Dayco 72391 Radiator Coolant Hose - Upper

Overview of Dayco Curved Radiator Hose 72391

The Dayco Curved Radiator Hose 72391 is designed for reliable coolant flow in select Ford, Lincoln, and Mercury vehicles. Engineered with durable EPDM material, this branched radiator coolant hose ensures consistent performance in demanding engine environments.

• Constructed from high-quality EPDM for heat and chemical resistance
• Branched hose design with three different inside diameters: 1 1/4", 1 1/2", and 9/32"
• Protective sleeve included for added durability
• Complies with SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Compatible with Ford Fusion, Lincoln Milan, and Mercury Zephyr models

Detailed Product Description

The Dayco Curved Radiator Hose 72391 is a branched radiator coolant hose made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and coolant chemicals. This hose features three distinct inside diameters—1 1/4 inches, 1 1/2 inches, and 9/32 inches—allowing it to connect multiple points within the cooling system efficiently. The outside diameters correspond accordingly to ensure a secure fit. A protective sleeve is included to guard against abrasion and premature wear, although this hose does not contain a heat shield. The hose meets SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring it meets industry requirements for coolant hoses. This part is specifically compatible with Ford Fusion, Lincoln Milan, and Mercury Zephyr vehicles, making it a precise replacement for the original equipment.

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on providing hoses with specialized shapes and branched configurations to accommodate complex cooling system layouts. This product line is engineered to maintain coolant flow integrity while fitting tightly within engine compartments that require curved or multi-connection hoses. The 72391 model exemplifies this with its branched design and multiple diameter ends, tailored for specific Ford, Lincoln, and Mercury applications.

Common Applications and Problem Solving

• Replacement of worn or cracked radiator coolant hoses in Ford Fusion, Lincoln Milan, and Mercury Zephyr
• Resolving coolant leaks caused by hose degradation or damage
• Addressing overheating issues due to compromised coolant flow
• Upgrading to a hose with protective sleeve for enhanced durability
• Ensuring compliance with OEM specifications for coolant system components

Installation Notes and Tips

• Verify hose diameters and fitment with your vehicle’s cooling system before installation
• Inspect all hose connections and clamps for wear and replace if necessary
• Ensure the protective sleeve is properly positioned to prevent abrasion
• Flush the cooling system if contamination or debris is present before installing the new hose
• Check for leaks after installation and during initial engine operation

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 72391 to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring durability and performance under typical operating conditions. While specific warranty details are not provided here, Dayco products generally adhere to strict quality control processes to maintain reliability in automotive cooling systems.