Dayco 71811 Radiator Coolant Hose - Lower

Overview of Dayco Curved Radiator Hose 71811

The Dayco Curved Radiator Hose 71811 is designed to provide reliable coolant flow in automotive cooling systems. Constructed from durable EPDM material, this black single inside diameter hose ensures consistent performance under typical engine operating conditions.

• Made from EPDM material for heat and chemical resistance
• Black color for standard OEM appearance
• Both ends have a 2 1/4 inch inside diameter
• Single inside diameter hose type for straightforward installation
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Trunk height of 11 inches for proper fitment in curved radiator applications
• Does not include heat shield or protective sleeve

Detailed Product Description

The Dayco Curved Radiator Hose 71811 is engineered to meet stringent SAE standards, including J20R4 Class D-1 and J1684 Type EC, ensuring compatibility with many vehicle cooling systems requiring a curved radiator coolant hose. The EPDM (ethylene propylene diene monomer) rubber construction offers resistance to heat, ozone, and coolant chemicals, making it suitable for extended use in automotive environments. Both ends of the hose have an inside diameter of 2 1/4 inches, providing a consistent fit for radiator and engine connections. The hose’s black color matches OEM specifications, maintaining the original equipment look under the hood.

The Dayco Curved Radiator Hose product line focuses on delivering hoses shaped to accommodate specific radiator and engine layouts, reducing the need for modifications during installation. This particular hose, part number 71811, is designed with a trunk height of 11 inches, allowing it to fit curved radiator setups where space and routing are critical.

Common Applications and Problem Solving

• Replacement for cracked or leaking radiator coolant hoses
• Addressing coolant flow restrictions caused by collapsed or swollen hoses
• Resolving overheating issues related to coolant leaks or hose failure
• Maintaining proper coolant circulation in curved radiator configurations
• Preventing coolant contamination from deteriorated hose material

Installation Notes and Tips

Ensure the engine is cool before removing the old radiator hose to avoid burns. Verify that the hose diameter and trunk height match the vehicle’s radiator and engine fittings. Use appropriate clamps to secure the hose ends firmly, preventing leaks. Inspect adjacent components for wear or damage during installation. This hose does not include a heat shield or protective sleeve, so consider routing away from extreme heat sources if necessary.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71811 to meet SAE specifications, ensuring consistent quality and performance. The EPDM material is selected for durability and resistance to automotive fluids and heat. While specific warranty details are not provided, Dayco products typically adhere to industry standards for reliability and longevity.