Dayco 71539 Radiator Coolant Hose - Lower or Lower - Pipe-2 To Intake Manifold

Overview of Dayco Curved Radiator Hose 71539

The Dayco Curved Radiator Hose 71539 is designed to provide reliable coolant flow for select Ford, Mercedes-Benz, and Mercury vehicles. Engineered with durable EPDM material, this radiator coolant hose ensures consistent performance in demanding engine environments.

• Constructed from high-quality EPDM material for heat and chemical resistance
• Black color with a curved design for precise fitment
• Inside diameter of 1 5/16 inches on both ends for uniform coolant flow
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Single inside diameter hose without heat shield or protective sleeve
• Compatible with Ford Taurus and Sable, Mercedes-Benz 260E, 300CE, 300E, 300SE, 300SEL, 300TE, E320, and Mercury models

Dayco Curved Radiator Hose Product Line Details

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 emphasizes durability and compliance with SAE standards, ensuring that hoses like the 71539 maintain coolant integrity and fitment accuracy without the need for additional heat shields or protective sleeves.

Detailed Product Description

The Dayco 71539 radiator coolant hose is manufactured 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 5/16 inches, making it a single i.d. hose designed to maintain consistent coolant flow. The hose’s black color and curved shape allow it to fit precisely within the engine bay of compatible vehicles without interference. It complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, which specify performance requirements for coolant hoses in automotive applications. This hose does not include a heat shield or protective sleeve, which is suitable for applications where additional protection is not required.

Applications and Common Issues Addressed

• Replacement of worn or cracked radiator coolant hoses in Ford Taurus and Sable models
• Restoration of coolant flow integrity in Mercedes-Benz 260E, 300CE, 300E, 300SE, 300SEL, 300TE, and E320 vehicles
• Addressing coolant leaks caused by hose degradation or swelling
• Preventing overheating issues related to compromised radiator hoses
• Ensuring proper coolant circulation in Mercury vehicles requiring a 1 5/16 inch diameter hose

Installation Notes and Tips

• Verify hose dimensions and curvature against the vehicle’s original hose before installation
• Ensure all clamps and fittings are securely tightened to prevent leaks
• Inspect surrounding components for wear or damage during replacement
• Flush the cooling system if contamination or debris is present before installing the new hose
• Allow the engine to cool completely before removing the old hose to avoid burns

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71539 to meet stringent SAE specifications, ensuring durability and performance under typical operating conditions. While specific warranty details are not provided here, Dayco products generally come with manufacturer-backed quality assurance to support reliable service life when installed and maintained properly.