Dayco 70445 Radiator Coolant Hose - Lower or Upper

Overview of Dayco Curved Radiator Hose 70445

The Dayco Curved Radiator Hose 70445 is designed to provide reliable coolant flow for select Dodge, Ford, and Mercury vehicles. Engineered with durable EPDM material, this radiator coolant hose ensures consistent performance in demanding engine environments.

• Constructed from high-quality EPDM rubber for heat and chemical resistance
• Black color with a curved design for precise fitment
• Inside diameter of 1 3/4 inches on both ends for uniform coolant flow
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Trunk height of 14 1/2 inches for proper routing in engine bays
• Single inside diameter hose type for straightforward installation

Detailed Product Description

The Dayco Curved Radiator Hose line focuses on delivering hoses that match exact OEM specifications for coolant systems. The 70445 part number is a curved radiator coolant hose made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. This hose features a consistent 1 3/4 inch inside diameter on both ends, ensuring a secure and leak-free connection. It does not include a heat shield or protective sleeve, which is typical for this hose type and application. The trunk height of 14 1/2 inches allows it to fit properly within the engine compartments of compatible vehicles without kinking or stress.

Compatible Vehicles and Applications

This radiator hose is compatible with a range of Dodge, Ford, and Mercury models, including but not limited to Dodge B100, B200, B300, D100, D150, D200, D250, D300, D350, and W100 through W350 series trucks. It also fits Ford Econoline vans such as the E-150, E-250, and E-350, including Club Wagon variants. Mercury models like Cougar, LTD, Montego, Mustang, Ramcharger, and Villager are also supported. The Dayco 70445 hose is suitable for applications requiring a curved radiator coolant hose with the specified dimensions and SAE compliance.

Common Issues Addressed by This Radiator Hose

• Replacement of cracked or leaking radiator hoses in Dodge B-series trucks and Ford Econoline vans
• Resolving coolant leaks caused by hose deterioration or swelling
• Preventing overheating due to compromised coolant flow in Mercury Mustang and Cougar models
• Maintaining proper coolant circulation in older Dodge and Ford vehicles with original equipment hose wear
• Ensuring a secure fit in engine bays requiring a curved hose with 1 3/4 inch diameter ends

Installation Notes and Tips

When installing the Dayco Curved Radiator Hose 70445, ensure the engine is cool to avoid burns from hot coolant. Verify that the hose routing matches the original path to prevent kinks or interference with other engine components. Use appropriate clamps rated for coolant hoses and tighten securely without over-torquing to avoid hose damage. Inspect adjoining fittings and replace any worn clamps or connectors to maintain a leak-free system.

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 70445 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 durability against heat and chemical exposure typical in automotive cooling systems. While specific warranty details are not provided, Dayco products generally adhere to strict quality control processes to support reliable vehicle operation.