Dayco 72348 Radiator Coolant Hose - Lower

Overview of Dayco Curved Radiator Hose 72348

The Dayco Curved Radiator Hose 72348 is engineered for reliable cooling system performance in select Chevrolet and GMC trucks. Designed as a branched radiator coolant hose, it ensures efficient coolant flow and durability under demanding conditions.

• Constructed from durable EPDM material for heat and chemical resistance
• Branched hose design with multiple inside diameters for precise fitment
• Compatible with Chevrolet Silverado and GMC Sierra 2500 and 3500 HD models
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Black color for standard OEM appearance

Detailed Product Description

This Dayco Curved Radiator Hose 72348 is a branched radiator coolant hose made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and coolant chemicals. The hose features multiple inside diameters—2 inches, 2 11/32 inches, 5/8 inch, and 1 1/16 inches—allowing it to connect various points within the cooling system efficiently. The outside diameters correspond accordingly to ensure a secure seal and proper fit. With a trunk height of 36 1/2 inches, this hose is designed to accommodate the specific routing requirements of heavy-duty trucks.

The Curved Radiator Hose product line from Dayco focuses on providing hoses with precise bends and branches to match OEM configurations, reducing the need for modifications during installation. This hose line supports reliable coolant flow and system integrity in demanding applications such as the Chevrolet Silverado 2500 HD and 3500 HD series and GMC Sierra 2500 HD and 3500 HD trucks.

Compatible Vehicles and Applications

• Chevrolet Silverado 2500 HD and 3500 HD (including Classic models)
• GMC Sierra 2500 HD and 3500 HD (including Classic models)
• Designed for radiator coolant system use in heavy-duty trucks

Common Issues Addressed by Dayco Radiator Hose 72348

• Replacement of cracked or leaking radiator coolant hoses
• Resolving coolant flow restrictions due to hose deformation
• Addressing overheating caused by compromised coolant circulation
• Eliminating coolant leaks from worn or brittle hoses
• Maintaining proper coolant system pressure and integrity

Installation Notes and Tips

• Ensure the engine is cool before removing the old hose to prevent burns
• Verify hose routing matches OEM configuration to avoid kinks or stress points
• Use appropriate clamps to secure hose ends and prevent leaks
• Inspect adjoining components for wear or damage during installation
• Check for proper fitment of all four hose ends based on specified diameters

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 72348 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, ozone, and coolant chemicals, contributing to long service life. Warranty details should be confirmed with the original equipment manufacturer or distributor, as coverage may vary.