Dayco 70559 Radiator Coolant Hose - Lower, Upper - Pipe To Radiator or Upper - Radiator To Pipe

Overview of Dayco Curved Radiator Hose 70559

The Dayco Curved Radiator Hose 70559 is designed specifically for select Oldsmobile models, including the 98, Cutlass, Cutlass Supreme, Delta 88, and Toronado. Engineered with durable EPDM material, this dual inside diameter hose ensures reliable coolant flow and heat resistance in your vehicle's cooling system.

• Constructed from high-quality EPDM for heat and chemical resistance
• Dual inside diameter design: 1 3/4 inch and 2 inch ends
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Black color for standard OEM appearance
• Trunk height of 17 inches for precise fitment

Detailed Product Description

The Dayco Curved Radiator Hose 70559 is a radiator coolant hose crafted from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and coolant chemicals. This hose features a dual inside diameter design, with one end measuring 1 3/4 inches and the other 2 inches, allowing for a secure and proper connection between different radiator components. It complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring it meets industry requirements for durability and performance. The hose is black in color and does not include a heat shield or protective sleeve, focusing on essential functionality and fitment. With a trunk height of 17 inches, it is tailored to fit the cooling systems of Oldsmobile 98, Cutlass, Cutlass Supreme, Delta 88, and Toronado models.

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line is designed to provide precise fitment and reliable performance for specific vehicle applications. This product line focuses on hoses with curved shapes and dual inside diameters to accommodate complex radiator and engine configurations. The 70559 part number is part of this line, offering a tailored solution for Oldsmobile vehicles requiring a curved radiator hose with specific dimensional and material properties.

Common Applications and Problem Solving

• Replacement of worn or cracked radiator coolant hoses in Oldsmobile 98, Cutlass, Cutlass Supreme, Delta 88, and Toronado
• Prevention of coolant leaks caused by hose degradation or improper fit
• Maintaining optimal engine temperature by ensuring proper coolant flow
• Addressing hose swelling or softening due to heat exposure
• Resolving coolant system failures related to hose material breakdown

Installation Notes and Tips

Ensure the engine is cool before removing the old radiator hose to avoid burns. Verify the hose ends match the specified inside diameters of 1 3/4 inch and 2 inches for proper fit. Use appropriate clamps to secure the hose and prevent leaks. Inspect surrounding components for wear or damage during installation. No heat shield or protective sleeve is included, so take care to route the hose away from excessive heat sources.

Quality Assurance

Dayco manufactures the Curved Radiator Hose 70559 to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring compliance with industry performance and durability requirements. The EPDM material provides resistance to heat, ozone, and coolant chemicals, contributing to the hose's longevity. Warranty information is not specified for this product.