ContiTech 63137 Molded Heater Hose - EPDM Construction SAE 20R3EC

The ContiTech 63137 is a premium molded heater hose engineered to transfer glycol-based coolants to and from the heater core, bypass to the radiator, and through other components in your vehicle's cooling system. This original equipment quality hose features a pre-molded configuration designed to ensure proper fit for specific applications.

Key Features:

• EPDM (Ethylene Propylene Diene Monomer) tube and cover construction for superior heat and chemical resistance
• Synthetic knit reinforcement for enhanced strength and durability
• Meets or exceeds SAE 20R3EC Class D1 and D2 specifications
• Compatible with ethylene glycol and propylene glycol-based coolants, including organic acid modified long-life coolants
• Resistant to Electrochemical Degradation (ECD)
• Temperature range: -40°F to 275°F (-40°C to 135°C)
• Approximately 17 inches in length

This molded heater hose is designed to withstand high underhood temperatures and resist deterioration from modern coolant formulations. The EPDM material provides excellent resistance to ozone, heat, and antifreeze solutions, ensuring long-lasting performance. Not for use in fuel or oil transfer applications.