Dayco 70722 Radiator Coolant Hose - Lower

Overview of Dayco Curved Radiator Hose 70722

The Dayco Curved Radiator Hose 70722 is designed to provide reliable coolant flow in automotive cooling systems. Engineered with durable EPDM material, this dual inside diameter hose supports efficient heat transfer and fluid circulation in various vehicle applications.

• Constructed from high-quality EPDM for heat and chemical resistance
• Dual inside diameters: 1 3/4 inch and 1 1/2 inch ends for versatile fitment
• Complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards
• Black color for standard OEM appearance
• Trunk height of 12 inches suitable for curved radiator hose routing

Detailed Product Description

The Dayco Curved Radiator Hose 70722 is a dual inside diameter hose made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. The hose features a 1 3/4 inch inside diameter on one end and a 1 1/2 inch inside diameter on the other, allowing it to connect different sized radiator or engine fittings. This hose does not include a heat shield or protective sleeve, making it suitable for applications where additional protection is not required. It meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications, ensuring compliance with industry standards for coolant hoses. The 12-inch trunk height accommodates curved routing paths commonly found in automotive cooling systems.

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on hoses designed with specific bends and dual inside diameters to fit complex radiator and engine configurations. This product line addresses the need for precise hose shapes that maintain coolant flow without kinking or stress, supporting reliable engine temperature regulation. The 70722 part is a representative model within this line, offering a balance of durability and fitment versatility.

Common Applications and Issues Addressed

• Replacement of worn or cracked radiator coolant hoses in vehicles requiring dual diameter connections
• Resolving coolant leaks caused by hose degradation or improper fit
• Addressing overheating issues due to restricted coolant flow from damaged hoses
• Maintaining proper coolant circulation in curved or tight engine bay spaces
• Ensuring compliance with OEM specifications for radiator hose replacements

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 70722, ensure the hose ends match the radiator and engine fittings by verifying the 1 3/4 inch and 1 1/2 inch inside diameters. Avoid twisting or stretching the hose during installation to prevent premature wear. Use appropriate clamps to secure the hose and check for leaks after installation. Since this hose does not include a heat shield or protective sleeve, consider routing it away from high-heat components or adding external protection if necessary.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 70722 to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring material and performance reliability. While specific warranty details are not provided, Dayco products typically adhere to industry quality controls and are backed by the brand's commitment to automotive component standards.