Dayco 71999 Radiator Coolant Hose - Lower

Overview of Dayco Curved Radiator Hose 71999

The Dayco Curved Radiator Hose 71999 is designed specifically for cooling system applications in select Ford, Lincoln, and Mercury vehicles. Engineered with durable EPDM material, this branched radiator coolant hose ensures reliable performance for models like the Crown Victoria, Grand Marquis, and Town Car.

• Constructed from heat-resistant EPDM material
• Branched hose design with three connection points
• Inside diameters: 1 7/16" (Ends 1 & 2), 15/16" (End 3)
• Outside diameters: 1 13/16" (Ends 1 & 2)
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Black color for standard OEM appearance
• Trunk height dimension: 27

Detailed Product Description

The Dayco Curved Radiator Hose 71999 is a branched radiator coolant hose constructed from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and coolant chemicals. This hose features three connection points with precise inside diameters of 1 7/16 inches on both End 1 and End 2, and 15/16 inches on End 3, allowing for secure fitment within the cooling system. The outside diameters of Ends 1 and 2 measure 1 13/16 inches, ensuring compatibility with OEM clamps and fittings. Designed without a heat shield or protective sleeve, this hose is intended for applications where additional protection is not required. It complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive coolant systems.

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on providing shaped and branched hoses tailored to specific vehicle cooling system layouts. This product line addresses the need for precise hose geometry to fit complex engine compartments, reducing installation difficulty and improving coolant flow efficiency. The 71999 part exemplifies this approach by offering a branched design compatible with multiple Ford, Lincoln, and Mercury full-size sedan models.

Compatible Vehicles and Common Applications

• Ford Crown Victoria radiator coolant hose replacement
• Lincoln Town Car cooling system hose repair
• Mercury Grand Marquis radiator hose maintenance
• Replacement for branched radiator hoses in Ford, Lincoln, Mercury models
• Addressing coolant leaks, hose cracks, and cooling system failures

Installation Notes and Tips

• Ensure the cooling system is cool before removing the old hose
• Verify hose diameters and branch locations match the original part
• Use appropriate clamps rated for radiator hoses to secure connections
• Inspect surrounding components for wear or damage during installation
• Properly route the hose to avoid kinks or contact with moving parts

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71999 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 in Ford Crown Victoria, Lincoln Town Car, and Mercury Grand Marquis vehicles.