Dayco 70647 HVAC Heater Hose

Overview of Dayco Curved Radiator Hose 70647

The Dayco Curved Radiator Hose 70647 is designed for reliable HVAC heater hose applications in a range of classic and modern vehicles. Engineered with durable EPDM material, this black single inside diameter hose ensures consistent performance in heating and cooling systems for select Buick, Chevrolet, Dodge, Ford, Jaguar, Mercury, Oldsmobile, Pontiac models.

• Constructed from EPDM material for heat and ozone resistance
• Black color with 3/4 inch inside diameter on both ends
• Single inside diameter hose type for straightforward installation
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Trunk height of 3 1/2 inches for proper fitment

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on providing hoses with precise bends and dimensions to fit specific HVAC systems. This product line is engineered to maintain proper coolant flow and heater function without the need for additional modifications. The 70647 hose is part of this line, offering a curved design that matches OEM specifications for a variety of vehicles, ensuring compatibility and durability.

Detailed Product Description

This HVAC heater hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and weathering, making it suitable for automotive heating and cooling systems. Both ends of the hose have a 3/4 inch inside diameter, designed as a single i.d. hose to simplify installation and ensure a secure fit. The hose does not include a heat shield or protective sleeve, which is typical for this type of HVAC hose. It complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive HVAC applications. The trunk height of 3 1/2 inches supports proper routing within the engine bay.

Compatible Vehicles and Applications

• Buick models including Skylark, Vanden Plas, and Century
• Chevrolet models such as Bel Air, Camaro, Caprice, El Camino, Impala, Malibu, Monte Carlo, Nova, and Suburban variants (C10, C20, K10, K20)
• Dodge models including Citation II and Tempo
• Ford models like Thunderbird, Cougar, and Topaz
• Jaguar XJ6
• Mercury Cougar
• Oldsmobile Cutlass Calais and Tempest
• Pontiac models including Firebird and others

Installation Notes and Tips

• Ensure the hose is routed without kinks or sharp bends to maintain coolant flow
• Verify the 3/4 inch inside diameter matches your vehicle’s HVAC hose connections
• Use appropriate clamps to secure the hose ends firmly
• Inspect surrounding components for wear or damage during installation
• Replace any worn or brittle hoses to prevent leaks and maintain system efficiency

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 70647 to meet strict SAE specifications, ensuring reliable performance in automotive HVAC systems. While specific warranty details are not provided, Dayco products typically adhere to industry standards for durability and quality. It is recommended to consult the product packaging or manufacturer for warranty information.