Dayco 71748 Radiator Coolant Hose - Lower - Pipe To Engine or Thermostat To Engine

Overview of Dayco Curved Radiator Hose 71748

The Dayco Curved Radiator Hose 71748 is designed for reliable coolant flow in select Nissan and INFINITI vehicles. Engineered with durable EPDM material, this radiator coolant hose ensures consistent performance under typical operating conditions.

• Constructed from EPDM for heat and chemical resistance
• Black single inside diameter hose with 1 1/16 inch ends
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Compatible with Nissan Sentra, Maxima, NX and INFINITI I30 models
• Trunk height dimension of 6 inches for precise fitment

Detailed Product Description

The Dayco Curved Radiator Hose 71748 is a single inside diameter hose made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. Both ends of the hose have an inside diameter of 1 1/16 inches, ensuring a secure connection to the radiator and engine components. This hose does not include a heat shield or protective sleeve, making it suitable for applications where additional protection is not required. It complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive coolant systems.

The Curved Radiator Hose product line from Dayco focuses on delivering hoses shaped to fit specific vehicle cooling system layouts, reducing the need for modifications during installation. This hose’s curved design helps maintain proper coolant flow and fitment in the cooling system of compatible Nissan and INFINITI models.

Compatible Vehicles and Applications

• INFINITI I30
• Nissan Maxima
• Nissan NX
• Nissan Sentra

This radiator coolant hose is intended for use in the cooling systems of these vehicles, replacing worn or damaged hoses to maintain engine temperature regulation.

Common Issues Addressed by Dayco Radiator Hose 71748

• Coolant leaks due to cracked or brittle hoses
• Overheating caused by restricted coolant flow
• Swelling or softening of old hoses from heat exposure
• Improper fitment from generic or incorrect hose replacements
• Coolant contamination from hose material degradation

Installation Notes and Tips

• Ensure engine is cool before removing the old hose
• Check hose clamps and replace if corroded or damaged
• Verify the hose routing matches the original to avoid kinks
• Inspect radiator and engine fittings for damage or corrosion
• After installation, pressure test the cooling system for leaks

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71748 to meet industry SAE standards, ensuring reliable performance in compatible Nissan and INFINITI vehicles. While specific warranty details are not provided, Dayco products typically come with manufacturer-backed quality assurance to support durability and fitment.