Dayco 71634 Radiator Coolant Hose - Upper

Overview of Dayco Curved Radiator Hose 71634

The Dayco Curved Radiator Hose 71634 is designed to provide reliable coolant flow for select Chrysler and Dodge vehicles. Engineered with durable EPDM material, this dual inside diameter hose ensures a secure fit and efficient heat resistance for models like the Chrysler Concorde, Dodge Intrepid, LHS, and New Yorker.

• Constructed from high-quality EPDM material for heat and chemical resistance
• Dual inside diameter design: 1 9/32 inches on one end and 1 11/32 inches on the other
• Black color for standard OEM appearance
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Trunk height of 16 inches for precise fitment
• Compatible with Chrysler Concorde, Dodge Intrepid, LHS, and New Yorker models

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on delivering hoses with precise bends and dual inside diameters to accommodate specific radiator and engine configurations. This product line is engineered to meet stringent SAE standards, ensuring durability and proper coolant flow. The 71634 hose exemplifies this approach by combining material quality and fitment accuracy for select Chrysler and Dodge vehicles.

Detailed Product Description

The Dayco 71634 radiator coolant hose is manufactured from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. Its dual inside diameter design allows it to connect different sized fittings securely, with one end measuring 1 9/32 inches and the other 1 11/32 inches. The hose does not include a heat shield or protective sleeve, focusing on a straightforward, reliable coolant path. Its black color matches OEM standards, and the 16-inch trunk height ensures proper routing within the engine bay. This hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC specifications, confirming its suitability for automotive cooling systems.

Common Applications and Issues Addressed

• Replacement of worn or cracked radiator coolant hoses on Chrysler Concorde and Dodge Intrepid
• Resolving coolant leaks caused by hose degradation in LHS and New Yorker models
• Maintaining proper coolant flow to prevent engine overheating
• Addressing fitment issues due to incorrect hose diameter or length
• Ensuring compatibility with factory cooling system specifications

Installation Notes and Tips

Before installation, verify the hose dimensions and fitment against your vehicle’s specifications. Ensure the engine is cool to avoid burns from hot coolant. Remove the old hose carefully, inspecting clamps and fittings for wear. Use appropriate clamps to secure the Dayco 71634 hose, ensuring no kinks or twists that could restrict coolant flow. Double-check connections for leaks after installation and during initial engine operation.

Quality Assurance and Warranty

Dayco manufactures the 71634 radiator hose to meet SAE standards, ensuring consistent quality and performance. The EPDM material provides durability against heat and chemical exposure typical in automotive cooling systems. While specific warranty details are not provided here, Dayco products generally come with manufacturer-backed quality assurance to support reliable operation in compatible Chrysler and Dodge vehicles.