Dayco 72658 Radiator Coolant Hose - Upper - Radiator To Tee

Overview of Dayco Curved Radiator Hose 72658

The Dayco Curved Radiator Hose 72658 is designed specifically for Audi and Volkswagen vehicles, including Golf, Jetta, TT, and TT Quattro models. This radiator coolant hose is engineered to meet SAE J20R4 Class D-1 and SAE J1684 Type EC specifications, ensuring reliable performance in your vehicle's cooling system.

• Constructed from durable EPDM material for heat and chemical resistance
• Black color with a curved design for precise fitment
• Both ends have an inside diameter of 1 1/4 inches and outside diameter of 1 19/32 inches
• Single inside diameter hose type for consistent coolant flow
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC standards
• Trunk height of 10 inches for proper routing in engine bay

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on providing hoses with precise bends and dimensions to fit specific vehicle cooling systems. This product line is designed to replace original equipment hoses with exact fit and material quality, ensuring proper coolant flow and system integrity. The 72658 part is a single inside diameter hose made from EPDM, a material known for its resistance to heat, ozone, and coolant chemicals, making it suitable for Audi and Volkswagen applications.

Detailed Product Description

The Dayco 72658 radiator coolant hose is manufactured from EPDM, a synthetic rubber that withstands high temperatures and exposure to automotive fluids. Its black color and curved shape allow it to fit seamlessly within the engine bay of compatible Audi and Volkswagen models. Both ends of the hose have an inside diameter of 1 1/4 inches and an outside diameter of 1 19/32 inches, ensuring a secure connection to the radiator and engine components. This hose does not include a heat shield or protective sleeve, focusing on a straightforward replacement part that meets SAE J20R4 Class D-1 and SAE J1684 Type EC standards for durability and performance.

Common Applications and Issues Addressed

• Replacement of worn or cracked radiator coolant hoses in Audi Golf, Jetta, TT, and TT Quattro
• Resolving coolant leaks caused by hose deterioration
• Preventing overheating due to compromised coolant flow
• Maintaining proper engine temperature regulation
• Ensuring compatibility with factory cooling system specifications

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 72658, ensure the hose is properly seated on the radiator and engine fittings with secure clamps. Verify that the hose routing matches the original configuration to avoid kinks or interference with other engine components. Inspect the connecting points for corrosion or damage before installation. This hose is designed for direct replacement and does not include additional protective features, so careful handling during installation is recommended.

Quality Assurance

Dayco manufactures the 72658 radiator coolant hose to meet strict SAE specifications, including J20R4 Class D-1 and J1684 Type EC, ensuring material and dimensional quality. The EPDM construction provides resistance to heat, ozone, and coolant chemicals, contributing to long service life. While specific warranty details are not provided, Dayco products are generally backed by industry-standard quality controls and testing to meet OEM requirements.