Continental 64321 HVAC Heater Hose

Continental Molded Heater Hose 64321

Continental 64321 is a molded HVAC heater hose built for coolant transfer in the vehicle’s heating and cooling circuit. With a 0.690 in. inside diameter at both ends and a 7.910 in. molded length, it supports direct routing between heater connections and tee fittings on select Chrysler, Dodge, Saturn, Chevrolet, Pontiac, Nissan, Ford, and Suzuki applications.

Key Features

• 0.690 in. inside diameter at Hose 1 and End 2
• 7.910 in. molded hose length
• Built for glycol-based coolant flow through the heater circuit
• Meets or exceeds SAE 20R4EC Class D1 radiator hose specifications
• Continental Molded line construction for formed routing
• Cross-references Davico Mfg 19736 for the same application

Product Details

Continental’s Molded line focuses on formed coolant hoses that follow factory-style routing in tight engine compartments. Part number 64321 is a molded heater hose used in HVAC hose and pipe applications where a precise bend and consistent diameter matter. It is listed for multiple heater-to-tee and tee-to-heater positions, including Chrysler 300, Dodge Charger, and Dodge Magnum applications, along with additional coverage for Ford Windstar, Nissan Altima, and other select vehicles. This part number, 64321, is built to move coolant through the heater circuit and help maintain proper flow between the radiator, heater core, and related coolant-system components.

What It Helps Address

• Coolant leakage from a cracked or aged heater hose
• Restricted coolant flow in the heater circuit
• Improper routing caused by a collapsed or misshaped hose
• Heat-related hose deterioration in the HVAC coolant path
• Service replacement for molded heater hose applications on Chrysler 300 and Dodge Charger

Installation Notes and Tips

• Verify hose routing, position, and end diameters before installation.
• Match the molded shape to the original hose path to avoid kinks or tension.
• Inspect adjoining tees, clamps, and pipe ends for wear before reassembly.
• Confirm coolant level and bleed the system after service.
• Fits 2018-2021 Chrysler 300, Heater To Tee-1; Fits 2008-2013 Chrysler 300, Heater To Tee-1; Fits 2005-2006 Chrysler 300, Heater To Tee-1; Fits 2010 Chrysler 300, Heater To Tee-2; Fits 2005-2008 Chrysler 300, Heater To Tee-2; Fits 2010 Saturn Vue, Heater To Tee; Fits 2006-2008 Dodge Charger, Tee-1 To Heater; Fits 2006-2008 Dodge Charger, Heater To Tee-2; Fits 2005-2007 Dodge Magnum, Heater To Tee-2; Fits 2005-2007 Dodge Magnum, Tee-1 To Heater; Fits 2006 Chrysler 300, Tee-1 To Heater; Fits 2000-2003 Ford Windstar, Heater To Tee-1, W/ Aux. Heater; Cut to Fit; Molded; Fits 2000-2002 Chevrolet Cavalier, Pipe-1 To Tee; Fits 2002 Pontiac Sunfire, Pipe-1 To Tee; Fits 1998-2001 Nissan Altima, Engine To Pipe-2; Fits 2000-2001 Pontiac Sunfire, Tee To Pipe-1; Fits 1999 Chevrolet Metro, Pipe-2 To Pipe-3; Fits 1999 Pontiac Firefly, Pipe-2 To Pipe-3; Fits 1998-1999 Pontiac Sunfire, Pipe-2 To Pipe-3; Fits 1999 Suzuki Swift, Pipe-2 To Pipe-3.

Quality Assurance

Continental lists this hose as meeting or exceeding SAE 20R4EC Class D1 radiator hose specifications, supporting a specification-based replacement for the original molded heater hose. Use the confirmed fitment data for Chrysler 300, Dodge Charger, Dodge Magnum, and other listed vehicles before ordering.