Dayco 71904 Radiator Coolant Hose - Lower or Lower - Radiator To Pipe

Overview of Dayco Curved Radiator Hose 71904

The Dayco Curved Radiator Hose 71904 is designed specifically for Ford Explorer and Mercury Mountaineer models. This radiator coolant hose features a dual inside diameter design and is constructed from durable EPDM material to withstand typical engine cooling system conditions.

• Material: EPDM for heat and chemical resistance
• Color: Black
• End 1 Inside Diameter: 1 15/32 inches
• End 2 Inside Diameter: 1 23/32 inches
• Hose Type: Dual inside diameter hose
• SAE Specifications: SAE J20R4 Class D-1, SAE J1684 Type EC compliant
• Trunk Height: 10 inches
• Does not include heat shield or protective sleeve

Detailed Product Description

The Dayco Curved Radiator Hose 71904 is engineered to meet the cooling system requirements of Ford Explorer and Mercury Mountaineer vehicles. Made from EPDM (ethylene propylene diene monomer), this hose offers resistance to heat, ozone, and coolant chemicals, ensuring reliable performance under normal operating temperatures. The dual inside diameter design allows for a secure fit on varying radiator and engine connections, with end diameters measuring 1 15/32 inches and 1 23/32 inches respectively. This hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for coolant applications in automotive environments.

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on providing hoses with specific bends and dual inside diameters to accommodate complex radiator and engine configurations. This product line is designed to offer precise fitment and durability for cooling system components, reducing the need for modifications or additional fittings. The 71904 part number is a representative example tailored for Ford and Mercury SUVs requiring a curved hose with dual inside diameters.

Common Applications and Issues Addressed

• Replacement of worn or cracked radiator coolant hoses on Ford Explorer and Mercury Mountaineer
• Resolving coolant leaks caused by hose degradation or improper fit
• Maintaining proper coolant flow and pressure within the cooling system
• Preventing overheating due to compromised hose integrity
• Ensuring compatibility with factory radiator and engine connections

Installation Notes and Tips

• Verify hose end diameters match your vehicle’s radiator and engine fittings before installation
• Inspect clamps and surrounding components for wear and replace if necessary
• Ensure the hose is routed without kinks or sharp bends to maintain coolant flow
• Check for leaks after installation by running the engine to operating temperature
• Use appropriate tools to avoid damaging the hose during installation

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71904 to meet SAE specifications, ensuring consistent quality and performance. The EPDM material provides resistance to heat and coolant chemicals, contributing to the hose’s durability. While specific warranty details are not provided here, Dayco products typically come with manufacturer-backed quality guarantees. For warranty information, consult the product packaging or Dayco’s official resources.