Buy 2001 Mazda B2500 2.5L M/T SE Standard Cab Pickup Fleetside HVAC Heater Core Seal. To dash. Heater - OEM Mazda Part # ZZM0611A2 (ZZM0-61-1A2)

Seal. Heater.
HVAC Heater Core Seal. Included in Heater assembly. HeatE. Door. HVAC Core.

HVAC Heater Core Seal

Fits B2300, B2500, B3000, B4000

To dash.
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 2001 Mazda B2500 needs to have the heater core replaced, it's a job best left to a Mazda trained technician.