
The Gates heater (top) molded coolant hose for 2007–2009 Mazda 3 2.0L four-cylinder is a direct-fit replacement for the heater inlet connection. It restores proper coolant flow to the heater core and replaces worn or cracked tubing. Use this top heater hose when servicing the Mazda 3 HVAC or cooling system to preserve factory routing and ensure consistent cabin heating and coolant circulation.
Gates 07-09 Mazda 3 4-Cyl. 2.0L Heater (Top) Molded Coolant Hose