Dayco 70477 Radiator Coolant Hose - Lower or Upper

Overview of Dayco Curved Radiator Hose 70477

The Dayco Curved Radiator Hose 70477 is designed to provide reliable coolant flow for a range of vehicles including BMW 318i, Lexus LX470, and Toyota Land Cruiser. Constructed from durable EPDM material, this black single inside diameter hose ensures consistent performance under typical engine operating conditions.

• Material: EPDM for heat and chemical resistance
• Color: Black
• End 1 and End 2 Inside Diameter: 1 1/2 inches
• Hose Type: Single inside diameter hose
• Meets SAE specifications SAE J20R4 Class D-1 and SAE J1684 Type EC
• Trunk Height: 10 inches
• Compatible with multiple makes and models including BMW 318is, Cadillac DeVille, Chrysler Town & Country, Dodge Charger, Lexus LX470, Pontiac LeMans, and Toyota Land Cruiser

About the Curved Radiator Hose Product Line

The Dayco Curved Radiator Hose line focuses on delivering hoses with precise bends to fit specific engine layouts, reducing stress and improving coolant flow efficiency. This product line is engineered to meet stringent SAE standards, ensuring compatibility and durability for various automotive cooling systems. The 70477 part is a single inside diameter hose designed to fit a range of vehicles requiring a 1 1/2 inch diameter connection at both ends.

Detailed Product Description

This radiator coolant hose is made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals, making it suitable for long-term use in automotive cooling systems. The hose’s black color and smooth finish help resist external wear and environmental factors. Both ends have an inside diameter of 1 1/2 inches, allowing for a secure fit on compatible radiator and engine connections. The hose does not include a heat shield or protective sleeve, which is typical for this type of curved radiator hose. It complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring it meets industry requirements for coolant hoses.

Common Applications and Issues Addressed

• Replacement of worn or cracked radiator coolant hoses on BMW 318ti and Chrysler Town & Country
• Resolving coolant leaks caused by hose degradation in Lexus LX470 and Pontiac LeMans
• Maintaining proper coolant flow in Dodge Charger and Cadillac Eldorado cooling systems
• Preventing overheating issues related to faulty radiator hoses in Toyota Land Cruiser and Chrysler Fleetwood
• Ensuring secure hose connections in various compatible models to avoid coolant loss

Installation Notes and Tips

Before installation, ensure the engine is cool to prevent injury from hot coolant. Inspect hose connections and clamps for corrosion or damage and replace if necessary. The 1 1/2 inch inside diameter ends should fit snugly on radiator and engine fittings. Use appropriate clamps to secure the hose and prevent leaks. Verify the hose routing matches the original to avoid kinks or interference with other engine components.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 70477 to meet SAE specifications, ensuring consistent quality and performance. The EPDM material and construction provide resistance to heat and coolant chemicals, contributing to the hose’s durability. Warranty details should be confirmed with the original equipment manufacturer or supplier, as they may vary by application and region.