Dayco 73155 Radiator Coolant Hose - Lower

Overview of Dayco Curved Radiator Hose 73155

The Dayco Curved Radiator Hose 73155 is designed specifically for cooling system applications in Lexus Land Cruiser and Toyota LX570 models. Constructed from durable EPDM material, this dual inside diameter hose ensures reliable coolant flow and heat resistance for optimal engine performance.

• Material: EPDM for heat and chemical resistance
• Color: Black
• End 1 Inside Diameter: 1 7/16 inches
• End 2 Inside Diameter: 1 5/8 inches
• End 1 Outside Diameter: 1 27/32 inches
• End 2 Outside Diameter: 1 31/32 inches
• Hose Type: Dual inside diameter hose
• SAE Specifications: SAE J20R4 Class D-1, SAE J1684 Type EC
• Trunk Height: 19 inches
• Does not include heat shield or protective sleeve

Dayco Curved Radiator Hose Product Line Details

The Curved Radiator Hose line by Dayco focuses on providing hoses with precise bends and dual inside diameters to accommodate specific radiator and engine configurations. This design helps maintain proper coolant flow and fitment in complex engine bays, such as those found in Lexus Land Cruiser and Toyota LX570 vehicles. The 73155 part number is part of this line, engineered to meet SAE standards for durability and performance.

Detailed Product Description

The Dayco 73155 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 for a secure fit on varying radiator and engine connections, with end diameters measuring 1 7/16 inches and 1 5/8 inches respectively. The hose’s black color and 19-inch trunk height make it suitable for the specific routing requirements in Lexus Land Cruiser and Toyota LX570 models. This hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC specifications, ensuring it meets industry standards for coolant hoses.

Common Applications and Issues Addressed

• Replacement of worn or cracked radiator coolant hoses in Lexus Land Cruiser and Toyota LX570
• Resolving coolant leaks caused by hose degradation
• Maintaining proper coolant flow to prevent engine overheating
• Ensuring secure hose connections with dual inside diameter design
• Addressing fitment issues in curved radiator hose applications

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 73155, ensure the hose is routed correctly to avoid kinks or sharp bends that could restrict coolant flow. Verify that the hose ends match the radiator and engine fittings by checking the inside diameters of 1 7/16 inches and 1 5/8 inches. Use appropriate clamps to secure the hose firmly in place. Since this hose does not include a heat shield or protective sleeve, inspect surrounding components for potential heat exposure and consider additional protection if necessary.

Quality Assurance and Warranty

Dayco manufactures the 73155 radiator hose to meet SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring compliance with industry requirements for coolant hoses. The EPDM material provides resistance to heat and coolant chemicals, contributing to long service life. Warranty details are provided by Dayco and should be confirmed at the time of purchase.