Dayco 70642 Radiator Coolant Hose - Upper

Overview of Dayco Curved Radiator Hose 70642

The Dayco Curved Radiator Hose 70642 is designed to provide reliable coolant flow for select Buick, Dodge, Ford, Mercury, and Plymouth vehicles. Engineered with durable EPDM material, this radiator coolant hose ensures consistent performance under typical engine operating conditions.

• Constructed from high-quality EPDM material for heat and chemical resistance
• Black single inside diameter hose with 1 1/2 inch diameter on both ends
• Complies with SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Trunk height measures 15 3/4 inches for precise fitment
• Compatible with multiple models including Mustang, Cougar, Riviera, B100, B150, B200, B250, B300, PB150, and PB250

Details on the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on delivering hoses shaped to fit specific radiator and engine configurations, reducing the need for modifications during installation. This product line emphasizes durability and compliance with industry SAE standards, ensuring hoses like the 70642 maintain coolant system integrity in various vehicle applications.

Product Specifications and Features

The Dayco 70642 radiator coolant hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. Both ends of the hose have an inside diameter of 1 1/2 inches, making it a single inside diameter hose suitable for direct replacement. The hose does not include a heat shield or protective sleeve, which is typical for this type of radiator hose. Its trunk height of 15 3/4 inches ensures proper routing and fitment in the engine bay.

Compatible Vehicles and Applications

• Buick models: B100, B150, B200, B250, B300
• Dodge models: PB150, PB250
• Ford models: Mustang, Cougar
• Mercury model: Cougar
• Plymouth model: Riviera

This hose is designed to maintain efficient coolant flow and prevent leaks in these specific vehicle models, supporting engine cooling system performance.

Common Issues Addressed by Dayco Radiator Hose 70642

• Replacement of cracked or brittle radiator hoses
• Resolving coolant leaks caused by hose wear or damage
• Preventing overheating due to compromised coolant flow
• Maintaining proper coolant system pressure and circulation
• Ensuring compatibility with factory radiator and engine connections

Installation Notes and Tips

Before installation, verify hose dimensions and fitment with your vehicle’s specifications. Ensure the engine is cool to avoid burns or pressure-related injuries. Remove the old hose carefully, inspecting clamps and surrounding components for wear. Use appropriate clamps to secure the Dayco 70642 hose, ensuring no kinks or twists that could restrict coolant flow.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 70642 to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring compliance with industry requirements for coolant hoses. The EPDM material provides durability against heat and chemical exposure typical in automotive cooling systems. Warranty details should be confirmed with the original equipment manufacturer or distributor.