Buy OEM 2023 Mazda Part # BBM561A11 (BBM5-61-A11). Seal. Heater. Case. (Upper). W/AUTO AC. W/O AUTO AC. Heater Core - Repair or Replace Your vehicle’s heater core handles hot water from

Heater Core Case Seal. HVAC Blower Case Seal. HVAC Heater Core Seal. Gasket. HVAC Core. Lining, Blower Unit. Included with: AC & Heater assembly.

HVAC Heater Core SealHVAC Blower Case SealHeater Core Case Seal

Fits 3, 5

W/AUTO AC. W/O AUTO AC.
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 2023 Mazda needs to have the heater core replaced, it's a job best left to a Mazda trained technician.