Buy 1999 Chevrolet S10 Base Standard Cab Pickup Stepside HVAC Heater Core. 1998-05. 1998-2004. Blazer - OEM Chevrolet Part # 52473178

HVAC Heater Core.
HVAC Heater Core.

HVAC Heater Core

Fits Blazer, Bravada, Jimmy , S10 , S15 , Sonoma

1998-05. 1998-2004. Blazer/Jimmy. Bravada. Pick-Up.
Heater Core - Repair or Replace
Your vehicle’s heater core handles hot water from your engine’s cooling system and transfers the heat to the cabin in the form of comforting heat from your vents. A failed heater core can leak that water—which is also called coolant or antifreeze—onto the floor on the passenger side. If your 1999 Chevrolet S10 needs to have the heater core replaced, it's a job best left to a Chevrolet trained technician.