Four Seasons HVAC Heater Core P/N:90483

Keep the cab warm and the windshield clear with the Four Seasons heater core (P/N 90483), a direct-fit front heater core replacement for a wide range of GM trucks and SUVs — including the 1988-2002 Chevrolet C1500, 1988-1999 Chevrolet K1500, and 1995-2000 Chevrolet Tahoe. Mounted in the front HVAC housing, the core routes hot engine coolant through an aluminum matrix while the blower pushes air across its fins to heat the cabin and feed the defrost mode.

• Aluminum core: built with an aluminum heater core matrix.
• Heavy-duty construction: designed for durability in daily service.
• O.E. fit, form & function: engineered to match the original for a straightforward replacement.
• Independently tested: checked for quality and performance, backed by Four Seasons' decades of mobile A/C experience.

Weak or cold heat from the vents, a sweet coolant smell inside, fogged glass, or damp carpet on the passenger side are common signs a heater core may be leaking or clogged. If a failed heater core is the cause, this unit replaces it. This part covers 56 GM applications across Chevrolet, GMC and Cadillac — see the Buyer's Guide tab for the full year-make-model list and engine details.