Dayco 71799 Radiator Coolant Hose - Upper

Overview of Dayco Curved Radiator Hose 71799

The Dayco Curved Radiator Hose 71799 is designed specifically for Toyota 4Runner and Tacoma models. Constructed from durable EPDM material, this radiator coolant hose ensures reliable performance under typical engine cooling system conditions.

• Material: EPDM for heat and chemical resistance
• Color: Black
• End 1 and End 2 Inside Diameter: 1 5/16 inches
• Hose Type: Single inside diameter hose
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Trunk Height: 13 inches
• Compatible with Toyota 4Runner and Tacoma models

Detailed Product Description

The Dayco Curved Radiator Hose 71799 is engineered to maintain optimal coolant flow within the radiator system of select Toyota vehicles. Made from EPDM (ethylene propylene diene monomer), this hose offers resistance to heat, ozone, and coolant chemicals, which are critical for maintaining durability and preventing premature failure. Both ends of the hose have an inside diameter of 1 5/16 inches, ensuring a precise fit for the cooling system connections on Toyota 4Runner and Tacoma models. This single inside diameter hose does not include a heat shield or protective sleeve, focusing on straightforward, reliable coolant transfer.

Applications and Common Issues Addressed

• Replacement of worn or cracked radiator coolant hoses
• Prevention of coolant leaks that can cause engine overheating
• Restoration of proper coolant flow in Toyota 4Runner and Tacoma cooling systems
• Addressing hose swelling or softening due to heat exposure
• Mitigating coolant contamination from hose material degradation

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 71799, ensure the engine is cool to avoid burns or injury. Verify that the hose diameter matches the radiator and engine fittings precisely. Use appropriate clamps to secure the hose ends and check for any leaks after installation. Since this hose does not include a heat shield or protective sleeve, inspect surrounding components for potential abrasion points and ensure proper routing to avoid contact with hot engine parts.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71799 to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring compliance with industry requirements for radiator coolant hoses. The EPDM material selection supports long-term durability in automotive cooling systems. Warranty details should be confirmed with the point of purchase or manufacturer documentation.