Four Seasons HVAC Heater Core P/N:98552A

Restore warm cabin air and clear defrost with the FOUR SEASONS heater core 98552A, an aluminum front heater core built to drop into the HVAC housing of a wide range of classic Chevrolet and GMC trucks and SUVs. It's a direct-fit replacement for applications such as the 1973-1974 and 1987-1991 Chevrolet Blazer, 1975-1986 Chevrolet C10, 1987-1991 Chevrolet Suburban and 1973-1990 GMC Jimmy — 88 applications in all, so see the Buyer's Guide tab for the full list.

The heater core works like a small radiator behind the dash: hot engine coolant flows through it while the blower pushes cabin air across its fins to warm the interior and feed the defrost vents. If a leaking or clogged core is the cause of weak heat or a foggy windshield, this replaces it.

• Aluminum core: aluminum construction for coolant-to-air heat transfer.
• Heavy-duty build: constructed for durability.
• O.E. fit, form & function: engineered to match the original's fit and function.
• Independently tested: checked for proven quality and performance.

Backed by Four Seasons' decades of mobile A/C experience.