NGK DPR7EA-9

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  • D- Meaning it has a 12mm thread size and a 18mm hex size
  • P- Projected insulator type
  • R- Resistor Type
  • 7- Position on heat range from 2-12 (2 hottest, 12 coldest)
  • E- 19mm (3/4") thread reach.
  • A- Special Design
  • -
  • 9- Here the 9 means it has a 0.9mm Gap or .036"

Also compatible[edit]