Continental 64540 HVAC Heater Hose - Heater Outlet

Continental Heater Hose for OE-Style Coolant Routing

Continental Molded Part Number 64540 is an HVAC heater hose built to move glycol-based coolant between the heater core, radiator bypass circuit, and related engine cooling components. Its molded shape and 0.620-inch inside diameter at both ends support a direct-fit style replacement for select Toyota Venza and Honda Civic applications.

Key Features

• 0.620-inch inside diameter at Hose 1 and End 2 for matched coolant flow connections
• 26.570-inch hose length for molded routing in the heater circuit
• Built to SAE 20R3EC Class D1 and Class D2 specifications
• Resistant to electrochemical degradation (ECR)
• Continental Molded line construction for vehicle-specific heater hose routing
• Part Number 64540 for accurate catalog lookup and replacement matching

Product Details

This Continental heater hose is engineered for coolant transfer in the HVAC and engine cooling system, where stable routing and consistent hose sizing matter. The molded design helps maintain the intended path between the heater core and other cooling-system components, while the ECR-resistant construction addresses a common failure mode in modern coolant hoses. Continental 64540 is a practical replacement choice for drivers searching for a heater outlet hose for 2009-2016 Toyota Venza or 2006-2011 Honda Civic applications.

The Continental Molded product line focuses on formed hose routing for specific vehicle layouts, helping match OE-style bends and connection points. For buyers comparing heater hose replacement options, Part Number 64540 is a direct catalog reference for the correct molded HVAC heater hose configuration.

This part cross-references Honda 79725SNAA00 for the same application.

Common Problems This Hose Can Address

• Coolant seepage at the heater outlet hose
• Cracking or hardening from heat cycling
• Restricted heater-core coolant flow
• Incorrect hose routing after prior repair work
• Electrochemical hose degradation in the cooling system

Installation Notes and Tips

Verify the hose path, inside diameter, and molded shape against the removed part before installation. Inspect adjoining heater-core and radiator-bypass connections for scale, corrosion, or damaged clamps, and flush the cooling system if contamination is present. Confirm the vehicle application by year, make, model, and heater outlet position before ordering Continental 64540.

Quality Assurance

Continental lists this hose to SAE 20R3EC Class D1 and Class D2 specifications and identifies resistance to electrochemical degradation (ECR), supporting consistent performance in coolant-transfer service.

Compatible With 2009-2016 Toyota Venza, Heater Outlet; 2006-2011 Honda Civic, Heater Outlet.