Dayco 72319 Radiator Coolant Hose - Lower

Overview of Dayco Curved Radiator Hose 72319

The Dayco Curved Radiator Hose 72319 is designed for reliable coolant flow in select Nissan and Suzuki 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 color with a curved design for precise fitment
• Inside diameter of 1 5/16 inches on both ends
• Outside diameter of 1 5/8 inches on both ends
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Single inside diameter hose type
• Trunk height of 21 1/2 inches
• Compatible with Nissan Equator, Frontier, Pathfinder, Xterra and Suzuki models

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on delivering hoses with precise bends and dimensions to match specific vehicle cooling system layouts. This product line emphasizes durability and compliance with SAE standards, ensuring proper coolant flow and fitment without the need for modifications. The 72319 part exemplifies this approach with its exact inside and outside diameters and material composition.

Detailed Product Description

This radiator coolant hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals, making it suitable for automotive cooling systems. The hose features a curved design that facilitates installation in tight engine compartments of Nissan and Suzuki vehicles such as the Frontier and Pathfinder. Both ends have an inside diameter of 1 5/16 inches and an outside diameter of 1 5/8 inches, ensuring a secure connection to radiator and engine fittings. The hose does not include a heat shield or protective sleeve, which is typical for this type of radiator hose.

Common Applications and Issues Addressed

• Replacement of worn or cracked radiator coolant hoses in Nissan Equator and Xterra models
• Resolving coolant leaks caused by hose degradation or swelling
• Maintaining proper coolant flow to prevent engine overheating
• Addressing fitment issues with original equipment hoses that have become brittle
• Ensuring compliance with SAE specifications for coolant hoses in Suzuki vehicles

Installation Notes and Tips

Before installation, inspect the radiator and engine fittings for corrosion or damage. Ensure the hose clamps are in good condition and properly tightened to prevent leaks. The curved design of the Dayco 72319 hose requires alignment with the vehicle’s cooling system layout, so avoid forcing the hose into place. It is recommended to drain the coolant system before removal and refill with the appropriate coolant after installation.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 72319 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, Dayco products generally adhere to industry quality controls and are backed by the brand’s commitment to automotive component reliability.