Dayco 71987 Radiator Coolant Hose - Upper

Overview of Dayco Curved Radiator Hose 71987

The Dayco Curved Radiator Hose 71987 is designed specifically for Chevrolet and GMC trucks, including the Sierra 1500 and Silverado 1500 models. Engineered to meet SAE specifications, this radiator coolant hose ensures reliable performance in your vehicle's cooling system.

• Constructed from durable EPDM material for heat and chemical resistance
• Black color with a protective sleeve for added durability
• Single inside diameter hose with 1 9/32 inch ends on both sides
• Complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards
• Trunk height measures 24 1/8 inches for precise fitment

Detailed Product Description

The Dayco Curved Radiator Hose 71987 is a high-quality replacement hose designed to maintain optimal coolant flow in Chevrolet Sierra 1500 and Silverado 1500 trucks. Made from EPDM (ethylene propylene diene monomer) rubber, this hose offers excellent resistance to heat, ozone, and coolant chemicals, which helps extend the service life of the cooling system. The hose features a single inside diameter of 1 9/32 inches on both ends, ensuring a secure and leak-free connection. Additionally, it includes a protective sleeve to guard against abrasion and external damage, although it does not contain a heat shield.

About the Curved Radiator Hose Product Line

The Curved Radiator Hose line by Dayco focuses on providing hoses with precise bends and dimensions tailored for specific vehicle applications. This product line is engineered to meet strict SAE standards, ensuring compatibility and durability for cooling system components. The 71987 part is part of this line, offering a curved design that fits the cooling system layout of Chevrolet and GMC full-size pickup trucks.

Common Applications and Problem Solving

• Replacement for cracked or leaking radiator coolant hoses
• Solves overheating issues caused by coolant leaks
• Prevents coolant contamination from hose deterioration
• Addresses fitment problems with incorrect or generic hoses
• Restores proper coolant flow in Chevrolet Sierra 1500 and Silverado 1500 trucks

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 71987, ensure the engine is cool to avoid burns. Verify that the hose ends match the radiator and engine fittings with the 1 9/32 inch inside diameter. Use appropriate clamps to secure the hose and check for any signs of twisting or kinking during installation. The protective sleeve should face areas prone to abrasion for maximum protection.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71987 to meet SAE J20R4 Class D-1 and SAE J1684 Type EC specifications, ensuring compliance with industry standards for coolant hoses. While specific warranty details are not provided, Dayco products typically undergo rigorous quality control to maintain reliability and performance in automotive cooling systems.