Continental 63517 HVAC Heater Hose - Intake Manifold To Valve, Pipe-5 To Thermostat or Valve To Engine

Continental Molded HVAC Heater Hose 63517

Continental 63517 is a molded HVAC heater hose built for coolant transfer between the heater core, radiator bypass circuit, and related engine cooling components. It is formed to match the routing used on select Honda Accord and Volkswagen Passat applications, with a 0.620 in. inside diameter and 21.300 in. length.

Key Features

• 0.620 in. inside diameter on both ends for matched coolant flow connections
• 21.300 in. molded hose length for application-specific routing
• Transfers glycol-based coolant through heater and bypass circuits
• Built to SAE 20R3EC Class D1 and Class D2 specifications
• Resistant to electrochemical degradation (ECR) for added hose durability
• Continental Molded line for formed hose applications that require OE-style routing

Product Details

This Continental HVAC heater hose is engineered for direct coolant routing in heating and cooling systems where a molded shape is required. The molded design helps maintain the correct path between the intake manifold, valve, thermostat, or engine-side connection points used on the listed vehicles. Continental 63517 is a practical replacement for service work on 1998-2002 Honda Accord and 1998-2001 Volkswagen Passat cooling circuits.

This part cross-references Dayco 87771 for the same application. It also cross-references BBB Industries 19044 for the same application.

Vehicle Fitment

• Fits 1998-2002 Honda Accord, Intake Manifold To Valve, Molded
• Fits 1998-2001 Volkswagen Passat, Pipe-5 To Thermostat, w/o Aux. Water Pump; Molded
• Fits 1998 Honda Accord, Valve To Engine, Molded

Common Problems This Hose Can Address

• Cracked or softened heater hose material from age and heat exposure
• Coolant seepage at a molded hose section or connection point
• Restricted coolant transfer through a deteriorated heater circuit hose
• Incorrect hose routing after replacement with a non-molded hose
• Service replacement for a hose that no longer holds its original shape

Installation Notes

Verify hose routing against the original part before installation, especially on molded applications where bend shape matters. Confirm the 0.620 in. hose connections match the vehicle’s existing fittings and inspect adjoining clamps, pipes, and thermostat or heater-core connections for wear before reassembly.

Quality Assurance

Continental manufactures this hose to SAE 20R3EC Class D1 and Class D2 requirements and specifies resistance to electrochemical degradation, helping support long-term performance in coolant service.