Dayco 72688 Radiator Coolant Hose - Lower

Dayco 72688 Curved Radiator Hose for Honda Civic

Dayco 72688 is a curved radiator coolant hose built for lower cooling-system routing on select Honda Civic models. Made from EPDM and finished in black, it provides a direct-fit replacement for the lower radiator hose on 2006-2011 Honda Civic applications.

Key Features

• EPDM construction for coolant-system service
• Curved radiator hose design for lower hose routing
• Single I.D. hose with 1 3/16 in. inside diameter at both ends
• Black finish for a clean OE-style appearance
• Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Fits 2006-2011 Honda Civic, lower
• Part number 72688 for easy identification

Product Details

This Dayco Curved Radiator Hose line is engineered for cooling-system service where a formed hose is needed to follow the factory routing. Dayco 72688 matches the lower hose application on the Honda Civic and uses EPDM rubber for coolant resistance and consistent flexibility in normal engine-bay temperatures. The hose measures 1 3/16 inches inside diameter at both ends and 1 17/32 inches outside diameter at both ends, making it a straightforward replacement for the specified lower radiator connection.

Fits 2006-2011 Honda Civic, lower. Dayco 72688 is a practical choice when replacing a worn, cracked, or leaking lower radiator hose on these vehicles.

Common Problems This Hose Can Address

• Coolant leaks from a cracked or aged lower radiator hose
• Softening, swelling, or collapse of the original hose
• Loss of coolant from hose-end deterioration
• Improper hose fit after previous cooling-system repairs
• Restricted coolant flow caused by a damaged hose interior

Installation Notes and Tips

Verify the hose routing and end diameters against the original part before installation. Inspect hose clamps, radiator necks, and adjoining coolant pipes for wear or corrosion, and replace any damaged components as needed. After installation, refill the cooling system with the correct coolant and check for leaks once the engine reaches operating temperature.

Quality Assurance

Dayco 72688 is manufactured to SAE J20R4 Class D-1 and SAE J1684 Type EC standards for radiator hose applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.