Mazda 3 Radiators and Coolers
This page brings together radiators and coolers for the Mazda 3, covering model years 2003–2025. The range includes radiators, automatic transmission oil coolers, and radiator supports in direct-fit and universal options. Choose your model year above and this page keeps only the radiators and coolers that fit your Mazda 3. Each listing is matched to our vehicle fitment data before it appears here.
HPS Performance Products High Temp Reinforced Silicone Intercooler Turbo Boot Kit
Mishimoto R2402-AT Aluminum Replacement Radiator for 1999-2002 Subaru Forester
Keystone MA1225150C Radiator Support Assembly Without Radar Cruise
Keystone MA1225147OE Front Radiator Support Without Smart City Brake
Keystone MA1225171C Front Radiator Support for Mazda 3 Sedan/Hatchback with Radar Cruise Control
Keystone MA1225150 Radiator Support for Mazda Without Radar Cruise Control - 3/6
Keystone MA1225146OE Front Radiator Support Composite Without Radar Cruise
Keystone MA1225149 Radiator Support with Smart City Brake and Radar Cruise
Representative Photo, actual item may vary
Representative Photo, actual item may vary
Keystone MA1225147C Radiator Support CAPA Certified Plastic OEM Replacement
Representative Photo, actual item may vary
Keystone MA1225147 Radiator Support OEM Replacement Plastic w/ Radar Cruise Control
Keystone MA3014109 OEM Replacement Coolant Reservoir for Mazda 3 Without Cap
Representative Photo, actual item may vary
Keystone MA1225149C Bolt-In Front Radiator Support with Smart City Brake & Radar Cruise
What's here for your Mazda 3
- Radiators — OE replacement, direct-fit, and performance styles
- Automatic Transmission Oil Coolers — universal and direct-fit options
- Radiator Supports — front replacement kits and components
The widest selection here comes from DENSO, Hayden Automotive, Keystone, and Four Seasons, spanning a broad range of fitment styles and part types 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.