Dayco 70749 Radiator Coolant Hose - Lower - Pipe To Radiator or Upper

Durable Radiator Coolant Hose for Select Vehicle Models

The Dayco Curved Radiator Hose 70749 is engineered to provide reliable coolant flow for a range of vehicles including Buick, Chevrolet, Ford, and more. Designed with EPDM material and a consistent 1 1/4 inch inside diameter, this hose ensures proper fit and function in your cooling system.

• Constructed from durable EPDM material for heat and chemical resistance
• Black color with a curved design for precise fitment
• Consistent 1 1/4 inch inside diameter on both ends
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Single inside diameter hose type without heat shield or protective sleeve
• Trunk height of 13 inches for proper routing

About the Dayco Curved Radiator Hose Product Line

The Curved Radiator Hose line by Dayco focuses on delivering hoses with precise bends and dimensions to match specific vehicle cooling system requirements. This product line is designed to maintain coolant flow efficiency while fitting tightly within engine compartments, reducing the risk of leaks or kinks. The 70749 part number is part of this line, offering a reliable replacement for various makes and models.

Product Details and Specifications

This radiator coolant hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals, making it suitable for long-term use in automotive cooling systems. Both ends of the hose have an inside diameter of 1 1/4 inches, ensuring compatibility with corresponding radiator and engine fittings. The hose does not include a heat shield or protective sleeve, which is typical for this type of single inside diameter hose. It complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive coolant applications.

Compatible Vehicles and Applications

• Buick models such as Century and Skylark
• Chevrolet models including Cavalier and Chevette
• Ford vehicles like Pinto and T1000
• Cadillac, Dodge, INFINITI, Mercury, Oldsmobile, Plymouth, and Pontiac models including Caravan, Grand Caravan, Voyager, and Sunbird

Common Issues Addressed by This Radiator Hose

• Replacement for cracked or leaking radiator coolant hoses
• Resolving coolant flow restrictions due to hose deformation
• Preventing overheating caused by faulty coolant circulation
• Eliminating coolant leaks that can damage engine components
• Maintaining proper coolant system pressure and temperature regulation

Installation Notes and Tips

Ensure the engine is cool before removing the old radiator hose to avoid burns. Verify that the hose diameter matches the radiator and engine fittings. Use appropriate clamps to secure the hose ends and check for leaks after installation. The curved design of the Dayco 70749 hose facilitates proper routing without kinks or stress points.

Quality Assurance and Warranty

Dayco manufactures this radiator coolant hose to meet SAE specifications, ensuring consistent quality and performance. While specific warranty details are not provided, Dayco products typically adhere to industry standards for durability and reliability in automotive applications.