Buy 2012 Cadillac Escalade EXT HVAC Heater Core. Trailblazer; Main Heater Core. Heater Core - Repair Make, Model, Needs - OEM Cadillac Part # 42677734

Core Assembly - Heater. HVAC Heater Core.
HVAC Heater Core.

HVAC Heater Core

Fits Encore GX, Trailblazer

Trailblazer; Main Heater Core.
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 2012 Cadillac Escalade EXT needs to have the heater core replaced, it's a job best left to a Cadillac trained technician.