Dayco 72702 Radiator Coolant Hose - Upper

Overview of Dayco Curved Radiator Hose 72702

The Dayco Curved Radiator Hose 72702 is designed specifically for select BMW models, providing reliable coolant flow and durability. Engineered with EPDM material, this branched radiator coolant hose ensures consistent performance under demanding conditions.

• Constructed from durable EPDM material for heat and chemical resistance
• Branched hose design with three connection points for efficient coolant routing
• Compatible with multiple BMW models including 320i, 323Ci, 325i, 328i, and 330i series
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Black color with precise inside and outside diameters for secure fitment

Detailed Product Description

The Dayco Curved Radiator Hose 72702 is a branched radiator coolant hose constructed from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and coolant chemicals. This hose features three ends with inside diameters of 1 1/2 inches for End 1 and End 2, and 9/16 inch for End 3, allowing it to connect multiple points within the cooling system. The outside diameters are 2 1/16 inches for the larger ends and 9/16 inch for the smaller end, ensuring a secure and leak-free connection. With a trunk height of 13 1/2 inches, this hose is designed to fit precisely within the engine bay of compatible BMW vehicles.

The hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive coolant applications. It does not include a heat shield or protective sleeve, which is typical for this type of radiator hose.

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on providing shaped and branched hoses tailored to specific vehicle cooling system layouts. This product line addresses the need for precise hose routing in complex engine compartments, such as those found in BMW models. The 72702 part number is part of this line, offering a branched design that supports multiple coolant connections while maintaining durability and compliance with industry standards.

Compatible Vehicles and Common Applications

• BMW 320i, 323Ci, 323i
• BMW 325Ci, 325i, 325xi
• BMW 328Ci, 328i
• BMW 330Ci, 330i, 330xi

This radiator coolant hose is used to replace worn or damaged hoses that can cause coolant leaks, overheating, or reduced cooling system efficiency.

Issues Addressed by Dayco Radiator Coolant Hose 72702

• Coolant leaks due to cracked or brittle hoses
• Overheating caused by restricted or collapsed hoses
• Coolant contamination from hose degradation
• Improper coolant flow from ill-fitting or damaged hoses
• Replacement of original equipment hoses showing wear

Installation Notes and Tips

• Ensure engine is cool before removing old hose to prevent burns
• Check all hose connections and clamps for corrosion or damage
• Use proper clamps to secure the hose ends and prevent leaks
• Verify correct routing to avoid kinks or interference with other components
• Inspect cooling system for other worn parts during installation

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 72702 to meet SAE specifications, ensuring reliable performance in automotive cooling systems. While specific warranty details are not provided, Dayco products typically adhere to industry quality standards and are backed by manufacturer support for defects in material and workmanship.