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Marine Spark Plug Wire Set for Mercruiser V8 Thunderbolt or Delco EST Replaces 84-816608Q61Marine 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 c...$41.95$41.95 -
Spark Plug Wire Set for Mercruiser Thunderbolt V6 and Delco EST V6 Replaces 84-816761Q16Ignition Wire Set for Mercruiser Thunderbolt V6 and Delco EST V6. Replaces Mercruiser 84-816761Q16. Fits: Crusader 229, 262 (4.3L) V6 with Electronic Ignition; Indmar/Marine Power 262 (4.3L) V6 with Electronic Ignition; Mercruiser 185MR, 205MR, 4.3XL with Thunderbolt ignition; OMC Sterndrive 262 (4....$31.95$31.95
