Gates 23697 Radiator Coolant Hose - Lower

Honda Civic Lower Coolant Hose

Gates 23697 is a molded radiator coolant hose for the lower cooling circuit on select Honda Civic models. Built from EPDM and formed to OEM-style dimensions, it provides a direct replacement for the original lower hose on 2006-2011 Honda Civic applications.

The Gates Molded Coolant Hose line covers upper, lower, bypass, heater, and other coolant routing needs with application-specific shapes that help simplify radiator hose replacement. Part number 23697 is part of that molded hose family for service work that calls for a formed lower hose rather than a universal cut-to-fit hose.

Key Features

• Gates Molded Coolant Hose, part number 23697
• Fits 2006-2011 Honda Civic, lower
• EPDM construction for coolant-system service
• Molded shape for OEM-style routing and fit
• 1.19 in. inside diameter at both ends
• 18.4 in. centerline length
• No spring and no quick-connect fittings

Detailed Description

This radiator coolant hose is engineered for the lower hose position on the Honda Civic and follows the molded profile needed to route coolant cleanly between connection points. The EPDM material is commonly used in cooling-system hoses for its resistance to heat and coolant exposure, while the formed design helps match the original hose path. If you are replacing a worn or leaking lower hose on a 2006-2011 Honda Civic, Gates 23697 provides a direct service part for that application.

This part cross-references Dayco 72688 and Bosch 66031 for the same application.

Common Problems It Can Address

• Coolant leaks from a cracked or aged lower radiator hose
• Softening, swelling, or collapse of the original hose
• Improper hose routing after a previous repair
• Loss of coolant from a damaged molded hose section
• Service replacement for a worn Honda Civic lower coolant hose

Installation Notes and Tips

Verify the lower hose routing and connection diameters before installation. Inspect the mating necks, clamps, and nearby cooling-system components for wear or corrosion, and replace any damaged parts before refilling the system. After installation, refill and bleed the cooling system according to the vehicle service procedure to help prevent air pockets.

Quality Assurance

Gates manufactures molded coolant hoses to OEM-quality specifications for application-specific cooling-system replacement. Part number 23697 is built for the 2006-2011 Honda Civic lower hose position and follows the dimensions needed for proper fitment.