Move engine heat into the cabin with the Four Seasons heater core, part number 90483, an aluminum front heater core built for O.E. fit, form and function. It fits many vehicles, among them the 1988-2002 Chevrolet C1500, 1988-1999 Chevrolet K1500 and 1995-2000 Chevrolet Tahoe. See the Buyer's Guide tab for the full list and engine details.
As the HVAC heater core, it works like a small radiator. Hot engine coolant flows through its passages, and the blower pushes air across it to warm the cabin and help the defroster clear the glass. It is a direct-fit replacement for the listed applications.
- Aluminum heater core: Four Seasons describes 90483 as an aluminum unit.
- Heavy-duty construction: Built heavy-duty for product durability.
- O.E. fit, form and function: Engineered to match the original part's fit, form and function.
- Independently tested: An independent party tests it for quality and performance.
- Mobile A/C background: Four Seasons has more than 50 years of mobile A/C experience.
Signs a heater core may need replacing: weak or no cabin heat, a sweet coolant smell inside the vehicle, a greasy film fogging the windshield, damp floor carpet, or coolant loss with no visible outside leak. Diagnose the cause first. If a leaking or clogged core is the problem, this unit replaces it.
