Dayco 71690 Radiator Coolant Hose - Lower or Upper

Reliable Cooling with Dayco Curved Radiator Hose 71690

The Dayco Curved Radiator Hose 71690 is engineered to provide dependable coolant flow for select Buick, Chevrolet, and Oldsmobile vehicles. Designed 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 for precise fit
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Curved design tailored for specific radiator connections
• Compatible with Buick Century, Chevrolet Cutlass Ciera, Cutlass Cruiser, and Oldsmobile Tracker models

Durable EPDM Material and Precise Dimensions

This Dayco radiator coolant hose is made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and coolant chemicals. Both ends of the hose have an inside diameter of 1 9/32 inches, ensuring a secure and leak-free connection. The hose is a single inside diameter type without additional heat shields or protective sleeves, designed to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards for coolant hoses. With a trunk height of 13 inches, it fits the specific routing requirements of the compatible vehicle models.

About the Dayco Curved Radiator Hose Line

The Curved Radiator Hose line from Dayco focuses on delivering hoses with precise bends and dimensions to match factory specifications. This product line is designed to facilitate proper coolant flow and fitment in vehicles where straight hoses are insufficient. The 71690 part number represents a curved hose variant tailored for select GM vehicles, ensuring compatibility and reliable operation within the cooling system.

Compatible Vehicles and Common Applications

• Replacement radiator coolant hose for Buick Century models
• Suitable for Chevrolet Cutlass Ciera and Cutlass Cruiser cooling systems
• Fits Oldsmobile Tracker radiator connections
• Addresses coolant leaks caused by worn or cracked hoses
• Prevents overheating due to compromised coolant flow

Installation Notes and Tips

Ensure the engine is cool before removing the old radiator hose to avoid burns. Verify the inside diameter and length match the original hose to maintain proper fitment. Use appropriate clamps to secure the hose ends and check for leaks after installation. The absence of heat shields or protective sleeves means extra care should be taken to avoid contact with sharp edges or hot components during routing.

Quality Assurance and Warranty

Dayco manufactures this radiator coolant hose to meet SAE specifications, ensuring durability and performance under normal operating conditions. While specific warranty details are not provided, Dayco products typically adhere to industry standards for quality and reliability.