. Heater Hose 88491 to meet strict SAE specifications, ensuring durability and performance in HVAC applications. The EPDM material and protective sleeve contribute to the hose's resistance to heat, chemicals, and abrasion. While specific warranty details are not provided, Dayco products typically adhere to industry standards for quality and reliability.