Dayco 87788 HVAC Heater Hose - Heater To Pipe (Lower)

Overview of Dayco Small I.D. Heater Hose 87788

The Dayco Small I.D. Heater Hose 87788 is designed specifically for Nissan Frontier and Xterra models. This HVAC heater hose ensures reliable coolant flow within the heating system, maintaining optimal cabin temperature and engine performance.

• Constructed from durable EPDM material for heat and chemical resistance
• Dual inside diameter design with 5/8 inch and 3/4 inch ends
• Includes a protective sleeve for added durability
• Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
• Compatible with Nissan Frontier and Xterra HVAC systems

Detailed Product Description

The Dayco Small I.D. Heater Hose 87788 is part of the Small I.D. Heater Hose product line, which focuses on delivering precise fit and reliable performance for HVAC applications. This hose features a dual inside diameter design, with one end measuring 5/8 inch and the other 3/4 inch, allowing for seamless integration into the vehicle's heating system. Made from EPDM (ethylene propylene diene monomer) rubber, the hose offers excellent resistance to heat, ozone, and coolant chemicals, ensuring long service life. The black hose includes a protective sleeve to guard against abrasion and external damage, although it does not contain a heat shield. It complies with SAE J20R3 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive heating and cooling systems.

Applications and Common Issues Addressed

• Replacement of worn or cracked heater hoses in Nissan Frontier and Xterra models
• Resolving coolant leaks within the HVAC system
• Preventing overheating caused by restricted coolant flow
• Maintaining proper heater core function for consistent cabin heating
• Addressing hose degradation due to heat and chemical exposure

Installation Notes and Tips

When installing the Dayco Small I.D. Heater Hose 87788, ensure the correct orientation of the dual inside diameter ends to match the vehicle’s HVAC connections. Inspect hose clamps and surrounding components for wear and replace as necessary to prevent leaks. The protective sleeve should be positioned to minimize abrasion from adjacent parts. It is recommended to drain the cooling system before removal and refill with the appropriate coolant after installation. Proper installation will help maintain system integrity and prevent premature hose failure.

Quality Assurance and Warranty

Dayco manufactures the Small I.D. Heater Hose 87788 to meet stringent SAE specifications, including J20R3 Class D-1 and J1684 Type EC, ensuring compatibility and durability in Nissan Frontier and Xterra vehicles. The use of EPDM material and protective sleeve enhances resistance to heat and chemical exposure. While specific warranty details are not provided, Dayco products typically adhere to industry standards for quality and reliability.