Continental 64331 HVAC Heater Hose - Heater To Pipe-1

Continental HVAC Heater Hose 64331

Continental 64331 is a molded HVAC heater hose built for glycol-based coolant flow through the vehicle cooling system. The EPDM tube and cover, along with synthetic reinforcement, meet or exceed SAE 20R4EC Class D1 requirements for a precise OE-style replacement.

Compatible with Subaru Baja, Outback, Forester, and Legacy heater-to-pipe applications, this molded hose follows the exact OEM configuration for proper routing and fit. The Continental Molded line focuses on application-specific hose shapes and dimensions for direct replacement service.

Key Features

• EPDM tube and cover for coolant-system service
• Synthetic reinforcement meets or exceeds SAE 20R4EC Class D1 specifications
• Molded shape matches the original heater hose routing
• 0.620 in. inside diameter at both ends
• 16.500 in. hose length
• Direct-fit replacement for heater-to-pipe-1 locations

Detailed Description

This Continental heater hose, part number 64331, is engineered for Subaru cooling-system service where a molded hose is required between the heater circuit and pipe connection. The 0.620-inch inside diameter and 16.500-inch length support accurate fitment, while the molded construction helps maintain the factory hose path. This part cross-references Carlson 19131 and 19132 for the same application.

Fits 2003-2006 Subaru Baja, Heater To Pipe-1. Fits 2000-2006 Subaru Outback, Heater To Pipe-1. Fits 2000-2005 Subaru Forester, Heater To Pipe-1. Fits 1995-2002 Subaru Legacy, Heater To Pipe-1. Search terms such as Subaru Legacy heater hose 64331, Subaru Forester molded heater hose, and Continental 64331 heater to pipe hose align with this application.

Common Problems This Part Addresses

• Cracked or hardened heater hose material
• Coolant seepage at the heater hose connection
• Incorrect hose routing from a non-molded replacement
• Loss of heater circuit flow from a deteriorated hose
• Fitment issues on Subaru heater-to-pipe service locations

Installation Notes and Tips

Verify the hose path, inside diameter, and connection points before installation. Match the molded shape to the original routing on the Subaru Baja, Outback, Forester, or Legacy application, and inspect adjoining pipes and clamps for wear or corrosion before reassembly.

Quality Assurance

Continental designs this hose to meet or exceed SAE 20R4EC Class D1 specifications, with EPDM construction and synthetic reinforcement selected for coolant-system durability and OE-style fit.