Dayco 72687 Radiator Coolant Hose - Upper

Overview of Dayco Curved Radiator Hose 72687

The Dayco Curved Radiator Hose 72687 is designed specifically for Scion tC and xB models, providing reliable coolant flow and engine temperature regulation. Constructed from durable EPDM material, this branched radiator coolant hose ensures consistent performance under demanding conditions.

• Material: EPDM for heat and chemical resistance
• Color: Black
• Branched hose design with three ends
• End 1 and End 2 inside diameter: 1 5/16 inches
• End 3 inside diameter: 7/16 inches
• End 1 and End 2 outside diameter: 1 11/16 inches
• End 3 outside diameter: 3/4 inch
• Complies with SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Trunk height: 21 1/2 inches

Details on the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on delivering hoses with precise bends and branched configurations to fit specific vehicle cooling systems. This product line is engineered to meet stringent SAE standards, ensuring compatibility and durability for applications like the Scion tC and xB. The 72687 part exemplifies this with its branched design and EPDM construction, tailored to maintain coolant flow and resist degradation over time.

Product Description and Specifications

The Dayco 72687 radiator coolant hose is a branched hose featuring three connection points with carefully measured diameters to match the cooling system requirements of Scion tC and xB vehicles. Made from EPDM, it offers resistance to heat, ozone, and coolant chemicals, which helps maintain system integrity. The hose’s black color and SAE certification reflect its compliance with industry standards. Its trunk height of 21 1/2 inches supports proper routing within the engine bay without interference.

Common Applications and Problem Solving

• Replacement of worn or cracked radiator coolant hoses in Scion tC and xB
• Resolving coolant leaks caused by hose degradation or damage
• Maintaining proper coolant flow to prevent engine overheating
• Ensuring secure connections with branched hose design for complex cooling systems
• Upgrading to a hose meeting SAE J20R4 Class D-1 standards for improved reliability

Installation Notes and Tips

• Verify hose diameters and branch locations match your vehicle’s cooling system
• Inspect clamps and fittings for wear before installation
• Ensure proper routing to avoid kinks or contact with hot engine components
• Use coolant-compatible lubricant on hose ends for easier installation
• Check for leaks after installation and during initial engine operation

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 72687 to meet SAE J20R4 Class D-1 and SAE J1684 Type EC specifications, ensuring material and performance standards are met. The EPDM construction provides durability against heat and chemical exposure common in automotive cooling systems. Warranty details should be confirmed with the original equipment manufacturer or distributor, as coverage may vary.