Dayco 71303 Radiator Coolant Hose - Upper

Overview of Dayco Curved Radiator Hose 71303

The Dayco Curved Radiator Hose 71303 is designed for reliable coolant flow in select Ford, Lincoln, and Mercury vehicles. Engineered with durable EPDM material, this radiator coolant hose ensures consistent performance in demanding engine environments.

• Constructed from high-quality EPDM for heat and chemical resistance
• Black single inside diameter hose with 1 1/2 inch ends
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Trunk height of 18 1/2 inches for precise fitment
• Compatible with Ford Colony Park, Lincoln Town Car, Mercury Grand Marquis, and related models

Detailed Product Description

This Dayco Curved Radiator Hose 71303 is a single inside diameter hose made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. Both ends have an inside diameter of 1 1/2 inches, ensuring a secure connection to the radiator and engine fittings. The hose does not include a heat shield or protective sleeve, focusing on straightforward, reliable coolant transfer. Its trunk height of 18 1/2 inches is designed to match the specific routing requirements of compatible vehicles.

The Curved Radiator Hose product line from Dayco is engineered to provide precise fitment and durability for cooling system applications. This line emphasizes quality materials and adherence to SAE specifications, making it suitable for maintaining proper engine temperature in Ford, Lincoln, and Mercury vehicles.

Compatible Vehicles and Applications

• Ford Colony Park
• Lincoln Town Car
• Mercury Grand Marquis
• Ford LTD and LTD Crown Victoria

This hose is intended for use in the radiator coolant system to facilitate efficient heat exchange and prevent overheating.

Common Issues Addressed by This Radiator Hose

• Coolant leaks due to cracked or worn hoses
• Overheating caused by restricted coolant flow
• Swelling or softening of old hoses under heat stress
• Improper fitment leading to coolant loss
• Degradation from exposure to engine chemicals and heat

Installation Notes and Tips

• Ensure the engine is cool before removing the old hose
• Check hose clamps and replace if corroded or damaged
• Verify the hose routing matches the original to avoid kinks
• Lubricate hose ends with coolant or water for easier installation
• Inspect the radiator and engine fittings for damage before installation

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71303 to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring compliance with industry requirements for coolant hoses. While specific warranty details are not provided, Dayco products typically undergo rigorous quality control to maintain durability and performance in automotive cooling systems.