Dayco 71543 Radiator Coolant Hose - Lower

Overview of Dayco Curved Radiator Hose 71543

The Dayco Curved Radiator Hose 71543 is designed specifically for Nissan 240SX models, providing reliable coolant flow and engine temperature regulation. Constructed from durable EPDM material, this radiator coolant hose ensures consistent performance under demanding conditions.

• Made from high-quality EPDM material for heat and chemical resistance
• Black color with a curved design for precise fitment
• Inside diameter of 1 11/32 inches on both ends for uniform coolant flow
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Single inside diameter hose type without heat shield or protective sleeve
• Trunk height of 14 inches suitable for specific radiator routing

Detailed Product Description

The Dayco Curved Radiator Hose 71543 is engineered to meet the cooling system requirements of the Nissan 240SX. Its EPDM construction offers excellent resistance to heat, ozone, and coolant chemicals, which helps maintain hose integrity over time. The hose features a consistent inside diameter of 1 11/32 inches on both ends, ensuring smooth coolant circulation without restrictions. This single inside diameter hose is designed without additional heat shields or protective sleeves, making it a straightforward replacement part that fits precisely within the vehicle’s cooling system layout.

As part of Dayco's Curved Radiator Hose line, this product is tailored to provide a reliable coolant pathway with a curved shape that matches the OEM routing. This design helps prevent kinks and ensures proper coolant flow, which is critical for engine temperature management in the Nissan 240SX.

Applications and Problem Solving

• Replacement for worn or cracked radiator coolant hoses on Nissan 240SX
• Addresses coolant leaks caused by hose degradation or damage
• Prevents overheating issues related to restricted or collapsed hoses
• Restores proper coolant flow to maintain engine operating temperature
• Eliminates coolant contamination from hose material breakdown

Installation Notes and Tips

Ensure the engine is cool before removing the old radiator hose to avoid burns. Inspect hose clamps and radiator connections for corrosion or damage and replace if necessary. Confirm the hose routing matches the original to prevent kinks or interference with other engine components. The Dayco 71543 hose installs as a direct replacement for Nissan 240SX models requiring a curved radiator coolant hose with 1 11/32 inch inside diameters.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 71543 to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring compliance with industry cooling system requirements. The EPDM material and construction quality provide durability and resistance to typical automotive coolant system conditions. Warranty details should be confirmed with the original product documentation or supplier.