ContiTech 64373 Molded Heater Hose EPDM SAE 20R3EC Class D1/D2

The ContiTech 64373 Molded Heater Hose is a precision-formed coolant hose engineered to transfer glycol-based coolants to and from the heater core, by-pass to the radiator, and through other critical components in a vehicle's cooling system. Pre-shaped to match original equipment configurations, this hose delivers a reliable, leak-free fit without cutting or modification.

Key Features:

• EPDM Construction: Features an EPDM tube and cover with synthetic knit reinforcement for long-lasting flexibility and durability
• Broad Coolant Compatibility: Compatible with ethylene glycol-, propylene glycol-based, and organic acid modified long-life (OAT/HOAT) coolants
• ECR Resistant: Engineered to resist Electrochemical Degradation (ECR), a leading cause of premature hose failure
• Wide Temperature Range: Rated for continuous service from -40°F to 275°F (-40°C to 135°C)
• SAE Certified: Meets or exceeds SAE 20R3EC Class D1 and Class D2 specifications as well as many original equipment manufacturer (OEM) specifications
• OEM-Matched Shape: Exact original configuration ensures proper routing and fit during installation

The ContiTech 64373 is designed for heater hose applications and is not intended for use in fuel or oil transfer applications. Trust ContiTech's engineering heritage to keep your vehicle's cooling system running at peak performance.