Dayco 70742 Radiator Coolant Hose - Lower or Upper

Overview of Dayco Curved Radiator Hose 70742

The Dayco Curved Radiator Hose 70742 is designed specifically for Buick LeSabre and Skylark models. This radiator coolant hose features a durable EPDM construction and a consistent 1 1/2 inch inside diameter on both ends, ensuring reliable coolant flow and fitment.

• Material: EPDM for heat and chemical resistance
• Color: Black
• End 1 Inside Diameter: 1 1/2 inches
• End 2 Inside Diameter: 1 1/2 inches
• Hose Type: Single inside diameter hose
• SAE Specifications: SAE J20R4 Class D-1, SAE J1684 Type EC
• Trunk Height: 18 inches
• Compatible with Buick LeSabre and Skylark

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line is engineered to provide precise fitment and durability for specific vehicle applications. This product line focuses on delivering hoses that meet SAE standards for coolant hoses, ensuring compatibility and performance in cooling systems. The curved design of this hose supports proper routing within the engine bay, reducing stress and potential leaks.

Detailed Product Description

The Dayco 70742 radiator coolant hose is constructed from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. Both ends of the hose have a 1 1/2 inch inside diameter, making it a single i.d. hose suitable for consistent coolant flow. The hose does not include a heat shield or protective sleeve, which is typical for this type of radiator hose. It complies with SAE J20R4 Class D-1 and SAE J1684 Type EC specifications, confirming its suitability for automotive cooling systems. With a trunk height of 18 inches, this hose is designed to fit the cooling system layout of Buick LeSabre and Skylark models accurately.

Common Applications and Issues Addressed

• Replacement of worn or cracked radiator coolant hoses in Buick LeSabre and Skylark
• Resolving coolant leaks caused by hose deterioration
• Maintaining proper coolant flow to prevent engine overheating
• Ensuring secure hose fitment to avoid coolant system pressure loss
• Addressing hose swelling or softening due to heat exposure

Installation Notes and Tips

• Verify hose dimensions and fitment with your Buick LeSabre or Skylark before installation
• Ensure the cooling system is cool and depressurized before removing the old hose
• Inspect hose clamps and replace if necessary to ensure a secure seal
• Route the hose according to factory specifications to avoid kinks or interference
• Check for leaks after installation by running the engine and monitoring coolant flow

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 70742 to meet SAE standards, ensuring reliable performance in automotive cooling systems. While specific warranty details are not provided, Dayco products typically adhere to industry quality controls and are backed by manufacturer support for defects in materials and workmanship.