Dayco 72347 Radiator Coolant Hose - Upper

Overview of Dayco Curved Radiator Hose 72347

The Dayco Curved Radiator Hose 72347 is designed specifically for heavy-duty Chevrolet and GMC trucks, including the Sierra 2500 HD and Silverado 3500 HD models. Engineered to meet SAE specifications, this radiator coolant hose ensures reliable performance in demanding cooling system applications.

• Constructed from durable EPDM material for heat and chemical resistance
• Black color with a curved design for precise fitment
• Inside diameter of 1 3/4 inches on both ends for consistent coolant flow
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC standards
• Single inside diameter hose type without heat shield or protective sleeve
• Trunk height of 18 inches suitable for specific heavy-duty truck configurations

Detailed Product Description

The Dayco Curved Radiator Hose 72347 is manufactured from EPDM (ethylene propylene diene monomer) rubber, a material known for its excellent resistance to heat, ozone, and coolant chemicals. This hose features a consistent 1 3/4 inch inside diameter on both ends, ensuring a secure and leak-free connection within the cooling system. Its curved design allows for optimal routing in the engine bay of Chevrolet and GMC heavy-duty trucks, including the Sierra 2500 HD Classic and Silverado 3500 Classic models. The hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC specifications, confirming its suitability for coolant system applications under high temperature and pressure conditions.

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose product line focuses on providing hoses with precise bends and dimensions tailored to specific vehicle applications. This line is engineered to replace original equipment hoses that require a curved shape for proper fitment and coolant flow. The 72347 part number is part of this line, offering a reliable solution for Chevrolet and GMC heavy-duty trucks that demand durability and exact fitment in their cooling systems.

Common Applications and Issues Addressed

• Replacement of worn or cracked radiator coolant hoses in Chevrolet Sierra 2500 HD and Silverado 3500 HD trucks
• Prevention of coolant leaks caused by hose degradation or improper fit
• Maintaining optimal engine temperature by ensuring proper coolant circulation
• Addressing overheating issues related to faulty or damaged radiator hoses
• Restoring cooling system integrity after engine repairs or maintenance

Installation Notes and Tips

• Verify compatibility with your specific Chevrolet or GMC model before installation
• Ensure both hose ends are clean and free of debris prior to fitting
• Use appropriate clamps rated for coolant hoses to secure connections
• Inspect surrounding components for wear or damage during installation
• Check for leaks after installation by running the engine to operating temperature

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 72347 to meet stringent SAE standards, ensuring durability and performance in heavy-duty cooling systems. While specific warranty details are not provided, Dayco products typically adhere to industry quality controls and are designed for long service life in Chevrolet and GMC Sierra and Silverado trucks.