ContiTech 64609 Molded By-Pass and Heater Hose SAE 20R3

The ContiTech 64609 is a molded by-pass and heater hose engineered to transfer glycol-based coolants to and from the heater core, through by-pass circuits to the radiator, and through other components in the vehicle's coolant system. Pre-shaped in an original configuration, this hose is designed for a precise, drop-in fit.

Key Features:

• EPDM Construction: Features an EPDM tube and cover with synthetic knit reinforcement for long-lasting durability and flexibility
• SAE Compliant: Meets or exceeds SAE 20R3EC Class D1 and Class D2 specifications, as well as many OE specifications
• Coolant Compatible: Works with most coolants, including ethylene glycol- and propylene glycol-based formulas, as well as organic acid modified and long-life coolants
• High Heat Resistance: Engineered to withstand demanding underhood temperatures found in modern vehicles
• Black Finish: Classic black color for a clean, OEM-style appearance
• Sold Individually: Does not include hose clamps or adapters

Note: Not intended for use in fuel or oil transfer applications. The ContiTech 64609 is a direct-replacement molded heater hose built to restore proper coolant flow and heating system performance.