Continental 64419 HVAC Heater Hose - Heater To Thermostat

Continental Heater Hose for Jeep TJ and Wrangler

Continental Molded heater hose Part Number 64419 is built for the heater-to-thermostat coolant path on select Jeep applications. It transfers glycol-based coolant through the heater circuit with the molded routing needed for a clean OE-style fit.

Compatible with 2000-2006 Jeep TJ and 2000-2006 Jeep Wrangler, this molded heater hose is made to SAE 20R3EC Class D1 and Class D2 specifications and is resistant to electrochemical degradation (ECR). The 0.690-inch inside diameter at both ends and 35.700-inch hose length support the specified coolant routing for these Jeep models.

Key Features

• Continental Molded line heater hose for HVAC coolant routing
• Part Number 64419 for Jeep TJ and Jeep Wrangler applications
• 0.690-inch inside diameter at both ends
• 35.700-inch molded hose length
• Built for glycol-based coolant transfer to and from the heater core
• Meets SAE 20R3EC Class D1 and Class D2 specifications
• Resistant to electrochemical degradation (ECR)

Detailed Description

Continental 64419 is a molded HVAC heater hose for the heater-to-thermostat coolant circuit. It routes glycol-based coolant through the heater system and bypass flow where required, using a molded shape that matches the listed Jeep TJ and Jeep Wrangler applications. This part cross-references ACI 88429 and BBB Industries 19039 for the same application.

The Continental Molded product line focuses on application-specific hose routing and material performance for cooling-system service. For buyers searching for a Jeep TJ heater hose, Jeep Wrangler heater hose, or Continental 64419 heater hose replacement, this part provides the specified diameter, length, and molded configuration for the listed vehicles.

What It Helps Address

• Coolant leaks in the heater hose circuit
• Cracked or deteriorated molded heater hose sections
• Restricted coolant flow to the heater core
• Incorrect hose routing on Jeep TJ and Jeep Wrangler cooling systems
• Electrochemical wear in the coolant hose material

Installation Notes and Tips

Verify the heater-to-thermostat routing before installation and compare the hose length and end diameters to the removed part. Inspect adjoining clamps, thermostat housing connections, and heater core fittings for wear or corrosion before reassembly. Confirm the hose follows the molded path without twist or kinking.

Quality Assurance

Continental specifies this hose to SAE 20R3EC Class D1 and Class D2 requirements and identifies resistance to electrochemical degradation (ECR) for added material durability in coolant service.