Dayco 71998 Radiator Coolant Hose - Upper

Overview of Dayco Curved Radiator Hose 71998

The Dayco Curved Radiator Hose 71998 is designed for reliable cooling system performance in select Ford, Lincoln, and Mercury vehicles. Engineered with durable EPDM material, this radiator coolant hose ensures consistent heat resistance and flexibility for models like the Crown Victoria, Grand Marquis, and Town Car.

• Constructed from high-quality EPDM material for heat and chemical resistance
• Black single inside diameter hose with 1 7/16 inch diameter on both ends
• Complies with SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Trunk height of 19 1/2 inches for precise fitment
• Compatible with Ford Crown Victoria, Lincoln Town Car, and Mercury Grand Marquis

Details on the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on delivering hoses shaped to fit specific cooling system layouts, reducing stress and improving coolant flow. This product line includes hoses made from EPDM, known for its durability and resistance to heat and automotive fluids. The 71998 part is a single inside diameter hose designed to meet strict SAE standards, ensuring compatibility and performance in the specified vehicle models.

Technical Description and Specifications

This radiator coolant hose features a uniform inside diameter of 1 7/16 inches on both ends, facilitating a secure connection within the cooling system. The hose is black in color and constructed from EPDM, a synthetic rubber material that withstands high temperatures and exposure to coolant chemicals. It does not include a heat shield or protective sleeve, which is typical for this hose type. The trunk height measures 19 1/2 inches, matching the original equipment specifications for the intended Ford, Lincoln, and Mercury vehicles.

Applications and Problem Solving

• Replaces worn or cracked radiator hoses in Ford Crown Victoria, Lincoln Town Car, and Mercury Grand Marquis
• Prevents coolant leaks caused by hose degradation or swelling
• Maintains proper coolant flow to avoid engine overheating
• Restores cooling system integrity after damage or age-related wear
• Ensures compliance with SAE standards for safe and reliable operation

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 71998, ensure the hose is properly seated on the radiator and engine fittings to prevent leaks. Use appropriate clamps tightened to manufacturer specifications. Inspect adjacent components for wear or damage during replacement. Avoid twisting or stretching the hose to maintain its shape and function. This hose is designed for direct replacement in compatible Ford, Lincoln, and Mercury models.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71998 to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring durability and performance. The EPDM material provides resistance to heat and automotive fluids, contributing to long service life. Warranty details should be confirmed with the distributor or manufacturer, as coverage may vary.