ContiTech 63973 Molded Heater Hose

The ContiTech 63973 Molded Heater Hose is an engineered replacement component designed to transfer glycol-based coolants to and from the heater core and other components in your vehicle's cooling system. This precision-molded hose is manufactured to match OEM specifications for exact fit and reliable performance.

Key Features:

• EPDM rubber construction with superior resistance to heat, ozone, and chemical coolants
• Meets or exceeds SAE 20R3EC Class D1 and Class D2 specifications
• Resistant to Electrochemical Degradation (ECD) for extended service life
• Reinforced with 2-spiral synthetic for greater strength and durability
• Highly resistant to antifreeze coolants and high underhood temperatures
• Pre-formed molded design ensures proper fit and routing

Continental ContiTech heater hoses are engineered to withstand the extreme conditions under the hood, providing reliable coolant transfer and long-lasting performance. The EPDM tube and cover construction delivers excellent flexibility while maintaining resistance to the chemicals and heat encountered in modern cooling systems.