Buy 2003 Chevrolet Express 3500 Base Extended Passenger Van 4.8L Vortec V8 A/T HVAC Heater Core. 1/2, 3 - OEM Chevrolet Part # 52497763 (52468013)

HVAC Heater Core.
For Auxiliary HVAC. For Primary HVAC. HVAC Heater Core.

Fits Colorado, Express 1500, Express 2500, Express 3500, P30 , Savana 1500, Savana 2500, Savana 3500

1/2, 3/4 & 1 Ton, 1996 New Style, INSTRUMENT PANEL. Express 2500. Express 3500. Express, Savana. FRONT. INSTRUMENT PANEL. REAR. Savana 2500. Savana 3500.
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 2003 Chevrolet Express 3500 needs to have the heater core replaced, it's a job best left to a Chevrolet trained technician.