Frequent question: How do you know if a spark plug is original?

Is there fake NGK Spark Plug?

Bottom is the real deal and the fake is up top. If it doesn’t have the Ngk website, it is a fake. Once again genuine on the left. … With them out of the package you will notice that a NGK plug has a purple hue to the spark plug while a knockoff is more yellow, also it has a much more mirror finish.

Does Amazon sell fake sparkplugs?

Majority of spark plugs on Amazon are fakes. Surprise. That’s right even if seller says “NGK” or “Denso” they are completely counterfeit. Amazon doesn’t seem to care about this and the revenue on parts like this are huge if think about it.

How do you check NGK Spark Plugs?

How to Avoid Counterfeit NGK Spark Plugs

  1. Look at the top of your spark plug. There is a slight hollow in the top of NGK spark plugs. …
  2. Check your spark plugs’ threads and stamps. …
  3. Check the alignment of the brand name. …
  4. Check for a number on the hex nut. …
  5. Look closely at the packaging.


How can you tell a real Bosch Spark Plug?

To verify whether the product is genuine, first check the holographic properties of the Bosch Secure Code Label. For genuine Bosch products, the secure code and logo on the Bosch Secure Code Label should glimmer in rainbow colours when it is exposed to direct light.

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Which kind of spark plug is better?

Iridium is said to be six times harder and eight times stronger than platinum with a 700° higher melting point. Iridium spark plugs have extremely fine electrodes while retaining excellent wear characteristics. Thanks to its strength, iridium spark plugs can last up to 25% longer than comparable platinum spark plugs.

Are NGK Spark Plugs Made in USA?

United States

The company produces both spark plugs and oxygen sensors in Sissonville, West Virginia.

Are NGK plugs made in Japan?

NGK is a Japanese company. The actual name is Nippon Tokusyu Togyo Kabushiki gaisha. Most of their stuff is Made in Japan, but some of it is made in their factories in the USA.

What do the letters and numbers mean on NGK Spark Plugs?

The heat rating is a measure of the amount of heat dissipation. The heat range of a spark plug is the range in which the plug works well thermally. The heat rating of each NGK spark plug is indicated by a number; lower numbers indicate a hotter type, higher numbers indicate a colder type.