Dayco 71678 HVAC Heater Hose - Valve To Pipe

Overview of Dayco Curved Radiator Hose 71678

The Dayco Curved Radiator Hose 71678 is designed for reliable HVAC system performance in select Acura, Ford, Lincoln, and Mercury vehicles. Engineered with durable EPDM material, this black curved radiator hose ensures consistent heat resistance and flexibility for models like the Acura TL and Ford Taurus.

• Constructed from high-quality EPDM material for heat and ozone resistance
• Black single inside diameter hose with 5/8 inch diameter on both ends
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Trunk height of 18 inches for precise fitment
• Compatible with Acura TL, Ford Taurus, Lincoln Continental, and Mercury Sable

Detailed Product Description

The Dayco Curved Radiator Hose 71678 is part of the Curved Radiator Hose product line, which focuses on delivering hoses designed to fit specific HVAC applications requiring curved configurations. This hose is made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and weathering, making it suitable for HVAC heater hose applications. Both ends of the hose have a 5/8 inch inside diameter, ensuring a secure connection within the HVAC system. The hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive heating and cooling systems. Its black color and single inside diameter design provide a straightforward replacement option for the specified vehicle models.

Compatible Vehicles and Applications

This Dayco heater hose is compatible with several vehicle makes and models, including:

• Acura TL
• Ford Taurus
• Lincoln Continental
• Mercury Sable

It is specifically designed to replace HVAC heater hoses in these vehicles, ensuring proper coolant flow and temperature regulation within the heating system.

Common Issues Addressed by This Hose

• Cracked or leaking heater hoses causing coolant loss
• Reduced heater performance due to hose deterioration
• Swollen or softened hoses from heat exposure
• Improper fitment of generic hoses leading to leaks
• Failure to meet SAE specifications resulting in premature hose failure

Installation Notes and Tips

• Ensure the engine is cool before removing the old hose to avoid burns
• Check hose clamps and replace if corroded or damaged
• Verify the 5/8 inch inside diameter matches your vehicle’s hose connections
• Inspect surrounding components for wear or damage during installation
• Properly route the hose to avoid kinks or contact with moving parts

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71678 to meet strict SAE standards, ensuring durability and performance in HVAC applications. While specific warranty details are not provided, Dayco products typically come with manufacturer-backed quality assurance to support reliable operation in compatible Acura, Ford, Lincoln, and Mercury vehicles.