Dayco 72318 Radiator Coolant Hose - Lower or Upper - Pipe To Radiator

Overview of Dayco Curved Radiator Hose 72318

The Dayco Curved Radiator Hose 72318 is designed to provide reliable coolant flow for select Mazda, Mercury, and Volkswagen vehicles. Engineered with durable EPDM material, this dual inside diameter hose ensures a secure fit and efficient heat resistance for models like the Mazda Tribute, Mercury Mariner, and Volkswagen Jetta.

• Constructed from high-quality EPDM material for durability and heat resistance
• Dual inside diameter hose with 1 1/4 inch and 1 11/32 inch ends for precise fitment
• Complies with SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Black color for standard OEM appearance
• Trunk height of 11 inches for proper routing in engine bay

Detailed Product Description

The Dayco Curved Radiator Hose part number 72318 is a specialized radiator coolant hose designed to meet the cooling system requirements of specific Mazda, Mercury, and Volkswagen vehicles. Made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals, this hose maintains integrity under demanding engine conditions. The dual inside diameter design, with one end measuring 1 1/4 inches and the other 1 11/32 inches, allows for a secure connection between different radiator and engine fittings. This hose does not include a heat shield or protective sleeve, focusing on a straightforward, durable design that meets SAE J20R4 Class D-1 and SAE J1684 Type EC standards for coolant hoses.

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line offers hoses specifically shaped to accommodate complex engine bay layouts. This product line is engineered to provide precise fitment and reliable coolant flow in vehicles requiring hoses with varying diameters at each end. The 72318 model exemplifies this with its dual inside diameter design, making it suitable for applications in Mazda Tribute, Mercury Mariner, and Volkswagen Cabrio, Golf, and Jetta models.

Common Applications and Problem Solving

• Replacement of worn or cracked radiator coolant hoses in Mazda Tribute and Mercury Mariner
• Addressing coolant leaks caused by hose degradation in Volkswagen Golf and Jetta
• Resolving improper fitment issues due to varying hose diameters in Volkswagen Cabrio
• Maintaining optimal engine temperature by ensuring proper coolant flow
• Preventing overheating caused by damaged or collapsed radiator hoses

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 72318, ensure the hose ends match the radiator and engine fittings by verifying the 1 1/4 inch and 1 11/32 inch inside diameters. Use appropriate clamps to secure the hose and prevent leaks. Inspect the surrounding components for wear or damage during installation. Avoid twisting or stretching the hose to maintain its integrity and ensure proper coolant flow.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 72318 to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring compliance with industry requirements for coolant hoses. The EPDM material provides resistance to heat and chemical exposure typical in automotive cooling systems. Warranty details should be confirmed with the original equipment manufacturer or distributor, as Dayco typically offers coverage against manufacturing defects.