Dayco 72143 Radiator Coolant Hose - Upper

Overview of Dayco Curved Radiator Hose 72143

The Dayco Curved Radiator Hose 72143 is designed specifically for cooling system applications in INFINITI I35 and Nissan Maxima models. Constructed from durable EPDM material, this radiator coolant hose ensures reliable performance under typical engine operating 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
• Contains protective sleeve for added durability
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Trunk height: 11 25/64 inches

Detailed Product Description

The Dayco Curved Radiator Hose 72143 is engineered to maintain optimal coolant flow in the radiator system of INFINITI I35 and Nissan Maxima vehicles. Made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals, this hose supports long-term durability. Both ends have an inside diameter of 1 5/16 inches, ensuring a precise fit for the intended cooling system connections. The hose includes a protective sleeve to guard against abrasion and external damage, although it does not contain a heat shield. Compliance with SAE J20R4 Class D-1 and SAE J1684 Type EC standards confirms its suitability for automotive coolant applications.

About the Curved Radiator Hose Product Line

The Curved Radiator Hose line by Dayco focuses on providing hoses with specific bends and dimensions to fit OEM cooling system layouts accurately. This product line addresses the need for hoses that accommodate engine bay configurations without compromising coolant flow or hose integrity. The 72143 part number is a representative component within this line, tailored for select INFINITI and Nissan models.

Common Applications and Issues Addressed

• Replacement of worn or cracked radiator coolant hoses in INFINITI I35 and Nissan Maxima
• Prevention of coolant leaks caused by hose degradation
• Maintaining proper coolant circulation to avoid engine overheating
• Resolving fitment issues with incorrect or generic hoses
• Protecting cooling system integrity with a hose that meets SAE specifications

Installation Notes and Tips

Ensure the engine is cool before removing the old radiator hose to prevent burns. Verify that the hose ends match the 1 5/16 inch inside diameter connections on your vehicle. Inspect hose clamps and replace if necessary to secure the new hose properly. The protective sleeve on this hose helps reduce abrasion, but care should be taken to route the hose away from sharp edges or moving parts. Confirm compatibility with your INFINITI I35 or Nissan Maxima model year before installation.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 72143 to meet established SAE standards, ensuring consistent quality and performance. The use of EPDM material and protective sleeve enhances durability under typical operating conditions. Warranty details should be confirmed with the point of purchase or manufacturer documentation.