Continental 63117 HVAC Heater Hose

Continental HVAC Heater Hose 63117

Continental 63117 is a molded HVAC heater hose built for coolant transfer between the heater core, bypass circuits, radiator routing, and other engine cooling components. With a 0.620 in. inside diameter at both ends and a 9.180 in. molded length, it is sized for direct replacement applications where OE-style routing matters.

This Continental Molded hose is engineered to meet SAE 20R3EC Class D1 and Class D2 requirements and is resistant to electrochemical degradation (ECR), helping it stand up to modern coolant systems. It is a practical replacement for vehicles such as the Honda Civic, Toyota Land Cruiser, and Lexus LX570, and it cross-references Dayco 87651 and Gates 18775 for the same application.

Key Features

• Part number: 63117
• Brand line: Continental Molded
• Hose 1 inside diameter: 0.620 in.
• End 2 hose inside diameter: 0.620 in.
• Hose length: 9.180 in.
• Built for heater core, bypass, radiator, and related coolant routing
• Meets SAE 20R3EC Class D1 and Class D2 specifications
• Resistant to electrochemical degradation (ECR)

Product Details

Continental Molded hoses are formed for applications that require a specific bend and stable coolant flow path. This heater hose is used in a wide range of vehicles, including Fits 2002-2005 Honda Civic, Heater To Engine; Fits 2013-2018 Toyota Land Cruiser, Tee-2 To Auxiliary Heater; and Fits 2013-2018 Lexus LX570, Tee-2 To Auxiliary Heater. The same Continental 63117 part number also appears in additional molded and cut-to-fit applications across Chrysler, Dodge, Buick, GMC, Isuzu, Kia, Oldsmobile, Ford, and Toyota platforms.

What This Hose Helps Address

• Coolant leaks at a worn heater hose
• Restricted heater-core coolant flow
• Cracked or softened rubber hose sections
• Incorrect routing on molded coolant hose replacements
• Service replacement needs for heater, bypass, or radiator transfer lines

Installation Notes and Tips

• Verify hose diameter and molded length before installation.
• Match the vehicle position and routing shown in the fitment data, such as Tee-2 To Auxiliary Heater, Reservoir To Pipe, or Pipe To Engine.
• Inspect adjoining pipes, clamps, and heater-core connections for corrosion or damage before reuse.
• Confirm coolant type and refill procedure according to the vehicle service information after replacement.
• For cut-to-fit applications, trim only as required to match the original routing.

Quality Assurance

Continental manufactures this hose to published SAE 20R3EC Class D1 and D2 specifications and with ECR resistance for coolant-system durability. The molded construction supports OE-style fitment across confirmed applications, including Lexus LX570, Toyota Land Cruiser, and Honda Civic models.