Dayco 72273 Radiator Coolant Hose - Upper

Overview of Dayco Curved Radiator Hose 72273

The Dayco Curved Radiator Hose 72273 is designed specifically for heavy-duty Chevrolet and GMC trucks, including the Sierra 2500 HD, Sierra 3500, Silverado 2500 HD, and Silverado 3500 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 with a trunk height of 19 inches

Detailed Product Description

The Dayco Curved Radiator Hose 72273 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, specifically the Sierra 2500 HD, Sierra 3500, Silverado 2500 HD, and Silverado 3500 models. The hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC specifications, confirming its suitability for coolant applications under high temperature and pressure conditions.

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 without the need for modifications. This product line is engineered to maintain coolant flow efficiency and durability, reducing the risk of leaks or premature failure. The 72273 part number is a representative example, designed to meet the exacting requirements of heavy-duty Chevrolet and GMC trucks.

Common Applications and Problem Solving

• Replacement of worn or cracked radiator coolant hoses in Chevrolet Sierra 2500 HD and Silverado 3500
• Addressing coolant leaks caused by hose degradation or swelling
• Resolving overheating issues due to restricted or collapsed hoses
• Upgrading to a hose that meets SAE specifications for improved reliability
• Ensuring proper coolant flow in heavy-duty GMC Sierra 3500 and Silverado 2500 HD trucks

Installation Notes and Tips

• Verify hose dimensions and fitment with your vehicle model before installation
• Ensure all clamps and connections are secure to prevent leaks
• Inspect surrounding components for wear or damage during replacement
• Flush the cooling system if necessary to remove debris before installing the new hose
• Allow the engine to cool completely before removing the old hose

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 72273 to meet industry standards, including SAE J20R4 Class D-1 and SAE J1684 Type EC, ensuring durability and performance in heavy-duty applications. While specific warranty details are not provided, Dayco products typically come with manufacturer-backed quality assurance to support reliable operation in Chevrolet and GMC truck cooling systems.