Mazda 3 Thermostats and Housings
This page brings together thermostats and housings for the Mazda 3, covering model years 2004 through 2024. The range includes engine coolant thermostats, thermostat housings, housing assemblies, and water outlets — available as OE replacement parts and kits. Choose your model year above and this page keeps only the thermostats and housings that fit your Mazda 3. Each listing is matched to our vehicle fitment data before it appears here.
Representative Photo, actual item may vary
What's here for your Mazda 3
- Engine Coolant Thermostat — OE replacement units designed to fit the Mazda 3's cooling system
- Engine Coolant Thermostat Housing — the mounting body that secures the thermostat in place
- Engine Coolant Thermostat Housing Assembly — complete assemblies combining the housing and related components in a single kit
- Engine Coolant Water Outlet — the outlet fitting through which coolant exits the engine
The widest selection here comes from Motorad, Dorman, Beck/Arnley, and Facet, each offering a broad range of thermostat and housing components for the Mazda 3. Other categories Mazda 3 owners shop for: Mazda 3 Springs and Suspension Parts, Mazda 3 Shocks and Struts and Mazda 3 Brake Rotors and Drums, or browse all Mazda 3 parts and accessories.