Dayco 87769 HVAC Heater Hose - Auxiliary Heater To Auxiliary Heater Pipe, Heater Outlet or Heater To Tee

Reliable HVAC Heater Hose for Acura, Chevrolet, GMC, Honda, and Isuzu

The Dayco Small I.D. Heater Hose 87769 is engineered to meet the specific needs of various vehicle models including the Acura MDX and Pilot, Chevrolet S10, GMC Sonoma, and Isuzu Hombre. Designed with durability and precise fitment in mind, this hose ensures efficient heater core performance in your vehicle's HVAC system.

• Constructed from durable EPDM material for heat and chemical resistance
• Black single inside diameter hose with 5/8 inch ID on both ends
• Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
• Trunk height of 8 inches for proper routing and fit
• Compatible with multiple makes and models including Acura MDX, Honda Pilot, Chevrolet S10, GMC Sonoma, and Isuzu Hombre

About the Dayco Small I.D. Heater Hose Product Line

The Small I.D. Heater Hose line by Dayco focuses on providing precise diameter hoses designed for HVAC systems requiring smaller inside diameters. This product line emphasizes compliance with SAE standards to ensure reliable performance and compatibility with a range of vehicle applications. The 87769 part number is a single inside diameter hose that fits specific models requiring a 5/8 inch ID hose, making it a suitable replacement for OEM heater hoses in these vehicles.

Product Details and Specifications

The Dayco 87769 heater hose is made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids. Both ends of the hose have a 5/8 inch inside diameter, designed as a single I.D. hose without additional heat shields or protective sleeves. It complies with SAE J20R3 Class D-1 and SAE J1684 Type EC standards, ensuring it meets industry requirements for heater hoses. The hose’s trunk height is 8 inches, providing the necessary length and flexibility for proper installation in compatible vehicles.

Common Applications and Issues Addressed

• Replacement of worn or cracked heater hoses in Acura MDX and Pilot models
• Restoring proper coolant flow in Chevrolet S10 and GMC Sonoma HVAC systems
• Preventing leaks and overheating issues in Isuzu Hombre heater core lines
• Maintaining HVAC system efficiency by ensuring secure hose connections
• Addressing hose degradation caused by heat and chemical exposure over time

Installation Notes and Tips

When installing the Dayco Small I.D. Heater Hose 87769, ensure the hose is routed without kinks or sharp bends to maintain coolant flow. Verify that the 5/8 inch inside diameter matches the vehicle’s heater core and engine fittings. Use appropriate clamps to secure the hose ends firmly, preventing leaks. It is recommended to inspect adjacent components for wear during replacement to avoid future HVAC system issues.

Quality Assurance and Warranty

Dayco manufactures the 87769 heater hose to meet strict SAE specifications, ensuring consistent quality and durability. While specific warranty details are not provided, Dayco products typically adhere to industry standards for reliability and performance. This hose is designed to provide dependable service in the HVAC systems of Acura, Chevrolet, GMC, Honda, and Isuzu vehicles.