Continental 66838 Radiator Coolant Hose - Lower

Continental Lower Radiator Coolant Hose

Continental 66838 is a molded radiator coolant hose built for the lower cooling circuit on select Dodge Durango and Jeep Grand Cherokee models. It uses an EPDM tube and cover with synthetic reinforcement to handle glycol-based coolant flow while matching the original hose shape for accurate routing and fit.

Key Features

• Part number 66838 for direct replacement identification
• 1.440 in. inside diameter at both ends
• 27.800 in. hose length
• EPDM tube and cover with synthetic reinforcement
• Built to meet or exceed SAE 20R4EC Class D1 specifications
• Molded OE-style configuration for the lower radiator hose path

Product Details

Continental’s Molded line focuses on replacement hoses formed to the original vehicle layout, which helps maintain proper coolant routing and hose alignment. This lower radiator coolant hose is engineered for 2011-2015 Dodge Durango and 2011-2015 Jeep Grand Cherokee applications, with the same molded profile used in the factory cooling system. If you are replacing a worn lower radiator hose on a Dodge Durango or Jeep Grand Cherokee, Continental 66838 provides the correct dimensions and configuration for those listed applications.

This part cross-references Gates 23690 for the same application.

Common Problems This Hose Can Address

• Coolant leaks from a cracked or aged lower radiator hose
• Softening, swelling, or collapse of the hose under heat and pressure
• Improper routing caused by a non-molded replacement hose
• Loss of coolant circulation through the lower cooling circuit
• Fitment issues during replacement on the listed Dodge Durango and Jeep Grand Cherokee models

Installation Notes and Tips

Verify hose routing against the original part before installation and inspect the mating necks, clamps, and nearby cooling components for wear or corrosion. Drain coolant as needed, transfer the hose into the factory path, and confirm that the molded bends sit naturally without twisting. After installation, refill and bleed the cooling system according to the vehicle service procedure and check for leaks at operating temperature.

Quality Assurance

Continental 66838 is manufactured to meet or exceed SAE 20R4EC Class D1 requirements and follows an exact OEM configuration for fit and function in the specified applications.