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Fits the following 2010 Mazda 3 Submodels:
Mazdaspeed | 4 Cyl 2.3 L GAS
2010 Mazda 3 Spark Plug Parts and Q&A
Q: What are the steps and tools necessary for replacing spark plugs on 2010 Mazda 3?
A: Valve covers have centers where spark plugs are placed. The tools are a spark plug socket, ratchet, extensions, gap gauge and torque wrench. Install the right plugs, adjust openings, allow engine to cool, uncover, unscrew ignition coils (disconnection connector, loosen fastener), clean up, unplug, check-up, apply anti-seize, hand thread, then tighten, re-repeat.