Marine Spark Plug Wire Set for Mercruiser V8 Thunderbolt or Delco EST Replaces 84-816608Q61;
Marine Spark Plug Wire Set for Mercruiser V8 Thunderbolt or Delco EST Replaces 84-816608Q61

Marine Spark Plug Wire Set for Mercruiser V8 Thunderbolt Replaces Mercruiser 84-816608Q61. Fits all small block (5.0-5.7L) and big block (7.4)L engines with Thunderbolt ignition except for the 454 Hi Performance. Also will f...

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Marine Spark Plug Wire Set for Mercruiser V8 Thunderbolt Replaces Mercruiser 84-816608Q61. Fits all small block (5.0-5.7L) and big block (7.4)L engines with Thunderbolt ignition except for the 454 Hi Performance. Also will fit Delco EST V8 systems! 8mm premium wires with stainless steel core. Wire color may vary.

  • 8 mm wire
  • Stainless Steel Core!
  • Will fit Thunderbolt or Delco EST systems!
  • 8 mm wire
  • Stainless Steel Core!
  • Will fit Thunderbolt or Delco EST systems!

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