Continental 63972 HVAC Heater Hose - Heater To Reservoir

Continental HVAC Heater Hose for Heater to Reservoir Service

Continental Molded heater hose Part Number 63972 is built for coolant transfer between the heater core, bypass circuits, the radiator, and other vehicle components. It is a molded HVAC heater hose with a 0.750 in. inside diameter and an 18.400 in. length, made to meet SAE 20R3EC Class D1 and Class D2 specifications.

Compatible With Chrysler 300, Dodge Charger, and Dodge Magnum heater to reservoir routing, this hose is a direct-fit service part for select 2005-2010 applications. Continental 63972 is also resistant to electrochemical degradation, which is important in coolant hose service where heat, coolant chemistry, and electrical exposure can affect hose life.

Key Features

• Molded HVAC heater hose for coolant transfer in heater and bypass circuits
• 0.750 in. hose inside diameter at both ends
• 18.400 in. hose length for the specified routing
• Built to SAE 20R3EC Class D1 and Class D2 specifications
• Resistant to electrochemical degradation (ECR)
• Continental 63972 replacement hose for select Chrysler and Dodge vehicles

Product Details

Continental Molded 63972 is engineered for vehicles that route glycol-based coolant through the heater system and related passages. The molded shape supports the heater to reservoir path used on select Chrysler 300, Dodge Charger, and Dodge Magnum models, helping maintain the original hose routing and connection points. If you are searching for a heater hose for 2005-2010 Chrysler 300 heater to reservoir service or a 2006-2008 Dodge Charger heater hose replacement, this part number is a direct reference to check.

This part cross-references 04596570AC and XL-63972 for the same application.

What This Hose Helps Address

• Coolant leaks from a cracked or aged heater hose
• Restricted coolant flow through the heater circuit
• Softening, swelling, or deterioration from heat and coolant exposure
• Routing issues caused by a damaged molded hose shape
• Electrochemical degradation in the cooling system

Installation Notes and Tips

Verify the hose routing, inside diameter, and molded shape against the original part before installation. Drain coolant as needed, inspect the mating tubes and reservoir connections for corrosion or damage, and replace any worn clamps or seals that are part of the vehicle’s existing setup. After installation, refill and bleed the cooling system according to the vehicle service procedure and check for leaks at operating temperature.

Quality Assurance

Continental manufactures this hose to meet SAE 20R3EC Class D1 and Class D2 requirements, with ECR resistance for added durability in coolant service. Continental 63972 is a molded replacement hose designed for the specified Chrysler and Dodge heater-to-reservoir applications.

Compatible Vehicles

• Fits 2005-2010 Chrysler 300, Heater To Reservoir, Molded
• Fits 2006-2008 Dodge Charger, Heater To Reservoir, Molded
• Fits 2005-2008 Dodge Magnum, Heater To Reservoir, Molded