Global Parts 8231625 HVAC Heater Core - Rear

Rear Heater Core for Ford Expedition and Lincoln Navigator

Global Parts 8231625 is a specific-fit HVAC heater core for rear climate control applications. It transfers heat from the engine cooling system into the cabin, helping restore proper rear passenger heat in the Ford Expedition and Lincoln Navigator.

• Specific-fit rear HVAC heater core
• Aluminum construction for efficient heat transfer
• Rear position application
• Adjustable pipe positioning: No
• Direct replacement for select Ford and Lincoln models

Product Details

This Global Parts heater core is built for 1997-2002 Ford Expedition, rear and 1999-2002 Lincoln Navigator, rear applications. The aluminum core supports coolant-to-air heat exchange inside the HVAC system, helping the rear cabin receive warm air when the heater is operating. Part number 8231625 is a specific-fit replacement for vehicles that use the listed rear heater core configuration.

This part cross-references Dorman - HELP 90003 and UAC HT398351C for the same application.

Common Problems This Part Can Address

• Weak or no rear heat output
• Coolant odor inside the cabin from a leaking heater core
• Fogging or film on interior glass caused by HVAC coolant leakage
• Uneven rear passenger comfort in cold weather
• Loss of heater performance in the rear HVAC circuit

Installation Notes

Verify rear-position fitment before installation and confirm the vehicle uses the listed specific-fit configuration. Inspect coolant hoses, clamps, and the HVAC housing for wear or contamination during replacement. Proper coolant refill and system bleeding are important after heater core service to help restore normal heater operation.

Quality Assurance

Global Parts 8231625 is an aluminum HVAC heater core built for specific-fit replacement use in the listed Ford Expedition and Lincoln Navigator applications. Confirm part number 8231625 against the vehicle’s rear HVAC setup before ordering.