Dayco 71555 Radiator Coolant Hose - Upper

Overview of Dayco Curved Radiator Hose 71555

The Dayco Curved Radiator Hose 71555 is designed for reliable coolant flow in select Ford and Mercury vehicles. Engineered with durable EPDM material, this dual inside diameter hose ensures a precise fit and long-lasting performance for models like the Mustang, Cougar, and Thunderbird.

• Constructed from high-quality EPDM for heat and chemical resistance
• Dual inside diameters: 1 7/32 inches and 1 5/16 inches for secure connections
• Black color for standard OEM appearance
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Trunk height of 17 inches for proper routing in engine bay
• Compatible with Ford and Mercury models including Capri, Fairmont, LTD, Marquis, Mustang, Thunderbird, and Zephyr

Details on the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on delivering hoses with precise bends and dual inside diameters to accommodate specific radiator and engine connections. This product line emphasizes material quality and compliance with SAE standards, ensuring hoses like the 71555 provide consistent coolant flow and fitment accuracy for various Ford and Mercury vehicles.

Product Description and Specifications

The Dayco 71555 radiator coolant hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. This hose features a dual inside diameter design, with one end measuring 1 7/32 inches and the other 1 5/16 inches, allowing it to connect securely between different sized fittings. The hose is black in color and has a trunk height of 17 inches, making it suitable for routing in the engine compartment without interference. It does not include a heat shield or protective sleeve, which is typical for this type of radiator hose. The hose meets SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive coolant systems.

Common Applications and Problem Solving

• Replacement of worn or cracked radiator coolant hoses in Ford and Mercury vehicles
• Resolving coolant leaks caused by hose degradation or improper fit
• Maintaining proper coolant flow to prevent engine overheating
• Ensuring secure connections between radiator and engine components with dual inside diameter design
• Restoring OEM fit and function in models such as Mustang, Cougar, and Thunderbird

Installation Notes and Tips

Before installation, verify the hose dimensions and fitment with your vehicle’s specifications. Ensure the engine is cool to avoid burns from hot coolant. Remove the old hose carefully, inspecting clamps and fittings for wear. Install the Dayco 71555 hose by sliding it onto the radiator and engine fittings, securing it with appropriate clamps. Check for leaks after installation and during initial engine operation.

Quality Assurance and Warranty

Dayco manufactures the 71555 radiator hose to meet strict SAE standards, ensuring durability and performance. The EPDM material provides resistance to heat and coolant chemicals, contributing to the hose’s longevity. While specific warranty details are not provided, Dayco products typically come with manufacturer-backed quality assurance to support reliable operation in compatible Ford and Mercury vehicles.