Four Seasons HVAC Heater Core P/N:90045

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$53.99
MPN: 90045
UPC: 846385000316
Item Package Quantity: 1
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Four Seasons HVAC Heater Core P/N:90045
Four Seasons HVAC Heater Core P/N:90045
$53.99

Make your Ford Explorer heater core replacement a one-and-done job with the Four Seasons HVAC Heater Core (P/N 90045). This aluminum front heater core drops in as a direct-fit replacement for the 2002-2010 Ford Explorer, 2007-2010 Ford Explorer Sport Trac, 2003-2005 Lincoln Aviator, and 2002-2010 Mercury Mountaineer — see the Buyer's Guide tab for engine-specific coverage.

A heater core works like a small radiator: hot engine coolant circulates through its tubes while the blower pushes cabin air across the fins to warm the interior and help clear the glass. If a clogged, corroded, or leaking core is behind weak heat, a sweet coolant smell, or fogging inside, this unit replaces it.

  • Aluminum construction: built for heavy-duty durability.
  • O.E. fit, form & function: quality-engineered to match the original.
  • Independently tested: checked for proven quality and performance.
  • Four Seasons backing: over 50 years of mobile A/C and heating experience.

A trusted FOUR SEASONS heater core option for owners tackling this common repair.

Frequently Asked Questions

What vehicles does this heater core fit?

It's a direct-fit replacement for the 2002-2010 Ford Explorer, 2007-2010 Ford Explorer Sport Trac, 2003-2005 Lincoln Aviator, and 2002-2010 Mercury Mountaineer. Check the Buyer's Guide tab for engine-specific details.

Will this fit an 02 Ford Explorer heater core replacement?

Yes. The 2002-2010 Ford Explorer is a listed application, so this covers a 2002 Explorer. Confirm your specific configuration in the Buyer's Guide tab.

Does it fit a 2003 Ford Explorer heater core job?

Yes. The 2003 Ford Explorer falls within the listed 2002-2010 Explorer range, making this a direct-fit option for that year.

What is the core made of?

It's an aluminum heater core built with heavy-duty construction for durability, engineered for O.E. fit, form, and function.

How do I know my heater core has failed?

Signs include weak or no cabin heat, a sweet coolant smell, fogging on the windows, or coolant on the passenger floor. If a failed core is the cause, this replaces it.