Gates 12156 Premium Molded HVAC Heater Hose

The Gates 12156 is a premium molded HVAC heater hose designed to deliver reliable coolant flow in demanding automotive applications. This precision-engineered heater hose features factory-molded construction that matches OEM specifications for proper fit and performance.

Key Features:

• Constructed from EPDM (ethylene propylene diene monomer) rubber with synthetic fiber knit reinforcement for superior durability
• Engineered to resist electrochemical degradation, the leading cause of coolant hose failure
• Wide temperature range: -40°F to 275°F (-40°C to 135°C) for reliable performance in extreme conditions
• 0.62-inch inside diameter on both ends for consistent coolant flow
• Meets SAE 20R3 Type EC Class D-1 and D-2 specifications for quality assurance
• Unaffected by most coolants and non-oil based coolant additives
• Resists high cooling system pressures to prevent leaks and failures

This molded heater hose is designed as a direct replacement part that maintains optimal engine temperatures for peak performance and longevity. Gates recommends replacing hose clamps each time a new coolant hose is installed. Replaces OEM part number 79721T2GA00.

Note: Do not use for fuel or oil transfer applications.