Dayco 71220 Radiator Coolant Hose - Lower or Upper - Pipe To Radiator

Overview of Dayco Curved Radiator Hose 71220

The Dayco Curved Radiator Hose 71220 is designed to provide reliable coolant flow in automotive cooling systems. Made from durable EPDM material, this black radiator coolant hose features a consistent 2 1/2 inch inside diameter on both ends, ensuring a secure fit for compatible vehicles.

• Constructed from high-quality EPDM for heat and chemical resistance
• Black color for standard OEM appearance
• Both ends have a 2 1/2 inch inside diameter for uniform connection
• Single inside diameter hose type for straightforward installation
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Trunk height of 15 inches suitable for specific radiator configurations
• Does not include heat shield or protective sleeve

Detailed Product Description

The Dayco Curved Radiator Hose line is engineered to meet stringent automotive cooling system requirements. This particular hose, part number 71220, is manufactured from EPDM (ethylene propylene diene monomer) rubber, known for its excellent resistance to heat, ozone, and coolant chemicals. The hose maintains a consistent 2 1/2 inch inside diameter on both ends, making it compatible with radiator and engine fittings requiring this size. It is a single inside diameter hose, simplifying installation and ensuring a tight seal. The hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, which define performance criteria for coolant hoses in automotive applications. The 15-inch trunk height allows it to fit specific vehicle cooling system layouts without additional modifications. This hose does not include a heat shield or protective sleeve, so it is intended for applications where such protection is not required.

Common Applications and Issues Addressed

• Replacement of worn or cracked radiator coolant hoses in vehicles requiring 2 1/2 inch diameter hoses
• Resolving coolant leaks caused by hose degradation or swelling
• Maintaining proper coolant flow to prevent engine overheating
• Addressing hose failures due to exposure to heat and chemicals
• Ensuring compatibility with cooling systems that meet SAE J20R4 Class D-1 standards

Installation Notes and Tips

Before installation, verify that the hose dimensions match the vehicle’s radiator and engine fittings. Ensure clamps are properly tightened to prevent leaks but avoid over-tightening, which can damage the hose. Since this hose does not include a heat shield or protective sleeve, consider the routing carefully to avoid contact with sharp edges or excessive heat sources. Inspect the cooling system for any other worn components during replacement to maintain overall system integrity.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71220 to meet industry SAE specifications, ensuring consistent performance and durability. While specific warranty details are not provided, Dayco products typically adhere to strict quality control standards to support reliable operation in automotive cooling systems.