TYC HVAC Heater Core. 1994 Mazda B3000 Submodel: Base; BodyType: Extended Cab Pickup; Engine: 3.0L V6;. 1994 Mazda B3000 Submodel: Base; BodyType: Standard Cab Pickup; Engine: 3.0L V6;. 1994 Mazda B3000 Submodel: SE; BodyType: Extended Cab Pickup; Engine: 3.0L V6;.
