Gates 23666 Premium Modular Coolant Hose - Lower Radiator Hose with Branch

The Gates 23666 is a premium modular coolant hose designed for modern engine cooling systems. This molded hose measures 18-1/2 inches in centerline length and features EPDM rubber construction with end diameters of 1-5/16 inch (33mm) on ends 1 and 2, and 3/4 inch (19mm) on end 3. The modular design includes an integrated branch connector, making it ideal for complex cooling system applications.

Key Features:

• Manufactured to fit specific applications with OEM-equivalent integrated components such as hose branches, quick-connectors, sensors, and restrictors
• EPDM tube with synthetic fiber knit reinforcement and heat-, ozone-, and chemical coolant-resistant EPDM cover
• Specifically-engineered materials resist collapse under vacuum
• Engineered to resist electrochemical degradation - the leading cause of hose failure
• Temperature range: -40°F to +257°F (-40°C to +125°C)
• Meets SAE 20R3 EC Class D1 under 25mm (1 inch) ID, SAE 20R4 EC Class D1 for 25mm (1 inch) ID and over
• Approved for marine applications

OEM Cross-References: Ford 9T1Z 8260 A, 9T1Z 8286 A, 9T1Z 8286 B, 9T1Z 8286 C, Motorcraft KM5199, ACDelco 22678M, Dayco 72553, Goodyear 66467, NAPA 16357, Rein CHR0662

Gates modular coolant hoses represent the latest advancement in cooling system technology, providing OEM-quality performance with the durability and reliability that professional technicians demand. Gates recommends replacing clamps each time a new coolant hose is installed. Not suitable for fuel or oil transfer applications.