Dayco 71346 Radiator Coolant Hose - Lower - Pipe To Water Pump

Overview of Dayco Curved Radiator Hose 71346

The Dayco Curved Radiator Hose 71346 is designed specifically for Jaguar Vanden Plas and XJ6 models. This radiator coolant hose features a dual inside diameter design and is constructed from durable EPDM material to ensure reliable performance in cooling systems.

• Material: EPDM for heat and chemical resistance
• Color: Black
• End 1 Inside Diameter: 1 1/16 inches
• End 2 Inside Diameter: 2 1/16 inches
• Hose Type: Dual inside diameter hose
• SAE Specifications: SAE J20R4 Class D-1, SAE J1684 Type EC compliant
• Trunk Height: 15
• No heat shield or protective sleeve included

Details on the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on providing hoses with precise bends and dual inside diameters to accommodate specific radiator connections. This product line is engineered to meet SAE standards for coolant hoses, ensuring compatibility and durability for targeted vehicle applications such as the Jaguar Vanden Plas and XJ6. The 71346 part exemplifies this line by combining material quality and fitment accuracy.

Product Description and Specifications

The Dayco 71346 radiator coolant hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. Its black color is standard for radiator hoses, providing a professional appearance under the hood. The hose features two different inside diameters—1 1/16 inches on one end and 2 1/16 inches on the other—allowing it to connect components with varying sizes. This dual i.d. hose design is essential for proper fitment in the cooling system of Jaguar Vanden Plas and XJ6 vehicles. The hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC specifications, confirming its suitability for coolant applications. Note that this hose does not include a heat shield or protective sleeve, so installation should consider surrounding heat sources.

Common Applications and Problem Solving

• Replacement of worn or cracked radiator coolant hoses in Jaguar Vanden Plas and XJ6
• Resolving coolant leaks caused by hose degradation or improper fit
• Addressing overheating issues related to compromised coolant flow
• Ensuring proper coolant system pressure with SAE-compliant hose material
• Maintaining engine cooling efficiency through correct hose diameter and fitment

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 71346, verify the hose orientation to match the dual inside diameters with the corresponding radiator and engine fittings. Ensure clamps are securely tightened to prevent leaks but avoid over-tightening which can damage the hose. Inspect surrounding components for heat exposure since this hose does not include a heat shield or protective sleeve. It is recommended to replace any worn clamps or connectors during installation for optimal performance.

Quality Assurance and Warranty

Dayco manufactures the 71346 radiator coolant hose to meet SAE standards, ensuring consistent quality and durability. The EPDM material provides resistance to heat and coolant chemicals, contributing to a longer service life. While specific warranty details are not provided, Dayco products typically adhere to industry quality controls and are suitable for professional automotive repair and maintenance.