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Engine Block Heater | Mazda3 Sedan & Hatchback (2004-2009)

Don’t get caught shivering and rubbing your hands together for warmth in the cold Canadian weather, as you attempt to turn your Mazda3 on. When temperatures drop, the oil your engine use thickens, causing less oil flow to run the engine which causes more work and friction - wearing out your engine, starter and battery parts faster. Block heaters warms your engine coolant which warms the engine block and oil and in return, helps reduce stress to your engine, battery, starter motor and more. A warm engine reduces your Mazda3's emission and also uses less fuel.

Installation Option


  • Ease engine start-up and warm your Mazda3 faster in extremely cold weathers
  • Ensures faster defrosting of windows
  • Protects and reduces stress to your engine, starter and battery from wearing out quicker
  • Reduces idling which reduces fuel consumption and emissions
  • Simple, easy to use
  • Includes: Block Heater, Harness
  • Part #:
    • Block Heater: 0000-8V-H01 -M3

Special Notes

  • Applicable model years:
    • Mazda3 Sedan & Hatchback: 2004, 2005, 2006, 2007, 2008, 2009
    • 2.0L and 2.3L Engines
  • Replacement Harness, 0000-8V-H10 -M3, is no longer available