Dayco 70860 Radiator Coolant Hose - Upper

Overview of Dayco Curved Radiator Hose 70860

The Dayco Curved Radiator Hose 70860 is designed for reliable coolant flow in select Cadillac models. Engineered with durable EPDM material, this dual inside diameter hose supports efficient cooling system performance in vehicles like the Cadillac DeVille and Eldorado.

• Constructed from high-quality EPDM for heat and chemical resistance
• Dual inside diameters: 1 1/4 inch and 1 1/2 inch ends
• Complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards
• Black color for standard OEM appearance
• Trunk height of 27 1/4 inches for precise fitment

Detailed Product Description

The Dayco Curved Radiator Hose part number 70860 is a dual inside diameter hose specifically designed to meet the cooling system requirements of Cadillac Commercial Chassis, DeVille, Eldorado, and Fleetwood models. Made from EPDM (ethylene propylene diene monomer) rubber, this hose offers excellent resistance to heat, ozone, and coolant chemicals, ensuring durability and long service life. The hose features a curved design to accommodate specific engine bay layouts and has a trunk height of 27 1/4 inches, providing a precise fit for the intended applications. It does not include a heat shield or protective sleeve, consistent with original equipment specifications.

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on delivering hoses with specific bends and dual inside diameters to match OEM configurations. This product line is engineered to maintain proper coolant flow and fitment in vehicles requiring non-linear hose routing. The 70860 model exemplifies this approach by combining material durability with exact dimensional standards for Cadillac vehicles.

Common Applications and Issues Addressed

• Replacement for worn or cracked radiator coolant hoses in Cadillac DeVille and Eldorado
• Prevents coolant leaks caused by hose degradation or improper fit
• Addresses overheating issues related to compromised coolant flow
• Restores proper coolant circulation in Cadillac Commercial Chassis and Fleetwood models
• Eliminates coolant contamination from hose material breakdown

Installation Notes and Tips

• Ensure engine is cool before removing the old radiator hose
• Check hose clamps and replace if corroded or damaged
• Verify the correct orientation of the dual inside diameter ends during installation
• Inspect surrounding components for wear or damage during replacement
• Test coolant system pressure after installation to confirm leak-free fit

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 70860 to meet SAE J20R4 Class D-1 and SAE J1684 Type EC specifications, ensuring compliance with industry standards for coolant hoses. The EPDM material and construction methods provide resistance to heat and chemical exposure typical in automotive cooling systems. Warranty details should be confirmed with the point of purchase or manufacturer documentation.