Dayco 71779 Radiator Coolant Hose - Upper

Overview of Dayco Curved Radiator Hose 71779

The Dayco Curved Radiator Hose 71779 is designed to provide reliable coolant flow for select Buick, Oldsmobile, and Pontiac vehicles. Engineered with durable EPDM material, this radiator coolant hose ensures consistent performance in demanding engine environments.

• Constructed from high-quality EPDM for heat and chemical resistance
• Black single inside diameter hose with 1 9/32 inch ends
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Trunk height of 15 inches for precise fitment
• Compatible with Buick 88, 98, Oldsmobile LSS, and Pontiac Bonneville, LeSabre, Park Avenue, and Regency models

Detailed Product Description

The Dayco Curved Radiator Hose 71779 is a single inside diameter hose designed to maintain efficient coolant circulation within the radiator system. Made from EPDM (ethylene propylene diene monomer), this hose offers excellent resistance to heat, ozone, and automotive fluids, which helps extend its service life. Both ends of the hose have an inside diameter of 1 9/32 inches, ensuring a secure connection to the radiator and engine fittings. The hose does not include a heat shield or protective sleeve, focusing on a straightforward, durable design. It complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive cooling systems.

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line specializes in hoses shaped to fit specific radiator and engine configurations, providing a precise fit and reliable coolant flow. This product line addresses the need for hoses that accommodate the unique routing and space constraints found in various vehicle models, including those from Buick, Oldsmobile, and Pontiac. The 71779 part is part of this line, offering a curved design that matches factory specifications for the listed vehicles.

Applications and Common Issues Addressed

• Replacement of worn or cracked radiator coolant hoses
• Prevention of coolant leaks due to hose degradation
• Restoration of proper coolant flow in Buick 88 and 98 models
• Ensuring reliable cooling system performance in Pontiac Bonneville and LeSabre
• Maintaining engine temperature control in Oldsmobile LSS and Park Avenue

Installation Notes and Tips

• Verify hose dimensions and fitment with your vehicle model before installation
• Ensure all clamps and connections are secure to prevent leaks
• Inspect surrounding components for wear or damage during replacement
• Drain coolant system prior to hose removal to avoid spills
• Use compatible coolant fluids as recommended by the vehicle manufacturer

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71779 to meet industry standards SAE J20R4 Class D-1 and SAE J1684 Type EC, ensuring durability and performance. While specific warranty details are not provided, Dayco products typically adhere to strict quality control processes to maintain reliability in automotive cooling systems.