Gates 12243 Premium Molded Heater Hose

The Gates 12243 is a factory-molded, OEM-style coolant hose designed to fit today's smaller, tighter-fitting engine compartments. This premium heater hose is engineered with EPDM construction to provide reliable coolant circulation while resisting the harsh conditions of modern cooling systems.

Key Features:

• Factory-molded design for precise OEM fit and easy installation
• EPDM rubber construction with synthetic fiber reinforcement for durability
• Engineered to resist electrochemical degradation—the leading cause of hose failure
• Heat-, ozone-, and chemical coolant-resistant EPDM cover
• Temperature range: -40°F to +257°F (-40°C to +125°C)
• Approved for marine applications
• Meets SAE 20R3 and SAE 20R4 specifications

This versatile hose can be used for coolant, water, and air applications, making it suitable for a wide range of automotive, light truck, and marine cooling system repairs. Gates recommends replacing hose clamps each time a new coolant hose is installed for optimal performance and leak prevention.

Important: Not recommended for fuel or oil transfer applications.