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S&G Tool Aid 23970 Deluxe Spark Tester Set - In-line Spark Plug Checker Kit


  • $16.38


  • Use on even newer vehicles that have recessed spark plugs
  • A flashing blub indicates delivery of fule and ignition problems
  • If there is a spark plug, plug wire, mechanical, fuel injection or even electrical problems are pinpointed
  • Technician can check visually with a duplicated view of the ignition system

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