Mazda Spark Plugs Buyer's Guide

Spark plugs may be small parts (compared to most of the other parts on your Mazda), but they're really important in ensuring that the engine starts up and runs smoothly at all times. Spark plugs are low maintenance parts, but they do need to be checked and replaced periodically. If you're looking for more information on spark plugs and maintaining them, look no further than this buyer's guide!

What are Spark Plugs?

A spark plug is a small elongated part that draws power from the ignition coil and creates a lighting-like spark of electricity. The spark then ignites the fuel inside the piston chamber of the engine. The series of  little explosions power the car. Without functioning spark plugs, your engine couldn't start or run.

For a more thorough explanation of spark plugs, check out this article.

Identifying Bad Spark Plugs

Spark plugs commonly go bad after about 50-100K miles. It's important to check your spark plugs as soon as you notice some symptoms of a bad spark plug.

The most common factors of a failing spark plug are:

  • Poor drivability
  • Difficultly starting the engine
  • Increased fuel consumption
  • Sluggish acceleration

If you want to inspect your spark plugs to see if they are bad, first remove the spark plugs. Then visually inspect them for:

  • Dull black carbon deposits
  • Oily deposits
  • Yellow or brownish cinder-like deposits
  • Melted electrodes
  • Electrode erosion
  • Cracks
  • Corrosion

This guide will walk you through the process of checking your spark plugs.

OEM Vs. Aftermarket Spark Plugs

When it's time to replace spark plugs, some Mazda owners are on the fence between OEM and aftermarket spark plugs. Aftermarket spark plugs can be cheaper than OEM spark plugs, but they come with some issues. Are aftermarket spark plugs really worth the few bucks you'll save? This guide will help you weigh the pros and cons of OEM and aftermarket spark plugs.

To sum it up, OEM spark plugs are the better and safer option because they're designed with the right specs and high quality materials. Even better, OEM spark plugs don't have to be more expensive than aftermarket spark plugs! We offer wholesale pricing for genuine OEM Mazda parts, including spark plugs. So you can get genuine OEM spark plugs for the same price as aftermarket spark plugs if you order them from us. Take a look at our catalog to see how much money you can save on OEM spark plugs!