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Review on Autolite XP5683-4PK Iridium XP Spark Plug Review: Pack of 4, White by Mark Adams

Revainrating 3 out of 5

Check them when you receive them

Spark plugs must be supplied with factory gaps as they have a very fragile iridium tip. You must not tear them apart yourself, otherwise you may damage them. Added to this were mine, broken as if they had fallen on part of the electrode. 2 out of 4 came like this.

Pros
  • Great for a small home
Cons
  • Quality