Dayco 72576 Radiator Coolant Hose - Lower - Engine To Pipe or Lower - Pipe To Radiator

Dayco Curved Radiator Hose for Honda Civic

Dayco 72576 is a curved radiator coolant hose built for specific Honda Civic cooling system applications. Made from EPDM and finished in black, this dual I.D. hose is shaped for lower coolant routing between the engine pipe and radiator on select Civic models.

Compatible with 2006-2011 Honda Civic lower cooling hose applications, this part supports proper coolant flow in the radiator circuit. The Dayco Curved Radiator Hose line focuses on application-specific hose geometry and OE-style fitment for replacement work on the Honda Civic cooling system.

Key Features

• EPDM construction for coolant hose service
• Black exterior for a factory-style appearance
• Dual I.D. hose design
• End 1 inside diameter: 1 1/16 in.
• End 2 inside diameter: 1 3/16 in.
• Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Curved hose profile for lower radiator routing
• Dayco part number 72576

Detailed Description

Dayco 72576 is a curved radiator coolant hose engineered for lower cooling system connections on select Honda Civic models. The EPDM rubber construction is suited for coolant service, while the curved shape and dual inside diameters help match the routing and connection points used in the vehicle’s lower hose path. This hose is listed for 2006 Honda Civic lower engine to pipe applications and 2008-2011 Honda Civic lower pipe to radiator applications.

This part cross-references Honda 19504-RMX-000 for the same application. It also aligns with common aftermarket references including ACDelco 20495S and Gates 23332. If you are replacing a worn Honda Civic radiator hose, Dayco 72576 provides a direct-fit option for the specified lower coolant circuit.

Common Problems This Hose Can Address

• Coolant leaks from a cracked or aged lower radiator hose
• Softening, swelling, or collapse of the hose under heat and pressure
• Improper hose routing after a previous repair
• Loss of coolant circulation through the lower cooling circuit
• Visible wear at the hose ends or along curved sections

Installation Notes and Tips

Verify the hose routing and connection points before installation. For 2006 Honda Civic, use the lower engine to pipe application; for 2008-2011 Honda Civic, use the lower pipe to radiator application. Inspect the mating pipes, clamps, and surrounding cooling system components for corrosion, residue, or damage before installing the new hose. Confirm the end diameters match the vehicle connection points and refill the cooling system with the correct coolant after service.

Quality Assurance

Dayco manufactures this hose to meet SAE J20R4 Class D-1 and SAE J1684 Type EC requirements, supporting consistent material and performance standards for cooling system replacement.