Dayco 87864 HVAC Heater Hose

Reliable HVAC Heater Hose for Chevrolet and Ford Vehicles

The Dayco Small I.D. Heater Hose 87864 is engineered to provide dependable performance in your vehicle's heating system. Designed for select Chevrolet, Ford, GMC, Isuzu, Oldsmobile, and Saab models, this hose ensures proper coolant flow and system integrity.

• 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 9 inches for precise fitment
• Compatible with multiple models including Chevrolet Colorado, Ford F-150, and GMC Envoy

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

The Small I.D. Heater Hose line by Dayco focuses on providing high-quality hoses with smaller inside diameters suitable for specific HVAC applications. This product line emphasizes material durability and compliance with SAE standards, ensuring reliable performance in heating systems across various vehicle makes and models.

Product Details and Specifications

The Dayco 87864 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, making it a single I.D. hose designed for precise HVAC system connections. The hose does not include a heat shield or protective sleeve, which is typical for this type of application. It complies with SAE J20R3 Class D-1 and SAE J1684 Type EC standards, ensuring it meets industry requirements for heater hoses. The trunk height of 9 inches supports proper routing and fitment in compatible vehicles.

Compatible Vehicles and Common Applications

• Chevrolet models: Colorado, Canyon, Trailblazer, Trailblazer EXT
• Ford models: F-150, F-150 Heritage, F-250
• GMC models: Envoy, Envoy XL, Envoy XUV, Canyon
• Isuzu models: i-280, i-350, Ascender, Bravada
• Oldsmobile and Saab models including 9-7x

This heater hose is used primarily in the HVAC system to transport heated coolant from the engine to the heater core, enabling cabin heating.

Common Issues Addressed by This Heater Hose

• Leaking or cracked heater hoses causing coolant loss
• Reduced heater core performance due to hose deterioration
• Overheating issues related to compromised coolant flow
• Replacement of worn or brittle hoses in older vehicles
• Maintaining proper HVAC system pressure and temperature regulation

Installation Notes and Tips

Ensure the engine is cool before beginning installation to avoid burns from hot coolant. Verify hose diameter and length match the original part for proper fitment. Inspect hose connections and clamps for corrosion or damage and replace if necessary. Properly route the hose to avoid kinks or contact with moving parts. No heat shield or protective sleeve is included, so take care to avoid exposure to excessive heat sources during installation.

Quality Assurance and Warranty

Dayco heater hoses are manufactured to meet SAE specifications, ensuring consistent quality and durability. While specific warranty details for part number 87864 are not provided, Dayco products typically adhere to industry standards for reliability and performance. For detailed warranty information, consult the manufacturer or authorized distributor.